Cancer Research and Treatment

Original Articles

The HDAC Inhibitor Entinostat Mediates HER2 Downregulation in Gastric Cancer, Providing the Basis for Its Particular Efficacy in HER2 Amplified Tumors and in Combination Therapies: Tamara Zenz, Robert Jenke, René Thieme, Tim Kahl, Hannes Borchardt, Ines Gockel, Finn K Hansen, Achim Aigner, Thomas RH Büch; Received June 10, 2024 Accepted November 28, 2024 Published online December 10, 2024; DOI: https://doi.org/10.4143/crt.2024.546 [Accepted]

Abstract PDF: Purpose
HER2 inhibition represents a therapeutic approach with proven clinical efficacy in gastric cancer. However, resistance against HER2-directed therapeutics highlights the need for alternative approaches or drug combinations. Histone deacetylase inhibitors (HDACi) display a broad spectrum of antitumor properties, which may include effects on receptor tyrosine kinases.
Materials and Methods
We analyzed the effects of the class I HDACi entinostat in a panel of HER2-amplified and non-amplified gastric adenocarcinoma cells in 2D cell culture as well as in tumor slice models ex vivo and in patient-derived xenografts in vivo. Effects on protein expression / signal transduction were evaluated by immunoblotting and quantitative RT-PCR.
Results
HDAC inhibition reduced HER2 protein expression independently of initial HER2 expression levels. This was associated with the upregulation of the HER2-inhibiting microRNA miR-205. The downregulation of HER2 resulted in reduced AKT phosphorylation, apoptosis induction and antiproliferative effects, with particularly high efficiency in HER2-amplified gastric cancer cells. Inhibiting HER2 by a specific kinase inhibitor in gastric cancer cells with low basal HER2 expression led to HER2 upregulation. This was reversed by entinostat treatment and provided the basis for synergistic cell inhibition upon double treatment.
Conclusion
We describe the downregulation of HER2 in gastric carcinoma cells upon HDACi treatment. Concomitantly, cells with high basal or treatment-induced HER2 expression showed most profound sensitivities towards HDACi. These findings may thus provide the basis for HDACi treatment as a therapeutic option (1) particularly valuable in HER2-amplified gastric cancer and (2) particularly useful in combination therapies with HER2 inhibitors.

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Association of Pro-inflammatory Cytokines with Gastric Cancer Risk: A Case-Cohort Study: Seungju Baek, Eunjung Park, Eun Young Park; Received July 29, 2024 Accepted November 18, 2024 Published online November 19, 2024; DOI: https://doi.org/10.4143/crt.2024.718 [Accepted]

Abstract PDF: Purpose
This study aimed to assess the association between inflammatory cytokines and the risk of gastric cancer (GC).
Materials and Methods
We conducted a case-cohort study using Korean National Cancer Center Community (KNCCC) cohort data to investigate the associations between pro-inflammatory, anti-inflammatory cytokines, inflammatory mediators, and GC risk in the Korean general population (GC cases: n=159, subcohort: n=822). Serum levels of inflammatory cytokines were measured using Quantikine® ELISA and analyzed using a Cox proportional hazards regression model.
Results
Compared to those with the lowest serum interleukin 6 (IL-6) levels, the risk of GC significantly increased in the second (HR: 3.48 [1.73-6.99]), third (HR: 3.74 [1.91-7.29], and fourth quartiles (HR: 3.79 [1.93-7.48]). Elevated levels of interleukin 1β (IL-1β) (HR: 1.57 [1.12-2.21]) and interferon gamma (IFN-γ) (HR: 2.49 [1.73-3.58]) were also associated with an increased risk of GC.
Conclusion
The findings of this study indicate associations between pro-inflammatory cytokines (IL-6, IL-1β, and IFN-γ) and the risk of GC, suggesting that regulating these cytokine levels may aid in GC prevention.

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Special Article

Trends in Cancer-Screening Rates in Korea: Findings from the National Cancer Screening Survey, 2004-2023: EunKyo Kang, Kui Son Choi, Jae Kwan Jun, Yeol Kim, Hyeon Ji Lee, Chang Kyun Choi, Tae Hee Kim, Sun Hwa Lee, Mina Suh; Received March 31, 2024 Accepted August 1, 2024 Published online August 2, 2024; DOI: https://doi.org/10.4143/crt.2024.325 [Epub ahead of print]

Abstract PDF Supplementary Material: Purpose
This study aimed to report the overall national trends in the rates of cancer screening based on recommendations and provide insights into the changing trends of these rates across different demographics.
Materials and Methods
This study used data from the Korean National Cancer Screening Survey (KNCSS), which surveys nationwide cancer-screening rates and includes 4,500 individuals meeting the Korean National Cancer Screening Program (NCSP) protocol age criteria. Cancer-screening rates were assessed using structured questionnaires; yearly trends were analyzed for both lifetime cancer-screening rates and rates of screening based on recommendations, and subgroup analyses were performed based on age and sex.
Results
The rates of cancer screening based on recommendations showed significant increments: the stomach cancer-screening rate increased from 39.2% in 2004 to 77.5% in 2023 (3.50% per year), the liver cancer-screening rate increased from 20.0% to 48.8% (4.30% per year), and the colorectal cancer, increased from 19.9% to 70.7% (5.15% per year). The breast cancer-screening rate increased from 33.2% to 72.7% (2.88% per year), and the cervical cancer, increased from 58.3% to 70.2% (1.08% per year). Despite some differences, particularly in relation to sociodemographic factors, screening rates increased significantly for all cancer types.
Conclusion
Cancer-screening rates in Korea increased consistently from 2004 to 2023, demonstrating the effectiveness of the national cancer-screening program. However, the increments in breast, cervical and lung cancer-screening rates were relatively lower, indicating the need for additional efforts and strategies.

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Original Articles

Proximal Gastrectomy Is Associated with Lower Incidence of Anemia and Vitamin B12 Deficiency Compared to Total Gastrectomy in Patients with Upper Gastric Cancer: Jeong Ho Song, Sung Hyun Park, Minah Cho, Yoo Min Kim, Woo Jin Hyung, Hyoung-Il Kim; Received March 29, 2024 Accepted July 2, 2024 Published online July 3, 2024; DOI: https://doi.org/10.4143/crt.2024.319 [Epub ahead of print]

Abstract PDF Supplementary Material PubReader ePub

Purpose
Proximal gastrectomy is an alternative to total gastrectomy (TG) for early gastric cancer (EGC) treatment in the upper stomach. However, its benefits in terms of perioperative and long-term outcomes remain controversial. The aim of this study was to compare the perioperative, body compositional, nutritional, and survival outcomes of patients undergoing proximal gastrectomy with double-tract reconstruction (PG-DTR) and TG for pathological stage I gastric cancer in upper stomach.
Materials and Methods
The study included 506 patients who underwent gastrectomy for pathological stage I gastric cancer in the upper stomach between 2015 and 2019. Clinicopathological, perioperative, body compositional, nutritional, and survival outcomes were compared between the PG-DTR and TG groups.
Results
The PG-DTR and TG groups included 197 (38.9%) and 309 (61.1%) patients, respectively. The PG-DTR group had a lower rate of early complications (p=0.041), lower diagnosis rate of anemia and vitamin B12 deficiency (all p < 0.001), and lower replacement rate of iron and vitamin B12 compared to TG group (all p < 0.001). The PG-DTR group showed reduced incidence of sarcopenia at 6-months postoperatively, preserved higher amount of visceral fat after surgery (p=0.032 and p=0.040, respectively), and showed a higher hemoglobin level (p=0.007). Oncologic outcomes were comparable between the groups.
Conclusion
The PG-DTR for EGC located in the upper stomach offered advantages of fewer complications, lower incidence of anemia and vitamin B12 deficiency, less decrease in visceral fat volume, and similar survival compared to TG. Consequently, PG-DTR may be considered a superior alternative treatment option to TG.

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Proximal Gastrectomy for Upper-third Early Gastric Cancer
Guanhong Min, Kwangyong Kim, Seonghoon Cho, Jaewoo Shim
Journal of Digestive Cancer Research.2024; 12(2): 68. CrossRef

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Gastrointestinal cancer

Varlitinib and Paclitaxel for EGFR/HER2 Co-expressing Advanced Gastric Cancer: A Multicenter Phase Ib/II Study (K-MASTER-13): Dong-Hoe Koo, Minkyu Jung, Yeul Hong Kim, Hei-Cheul Jeung, Dae Young Zang, Woo Kyun Bae, Hyunki Kim, Hyo Song Kim, Choong-kun Lee, Woo Sun Kwon, Hyun Cheol Chung, Sun Young Rha; Cancer Res Treat. 2024;56(4):1136-1145. Published online April 29, 2024; DOI: https://doi.org/10.4143/crt.2023.1324

Abstract PDF Supplementary Material PubReader ePub

Purpose
Varlitinib is a pan-human epidermal growth factor receptor (HER) inhibitor targeting epidermal growth factor receptor (EGFR), human epidermal growth factor receptor 2 (HER2), and HER4. We present a phase Ib/II study of a combination of varlitinib and weekly paclitaxel as a second-line treatment for patients with EGFR/HER2 co-expressing advanced gastric cancer (AGC).
Materials and Methods
Patients whose tumors with EGFR and HER2 overexpression by immunohistochemistry (≥ 1+) were enrolled. Varlitinib and paclitaxel were investigated every 4 weeks. After determining the recommended phase II dose (RP2D) in phase Ib, a phase II study was conducted to evaluate the antitumor activity.
Results
RP2D was treated with a combination of varlitinib (300 mg twice daily) and paclitaxel. Among 27 patients treated with RP2D, the median progression-free survival and overall survival (OS) were 3.3 months (95% confidence interval [CI], 1.7 to 4.9) and 7.9 months (95% CI, 5.0 to 10.8), respectively, with a median follow-up of 15.7 months. Among 16 patients with measurable disease, the objective response rate (ORR) and disease control rate were 31% and 88%, respectively. Patients with strong HER2 expression (n=8) had a higher ORR and longer OS, whereas those with strong EGFR expression (n=3) had poorer outcomes. The most common adverse events (AEs) of any grade were neutropenia (52%), diarrhea (27%), aspartate aminotransferase/alanine transaminase elevation (22%), and nausea (19%). No treatment-related deaths or unexpected AEs resulting from treatment cessation were observed in patients with RP2D.
Conclusion
A combination of varlitinib and paclitaxel displayed manageable toxicity and modest antitumor activity in patients with EGFR/HER2 co-expressing AGC who progressed after first-line chemotherapy.

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Unraveling the future: Innovative design strategies and emerging challenges in HER2-targeted tyrosine kinase inhibitors for cancer therapy
Sixiang Zheng, Ruixian Chen, Lele Zhang, Lun Tan, Lintao Li, Fangyi Long, Ting Wang
European Journal of Medicinal Chemistry.2024; 276: 116702. CrossRef

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Effector Function Characteristics of Exhausted CD8+ T-Cell in Microsatellite Stable and Unstable Gastric Cancer: Dong-Seok Han, Yoonjin Kwak, Seungho Lee, Soo Kyung Nam, Seong-Ho Kong, Do Joong Park, Hyuk-Joon Lee, Nak-Jung Kwon, Hye Seung Lee, Han-Kwang Yang; Cancer Res Treat. 2024;56(4):1146-1163. Published online April 12, 2024; DOI: https://doi.org/10.4143/crt.2024.317

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Purpose
Gastric cancer exhibits molecular heterogeneity, with the microsatellite instability–high (MSI-H) subtype drawing attention for its distinct features. Despite a higher survival rate, MSI-H gastric cancer lack significant benefits from conventional chemotherapy. The immune checkpoint inhibitors, presents a potential avenue, but a deeper understanding of the tumor immune microenvironment of MSI-H gastric cancer is essential.
Materials and Methods
We explored the molecular characteristics of CD8+ T-cell subtypes in three MSI-H and three microsatellite stable (MSS) gastric cancer samples using single-cell RNA sequencing and spatial transcriptome analysis.
Results
In MSI-H gastric cancer, significantly higher proportions of effector memory T cell (Tem), exhausted T cell (Tex), proliferative exhausted T cell (pTex), and proliferative T cell were observed, while MSS gastric cancer exhibited significantly higher proportions of mucosal-associated invariant T cell and natural killer T cell. In MSI-H gastric cancer, Tex and pTex exhibited a significant upregulation of the exhaustion marker LAG3, as well as elevated expression of effector function markers such as IFNG, GZMB, GZMH, and GZMK, compared to those in MSS gastric cancer. The interferon γ (IFN-γ) signaling pathway of Tex and pTex was retained compared to those of MSS gastric cancer. The spatial transcriptome analysis demonstrates the IFN-γ signaling pathway between neighboring Tex and malignant cell, showcasing a significantly elevated interaction in MSI-H gastric cancer.
Conclusion
Our study reveals novel finding indicating that IFN-γ signaling pathway is retained in Tex and pTex of MSI-H gastric cancer, offering a comprehensive perspective for future investigations into immunotherapy for gastric cancer.

