Cancer Research and Treatment

Original Articles

Lung and Thoracic cancer

Genomic Landscape of Pulmonary Sarcomatoid Carcinoma: Hyun Jung Kwon, Sejoon Lee, Yeon Bi Han, Jeonghyo Lee, Soohyeon Kwon, Hyojin Kim, Jin-Haeng Chung; Cancer Res Treat. 2024;56(2):442-454. Published online November 14, 2023; DOI: https://doi.org/10.4143/crt.2023.764

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Purpose
Pulmonary sarcomatoid carcinoma (PSC) is a rare aggressive subtype of non–small cell lung cancer (NSCLC) with limited therapeutic strategies. We attempted to elucidate the evolutionary trajectories of PSC using multiregional and longitudinal tumor samples.
Materials and Methods
A total of 31 patients were enrolled in this study and 11 longitudinal samples were available from them. Using whole exome sequencing data, we analyzed the mutational signatures in both carcinomatous and sarcomatous areas in primary tumors of the 31 patients and longitudinal samples obtained from 11 patients. Furthermore, digital droplet polymerase chain reaction (ddPCR), and programmed death-ligand 1 (PD-L1) immunohistochemistry using the Ventana SP263 assay were performed.
Results
TP53 was identified as the most frequently altered gene in the primary (74%) and metastatic (73%) samples. MET exon 14 skipping mutations, confirmed by ddPCR, and TP53 mutations were mutually exclusive; whereas, MET exon 14 skipping mutations frequently co-occurred with MDM2 amplification. Metastatic tumors showed dissimilar genetic profiles from either primary component. During metastasis, the signatures of APOBEC decreased in metastatic lesions compared with that in primary lesions. PSC showed higher MET and KEAP1 mutations and stronger PD-L1 protein expression compared with that recorded in other NSCLCs.
Conclusion
Decreased APOBEC signatures and subclonal diversity were detected during malignant progression in PSC. Frequent MET mutations and strong PD-L1 expression distinguished PSC from other NSCLCs. The aggressiveness and therapeutic difficulties of PSC were possibly attributable to profound intratumoral and intertumoral genetic diversity. Next-generation sequencing could suggest the appropriate treatment strategy for PSC.

Citations

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Pulmonary pleomorphic carcinoma associated with cystic airspace and recurrent spontaneous pneumothorax: A case report
Qiangsheng Li, Jing Zhang, Youjie Gong, Xudong Wan, Song Zhang, Zhongwang Li, Jun Liu
Oncology Letters.2025; 30(1): 1. CrossRef
Combination of epirubicin and cyclophosphamide for the treatment of advanced pulmonary sarcomatoid carcinoma: A case report and literature review
Ruoyu Deng, Jialing Lv, Fang Wang, Yanqiong Chen, Junfeng Wang, Lin Wang, Lixia Mu, Zhijun Zhang, Wen Zhang, Chao Zhang
Journal of Cancer Research and Therapeutics.2025; 21(2): 512. CrossRef
PD-L1 Expression and Its Modulating Factors in Anaplastic Thyroid Carcinoma
Shipra Agarwal, Chan Kwon Jung, Pranitha Gaddam, Mitsuyoshi Hirokawa, Takuya Higashiyama, Jen-Fan Hang, Wei-An Lai, Somboon Keelawat, Zhiyan Liu, Hee Young Na, So Yeon Park, Junya Fukuoka, Shinya Satoh, Zhanna Mussazhanova, Masahiro Nakashima, Kennichi Ka
American Journal of Surgical Pathology.2024; 48(10): 1233. CrossRef

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Comparison of the Predictive Power of a Combination versus Individual Biomarker Testing in Non–Small Cell Lung Cancer Patients Treated with Immune Checkpoint Inhibitors: Hyojin Kim, Hyun Jung Kwon, Eun Sun Kim, Soohyeon Kwon, Kyoung Jin Suh, Se Hyun Kim, Yu Jung Kim, Jong Seok Lee, Jin-Haeng Chung; Cancer Res Treat. 2022;54(2):424-433. Published online July 7, 2021; DOI: https://doi.org/10.4143/crt.2021.583

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Purpose
Since tumor mutational burden (TMB) and gene expression profiling (GEP) have complementary effects, they may have improved predictive power when used in combination. Here, we investigated the ability of TMB and GEP to predict the immunotherapy response in patients with non–small cell lung cancer (NSCLC) and assessed if this combination can improve predictive power compared to that when used individually.
Materials and Methods
This retrospective cohort study included 30 patients with NSCLC who received immune checkpoint inhibitors (ICI) therapy at the Seoul National University Bundang Hospital. programmed cell death-ligand-1 (PD-L1) protein expression was assessed using immunohistochemistry, and TMB was measured by targeted deep sequencing. Gene expression was determined using NanoString nCounter analysis for the PanCancer IO360 panel, and enrichment analysis were performed.
Results
Eleven patients (36.7%) showed a durable clinical benefit (DCB), whereas 19 (63.3%) showed no durable benefit (NDB). TMB and enrichment scores (ES) showed significant differences between the DCB and NDB groups (p=0.044 and p=0.017, respectively); however, no significant correlations were observed among TMB, ES, and PD-L1. ES was the best single biomarker for predicting DCB (area under the curve [AUC], 0.794), followed by TMB (AUC, 0.679) and PD-L1 (AUC, 0.622). TMB and ES showed the highest AUC (0.837) among other combinations (AUC [TMB and PD-L1], 0.777; AUC [PD-L1 and ES], 0.763) and was similar to that of all biomarkers used together (0.832).
Conclusion
The combination of TMB and ES may be an effective predictive tool to identify patients with NSCLC patients who would possibly benefit from ICI therapies.

