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Volume 37(1); February 2005
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Review Article
Biology of SNU Cell Lines
Ja-Lok Ku, Jae-Gahb Park
Cancer Res Treat. 2005;37(1):1-19.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.1
AbstractAbstract PDFPubReaderePub

SNU (Seoul National University) cell lines have been established from Korean cancer patients since 1982. Of these 109 cell lines have been characterized and reported, i.e., 17 colorectal carcinoma, 12 hepatocellular carcinoma, 11 gastric carcinoma, 12 uterine cervical carcinoma, 17 B-lymphoblastoid cell lines derived from cancer patients, 5 ovarian carcinoma, 3 malignant mixed Mllerian tumor, 6 laryngeal squamous cell carcinoma, 7 renal cell carcinoma, 9 brain tumor, 6 biliary tract, and 4 pancreatic carcinoma cell lines. These SNU cell lines have been distributed to biomedical researchers domestic and worldwide through the KCLB (Korean Cell Line Bank), and have proven to be of value in various scientific research fields. The characteristics of these cell lines have been reported in over 180 international journals by our laboratory and by many other researchers from 1987. In this paper, the cellular and molecular characteristics of SNU human cancer cell lines are summarized according to their genetic and epigenetic alterations and functional analysis.

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Original Articles
Single Immunochemical Fecal Occult Blood Test for Detection of Colorectal Neoplasia
Dae Kyung Sohn, Seung-Yong Jeong, Hyo Seong Choi, Seok-Byung Lim, Jin Myeong Huh, Dae-Hyun Kim, Dae Yong Kim, Young Hoon Kim, Hee Jin Chang, Kyung Hae Jung, Joong-Bae Ahn, Hyun Kyung Kim, Jae-Gahb Park
Cancer Res Treat. 2005;37(1):20-23.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.20
AbstractAbstract PDFPubReaderePub
Purpose

This study was designed to investigate the validity of a single immunochemical fecal occult blood test (FOBT) for detection of colorectal neoplasia.

Materials and Methods

A total of 3,794 average-risk screenees and 304 colorectal cancer patients admitted to the National Cancer Center, Korea, between May 2001 and November 2002, were studied prospectively. All screenees and admitted patients underwent FOBT and total colonoscopic examinations. Stools were self-collected, and examined using an immunochemical fecal occult blood test (OC-hemodia®, Eiken Chemical Co. Tokyo, Japan) and an OC-sensor analyzer® (Eiken Chemical Co. Tokyo, Japan).

Results

Of the 3,794 asymptomatic screenees, the colonoscopy identified colorectal adenomas and cancers in 613 (16.2%) and 12 (0.3%) subjects, respectively. The sensitivities of a single immunochemical FOBT for detecting colorectal cancers and adenomas in screenees were 25.0 and 2.4%, respectively. The false positive rate of FOBT for colorectal cancer in screenees was 1.19%. For the total 316 colorectal cancer cases (including 12 cases from screenees), the FOBT sensitivities according to the T-stage were 38.5, 75.0%, 78.9 and 79.2% for T1, 2, 3 and 4 cancers, respectively. The sensitivities according to the Dukes stages A, B and C were 63.4, 79.3 and 78.6%, respectively.

Conclusion

The sensitivities of a single immunochemical FOBT for detecting colorectal cancers and adenomas in screenees were 25.0 and 2.4%, respectively. The sensitivities of FOBT were about 80% for Dukes B or C colorectal cancers and 63.4% for Dukes A.

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High-Dose Chemotherapy of Cyclophosphamide, Thiotepa, and Carboplatin (CTCb) Followed by Autologous Stem-Cell Transplantation for Metastatic Breast Cancer Patients: A 6-Year Follow-Up Result
Hee-Jung Sohn, Sang-Hee Kim, Gyeong-Won Lee, Shin Kim, Hye Jin Kang, Jin-Hee Ahn, Sung-Bae Kim, Sang-We Kim, Woo Kun Kim, Cheolwon Suh
Cancer Res Treat. 2005;37(1):24-30.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.24
AbstractAbstract PDFPubReaderePub
Purpose

The benefit of high-dose chemotherapy (HDC) for metastatic breast cancer (MBC) is controversial. We evaluated the efficacy and safety of HDC with cyclophosphamide, thiotepa, and carboplatin (CTCb) followed by autologous stem-cell transplantation (ASCT) for MBC patients.