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Simvastatin induces ferroptosis and activates anti-tumor immunity to sensitize anti-PD-1 immunotherapy in microsatellite stable gastric cancer
Yumei Ning, Shilin Fang, Runan Zhang, Jun Fang, Kun Lin, Yang Ding, Haihang Nie, Jingkai Zhou, Qiu Zhao, Hengning Ke, Haizhou Wang, Fan Wang
International Immunopharmacology.2024; 142: 113244. CrossRef

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General

Phase 1/2a Study of Rivoceranib, a Selective VEGFR-2 Angiogenesis Inhibitor, in Patients with Advanced Solid Tumors: Yoon-Koo Kang, Min-Hee Ryu, Yong Sang Hong, Chang-Min Choi, Tae Won Kim, Baek-Yeol Ryoo, Jeong Eun Kim, John R. Weis, Rachel Kingsford, Cheol Hee Park, Seong Jang, Arlo McGinn, Theresa L. Werner, Sunil Sharma; Cancer Res Treat. 2024;56(3):743-750. Published online January 18, 2024; DOI: https://doi.org/10.4143/crt.2023.980

Abstract PDF Supplementary Material PubReader ePub: Purpose
This study aimed to report the results from an early-phase study of rivoceranib, an oral tyrosine kinase inhibitor highly selective for vascular endothelial growth factor receptor 2, in patients with advanced solid tumors.
Materials and Methods
In this open-label, single-arm, dose-escalating, multicenter three-part phase 1/2a trial, patients had advanced solid tumors refractory to conventional therapy. Part 1 evaluated the safety and pharmacokinetics of five ascending once-daily doses of rivoceranib from 81 mg to 685 mg. Part 2 evaluated the safety and antitumor activity of once-daily rivoceranib 685 mg. Part 3 was conducted later, due to lack of maximum tolerated dose determination in part 1, to evaluate the safety and preliminary efficacy of once-daily rivoceranib 805 mg in patients with unresectable or advanced gastric cancer.
Results
A total of 61 patients were enrolled in parts 1 (n=25), 2 (n=30), and 3 (n=6). In parts 1 and 2, patients were white (45.5%) or Asian (54.5%), and 65.6% were male. The most common grade ≥ 3 adverse events were hypertension (32.7%), hyponatremia (10.9%), and hypophosphatemia (10.9%). The objective response rate (ORR) was 15.2%. In part 3, dose-limiting toxicities occurred in two out of six patients: grade 3 febrile neutropenia decreased appetite, and fatigue. The ORR was 33%.
Conclusion
The recommended phase 2 dose of rivoceranib was determined to be 685 mg once daily, which showed adequate efficacy with a manageable safety profile (NCT01497704 and NCT02711969).

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Gastrointestinal cancer

NESC Multicenter Phase II Trial in the Preoperative Treatment of Gastric Adenocarcinoma with Chemotherapy (Docetaxel-Cisplatin-5FU+Lenograstim) Followed by Chemoradiation Based 5FU and Oxaliplatin and Surgery: Laurent Mineur, Frederi Plat, Françoise Desseigne, Gael Deplanque, Mohamed Belkacemi, Laurence Moureau-Zabotto, Carlos D. Beyrne, Khadija Jalali, Stéphane Obled, Denis Smith, Léa Vazquez, Rania Boustany; Cancer Res Treat. 2024;56(2):580-589. Published online October 5, 2023; DOI: https://doi.org/10.4143/crt.2023.812

Abstract PDF Supplementary Material PubReader ePub

Purpose
Preoperative chemoradiation (CRT) is expected to increase the rate of curative resection and complete histological response. In this trial, we investigated the efficacy of a neoadjuvant CRT regimen in gastric adenocarcinoma (NCT01565109 trial).
Materials and Methods
Patients with stage IB to IIIC gastric adenocarcinoma, endoscopy ultrasound and computed tomography–scan diagnosed, were eligible for this phase II trial. Neoadjuvant treatment consisted of 2 cycles of chemotherapy with DCF (docetaxel, cisplatin, and 5-fluorouracil [5FU]) followed by preoperative CRT with oxaliplatin, continuous 5FU and radiotherapy (45 Gy in 25 fractions of 1.8 Gy, 5 fractions per week for 5 weeks) administered before surgery. R0-resection rate, pathological complete response (pathCR) rate, and survival (progression-free survival [PFS] and overall survival [OS]) were evaluated as primary endpoints.
Results
Among 33 patients included, 32 patients (97%) received CRT and 26 (78.8%) were resected (R0 resection for all patients resected). Among resected patients, we report pathCR in 23,1% and pathologic major response (tumor regression grade 2 according to Mandard’s classification) in 26,9%. With a median follow-up duration of 5.82 years (range, 0.4 to 9.24 years), the estimated median OS for all 33 patients was not reached; 1-, 3-, and 5-year OS rates were 85%, 61%, and 52%, respectively. Among resected patients, those whose histological response was tumor grade regression (TRG) 1-2 had significantly better OS and PFS rates than those with a TRG 3-4-5 response (p=0.019 and p=0.016, respectively).
Conclusion
Promising results from trials involving preoperative chemoradiation followed by surgery in gastric cancer need to be further evaluated in a phase III trial.

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Efficacy of Cisplatin-Containing Chemotherapy Regimens in Patients of Pancreatic Ductal Adenocarcinoma: A Systematic Review and Meta-analysis
Obaid Ur Rehman, Eeshal Fatima, Zain Ali Nadeem, Arish Azeem, Jatin Motwani, Habiba Imran, Hadia Mehboob, Alishba Khan, Omer Usman
Journal of Gastrointestinal Cancer.2024; 55(2): 559. CrossRef
The Comparison of FLOT and DCF Regimens as Perioperative Treatment for Gastric Cancer
Gökhan Uçar, Serhat Sekmek, İrfan Karahan, Yakup Ergün, Özlem Aydın İsak, Sezai Tunç, Mutlu Doğan, Fatih Gürler, Doğan Bayram, Yusuf Açıkgöz, Selin Aktürk Esen , Burak Civelek, Fahriye Tuğba Köş , Öznur Bal, Efnan Algın, Tülay Eren, Gökşen İnanç İmamoğ
Oncology.2024; : 1. CrossRef

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Genomic and Transcriptomic Characterization of Gastric Cancer with Bone Metastasis: Sujin Oh, Soo Kyung Nam, Keun-Wook Lee, Hye Seung Lee, Yujun Park, Yoonjin Kwak, Kyu Sang Lee, Ji-Won Kim, Jin Won Kim, Minsu Kang, Young Suk Park, Sang-Hoon Ahn, Yun-Suhk Suh, Do Joong Park, Hyung Ho Kim; Cancer Res Treat. 2024;56(1):219-237. Published online August 11, 2023; DOI: https://doi.org/10.4143/crt.2023.340

Abstract PDF Supplementary Material PubReader ePub

Purpose
Bone metastasis (BM) adversely affects the prognosis of gastric cancer (GC). We investigated molecular features and immune microenvironment that characterize GC with BM compared to GC without BM.
Materials and Methods
Targeted DNA and whole transcriptome sequencing were performed using formalin-fixed paraffin-embedded primary tumor tissues (gastrectomy specimens) of 50 GC cases with distant metastases (14 with BM and 36 without BM). In addition, immunohistochemistry (IHC) for mucin-12 and multiplex IHC for immune cell markers were performed.
Results
Most GC cases with BM had a histologic type of poorly cohesive carcinoma and showed worse overall survival (OS) than GC without BM (p < 0.05). GC with BM tended to have higher mutation rates in TP53, KDR, APC, KDM5A, and RHOA than GC without BM. Chief cell-enriched genes (PGA3, PGC, and LIPF), MUC12, MFSD4A, TSPAN7, and TRIM50 were upregulated in GC with BM compared to GC without BM, which was correlated with poor OS (p < 0.05). However, the expression of SERPINA6, SLC30A2, PMAIP1, and ITIH2 were downregulated in GC with BM. GC with BM was associated with PIK3/AKT/mTOR pathway activation, whereas GC without BM showed the opposite effect. The densities of helper, cytotoxic, and regulatory T cells did not differ between the two groups, whereas the densities of macrophages were lower in GC with BM (p < 0.05).
Conclusion
GC with BM had different gene mutation and expression profiles than GC without BM, and had more genetic alterations associated with a poor prognosis.

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Targeted Sequencing in Gastric Cancer: Association with Tumor Molecular Characteristics and FLOT Therapy Effectiveness
Liudmila V. Spirina, Alexandra V. Avgustinovich, Olga V. Bakina, Sergey G. Afanas’ev, Maxim Yu. Volkov, Sergey V. Vtorushin, Irina V. Kovaleva, Tatyana S. Klyushina, Igor O. Munkuev
Current Issues in Molecular Biology.2024; 46(2): 1281. CrossRef
SLC30A2-Mediated Zinc Metabolism Modulates Gastric Cancer Progression via the Wnt/β-Catenin Signaling Pathway
Fan Li, Xiaohong Zhang, Li Feng, Xingxing Zhang
Frontiers in Bioscience-Landmark.2024;[Epub] CrossRef

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First-in-Human Phase 1 Study of a B Cell– and Monocyte-Based Immunotherapeutic Vaccine against HER2-Positive Advanced Gastric Cancer: Minkyu Jung, Jii Bum Lee, Hyo Song Kim, Woo Sun Kwon, Hyun Ok Kim, Sinyoung Kim, Myunghwan Park, Wuhyun Kim, Ki-Young Choi, Taegwon Oh, Chang-Yuil Kang, Hyun Cheol Chung, Sun Young Rha; Cancer Res Treat. 2024;56(1):208-218. Published online June 28, 2023; DOI: https://doi.org/10.4143/crt.2022.1328

Abstract PDF Supplementary Material PubReader ePub

Purpose
BVAC-B is an autologous B cell– and monocyte-based immunotherapeutic vaccine that contains cells transfected with a recombinant human epidermal growth factor receptor 2 (HER2) gene and loaded with the natural killer T cell ligand alpha-galactosylceramide. Here, we report the first BVAC-B study in patients with HER2-positive advanced gastric cancer.
Materials and Methods
Patients with advanced gastric cancer refractory to standard treatment with HER2+ immunohistochemistry ≥ 1 were eligible for treatment. Patients were administered low (2.5×10⁷ cells/dose), medium (5.0×10⁷ cells/dose), or high dose (1.0×10⁸ cells/dose) of BVAC-B intravenously four times every 4 weeks. Primary endpoints included safety and maximum tolerated BVAC-B dose. Secondary endpoints included preliminary clinical efficacy and BVAC-B-induced immune responses.
Results
Eight patients were treated with BVAC-B at low (n=1), medium (n=1), and high doses (n=6). No dose-limiting toxicity was observed, while treatment-related adverse events (TRAEs) were observed in patients treated with medium and high doses. The most common TRAEs were grade 1 (n=2) and grade 2 (n=2) fever. Out of the six patients treated with high-dose BVAC-B, three had stable disease with no response. Interferon gamma, tumor necrosis factor-α, and interleukin-6 increased after BVAC-B treatment in all patients with medium and high dose, and HER2-specific antibody was detected in some patients.
Conclusion
BVAC-B monotherapy had a safe toxicity profile with limited clinical activity; however, it activated immune cells in heavily pretreated patients with HER2-positive gastric cancer. Earlier treatment with BVAC-B and combination therapy is warranted for evaluation of clinical efficacy.

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HER2-Positive Gastric Cancer and Antibody Treatment: State of the Art and Future Developments
Magdalena K. Scheck, Ralf D. Hofheinz, Sylvie Lorenzen
Cancers.2024; 16(7): 1336. CrossRef

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GASTric Cancer HER2 Re-Assessment Study 2 (GASTHER2): HER2 Re-assessment for Initially HER2-Negative Advanced Gastric Cancer Patients after Progression on First-Line Treatment: Jaewon Hyung, Hyung-Don Kim, Min-Hee Ryu, Young Soo Park, Meesun Moon, Yoon-Koo Kang; Cancer Res Treat. 2024;56(1):199-207. Published online June 20, 2023; DOI: https://doi.org/10.4143/crt.2023.490

Abstract PDF Supplementary Material PubReader ePub: Purpose
Heterogeneous human epidermal growth factor receptor 2 (HER2) overexpression in gastric cancer may lead to a misdiagnosis of HER2 status. Accurate assessment of HER2 status is essential for optimal treatment as novel HER2-directed agents are being investigated in various clinical settings. We evaluated the usefulness of HER2 re-assessment following progression on first-line treatment in initially HER2-negative advanced gastric cancer (AGC) patients.
Materials and Methods
We enrolled 177 patients with baseline HER2-negative AGC and performed HER2 re-assessment after progression on first-line treatment from February 2012 to June 2016 at Asan Medical Center, Seoul, Korea. The re-assessed HER2 status was analyzed with baseline HER2 status and clinical characteristics.
Results
The median age was 54 years (range, 24 to 80 years), and 123 patients (69.5%) were men. Seven patients (4.0%) were HER2-positive on the re-assessment. Patients with baseline HER2 negativity confirmed by a single test (n=100) had a higher HER2-positive re-assessment rate compared to those who had repeated baseline testing (n=77) (5.0% vs. 2.6%). Among the patients with single baseline HER2 testing, the rate was higher in patients with baseline HER2 immunohistochemistry (IHC) 1+ compared to those with IHC 0 (13.4% vs. 3.6%).
Conclusion
Overall, 4.0% of patients with baseline HER2-negative AGC were HER2-positive on re-assessment, and the HER2-positive re-assessment rate was higher among patients who had a single test at baseline. HER2 re assessment may be considered for initially HER2-negative patients to determine their eligibility for HER2-directed therapy, particularly if their HER2 negativity was determined by a single test, especially if they had a single baseline HER2 IHC 1+ test.