Citations

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Microdroplet-enhanced chip platform for high-throughput immunotherapy marker screening from extracellular vesicle RNAs and membrane proteins
Chuanhao Tang, Zaizai Dong, Shi Yan, Bing Liu, Zhiying Wang, Long Cheng, Feng Liu, Hong Sun, Yimeng Du, Lu Pan, Yuhao Zhou, Zhiyuan Jin, Libo Zhao, Nan Wu, Lingqian Chang, Xiaojie Xu
Biosensors and Bioelectronics.2025; 267: 116748. CrossRef
Exploring the ferroptosis-related gene lipocalin 2 as a potential biomarker for sepsis-induced acute respiratory distress syndrome based on machine learning
Jiayi Zhan, Junming Chen, Liyan Deng, Yining Lu, Lianxiang Luo
Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease.2024; 1870(4): 167101. CrossRef
Evaluation of Blood Tumor Mutation Burden for the Efficacy of Second-Line Atezolizumab Treatment in Non-Small Cell Lung Cancer: BUDDY Trial
Cheol-Kyu Park, Ha Ra Jun, Hyung-Joo Oh, Ji-Young Lee, Hyun-Ju Cho, Young-Chul Kim, Jeong Eun Lee, Seong Hoon Yoon, Chang Min Choi, Jae Cheol Lee, Sung Yong Lee, Shin Yup Lee, Sung-Min Chun, In-Jae Oh
Cells.2023; 12(9): 1246. CrossRef
Unveiling the role of regulatory T cells in the tumor microenvironment of pancreatic cancer through single-cell transcriptomics and in vitro experiments
Wei Xu, Wenjia Zhang, Dongxu Zhao, Qi Wang, Man Zhang, Qiang Li, Wenxin Zhu, Chunfang Xu
Frontiers in Immunology.2023;[Epub] CrossRef
Facilitating “Omics” for Phenotype Classification Using a User-Friendly AI-Driven Platform: Application in Cancer Prognostics
Uraquitan Lima Filho, Tiago Alexandre Pais, Ricardo Jorge Pais
BioMedInformatics.2023; 3(4): 1071. CrossRef
Current state and challenges of emerging biomarkers for immunotherapy in hepatocellular carcinoma (Review)
Mo Cheng, Xiufeng Zheng, Jing Wei, Ming Liu
Experimental and Therapeutic Medicine.2023;[Epub] CrossRef

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Lung cancer

Genetic Alterations in Preinvasive Lung Synchronous Lesions: Soyeon Ahn, Jisun Lim, Soo Young Park, Hyojin Kim, Hyun Jung Kwon, Yeon Bi Han, Choon-Taek Lee, Sukki Cho, Jin-Haeng Chung; Cancer Res Treat. 2020;52(4):1120-1134. Published online June 5, 2020; DOI: https://doi.org/10.4143/crt.2020.307

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Purpose
Despite advances in treatment, lung cancer remains the leading cause of cancer mortality. This study aimed to characterise genome-wide tumorigenesis events and to understand the hypothesis of the multistep carcinogenesis of lung adenocarcinoma (LUAD)
Materials and Methods
We conducted multiregion whole-exome sequencing of LUAD with synchronous atypical adenomatous hyperplasia (AAH), adenocarcinoma in situ, or minimally invasive adenocarcinoma of 19 samples from three patients to characterize genome-wide tumorigenesis events and validate the hypothesis of the multistep carcinogenesis of LUAD. We identified potential pathogenic mutations preserved in preinvasive lesions and supplemented the finding by allelic variant level from RNA sequencing.
Results
Overall, independent mutational profiles were observed per patient and between patients. Some shared mutations including epidermal growth factor receptor (EGFR , p.L858R) were present across synchronous lesions.
Conclusion
Here, we show that there are driver gene mutations in AAH, and they may exacerbate as a sequence in a histological continuum, supporting the Darwinian evolution model of cancer genome. The intertumoral and intratumoral heterogeneity of synchronous LUAD implies that multi-biomarker strategies might be necessary for appropriate treatment.

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Gene Expression Profiles of Multiple Synchronous Lesions in Lung Adenocarcinoma
Jisun Lim, Yeon Bi Han, Soo Young Park, Soyeon Ahn, Hyojin Kim, Hyun Jung Kwon, Choon-Taek Lee, Sukki Cho, Jin-Haeng Chung
Cells.2021; 10(12): 3484. CrossRef

8,883 View
154 Download
2 Web of Science
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