Materials and Methods

From September 1994 to December 1999, 23 MBC patients were enrolled. All the patients received 2 to 10 cycles of induction chemotherapy. Before transplantation, 12 patients were in complete response (CR), nine were in partial response (PR), and two had progressive disease (PD). The HDC regimen consisted of cyclophosphamide 1,500 mg/m2/day, thiotepa 125 mg/m2/day and carboplatin 200 mg/m2/day intravenously for 4 consecutive days.

Results

After ASCT, 13 patients (56%) had a CR, five (22%) had a PR, three (13%) had no change, while two (9%) showed a PD. Seventeen patients relapsed or progressed during the median follow-up of 78 months. The median progression-free survival (PFS) time was 11 months and the median overall survival (OS) time was 23 months. The 5-year PFS and OS rates were 22% and 25%, respectively. On the multivariate analyses, less than 4 involved lymph nodes was predictive of a better PFS and OS.

Conclusion

HDC with CTCb for MBC has acceptable toxicity; however, this treatment does not show a survival benefit.

Citations

Citations to this article as recorded by  
  • Real-world Experience of Improvement in the Survival of Lymphoma and Myeloma Patients with Autologous Stem Cell Transplantation over a 25-year Period
    Hyungwoo Cho, Shin Kim, Kyoungmin Lee, Jung Sun Park, Cheolwon Suh
    The Korean Journal of Medicine.2021; 96(6): 501.     CrossRef
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Treatment Outcome of Limited Stage Hodgkin's Disease
Jung Hun Kang, Yong Chan Ahn, Won Seog Kim, Won Ki Kang
Cancer Res Treat. 2005;37(1):31-36.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.31
AbstractAbstract PDFPubReaderePub
Purpose

The 10-year overall survival rate following conventional treatments for patients with limited-stage Hodgkin's disease (HD) exceeds 90%. However, the clinical features and treatment outcome of HD in Korea have not been extensively characterized due to its low incidence. In this study, we attempted to analyze the treatment outcome of different modalities in limited stage HD patients.

Materials and Methods

Twenty one Hodgkin's disease patients, referred to the Samsung Medical Center between January 1997 and December 2003, were enrolled in this study. Limited stage Hodgkin's disease was subdivided into low and high risk groups. All evaluable patients received treatment.

Results

There were 13 and 8 patients in the low and high risk groups, respectively. Eighteen patients (86%) obtained complete response (CR) and 3 patients (14%) achieved an undetermined complete response (CRu). Fourteen (67%), 4 (19%) and 3 (14%) cases received combination chemotherapy, radiotherapy alone and chemotherapy alone, respectively. Four cases relapsed and 2 obtained a second CR. The 5-year overall and disease-free survival rates were 90 and 72%, respectively, for all patients. The median follow-up duration was 31 months. There was no difference in disease free survival (DFS) between the low and high risk groups. Although 12 cases had neutropenia greater than grade III, none experienced neutropenic fever.

Conclusion

The treatment outcome of limited-stage HD was excellent, regardless to the initial treatment modality.

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A Preliminary Results of a Randomized Trial Comparing Monthly 5-flourouracil and Cisplatin to Weekly Cisplatin Alone Combined with Concurrent Radiotherapy for Locally Advanced Cervical Cancer
Young Seok Kim, Seong Soo Shin, Eun Kyung Choi, Jong Hoon Kim, Seung Do Ahn, Sang-wook Lee, Heon-Jin Park, Young-Tak Kim, Jung-Eun Mok, Joo-Hyun Nam
Cancer Res Treat. 2005;37(1):37-43.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.37
AbstractAbstract PDFPubReaderePub
Purpose

To determine the superior chemotherapeutic regimen between monthly 5-FU plus cisplatin (FP) and weekly cisplatin alone in concurrent chemoradiotherapy for locally advanced cervical cancer, the compliance of treatment, response, survival and toxicities were analyzed between the two arms.