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Functional Annotation and Gene Set Analysis of Gastric Cancer Risk Loci in a Korean Population: Hyojin Pyun, Madhawa Gunathilake, Jeonghee Lee, Il Ju Choi, Young-Il Kim, Joohon Sung, Jeongseon Kim; Cancer Res Treat. 2024;56(1):191-198. Published online June 20, 2023; DOI: https://doi.org/10.4143/crt.2022.958

Abstract PDF Supplementary Material PubReader ePub

Purpose
We aimed to identify the associated single nucleotide polymorphisms (SNPs) with gastric cancer (GC) risk by genome-wide association study (GWAS) and to explore the pathway enrichment of implicated genes and gene-sets with expression patterns.
Materials and Methods
The study population was comprised of 1,253 GC cases and 4,827 controls from National Cancer Center and an urban community of the Korean Genome Epidemiology Study and their genotyping was performed. SNPs were annotated, and mapped to genes to prioritize by three mapping approaches by functional mapping and annotation (FUMA). The gene-based analysis and gene-set analysis were conducted with full GWAS summary data using MAGMA. Gene-set pathway enrichment test with those prioritized genes were performed.
Results
In GWAS, rs2303771, a nonsynonymous variant of KLHDC4 gene was top SNP associated significantly with GC (odds ratio, 2.59; p=1.32×10^–83). In post-GWAS, 71 genes were prioritized. In gene-based GWAS, seven genes were under significant p < 3.80×10^–6 (0.05/13,114); DEFB108B had the lowest p=5.94×10^–15, followed by FAM86C1 (p=1.74×10^–14), PSCA (p=1.81×10^–14), and KLHDC4 (p=5.00×10^–10). In gene prioritizing, KLDHC4 was the only gene mapped with all three gene-mapping approaches. In pathway enrichment test with prioritized genes, FOLR2, PSCA, LY6K, LYPD2, and LY6E showed strong enrichment related to cellular component of membrane; a post-translation modification by synthesis of glycosylphosphatidylinositol (GPI)-anchored proteins pathway.
Conclusion
While 37 SNPs were significantly associated with the risk of GC, genes involved in signaling pathways related to purine metabolism and GPI-anchored protein in cell membrane are pinpointed to be playing important role in GC.

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Investigating the Shared Genetic Architecture Between Leukocyte Telomere Length and Prostate Cancer
Zhizhou Li, Maoyu Wang, Shuxiong Zeng, Ziwei Wang, Yidie Ying, Qing Chen, Chen Zhang, Wei He, Chaoyang Sheng, Yi Wang, Zhensheng Zhang, Chuanliang Xu, Huiqing Wang
The World Journal of Men's Health.2024;[Epub] CrossRef

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General

Establishment of Patient-Derived Organoids Using Ascitic or Pleural Fluid from Cancer Patients: Wonyoung Choi, Yun-Hee Kim, Sang Myung Woo, Yebeen Yu, Mi Rim Lee, Woo Jin Lee, Jung Won Chun, Sung Hoon Sim, Heejung Chae, Hyoeun Shim, Keun Seok Lee, Sun-Young Kong; Cancer Res Treat. 2023;55(4):1077-1086. Published online June 12, 2023; DOI: https://doi.org/10.4143/crt.2022.1630

Abstract PDF Supplementary Material PubReader ePub

Purpose
Patient-derived tumor cells can be a powerful resource for studying pathophysiological mechanisms and developing robust strategies for precision medicine. However, establishing organoids from patient-derived cells is challenging because of limited access to tissue specimens. Therefore, we aimed to establish organoids from malignant ascites and pleural effusions.
Materials and Methods
Ascitic or pleural fluid from pancreatic, gastric, and breast cancer patients was collected and concentrated to culture tumor cells ex vivo. Organoids were considered to be successfully cultured when maintained for five or more passages. Immunohistochemical staining was performed to compare the molecular features, and drug sensitivity was assayed to analyze the clinical responses of original patients.
Results
We collected 70 fluid samples from 58 patients (pancreatic cancer, n=39; gastric cancer, n=21; and breast cancer, n=10). The overall success rate was 40%; however, it differed with types of malignancy, with pancreatic, gastric, and breast cancers showing 48.7%, 33.3%, and 20%, respectively. Cytopathological results significantly differed between successful and failed cases (p=0.014). Immunohistochemical staining of breast cancer organoids showed molecular features identical to those of tumor tissues. In drug sensitivity assays, pancreatic cancer organoids recapitulated the clinical responses of the original patients.
Conclusion
Tumor organoids established from malignant ascites or pleural effusion of pancreatic, gastric, and breast cancers reflect the molecular characteristics and drug sensitivity profiles. Our organoid platform could be used as a testbed for patients with pleural and peritoneal metastases to guide precision oncology and drug discovery.

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PRMT1 promotes pancreatic cancer development and resistance to chemotherapy
Bomin Ku, David Eisenbarth, Seonguk Baek, Tae-Keun Jeong, Ju-Gyeong Kang, Daehee Hwang, Myung-Giun Noh, Chan Choi, Sungwoo Choi, Taejun Seol, Hail Kim, Yun-Hee Kim, Sang Myung Woo, Sun-Young Kong, Dae-Sik Lim
Cell Reports Medicine.2024; 5(3): 101461. CrossRef
Establishment and Advancement of Pancreatic Organoids
Dong Hyeon Lee
Keimyung Medical Journal.2024; 43(1): 3. CrossRef
Organoid as a promising tool for primary liver cancer research: a comprehensive review
Xuekai Hu, Jiayun Wei, Pinyan Liu, Qiuxia Zheng, Yue Zhang, Qichen Zhang, Jia Yao, Jingman Ni
Cell & Bioscience.2024;[Epub] CrossRef
The use of organoids in creating immune microenvironments and treating gynecological tumors
Ling-Feng Zhou, Hui-Yan Liao, Yang Han, Yang Zhao
Journal of Translational Medicine.2024;[Epub] CrossRef
Organoid: Bridging the gap between basic research and clinical practice
Guihu Weng, Jinxin Tao, Yueze Liu, Jiangdong Qiu, Dan Su, Ruobing Wang, Wenhao Luo, Taiping Zhang
Cancer Letters.2023; 572: 216353. CrossRef

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Gastrointestinal cancer

A Phase 3 Randomized Clinical Trial to Compare Efficacy and Safety between Combination Therapy and Monotherapy in Elderly Patients with Advanced Gastric Cancer (KCSG ST13-10): Keun-Wook Lee, Dae Young Zang, Min-Hee Ryu, Hye Sook Han, Ki Hyang Kim, Mi-Jung Kim, Sung Ae Koh, Sung Sook Lee, Dong-Hoe Koo, Yoon Ho Ko, Byeong Seok Sohn, Jin Won Kim, Jin Hyun Park, Byung-Ho Nam, In Sil Choi; Cancer Res Treat. 2023;55(4):1250-1260. Published online May 25, 2023; DOI: https://doi.org/10.4143/crt.2023.333

Abstract PDF Supplementary Material PubReader ePub

Purpose
This study evaluated whether combination therapy is more effective than monotherapy in elderly patients with metastatic or recurrent gastric cancer (MRGC) as first-line chemotherapy.
Materials and Methods
Elderly (≥ 70 years) chemo-naïve patients with MRGC were allocated to receive either combination therapy (group A: 5-fluorouracil [5-FU]/oxaliplatin, capecitabine/oxaliplatin, capecitabine/cisplatin, or S-1/cisplatin) or monotherapy (group B: 5-FU, capecitabine, or S-1). In group A, starting doses were 80% of standard doses, and they could be escalated to 100% at the discretion of the investigator. Primary endpoint was to confirm superior overall survival (OS) of combination therapy vs. monotherapy.
Results
After 111 of the planned 238 patients were randomized, enrollment was terminated due to poor accrual. In the full-analysis population (group A [n=53] and group B [n=51]), median OS of combination therapy vs. monotherapy was 11.5 vs. 7.5 months (hazard ratio [HR], 0.86; 95% confidence interval [CI], 0.56 to 1.30; p=0.231). Median progression-free survival (PFS) was 5.6 vs. 3.7 months (HR, 0.53; 95% CI, 0.34 to 0.83; p=0.005). In subgroup analyses, patients aged 70-74 years tended to have superior OS with combination therapy (15.9 vs. 7.2 months, p=0.056). Treatment-related adverse events (TRAEs) occurred more frequently in group A vs. group B. However, among severe TRAEs (≥ grade 3), there were no TRAEs with a frequency difference of > 5%.
Conclusion
Combination therapy was associated with numerically improved OS, although statistically insignificant, and a significant PFS benefit compared with monotherapy. Although combination therapy showed more frequent TRAEs, there was no difference in the frequency of severe TRAEs.

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A prognostic nomogram to predict the cancer-specific survival of patients with initially diagnosed metastatic gastric cancer: a validation study in a Chinese cohort
Ziming Zhao, Erxun Dai, Bao Jin, Ping Deng, Zulihaer Salehebieke, Bin Han, Rongfan Wu, Zhaowu Yu, Jun Ren
Clinical and Translational Oncology.2024;[Epub] CrossRef

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Molecular and Immune Profiling of Syngeneic Mouse Models Predict Response to Immune Checkpoint Inhibitors in Gastric Cancer: Dagyeong Lee, Junyong Choi, Hye Jeong Oh, In-Hye Ham, Sung Hak Lee, Sachiyo Nomura, Sang-Uk Han, Hoon Hur; Cancer Res Treat. 2023;55(1):167-178. Published online May 20, 2022; DOI: https://doi.org/10.4143/crt.2022.094

Abstract PDF Supplementary Material PubReader ePub

Purpose
Appropriate preclinical mouse models are needed to evaluate the response to immunotherapeutic agents. Immunocompetent mouse models have rarely been reported for gastric cancer. Thus, we investigated immunophenotypes and responses to immune checkpoint inhibitor (ICI) in immunocompetent mouse models using various murine gastric cancer cell lines.
Materials and Methods
We constructed subcutaneous syngeneic tumors with murine gastric cancer cell lines, YTN3 and YTN16, in C57BL/6J mice. Mice were intraperitoneally treated with IgG isotype control or an anti–programmed death-ligand 1 (PD-L1) neutralizing antibody. We used immunohistochemistry to evaluate the tumor-infiltrating immune cells of formalin-fixed paraffin-embedded mouse tumor tissues. We compared the protein and RNA expression between YTN3 and YTN16 cell lines using a mouse cytokine array and RNA sequencing.
Results
The mouse tumors revealed distinct histological and molecular characteristics. YTN16 cells showed upregulation of genes and proteins related to immunosuppression, such as Ccl2 (CCL2) and Csf1 (M-CSF). Macrophages and exhausted T cells were more enriched in YTN16 tumors than in YTN3 tumors. Several YTN3 tumors were completely regressed by the PD-L1 inhibitor, whereas YTN16 tumors were unaffected. Although treatment with a PD-L1 inhibitor increased infiltration of T cells in both the tumors, the proportion of exhausted immune cells did not decrease in the non-responder group.
Conclusion
We confirmed the histological and molecular features of cancer cells with various responses to ICI. Our models can be used in preclinical research on ICI resistance mechanisms to enhance clinical efficacy.

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Tubulointerstitial nephritis antigen-like 1 from cancer-associated fibroblasts contribute to the progression of diffuse-type gastric cancers through the interaction with integrin β1
Dagyeong Lee, In-Hye Ham, Hye Jeong Oh, Dong Min Lee, Jung Hwan Yoon, Sang-Yong Son, Tae-Min Kim, Jae-Young Kim, Sang-Uk Han, Hoon Hur
Journal of Translational Medicine.2024;[Epub] CrossRef
Safety and Efficacy of Neoadjuvant Chemoimmunotherapy in Gastric Cancer Patients with a PD-L1 Positive Status: A Case Report
Alexandra V. Avgustinovich, Olga V. Bakina, Sergey G. Afanas’ev, Liudmila V. Spirina, Alexander M. Volkov
Current Issues in Molecular Biology.2023; 45(9): 7642. CrossRef
Targeting GAS6/AXL signaling improves the response to immunotherapy by restoring the anti-immunogenic tumor microenvironment in gastric cancer
Tae Hoon Kim, Dagyeong Lee, Hye Jeong Oh, In-Hye Ham, Dong Min Lee, Yulim Lee, Zhang Zhang, Ding Ke, Hoon Hur
Life Sciences.2023; 335: 122230. CrossRef

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Aberrant DNA Methylation Maker for Predicting Metachronous Recurrence After Endoscopic Resection of Gastric Neoplasms: Cheol Min Shin, Nayoung Kim, Hyuk Yoon, Yoon Jin Choi, Ji Hyun Park, Young Soo Park, Dong Ho Lee; Cancer Res Treat. 2022;54(4):1157-1166. Published online January 18, 2022; DOI: https://doi.org/10.4143/crt.2021.997

Abstract PDF Supplementary Material PubReader ePub

Purpose
This study aimed to investigate whether MOS methylation can be useful for the prediction of metachronous recurrence after endoscopic resection of gastric neoplasms.
Materials and Methods
From 2012 to 2017, 294 patients were prospectively enrolled after endoscopic resection of gastric dysplasia (n=171) or early gastric cancer (n=123). When Helicobacter pylori was positive, eradication therapy was performed. Among them, 124 patients completed the study protocol (follow-up duration > 3 years or development of metachronous recurrence during the follow-up). Methylation levels of MOS were measured at baseline using quantitative MethyLight assay from the antrum.
Results
Median follow-up duration was 49.9 months. MOS methylation levels at baseline were not different by age, sex, and current H. pylorii infection, but they showed a weak correlation with operative link on gastritis assessment (OLGA) or operative link on gastric intestinal metaplasia assessment (OLGIM) stages (Spearman’s ρ=0.240 and 0.174, respectively; p < 0.05). During the follow-up, a total of 20 metachronous gastric neoplasms (13 adenomas and 7 adenocarcinomas) were developed. Either OLGA or OLGIM stage was not useful in predicting the risk for metachronous recurrence. In contrast, MOS methylation high group (≥ 34.82%) had a significantly increased risk for metachronous recurrence compared to MOS methylation low group (adjusted hazard ratio, 4.76; 95% confidence interval, 1.54 to 14.79; p=0.007).
Conclusion
MOS methylation can be a promising marker for predicting metachronous recurrence after endoscopic resection of gastric neoplasms. To confirm the usefulness of MOS methylation, validation studies are warranted in the future (ClinicalTrials No. NCT04830618).

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MIR124-3 and NKX6-1 hypermethylation profiles accurately predict metachronous gastric lesions in a Caucasian population
Catarina Lopes, Tatiana C. Almeida, Catarina Macedo-Silva, João Costa, Sofia Paulino, Carmen Jerónimo, Diogo Libânio, Mário Dinis-Ribeiro, Carina Pereira
Clinical Epigenetics.2024;[Epub] CrossRef
Risk assessment of metachronous gastric cancer development using OLGA and OLGIM systems after endoscopic submucosal dissection for early gastric cancer: a long-term follow-up study
Yun Suk Na, Sang Gyun Kim, Soo-Jeong Cho
Gastric Cancer.2023; 26(2): 298. CrossRef

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Trends in the Performance of the Korean National Cancer Screening Program for Gastric Cancer from 2007 to 2016: Ji Eun Ryu, Eunji Choi, Kyeongmin Lee, Jae Kwan Jun, Mina Suh, Kyu Won Jung, Kui Son Choi; Cancer Res Treat. 2022;54(3):842-849. Published online September 30, 2021; DOI: https://doi.org/10.4143/crt.2021.482

Abstract PDF Supplementary Material PubReader ePub

Purpose
The Korean National Cancer Screening Program (KNCSP) has implemented two screening methods for gastric cancer—upper gastrointestinal series (UGIS) and endoscopy—for Koreans aged ≥40 years. We aimed to assess performance trends for both screening methods.
Materials and Methods
The KNCSP database was used to evaluate individuals who underwent screening from 2007 to 2016. The final gastric cancer diagnosis was ascertained by linking with the Korean Central Cancer Registry. We conducted a prospective, cross-sectional analysis to estimate performance indicators of gastric cancer screening by UGIS and endoscopy, stratified by sociodemographic factors.
Results
We found that screening rates for gastric cancer increased from 28% to 51.7% between 2007 and 2016, and that the rate of endoscopy use for gastric cancer screening increased sharply. Cancer detection rates (CDR) of UGIS and endoscopy were 0.41 and 2.25 per 1,000 screens in 2007–2008 and 0.26 and 1.99 in 2015–2016, respectively. Interval cancer rates (ICR) per 1,000 negative screenings were 1.33 (2007–2008) and 1.21 (2015–2016) for UGIS and 1.14 (2007–2008) and 0.88 (2015–2016) for endoscopy. The sensitivity of UGIS decreased from 23.6% (2007–2008) to 17.6% (2015–2016), whereas that of endoscopy increased from 66.4% (2007–2008) to 69.3% (2015–2016). Specificity was maintained at >99% for both methods over the study period.
Conclusion
The use of endoscopy for gastric cancer screening within the KNCSP has increased. Endoscopy has higher CDR, sensitivity, and specificity, and lower ICR estimates than does UGIS.

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Cost Utility Analysis of National Cancer Screening Program for Gastric Cancer in Korea: A Markov Model Analysis
Seowoo Bae, Hyewon Lee, Eun Young Her, Kyeongmin Lee, Joon Sung Kim, Jeonghoon Ahn, Il Ju Choi, Jae Kwan Jun, Kui Son Choi, Mina Suh
Journal of Korean Medical Science.2025;[Epub] CrossRef
Barriers to upper gastrointestinal screening among the general population in high-prevalence areas: a cross-sectional study
Xin Chen, Yuan Ze, Wanya Yi, Yuling Yang, Renjuan Sun, Huiming Tu
JBI Evidence Implementation.2024; 22(2): 218. CrossRef
Carbon footprint and cost reduction by endoscopic grading of gastric intestinal metaplasia using narrow‐band imaging
Jun‐Hyung Cho, So‐Young Jin, Suyeon Park
Journal of Gastroenterology and Hepatology.2024; 39(5): 942. CrossRef
Family history and gastric cancer incidence and mortality in Asia: a pooled analysis of more than half a million participants
Dan Huang, Minkyo Song, Sarah Krull Abe, Md. Shafiur Rahman, Md. Rashedul Islam, Eiko Saito, Katherine De la Torre, Norie Sawada, Akiko Tamakoshi, Xiao-Ou Shu, Hui Cai, Atsushi Hozawa, Seiki Kanemura, Jeongseon Kim, Yu Chen, Hidemi Ito, Yumi Sugawara, Sue
Gastric Cancer.2024; 27(4): 701. CrossRef
Efficacy and safety of three-dimensional magnetically assisted capsule endoscopy for upper gastrointestinal and small bowel examination
Dong Jun Oh, Yea Je Lee, Sang Hoon Kim, Joowon Chung, Hyun Seok Lee, Ji Hyung Nam, Yun Jeong Lim, Thomas Lui Ka Luen
PLOS ONE.2024; 19(5): e0295774. CrossRef
A mathematical simulation model to determine the optimal endoscopic screening strategy for detection of H. pylori-naïve gastric neoplasms
Fumiaki Ishibashi, Kosuke Okusa, Yoshitaka Tokai, Toshiaki Hirasawa, Tomohiro Kawakami, Kentaro Mochida, Yuka Yanai, Chizu Yokoi, Yuko Hayashi, Shun-ichiro Ozawa, Koji Uraushihara, Yohei Minato, Hiroyuki Nakanishi, Hiroya Ueyama, Mikinori Kataoka, Yuzo To
Gastric Cancer.2024; 27(5): 1078. CrossRef
Association between gastrectomy and the risk of type 2 diabetes in gastric cancer survivors: A nationwide cohort study
Gyuri Kim, Kyung-do Han, So Hyun Cho, Rosa Oh, You-Bin Lee, Sang-Man Jin, Kyu Yeon Hur, Jae Hyeon Kim
Diabetes & Metabolism.2024; 50(5): 101569. CrossRef
Nationwide Trends in Helicobacter pylori Eradication Therapies in Korea: Impact of Guideline Updates on Treatment Practices
Byung Wook Jung, Yun Jin Kim, Chan Hyuk Park
Helicobacter.2024;[Epub] CrossRef
Estimating Age-Specific Mean Sojourn Time of Breast Cancer and Sensitivity of Mammographic Screening by Breast Density among Korean Women
Eunji Choi, Mina Suh, So-Youn Jung, Kyu-Won Jung, Sohee Park, Jae Kwan Jun, Kui Son Choi
Cancer Research and Treatment.2023; 55(1): 136. CrossRef
Early Gastric Cancer: Update on Prevention, Diagnosis and Treatment
Clara Benedetta Conti, Stefano Agnesi, Miki Scaravaglio, Pietro Masseria, Marco Emilio Dinelli, Massimo Oldani, Fabio Uggeri
International Journal of Environmental Research and Public Health.2023; 20(3): 2149. CrossRef
Korean Practice Guidelines for Gastric Cancer 2022: An Evidence-based, Multidisciplinary Approach
Tae-Han Kim, In-Ho Kim, Seung Joo Kang, Miyoung Choi, Baek-Hui Kim, Bang Wool Eom, Bum Jun Kim, Byung-Hoon Min, Chang In Choi, Cheol Min Shin, Chung Hyun Tae, Chung sik Gong, Dong Jin Kim, Arthur Eung-Hyuck Cho, Eun Jeong Gong, Geum Jong Song, Hyeon-Su Im
Journal of Gastric Cancer.2023; 23(1): 3. CrossRef
Risk of upper gastrointestinal cancer and death in persons with negative screening results: results from the National Cancer Screening Program in South Korea
Xuan Quy Luu, Kyeongmin Lee, Jae Kwan Jun, Mina Suh, Kyu-Won Jung, Il Ju Choi, Kui Son Choi
Gastric Cancer.2023; 26(4): 580. CrossRef
Descriptive Analysis of Gastric Cancer Mortality in Korea, 2000-2020
Tung Hoang, Hyeongtaek Woo, Sooyoung Cho, Jeeyoo Lee, Sayada Zartasha Kazmi, Aesun Shin
Cancer Research and Treatment.2023; 55(2): 603. CrossRef
Helicobacter pylori infection
Peter Malfertheiner, M. Constanza Camargo, Emad El-Omar, Jyh-Ming Liou, Richard Peek, Christian Schulz, Stella I. Smith, Sebastian Suerbaum
Nature Reviews Disease Primers.2023;[Epub] CrossRef
A 6-year nationwide population-based study on the current status of gastric endoscopic resection in Korea using administrative data
Jae Yong Park, Mi-Sook Kim, Beom Jin Kim, Jae Gyu Kim
Scientific Reports.2023;[Epub] CrossRef
How to Improve the Efficacy of Gastric Cancer Screening?
Wladyslaw Januszewicz, Maryla Helena Turkot, Jaroslaw Regula
Current Treatment Options in Gastroenterology.2023; 21(3): 241. CrossRef
Effect of gastric cancer screening on long-term survival of gastric cancer patients: results of Korean national cancer screening program
Xuan Quy Luu, Kyeongmin Lee, Jae Kwan Jun, Mina Suh, Kyu-Won Jung, Kui Son Choi
Journal of Gastroenterology.2022; 57(7): 464. CrossRef
Endoscopic Treatment of Superficial Gastric Cancer: Present Status and Future
Hiroyuki Hisada, Yoshiki Sakaguchi, Kaori Oshio, Satoru Mizutani, Hideki Nakagawa, Junichi Sato, Dai Kubota, Miho Obata, Rina Cho, Sayaka Nagao, Yuko Miura, Hiroya Mizutani, Daisuke Ohki, Seiichi Yakabi, Yu Takahashi, Naomi Kakushima, Yosuke Tsuji, Nobuta
Current Oncology.2022; 29(7): 4678. CrossRef
Impact of the COVID-19 Pandemic on Gastric Cancer Screening in South Korea: Results From the Korean National Cancer Screening Survey (2017–2021)
Kyeongmin Lee, Mina Suh, Jae Kwan Jun, Kui Son Choi
Journal of Gastric Cancer.2022; 22(4): 297. CrossRef
Status of Endoscopic Screening Strategies for Upper Gastrointestinal Tract Cancer
Bin Lyu, Xiao-Liang Jin
Cancer Screening and Prevention.2022; 000(000): 000. CrossRef

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Association between the Persistence of Obesity and the Risk of Gastric Cancer: A Nationwide Population-Based Study: Joo Hyun Lim, Cheol Min Shin, Kyung-Do Han, Seung Woo Lee, Eun Hyo Jin, Yoon Jin Choi, Hyuk Yoon, Young Soo Park, Nayoung Kim, Dong Ho Lee; Cancer Res Treat. 2022;54(1):199-207. Published online May 4, 2021; DOI: https://doi.org/10.4143/crt.2021.130

Abstract PDF Supplementary Material PubReader ePub

Purpose
There remains controversy about relationship between obesity and gastric cancer. We aimed to examine the association using obesity-persistence.
Materials and Methods
We analyzed a nationwide population-based cohort which underwent health check-up between 2009 and 2012. Among them, those who had annual examinations during the last 5 years were selected. Gastric cancer risk was compared between those without obesity during the 5 years (never-obesity group) and those with obesity diagnosis during the 5 years (non-persistent obesity group; persistent obesity group).
Results
Among 2,757,017 individuals, 13,441 developed gastric cancer after median 6.78 years of follow-up. Gastric cancer risk was the highest in persistent obesity group (incidence rate [IR], 0.89/1,000 person-years; hazard ratio [HR], 1.197; 95% confidence interval [CI], 1.117 to 1.284), followed by non-persistent obesity group (IR, 0.83/1,000 person-years; HR, 1.113; 95% CI, 1.056 to 1.172) compared with never-obesity group. In subgroup analysis, this positive relationship was true among those < 65 years old and male. Among heavy-drinkers, the impact of obesity-persistence on the gastric cancer risk far increased (non-persistent obesity: HR, 1.297; 95% CI, 1.094 to 1.538; persistent obesity: HR, 1.351; 95% CI, 1.076 to 1.698).
Conclusion
Obesity-persistence is associated with increased risk of gastric cancer in a dose-response manner, especially among male < 65 years old. The risk raising effect was much stronger among heavy-drinkers.

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Diagnosis of gastric cancer in role of endoscopic imaging techniques in artificial intelligence and machine learning applications: An overview
Pooja K., Kishore Kanna R., G. Li, U. Subramaniam, M. Sekar
E3S Web of Conferences.2024; 491: 03016. CrossRef
Joint association of drinking alcohol and obesity in relation to cancer risk: A systematic review and data synthesis
Graeme A. Macdonald, James A. Thomas, Christine Dalais, Bradley J. Kendall, Aaron P. Thrift
Cancer Epidemiology.2024; 91: 102596. CrossRef
Roles of long non‑coding RNA SNHG16 in human digestive system cancer (Review)
Lujie Zhao, Yuling Kan, Lu Wang, Jiquan Pan, Yun Li, Haiyan Zhu, Zhongfa Yang, Lin Xiao, Xinhua Fu, Fujun Peng, Haipeng Ren
Oncology Reports.2024;[Epub] CrossRef
Gastric Cancer Risk in Association with Underweight, Overweight, and Obesity: A Systematic Review and Meta-Analysis
Narges Azizi, Moein Zangiabadian, Golnoosh Seifi, Afshan Davari, Elham Yekekhani, Seyed Amir Ahmad Safavi-Naini, Nathan A. Berger, Mohammad Javad Nasiri, Mohammad-Reza Sohrabi
Cancers.2023; 15(10): 2778. CrossRef
Recent research progress on the correlation between metabolic syndrome and Helicobacter pylori infection
Qinli Xie, Yangjun He, Danni Zhou, Yi Jiang, Ying Deng, Ruoqing Li
PeerJ.2023; 11: e15755. CrossRef
Risk of gastric cancer in relation with serum cholesterol profiles: A nationwide population-based cohort study
Mi Jin Oh, Kyungdo Han, Bongseong Kim, Joo Hyun Lim, Bokyung Kim, Sang Gyun Kim, Soo-Jeong Cho
Medicine.2023; 102(48): e36260. CrossRef
Decreasing Incidence of Gastric Cancer with Increasing Time after Helicobacter pylori Treatment: A Nationwide Population-Based Cohort Study
Taewan Kim, Seung In Seo, Kyung Joo Lee, Chan Hyuk Park, Tae Jun Kim, Jinseob Kim, Woon Geon Shin
Antibiotics.2022; 11(8): 1052. CrossRef
Integration of clinical and transcriptomics reveals programming of the lipid metabolism in gastric cancer
Yanyan Li, Jungang Zhao, Renpin Chen, Shengwei Chen, Yilun Xu, Weiyang Cai
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Body fatness associations with cancer: evidence from recent epidemiological studies and future directions
Susanna C. Larsson, Nikolaos Spyrou, Christos S. Mantzoros
Metabolism.2022; 137: 155326. CrossRef
FOXC2-AS1 stabilizes FOXC2 mRNA via association with NSUN2 in gastric cancer cells
Jijun Yan, Juntao Liu, Zhengbin Huang, Wenwei Huang, Jianfa Lv
Human Cell.2021; 34(6): 1755. CrossRef

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Gastrointestinal Cancer

Effect of Preoperative Tumor Under-Staging on the Long-term Survival of Patients Undergoing Radical Gastrectomy for Gastric Cancer: Mi Lin, Qi-Yue Chen, Chao-Hui Zheng, Ping Li, Jian-Wei Xie, Jia-Bin Wang, Jian-Xian Lin, Chang-Ming Huang; Cancer Res Treat. 2021;53(4):1123-1133. Published online March 5, 2021; DOI: https://doi.org/10.4143/crt.2020.651

Abstract PDF Supplementary Material PubReader ePub

Purpose
This study aimed to evaluate the effect of preoperative tumor staging deviation (PTSD) on the long-term survival of patients undergoing radical gastrectomy for gastric cancer (RGGC).
Materials and Methods
Clinicopathological data of 2,346 patients who underwent RGGC were retrospectively analyzed. The preoperative tumor-lymph node-metastasis (TNM) under-staging group (uTNM) comprised patients who had earlier preoperative TNM than postoperative TNM, and the no preoperative under-staging group (nTNM) comprised the remaining patients.
Results
There were 1,031 uTNM (44.0%) and 1,315 nTNM cases (56.0%). Cox prognostic analysis revealed that PTSD independently affected the overall survival (OS) after surgery. The 5-year OS was lower in the uTNM group (41.8%) than in the nTNM group (71.6%). The patients less than 65 years old, with lower American Society of Anaesthesiologists score, 2-5 cm tumor located at the lower stomach, and cT1 or cN0 preoperative staging would more likely undergo D1+ lymph node dissection (LND) in uTNM (p < 0.05). Logistic analyses revealed that tumor size > 2 cm and body mass index ≤ 22.72 kg/m2 were independent risk factors of preoperative TNM tumor under-staging in patients with cT1N0M0 staging (p < 0.05).
Conclusion
Underestimated tumor staging is not rare, which possibly results in inadequate LND and affects the long-term survival for patients undergoing RGGC. D2 LND should be carefully performed in patients who are predisposed to this underestimation.

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Preoperative prediction of gastric cancer T-staging based on ordinal regression models
O. V. Krasko, M. Yu. Reutovich, A. L. Patseika
Informatics.2024; 21(2): 36. CrossRef
rhG-CSF is associated with an increased risk of metastasis in NSCLC patients following postoperative chemotherapy
Yong Wang, Chen Fang, Renfang Chen, Shangkun Yuan, Lin Chen, Xiaotong Qiu, Xiaoying Qian, Xinwei Zhang, Zhehao Xiao, Qian Wang, Biqi Fu, Xiaoling Song, Yong Li
BMC Cancer.2022;[Epub] CrossRef
Factors of Organizing Surgical Treatment of Upper Gastrointestinal Cancers and Patient Survival: Real-World Data
D. A. Andreev, A. A. Zavyalov
Russian Journal of Gastroenterology, Hepatology, Coloproctology.2022; 32(6): 20. CrossRef

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Development and Validation of a Symptom-Focused Quality of Life Questionnaire (KOQUSS-40) for Gastric Cancer Patients after Gastrectomy: Bang Wool Eom, Joongyub Lee, In Seob Lee, Young-Gil Son, Keun Won Ryu, Sung Geun Kim, Hyoung-Il Kim, Young-Woo Kim, Seong-Ho Kong, Oh Kyoung Kwon, Ji-Ho Park, Ji Yeong An, Chang Hyun Kim, Byoung-Jo Suh, Hong Man Yoon, Myoung Won Son, Ji Yeon Park, Jong-Min Park, Sang-Ho Jeong, Moon-Won Yoo, Geum Jong Song, Han-Kwang Yang, Yun-Suhk Suh, Ki Bum Park, Sang-Hoon Ahn, Dong Woo Shin, Ye Seob Jee, Hye-Seong Ahn, Sol Lee, Jae Seok Min, Haejin In, Ahyoung Kim, Hoon Hur, Hyuk-Joon Lee, on behalf of KOrean QUality of life in Stomach cancer patients Study group (KOQUSS); Cancer Res Treat. 2021;53(3):763-772. Published online December 29, 2020; DOI: https://doi.org/10.4143/crt.2020.1270

Abstract PDF Supplementary Material PubReader ePub

Purpose
Patients who have undergone gastrectomy have unique symptoms that are not appropriately assessed using currently available tools. This study developed and validated a symptom-focused quality of life (QoL) questionnaire for patients who have received gastrectomy for gastric cancer. Materials and Methods Based on a literature review, patient interviews, and expert consultation by the KOrean QUality of life in Stomach cancer patients Study group (KOQUSS), the initial item pool was developed. Two large-scale developmental studies were then sequentially conducted for exploratory factor analyses for content validity and item reduction. The final item pool was validated in a separate cohort of patients and assessed for internal consistency, test-retest reliability, construct validity, and clinical validity.
Results
The initial questionnaire consisted of 46-items in 12 domains. Data from 465 patients at 11 institutions, followed by 499 patients at 13 institutions, were used to conduct item reduction and exploratory factor analyses. The final questionnaire (KOQUSS-40) comprised 40 items within 11 domains. Validation of KOQUSS-40 was conducted on 413 patients from 12 hospitals. KOQUSS-40 was found to have good model fit. The mean summary score of the KOQUSS-40 was correlated with the EORTC QLQ-C30 and STO22 (correlation coefficients, 0.821 and 0.778, respectively). The KOQUSS-40 score was also correlated with clinical factors, and had acceptable internal consistency (> 0.7). Test-retest reliability was greater than 0.8. Conclusion The KOQUSS-40 can be used to assess QoL of gastric cancer patients after gastrectomy and allows for a robust comparison of surgical techniques in clinical trials.

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Global status of research on gastrointestinal cancer patients’ quality of life: A bibliometric and visual analysis from 2003 to 2023
Xiaoqin Wang, Caihua Wang, Wenjin Han, Jiaru Sun, Zhaozhao Hui, Shuangyan Lei, Huili Wu, Xiaohong Liu
Heliyon.2024; 10(1): e23377. CrossRef
Development and Feasibility Assessment of Mobile Application-Based Digital Therapeutics for Postoperative Supportive Care in Gastric Cancer Patients Following Gastrectomy
Ji-Hyeon Park, Hyuk-Joon Lee, JeeSun Kim, Yo-Seok Cho, Sunjoo Lee, Seongmin Park, Hwinyeong Choe, Eunhwa Song, Youngran Kim, Seong-Ho Kong, Do Joong Park, Byung-Ho Nam, Han-Kwang Yang
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Koji Nakada, Akitoshi Kimura, Kazuhiro Yoshida, Nobue Futawatari, Kazunari Misawa, Kuniaki Aridome, Yoshiyuki Fujiwara, Kazuaki Tanabe, Hirofumi Kawakubo, Atsushi Oshio, Yasuhiro Kodera
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Jae Kyun Park, Hyuk-Joon Lee
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Sin Hye Park, Hong Man Yoon, Keun Won Ryu, Young-Woo Kim, Mira Han, Bang Wool Eom
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Population Attributable Fraction of Helicobacter pylori Infection–Related Gastric Cancer in Korea: A Meta-Analysis: Yoon Park, Moran Ki; Cancer Res Treat. 2021;53(3):744-753. Published online December 15, 2020; DOI: https://doi.org/10.4143/crt.2020.610

Abstract PDF Supplementary Material PubReader ePub

Purpose
This study aimed to determine the proportion of gastric cancer attributable to Helicobactor pylori in the Korean population. Infection with H. pylori has been recognized as the most significant risk factor for gastric cancer. In Korea, gastric cancer is the most common cancer that accounted for 13.3% of all cancers in 2016. In particular, men are most commonly diagnosed with gastric cancer; the age-standardized incidence rate in men is 49.6 per 100,000, which is more than twice the incidence in women.
Materials and Methods
The population attributable fraction (PAF) was calculated as a function of the relative risk (RR) of gastric cancer associated with H. pylori infections. To estimate PAF of gastric cancer due to H. pylori, the prevalence of H. pylori infections was extrapolated for the year of 1990 and a pooled RR was obtained by conducting a meta-analysis of studies recently published in Korea.
Results
The estimated prevalence of H. pylori was 76.4% in men and 71.9% in women. The RRs (95% confidence interval) pooled from case-control studies using a random effects model was 1.69 (1.29-2.22) for overall gastric cancer and 2.17 (1.04-4.55) for non-cardia gastric cancer. Using the RR for overall gastric cancer, the estimated PAFs due to H. pylori were 34.5% in men and 33.2% in women.
Conclusion
The occurrence of gastric cancer in Koreans may be affected by other risk factors in addition to H. pylori infection, which may contribute to increasing baseline risk for gastric cancer.

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Zhongxue Han, Jing Liu, Wenlin Zhang, Qingzhou Kong, Meng Wan, Minjuan Lin, Boshen Lin, Yuming Ding, Miao Duan, Yueyue Li, Xiuli Zuo, Yanqing Li
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Gastrointestinal cancer

Associations of Serum Lipid Level with Gastric Cancer Risk, Pathology, and Prognosis: Gyu Young Pih, Eun Jeong Gong, Ji Young Choi, Min-Ju Kim, Ji Yong Ahn, Jaewon Choe, Suh Eun Bae, Hye-Sook Chang, Hee Kyong Na, Jeong Hoon Lee, Kee Wook Jung, Do Hoon Kim, Kee Don Choi, Ho June Song, Gin Hyug Lee, Hwoon-Yong Jung; Cancer Res Treat. 2021;53(2):445-456. Published online November 23, 2020; DOI: https://doi.org/10.4143/crt.2020.599

Abstract PDF PubReader ePub

Purpose
The association of serum lipids with gastric cancer is controversial. We clarified the role of serum lipids in the development, progression, and prognosis of gastric cancer.
Materials and Methods
In total, 412 patients diagnosed with gastric cancer were prospectively recruited, and 2,934 control subjects who underwent screening endoscopy were enrolled from December 2013 to March 2017 to conduct a case-control study in a tertiary center. Serum lipid profiles, including total cholesterol, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglyceride (TG), apolipoprotein A-I (apoA-I), and apolipoprotein B, and clinicopathologic characteristics were analyzed.
Results
The gastric cancer group showed significantly lower HDL-C, higher LDL-C, and lower apoA-I level than the control group. In multivariate analysis, old age (odds ratio [OR], 1.051; p < 0.001), smoking (OR, 1.337; p < 0.001), a family history of gastric cancer (OR, 2.038; p < 0.001), Helicobacter pylori seropositivity (OR, 4.240; p < 0.001), lower HDL-C (OR, 0.712; p=0.020), and higher LDL-C (p=0.002) were significant risk factors for gastric cancer. Lower HDL-C and higher LDL-C remained significant after adjustments for covariates, including age and sex. In a subgroup analysis of the gastric cancer group, lower TG levels were associated with undifferentiated histology. No serum lipids were associated with overall survival.
Conclusion
Lower HDL-C and higher LDL-C were associated with the risk of gastric cancer, even after adjusting for age, sex, and other factors. In the gastric cancer group, undifferentiated histology was associated with lower TG levels.

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General

Trends in Cancer Screening Rates among Korean Men and Women: Results of the Korean National Cancer Screening Survey, 2004–2018: Seri Hong, Yun Yeong Lee, Jaeho Lee, Yeol Kim, Kui Son Choi, Jae Kwan Jun, Mina Suh; Cancer Res Treat. 2021;53(2):330-338. Published online October 20, 2020; DOI: https://doi.org/10.4143/crt.2020.263

Abstract PDF Supplementary Material PubReader ePub

Purpose
The Korean National Cancer Screening Survey (KNCSS) is a nationwide annual cross-sectional survey conducted for the past 15 years. This study aimed to report trends in the overall screening rates of both organized and opportunistic cancer screening programs from 2004–2018.
Materials and Methods
KNCSS data were collected using a structured questionnaire. For five major cancers (i.e., stomach, liver, colorectal, breast, and cervical cancer), we evaluated both the lifetime screening rate and the screening rate with recommendations. The study population included men aged 40–74 years and women aged 20–74 years with no cancer histories.
Results
Screening rate with recommendations increased from 2004 annually by 4.4% and 1.5% until 2013 for stomach and liver cancers, respectively, by 4.0% until 2012 for breast cancer, and by 3.6% and 1.2% until 2014 for colorectal and cervical cancers, respectively, followed by nonsignificant trends thereafter. In 2018, screening rates with recommendations for these cancers were 72.8%, 26.2%, 63.1%, 58.4%, and 55.6%, respectively.
Conclusion
Screening rates for the five types of cancer demonstrated a marked increase between 2004 and 2018. However, many recent screening rates have been flattened with nonsignificant trends, and there are lower rates for cervical cancer screening among young age groups. Steady efforts are needed to achieve higher screening participation rates overall, especially for the cervical cancer screening of young women in their 20s.

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Young-Il Kim, Il Ju Choi
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Gastrointestinal cancer

Trends in Chemotherapy Patterns and Survival of Patients with Advanced Gastric Cancer over a 16-Year Period: Impact of Anti-HER2–Targeted Agent in the Real-World Setting: Dong-Hoe Koo, Min-Hee Ryu, Mi-Yeon Lee, Heejung Chae, Eo Jin Kim, Mee-Sun Moon, Yoon-Koo Kang; Cancer Res Treat. 2021;53(2):436-444. Published online October 6, 2020; DOI: https://doi.org/10.4143/crt.2020.725

Abstract PDF Supplementary Material PubReader ePub

Purpose
This study aimed to evaluate the survivals of patients with metastatic or recurrent gastric cancer (MRGC) over a period of 16 years and to investigate the recent changes in chemotherapy patterns.
Materials and Methods
A total of 5,384 patients who received chemotherapy for MRGC between 2000 and 2015 were analyzed. The analysis focused on a comparison of the first-line chemotherapy between four periods: 2000–2003 (period 1), 2004–2007 (period 2), 2008–2011 (period 3), and 2012–2015 (period 4).
Results
There were 880 patients (16%) in period 1, 1,573 (29%) in period 2, 1,435 (27%) in period 3, and 1,496 (28%) in period 4. Cytotoxic doublet-based therapy was the most commonly used (78%) first-line chemotherapy, and the combination of trastuzumab and doublet chemotherapy was provided to 288 patients. The OS rates at 12 and 24 months were steadily improved as follows: 39.2% and 14.6% in period 1, 43.5% and 17.6% in period 2, 50.3% and 20.6% in period 3, and 51.7% and 24.1% in period 4, respectively (p < 0.001). Among the patients who received the doublet-based chemotherapy, the median OS of those who received trastuzumab was 18.0 months (95% CI, 15.5–20.6), while that of those who received other doublet therapies was 11.2 months (95% CI, 10.8–11.6).
Conclusion
The OS was improved over time with advancements in chemotherapy, particularly the introduction of the anti-HER2–targeted agent, which contributed to the increase in the number of long-term survivors and established the superiority of OS for the treatment of MRGC.

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Factors associated with the efficacy of first-line nivolumab plus chemotherapy in advanced gastric cancer patients with deficient mismatch repair
Young-Gyu Park, Hyung-Don Kim, Jaewon Hyung, Young Soo Park, Min-Hee Ryu
Gastric Cancer.2024; 27(4): 840. CrossRef
Varlitinib and Paclitaxel for EGFR/HER2 Co-expressing Advanced Gastric Cancer: A Multicenter Phase Ib/II Study (K-MASTER-13)
Dong-Hoe Koo, Minkyu Jung, Yeul Hong Kim, Hei-Cheul Jeung, Dae Young Zang, Woo Kyun Bae, Hyunki Kim, Hyo Song Kim, Choong-kun Lee, Woo Sun Kwon, Hyun Cheol Chung, Sun Young Rha
Cancer Research and Treatment.2024; 56(4): 1136. CrossRef
Breakthroughs in the Systemic Treatment of HER2-Positive Advanced/Metastatic Gastric Cancer: From Singlet Chemotherapy to Triple Combination
Sun Young Rha, Hyun Cheol Chung
Journal of Gastric Cancer.2023;[Epub] CrossRef
Association between HER2 heterogeneity and clinical outcomes of HER2-positive gastric cancer patients treated with trastuzumab
Kyunghye Bang, Jaekyung Cheon, Young Soo Park, Hyung-Don Kim, Min-Hee Ryu, Yangsoon Park, Meesun Moon, Hyungeun Lee, Yoon-Koo Kang
Gastric Cancer.2022; 25(4): 794. CrossRef
Clinicopathological features and CT findings of papillary gastric adenocarcinoma
Mengying Xu, Song Liu, Xiangmei Qiao, Lin Li, Changfeng Ji, Zhengyang Zhou
Abdominal Radiology.2022; 47(11): 3698. CrossRef
New prognostic model for patients with advanced gastric cancer: Fluoropyrimidine/platinum doublet for first-line chemotherapy
Dong-Hoe Koo, Min-Hee Ryu, Mi-Yeon Lee, Mee-Sun Moon, Yoon-Koo Kang
World Journal of Gastroenterology.2021; 27(48): 8357. CrossRef

6,324 View
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6 Crossref

Prognostic Value of Serum Soluble Programmed Death-Ligand 1 and Dynamics During Chemotherapy in Advanced Gastric Cancer Patients: Woochan Park, Ju-Hee Bang, Ah-Rong Nam, Mei Hua Jin, Hyerim Seo, Jae-Min Kim, Kyoung Seok Oh, Tae-Yong Kim, Do-Youn Oh; Cancer Res Treat. 2021;53(1):199-206. Published online October 6, 2020; DOI: https://doi.org/10.4143/crt.2020.497

Abstract PDF Supplementary Material PubReader ePub

Purpose
The soluble form programmed death-ligand 1 (sPDL1) has immunosuppressive properties and is being studied as a candidate biomarker for immuno-oncology drug development. We measured the serum sPDL1 at pre-and post-chemotherapy and evaluated its prognostic implication and dynamics during chemotherapy in advanced gastric cancer (GC).
Materials and Methods
We prospectively enrolled 68 GC patients who were candidates for palliative standard first-line chemotherapy, and serially collected blood at baseline and after one cycle of chemotherapy, at the best response and after disease progression. sPDL1 was measured using an enzyme-linked immunosorbent assay. Response to chemotherapy, overall survival (OS), progressionfree survival (PFS) and other prognostic factors including neutrophil-lymphocyte ratio (NLR) were obtained. The cut-off value of sPDL1 levels for survival analysis was found using C-statistics.
Results
The median baseline sPDL1 was 0.8 ng/mL (range, 0.06 to 6.06 ng/mL). The median OS and PFS were 14.9 months and 8.0 months, respectively. sPDL1 and NLR showed a weak positive correlation (Spearman’s rho=0.301, p=0.013). Patients with low levels of sPDL1 at diagnosis (< 1.92 ng/mL) showed a better OS and PFS than patients with a high sPDL1. The baseline sPDL1 before treatment was higher in the progressive disease group than in the stable disease and partial response groups. Patients whose sPDL1 increased after the first cycle of chemotherapy showed worse PFS and OS. Following disease progression, sPDL1 increased compared with the baseline.
Conclusion
sPDL1 at prechemotherapy confers a prognostic value for PFS and OS in GC patients under palliative first-line chemotherapy. Dynamics of sPDL1 during chemotherapy correlates with disease progression.

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Laccase-inspired bi-amino acid MOFs with high substrate affinity: Catalytic deposition induced “signal-down” electrochemical response towards PD-L1
Ruhui Hu, Suyun Zhong, Hezhen Liu, Yawen Liu, Hongxia Chen, Xiaojun Hu
Sensors and Actuators B: Chemical.2024; 399: 134773. CrossRef
Prognostic significance of soluble PD-L1 in prostate cancer
Margarita Zvirble, Zilvinas Survila, Paulius Bosas, Neringa Dobrovolskiene, Agata Mlynska, Gintaras Zaleskis, Jurgita Jursenaite, Dainius Characiejus, Vita Pasukoniene
Frontiers in Immunology.2024;[Epub] CrossRef
CRP and soluble CTLA4 are determinants of anti-PD1 resistance in gastrointestinal cancer
Kotoe Oshima
American Journal of Cancer Research.2024; 14(3): 1174. CrossRef
Soluble immune checkpoint molecules in cancer risk, outcomes prediction, and therapeutic applications
Lin Chen, Yuqing Chao, Wenjing Li, Zhixia Wu, Qinchuan Wang
Biomarker Research.2024;[Epub] CrossRef
Myeloid subsets impede the efficacy of anti-PD1 therapy in patients with advanced gastric cancer (WJOG10417GTR study)
Hirokazu Shoji, Chie Kudo-Saito, Kengo Nagashima, Hiroshi Imazeki, Kai Tsugaru, Naoki Takahashi, Takeshi Kawakami, Yusuke Amanuma, Takeru Wakatsuki, Naohiro Okano, Yukiya Narita, Yoshiyuki Yamamoto, Rika Kizawa, Kei Muro, Kazunori Aoki, Narikazu Boku
Journal for ImmunoTherapy of Cancer.2024; 12(11): e010174. CrossRef
Prognostic value of tumor mutation burden in patients with advanced gastric cancer receiving first-line chemotherapy
Xiao-Peng Duan, Ke Liu, Xiao-Dong Jiao, Bao-Dong Qin, Bing Li, Xi He, Yan Ling, Ying Wu, Shi-Qi Chen, Yuan-Sheng Zang
Frontiers in Oncology.2023;[Epub] CrossRef
Prognostic value of soluble PD-L1 and exosomal PD-L1 in advanced gastric cancer patients receiving systemic chemotherapy
Kabsoo Shin, Joori Kim, Se Jun Park, Myung Ah Lee, Jae Myung Park, Myung-Gyu Choi, Donghoon Kang, Kyo Young Song, Han Hong Lee, Ho Seok Seo, Sung Hak Lee, Bohyun Kim, Okran Kim, Juyeon Park, Nahyeon Kang, In-Ho Kim
Scientific Reports.2023;[Epub] CrossRef
Site-specific protein biomarkers in gastric cancer: a comprehensive review of novel biomarkers and clinical applications
Takahiro Shinozuka, Mitsuro Kanda, Yasuhiro Kodera
Expert Review of Molecular Diagnostics.2023; 23(8): 701. CrossRef
The predictive role of soluble programmed death ligand 1 in digestive system cancers
Jian Ruan, Zhihong Zhao, Yuting Qian, Ruilian Xu, Guixiang Liao, Feng-Ming (Spring) Kong
Frontiers in Oncology.2023;[Epub] CrossRef
Does Elevated Pre-Treatment Plasma PD-L1 Level Indicate an Increased Tumor Burden and Worse Prognosis in Metastatic Colorectal Cancer?
Magdolna Dank, Dorottya Mühl, Magdolna Herold, Lilla Hornyák, Attila Marcell Szasz, Zoltan Herold
Journal of Clinical Medicine.2022; 11(16): 4815. CrossRef
How to Best Exploit Immunotherapeutics in Advanced Gastric Cancer: Between Biomarkers and Novel Cell-Based Approaches
Michele Ghidini, Angelica Petrillo, Andrea Botticelli, Dario Trapani, Alessandro Parisi, Anna La Salvia, Elham Sajjadi, Roberto Piciotti, Nicola Fusco, Shelize Khakoo
Journal of Clinical Medicine.2021; 10(7): 1412. CrossRef

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An Innovative Prognostic Model Based on Four Genes in Asian Patient with Gastric Cancer: Jiahui Chen, Anqiang Wang, Jun Ji, Kai Zhou, Zhaode Bu, Guoqing Lyu, Jiafu Ji; Cancer Res Treat. 2021;53(1):148-161. Published online August 31, 2020; DOI: https://doi.org/10.4143/crt.2020.424

Abstract PDF Supplementary Material PubReader ePub

Purpose
Gastric cancer (GC) has substantial biological differences between Asian and non-Asian populations, which makes it difficult to have a unified predictive measure for all people. We aimed to identify novel prognostic biomarkers to help predict the prognosis of Asian GC patients.
Materials and Methods
We investigated the differential gene expression between GC and normal tissues of GSE66229. Univariate, multivariate and Lasso Cox regression analyses were conducted to establish a four-gene-related prognostic model based on the risk score. The risk score was based on a linear combination of the expression levels of individual genes multiplied by their multivariate Cox regression coefficients. Validation of the prognostic model was conducted using The Cancer Genome Atlas (TCGA) database. A nomogram containing clinical characteristics and the prognostic model was established to predict the prognosis of Asian GC patients.
Results
Four genes (RBPMS2, RGN, PLEKHS1, and CT83) were selected to establish the prognostic model, and it was validated in the TCGA Asian cohort. Receiver operating characteristic analysis confirmed the sensitivity and specificity of the prognostic model. Based on the prognostic model, a nomogram containing clinical characteristics and the prognostic model was established, and Harrell’s concordance index of the nomogram for evaluating the overall survival significantly higher than the model only focuses on the pathologic stage (0.74 vs. 0.64, p < 0.001).
Conclusion
The four-gene-related prognostic model and the nomogram based on it are reliable tools for predicting the overall survival of Asian GC patients.

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Nivolumab plus anlotinib hydrochloride in advanced gastric adenocarcinoma and esophageal squamous cell carcinoma: the phase II OASIS trial
Jing Wu, Shilong Zhang, Shan Yu, Guo An, Yi Wang, Yiyi Yu, Li Liang, Yan Wang, Xiaojing Xu, YanShi Xiong, Di Shao, Zhun Shi, Nannan Li, Jingyuan Wang, Dawei Jin, Tianshu Liu, Yuehong Cui
Nature Communications.2024;[Epub] CrossRef
An integrated analysis of prognostic mRNA signature in early- and progressive-stage gastric adenocarcinoma
Xiaoling Hong, Kai Zhuang, Na Xu, Jiang Wang, Yong Liu, Siqi Tang, Junzhang Zhao, Zunnan Huang
Frontiers in Molecular Biosciences.2023;[Epub] CrossRef
Analysis and application of RNA binding protein gene pairs to predict the prognosis of gastric cancer
Zhi-kun Ning, Hua-kai Tian, Jiang Liu, Ce-gui Hu, Zi-tao Liu, Hui Li, Zhen Zong
Heliyon.2023; 9(7): e18242. CrossRef
PLEKHS1 drives PI3Ks and remodels pathway homeostasis in PTEN-null prostate
Tamara A.M. Chessa, Piotr Jung, Arqum Anwar, Sabine Suire, Karen E. Anderson, David Barneda, Anna Kielkowska, Barzan A. Sadiq, Ieng Wai Lai, Sergio Felisbino, Daniel J. Turnham, Helen B. Pearson, Wayne A. Phillips, Junko Sasaki, Takehiko Sasaki, David Oxl
Molecular Cell.2023; 83(16): 2991. CrossRef
Evaluation of vital genes correlated with CD8 + T cell infiltration as prognostic biomarkers in stomach adenocarcinoma
Dun Pan, Hui Chen, Jiaxiang Xu, Xin Lin, Liangqing Li
BMC Gastroenterology.2023;[Epub] CrossRef
Bayesian hierarchical lasso Cox model: A 9-gene prognostic signature for overall survival in gastric cancer in an Asian population
Jiadong Chu, Na Sun, Wei Hu, Xuanli Chen, Nengjun Yi, Yueping Shen, Andy T. Y. Lau
PLOS ONE.2022; 17(4): e0266805. CrossRef
Three Prognostic Biomarkers Correlate with Immune Checkpoint Blockade Response in Bladder Urothelial Carcinoma
Ya Guo, Yin Bin Zhang, Yi Li, Wang Hui Su, Shan He, Shu Pei Pan, Kun Xu, Wei Hua Kou, Luca Falzone
International Journal of Genomics.2022; 2022: 1. CrossRef
KK-LC-1 may be an effective prognostic biomarker for gastric cancer
Jun Ji, Jiahui Chen, Anqiang Wang, Wei Zhang, Hongge Ju, Yang Liu, Leping Li
BMC Cancer.2021;[Epub] CrossRef
Multiomics analysis reveals CT83 is the most specific gene for triple negative breast cancer and its hypomethylation is oncogenic in breast cancer
Chen Chen, Dan Gao, Jinlong Huo, Rui Qu, Youming Guo, Xiaochi Hu, Libo Luo
Scientific Reports.2021;[Epub] CrossRef
Integrative analysis-based identification and validation of a prognostic immune cell infiltration-based model for patients with advanced gastric cancer
Siwei Pan, Qi Gao, Qingchuan Chen, Pengfei Liu, Yuen Tan, Funan Liu, Huimian Xu
International Immunopharmacology.2021; 101: 108258. CrossRef

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Evaluation and Comparison of Predictive Value of Tumor Regression Grades according to Mandard and Becker in Locally Advanced Gastric Adenocarcinoma: Yilin Tong, Yanmei Zhu, Yan Zhao, Zexing Shan, Dong Liu, Jianjun Zhang; Cancer Res Treat. 2021;53(1):112-122. Published online August 10, 2020; DOI: https://doi.org/10.4143/crt.2020.516

Abstract PDF Supplementary Material PubReader ePub

Purpose
Tumor regression grade (TRG) has been widely used in gastrointestinal carcinoma to assess pathological responses to neoadjuvant chemotherapy (NCT). There are various standards without a consensus, and it is still unclear which kind of system has better predictive value. This study aims to investigate and compare the predictive ability of the Mandard and Becker TRGs in patients with locally advanced gastric cancer.
Materials and Methods
A total of 290 patients with locally advanced gastric adenocarcinoma who underwent NCT and curative surgery were studied. Survival analysis for overall survival (OS) and disease-free survival (DFS) were based on the Kaplan-Meier method and Cox proportional hazards method. Predictive values of TRGs and models were assessed by time-dependent receiver operating characteristic (ROC) curve, the area under the ROC curve (AUC), nomogram, and calibration curve.
Results
In multivariable analysis, the Mandard TRG was associated with OS (hazard ratio [HR], 1.806; p=0.026) and DFS (HR, 1.792; p=0.017). The Becker TRG was also related to OS (HR, 1.880; p=0.014) and DFS (HR, 1.919; p=0.006). The Mandard and Becker TRG AUCs for 5-year survival were 0.72 and 0.71, respectively. The whole models showed an increased predictive value, with AUCs of 0.85 and 0.86, respectively. There was no significant difference between the two TRGs and two models.
Conclusion
TRG was an independent predictor for survival, and there was no significant difference between these two systems.

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Alina Desiree Sandø, Reidun Fougner, Elin Synnøve Røyset, Hong Yan Dai, Jon Erik Grønbech, Erling Audun Bringeland
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Profiling complete regression after pre-operative therapy in gastric cancer patients using clinical and pathological data
Alberto Biondi, Laura Lorenzon, Gloria Santoro, Annamaria Agnes, Antonio Laurino, Roberto Persiani, Domenico D'Ugo
European Journal of Surgical Oncology.2023; 49(11): 106969. CrossRef
Concurrent clinical and pathological response predicts favorable prognosis of patients with gastric cancer after neoadjuvant therapy: a real-world study
Chongyuan Sun, Penghui Niu, Xiaojie Zhang, Lulu Zhao, Wanqing Wang, Xiaoyi Luan, Xue Han, Yingtai Chen, Dongbing Zhao
BMC Cancer.2023;[Epub] CrossRef
Sintilimab Plus Fluorouracil, Leucovorin, Oxaliplatin and Docetaxel Regimen as Neoadjuvant Therapy for Resectable Gastric Cancer and Biomarker Exploration
Jiangpeng Wei, Xin Guo, Xisheng Yang, Jinqiang Liu, Qianqian Duan, Yuan Tan, Qin Zhang, Tingting Sun, Chuang Qi, Xiaohua Li, Gang Ji
Future Oncology.2023; 19(36): 2395. CrossRef
Evaluation of dual-energy CT derived radiomics signatures in predicting outcomes in patients with advanced gastric cancer after neoadjuvant chemotherapy
Yong Chen, Fei Yuan, Lingyun Wang, Elsie Li, Zhihan Xu, Michael Wels, Weiwu Yao, Huan Zhang
European Journal of Surgical Oncology.2022; 48(2): 339. CrossRef
MORBIDITY AND SURVIVAL AFTER PERIOPERATIVE CHEMOTHERAPY IN GASTRIC CANCER: A STUDY USING THE BECKER’S CLASSIFICATION AND REGRESSION
Maria Cecília de Aguiar MACHADO, José Pedro Coimbra de Vargas Lobarinhas BARBOSA, Filipa Ferreira de OLIVEIRA, José Adelino Lobarinhas BARBOSA
ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo).2022;[Epub] CrossRef
Validating a nodal regression system for gastric cancer: An ancillary cohort study of the GASTRODOC trial
Luca Saragoni, Leonardo Solaini, Daniele Marrelli, Maria Raffaella Ambrosio, Maria Bencivenga, Anna Tomezzoli, Carlo Milandri, Valentina Terrinazzi, Gian Luca Baiocchi, Carla Baronchelli, Flavia Foca, Giorgio Ercolani, Paolo Morgagni
International Journal of Surgery.2021; 94: 106112. CrossRef
Comparison of tumor regression grading systems for locally advanced gastric adenocarcinoma after neoadjuvant chemotherapy
Zi-Ning Liu, Yin-Kui Wang, Li Zhang, Yong-Ning Jia, Shan Fei, Xiang-Ji Ying, Yan Zhang, Shuang-Xi Li, Yu Sun, Zi-Yu Li, Jia-Fu Ji
World Journal of Gastrointestinal Oncology.2021; 13(12): 2161. CrossRef

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Adjuvant Chemotherapy in Microsatellite Instability–High Gastric Cancer: Jin Won Kim, Sung-Yup Cho, Jeesoo Chae, Ji-Won Kim, Tae-Yong Kim, Keun-Wook Lee, Do-Youn Oh, Yung-Jue Bang, Seock-Ah Im; Cancer Res Treat. 2020;52(4):1178-1187. Published online June 11, 2020; DOI: https://doi.org/10.4143/crt.2020.313

Abstract PDF Supplementary Material PubReader ePub

Purpose
Microsatellite instability (MSI) status may affect the efficacy of adjuvant chemotherapy in gastric cancer. In this study, the clinical characteristics of MSI-high (MSI-H) gastric cancer and the predictive value of MSI-H for adjuvant chemotherapy in large cohorts of gastric cancer patients were evaluated. Material and Methods This study consisted of two cohorts. Cohort 1 included gastric cancer patients who received curative resection with pathologic stage IB-IIIC. Cohort 2 included patients with MSI-H gastric cancer who received curative resection with pathologic stage II/III. MSI was examined using two mononucleotide markers and three dinucleotide markers.
Results
Of 359 patients (cohort 1), 41 patients (11.4%) had MSI-H. MSI-H tumors were more frequently identified in older patients (p < 0.001), other histology than poorly cohesive, signet ring cell type (p=0.005), intestinal type (p=0.028), lower third tumor location (p=0.005), and absent perineural invasion (p=0.027). MSI-H status has a tendency of better disease-free survival (DFS) and overall survival (OS) in multivariable analyses (hazard ratio [HR], 0.4; p=0.059 and HR, 0.4; p=0.063, respectively). In the analysis of 162 MSI-H patients (cohort 2), adjuvant chemotherapy showed a significant benefit with respect to longer DFS and OS (p=0.047 and p=0.043, respectively). In multivariable analysis, adjuvant chemotherapy improved DFS (HR, 0.4; p=0.040).
Conclusion
MSI-H gastric cancer had distinct clinicopathologic findings. Even in MSI-H gastric cancer of retrospective cohort, adjuvant chemotherapy could show a survival benefit, which was in contrast to previous prospective studies and should be investigated in a further prospective trial.

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Management of Microsatellite Instability High (MSI-H) Gastroesophageal Adenocarcinoma
Katherine I. Zhou, Brent A. Hanks, John H. Strickler
Journal of Gastrointestinal Cancer.2024; 55(2): 483. CrossRef
The Chinese Society of Clinical Oncology (CSCO): Clinical guidelines for the diagnosis and treatment of gastric cancer, 2023
Feng‐Hua Wang, Xiao‐Tian Zhang, Lei Tang, Qi Wu, Mu‐Yan Cai, Yuan‐Fang Li, Xiu‐Juan Qu, Hong Qiu, Yu‐Jing Zhang, Jie‐Er Ying, Jun Zhang, Ling‐Yu Sun, Rong‐Bo Lin, Chang Wang, Hao Liu, Miao‐Zhen Qiu, Wen‐Long Guan, Sheng‐Xiang Rao, Jia‐Fu Ji, Yan Xin, Wei‐
Cancer Communications.2024; 44(1): 127. CrossRef
Clinical Significance of Fibrinogen and Platelet to Pre-Albumin Ratio in Predicting the Prognosis of Advanced Gastric Cancer
Huakai Tian, Zitao Liu, Zuo Zhang, Lipeng Zhang, Zhen Zong, Jiang Liu, Houqun Ying, Hui Li
Journal of Inflammation Research.2023; Volume 16: 4373. CrossRef
Fatty acid metabolism is related to the immune microenvironment changes of gastric cancer and RGS2 is a new tumor biomarker
Shifeng Yang, Boshi Sun, Wenjing Li, Hao Yang, Nana Li, Xinyu Zhang
Frontiers in Immunology.2022;[Epub] CrossRef
Chemotherapy in Neuroendocrine Tumors
Satya Das, Taymeyah Al-Toubah, Jonathan Strosberg
Cancers.2021; 13(19): 4872. CrossRef

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A Multi-cohort Study of the Prognostic Significance of Microsatellite Instability or Mismatch Repair Status after Recurrence of Resectable Gastric Cancer: Ji Yeong An, Yoon Young Choi, Jeeyun Lee, Woo Jin Hyung, Kyoung-Mee Kim, Sung Hoon Noh, Min-Gew Choi, Jae-Ho Cheong; Cancer Res Treat. 2020;52(4):1153-1161. Published online May 4, 2020; DOI: https://doi.org/10.4143/crt.2020.173

Abstract PDF Supplementary Material PubReader ePub

Purpose
High microsatellite instability (MSI) is related to good prognosis in gastric cancer. We aimed to identify the prognostic factors of patients with recurrent gastric cancer and investigate the role of MSI as a prognostic and predictive biomarker of survival after tumor recurrence.
Materials and Methods
This retrospective cohort study enrolled patients treated for stage II/III gastric cancer who developed tumor recurrence and in whom the MSI status or mismatch repair (MMR) status of the tumor was known. MSI status and the expression of MMR proteins were evaluated using polymerase chain reaction and immunohistochemical analysis, respectively.
Results
Of the 790 patients included, 64 (8.1%) had high MSI status or MMR deficiency. The tumor-node-metastasis stage, type of recurrence, Lauren classification, chemotherapy after recurrence, and interval to recurrence were independently associated with survival after tumor recurrence. The MSI/MMR status and receiving adjuvant chemotherapy were not associated with survival after recurrence. In a subgroup analysis of patients with high MSI or MMR-deficient gastric cancer, those who did not receive adjuvant chemotherapy had better treatment response to chemotherapy after recurrence than those who received adjuvant chemotherapy.
Conclusion
Patients with high MSI/MMR-deficient gastric cancer should be spared from adjuvant chemotherapy after surgery, but aggressive chemotherapy after recurrence should be considered. Higher tumor-node-metastasis stage, Lauren classification, interval to recurrence, and type of recurrence are associated with survival after tumor recurrence and should thus be considered when establishing a treatment plan and designing clinical trials targeting recurrent gastric cancer.

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HIGD1B, as a novel prognostic biomarker, is involved in regulating the tumor microenvironment and immune cell infiltration; its overexpression leads to poor prognosis in gastric cancer patients
Shibo Wang, Siyi Zhang, Xiaoxuan Li, Xiangxue Li, Shufen Zhao, Jing Guo, Shasha Wang, Rui Wang, Mengqi Zhang, Wensheng Qiu
Frontiers in Immunology.2024;[Epub] CrossRef
Proteomic signatures of infiltrative gastric cancer by proteomic and bioinformatic analysis
Li-Hua Zhang, Hui-Qin Zhuo, Jing-Jing Hou, Yang Zhou, Jia Cheng, Jian-Chun Cai
World Journal of Gastrointestinal Oncology.2022; 14(11): 2097. CrossRef
The distinct clinical trajectory, metastatic sites, and immunobiology of microsatellite-instability-high cancers
Shuting Han, Aik Yong Chok, Daniel Yang Yao Peh, Joshua Zhi-Ming Ho, Emile Kwong Wei Tan, Si-Lin Koo, Iain Bee-Huat Tan, Johnny Chin-Ann Ong
Frontiers in Genetics.2022;[Epub] CrossRef
Mismatch Repair Status Characterization in Oncologic Pathology: Taking Stock of the Real-World Possibilities
Roberto Piciotti, Konstantinos Venetis, Elham Sajjadi, Nicola Fusco
Journal of Molecular Pathology.2021; 2(2): 93. CrossRef
The Impact of Mismatch Repair Status on Prognosis of Patients With Gastric Cancer: A Multicenter Analysis
Wen-Long Guan, Yue Ma, Yue-Hong Cui, Tian-Shu Liu, Yan-Qiao Zhang, Zhi-Wei Zhou, Jian-Ying Xu, Li-Qiong Yang, Jia-Yu Li, Yu-Ting Sun, Rui-Hua Xu, Feng-Hua Wang, Miao-Zhen Qiu
Frontiers in Oncology.2021;[Epub] CrossRef
Establishment of a 5-gene risk model related to regulatory T cells for predicting gastric cancer prognosis
Gang Hu, Ningjie Sun, Jiansong Jiang, Xiansheng Chen
Cancer Cell International.2020;[Epub] CrossRef
Mismatch Repair System Genomic Scars in Gastroesophageal Cancers: Biology and Clinical Testing
Gianluca Lopez, Konstantinos Venetis, Elham Sajjadi, Nicola Fusco
Gastrointestinal Disorders.2020; 2(4): 341. CrossRef

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Immunogenicity and Optimal Timing of 13-Valent Pneumococcal Conjugate Vaccination during Adjuvant Chemotherapy in Gastric and Colorectal Cancer: A Randomized Controlled Trial: Wonyoung Choi, Jong Gwang Kim, Seung-Hoon Beom, Jun-Eul Hwang, Hyun-Jung Shim, Sang-Hee Cho, Min-Ho Shin, Sin-Ho Jung, Ik-Joo Chung, Joon Young Song, Woo Kyun Bae; Cancer Res Treat. 2020;52(1):246-253. Published online July 9, 2019; DOI: https://doi.org/10.4143/crt.2019.189

Abstract PDF Supplementary Material PubReader ePub

Purpose
Pneumococcal vaccination (13-valent pneumococcal conjugate vaccine [PCV13]) is recommended to cancer patients undergoing systemic chemotherapy. However, the optimal time interval between vaccine administration and initiation of chemotherapy has been little studied in adult patients with solid malignancies.
Materials and Methods
We conducted a prospective randomized controlled trial to evaluate whether administering PCV13 on the first day of chemotherapy is non-inferior to vaccinating 2 weeks prior to chemotherapy initiation. Patients were randomly assigned to two study arms, and serum samples were collected at baseline and 4 weeks after vaccination to analyze the serologic response against Streptococcus pneumoniae using a multiplexed opsonophagocytic killing assay.
Results
Of the 92 patients who underwent randomization, 43 patients in arm A (vaccination 2 weeks before chemotherapy) and 44 patients in arm B (vaccination on the first day of chemotherapy) were analyzed. Immunogenicity was assessed by geometric mean and fold-increase of post-vaccination titers, seroprotection rates (percentage of patients with post-vaccination titers > 1:64), and seroconversion rates (percentage of patients with > 4-fold increase in post-vaccination titers). Serologic responses to PCV13 did not differ significantly between the two study arms according to all three types of assessments.
Conclusion
The overall antibody response to PCV13 is adequate in patients with gastric and colorectal cancer during adjuvant chemotherapy, and no significant difference was found when patients were vaccinated two weeks before or on the day of chemotherapy initiation.

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ESMO Open.2023; 8(3): 101215. CrossRef
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Kay Choong See
Vaccines.2023; 11(5): 908. CrossRef
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Tabitha M. Sabu, Vanita Noronha, Abhijith R. Rao, Anita Kumar, Shreya Gattani, Anant Ramaswamy, Anupa Pillai, Ratan Dhekale, Renita Castelino, Sharath Kumar, Arshiya Sehgal, Pallavi Rana, Vikram Gota, Rajendra Badwe, Kumar Prabhash
Cancer Research, Statistics, and Treatment.2023; 6(1): 52. CrossRef
Review of Vaccination Recommendations in Guidelines for Non-Communicable Diseases with Highest Global Disease Burden among Adults 75 Years Old and Above
Abdul Rahman Ishak, Yu Chun Hsieh, Harshitha Srinivasan, Kay Choong See
Vaccines.2023; 11(6): 1076. CrossRef
Impact of influenza vaccination on survival of patients with advanced cancer receiving immune checkpoint inhibitors (INVIDIa-2): final results of the multicentre, prospective, observational study
Melissa Bersanelli, Elena Verzoni, Alessio Cortellini, Raffaele Giusti, Lorenzo Calvetti, Paola Ermacora, Marilena Di Napoli, Annamaria Catino, Valentina Guadalupi, Giorgia Guaitoli, Vieri Scotti, Francesca Mazzoni, Antonello Veccia, Pamela Francesca Gugl
eClinicalMedicine.2023; 61: 102044. CrossRef
Immunological Assessment of Recent Immunotherapy for Colorectal Cancer
Subhadeep Das, Diptikanta Acharya
Immunological Investigations.2023; 52(8): 1065. CrossRef
Vaccination anti-infectieuse : pour qui ? Quand ? Comment ?
M. Lachâtre, M. Murris-Espin, J. Mazières
Revue des Maladies Respiratoires Actualités.2023; 15(2): 2S209. CrossRef
Predictive biomarkers and specific immune responses of COVID-19 mRNA vaccine in patients with cancer: prospective results from the CACOV-VAC trial
Laurie Spehner, Emeline Orillard, Antoine Falcoz, Quentin Lepiller, Adeline Bouard, Hamadi Almotlak, Stefano Kim, Elsa Curtit, Guillaume Meynard, Marine Jary, Charlee Nardin, Kamal Asgarov, Syrine Abdeljaoued, Ugo Chartral, Virginie Mougey, Myriam Ben Khe
BMJ Oncology.2023; 2(1): e000054. CrossRef
Novel Pneumococcal Protein-Polysaccharide Conjugate Vaccine Based on Biotin-Streptavidin
Mengze Guo, Xiaonan Guo, Chenxing Zhang, Shidong Zhu, Yue Zhang, Tiejun Gu, Wei Kong, Yongge Wu, Nancy E. Freitag
Infection and Immunity.2022;[Epub] CrossRef
COVID-19 vaccination in cancer patients: a narrative review
Suranjith L Seneviratne, Pamodh Yasawardene, Widuranga Wijerathne, Buddhika Somawardana
Journal of International Medical Research.2022;[Epub] CrossRef
Invasive pneumococcal disease among adults with hematological and solid organ malignancies: A population-based cohort study
Hannah M. Garcia Garrido, Mirjam J. Knol, Jarom Heijmans, Nina M. van Sorge, Elisabeth A.M. Sanders, Heinz-Josef Klümpen, Martin P. Grobusch, Abraham Goorhuis
International Journal of Infectious Diseases.2021; 106: 237. CrossRef
Can Cancer Survivors Donate Convalescent Plasma for the Treatment of COVID-19?
Ajit Venniyoor
Indian Journal of Medical and Paediatric Oncology.2021; 42(01): 021. CrossRef
Reduced humoral immune response after BNT162b2 coronavirus disease 2019 messenger RNA vaccination in cancer patients under antineoplastic treatment
M. Peeters, L. Verbruggen, L. Teuwen, G. Vanhoutte, S. Vande Kerckhove, B. Peeters, S. Raats, I. Van der Massen, S. De Keersmaecker, Y. Debie, M. Huizing, P. Pannus, K. Neven, K.K. Ariën, G.A. Martens, M. Van Den Bulcke, E. Roelant, I. Desombere, S. Angui
ESMO Open.2021; 6(5): 100274. CrossRef
Recent Topics of Pneumococcal Vaccination: Indication of Pneumococcal Vaccine for Individuals at a Risk of Pneumococcal Disease in Adults
Nobuhiro Asai, Hiroshige Mikamo
Microorganisms.2021; 9(11): 2342. CrossRef
Vaccination practices, efficacy, and safety in adults with cancer
Laboni Sarkar, Vasu Babu Goli, Nandini Menon, Vijay Maruti Patil, Vanita Noronha, Kumar Prabhash
Cancer Research, Statistics, and Treatment.2021; 4(3): 505. CrossRef
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Hannah M. Garcia Garrido, Mirjam J. Knol, J. Heijmans, Nina M. van Sorge, Elisabeth A.M. Sanders, Heinz-Josef Klümpen, Martin P. Grobusch, Abraham Goorhuis
SSRN Electronic Journal .2020;[Epub] CrossRef

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