Materials and Methods

Between March 1998 and December 2001, 61 patients with locally advanced cervical cancer (stage IIB through IVA) and negative para-aortic lymph nodes were randomly assigned to either 'monthly FP' (arm I, n=34) or 'weekly cisplatin' (arm II, n=27) with concurrent radiotherapy. The patients of arm I received FP (5-FU 1,000 mg/m2/day + cisplatin 20 mg/m2/day, for 5 days, for 3 cycles at 4 week intervals) and those of arm II received cisplatin (30 mg/m2/day, for 6 cycles at 1 week intervals) with concurrent radiotherapy. The radiotherapy consisted of 41.4~50.4 Gy external beam irradiation in 23~28 fractions to the whole pelvis, with high dose rate brachytherapy delivering a dose of 30~35 Gy in 6~7 fractions to point A. During the brachytherapy, a parametrial boost was delivered. The median follow-up period for survivors was 44 months.

Results

The compliance of treatment in monthly FP weekly cisplatin arms were 62 and 81%, respectively. The complete response rates at 3 months were 96 and 88% in arms I and II, respectively. The 4-year overall survival and disease free survival rates were 64 and 54% in the arm I and 77 and 66% in the arm II, respectively. The incidence of hematologic toxicity more than grade 2 was 29% in the arm I and 15% in the arm II. Only one patient in arm I experienced grade 3 gastrointestinal toxicity. No severe genitourinary toxicity was observed.

Conclusion

No significant difference was observed in the compliance, responses, survival rates and acute toxicities between the two treatment arms. More patients and further follow up will be required.

Citations

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  • American Brachytherapy Task Group Report: A pooled analysis of clinical outcomes for high-dose-rate brachytherapy for cervical cancer
    Jyoti Mayadev, Akila Viswanathan, Yu Liu, Chin-Shang Li, Kevin Albuquerque, Antonio L. Damato, Sushil Beriwal, Beth Erickson
    Brachytherapy.2017; 16(1): 22.     CrossRef
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    Yan Hu, Zhi-Qiang Cai, Xiao-Yan Su
    Asian Pacific Journal of Cancer Prevention.2012; 13(9): 4301.     CrossRef
  • Laparoscopy-Assisted Intracavitary Radiotherapy Tandem Placement for Patients With Cervical Cancer
    Myong Cheol Lim, Dae Chul Jung, Joo-Young Kim, Sang-Yoon Park
    International Journal of Gynecologic Cancer.2009; 19(6): 1125.     CrossRef
  • Adoptive Transfer of Human Papillomavirus E7-specific CTL Enhances Tumor Chemoresponse Through the Perforin/Granzyme-mediated Pathway
    Jeong-Im Sin, Jung-Min Kim, Sung Hwa Bae, In Hee Lee, Jong Sup Park, Hun Mo Ryoo
    Molecular Therapy.2009; 17(5): 906.     CrossRef
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Comparison of 30 mg and 40 mg of Mitomycin C Intravesical Instillation in Korean Superficial Bladder Cancer Patients: Prospective, Randomized Study
Chang Wook Jeong, Hwang Gyun Jeon, Cheol Kwak, Hyeon Jeong, Sang Eun Lee
Cancer Res Treat. 2005;37(1):44-47.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.44
AbstractAbstract PDFPubReaderePub
Purpose

A prospective study was performed to compare the efficacy and safety of intravesical mitomycin C (MMC) instillation for the prophylaxis of bladder cancer at different concentrations (30 mg or 40 mg).

Materials and Methods

Ninety-seven patients that received complete transurethral resection for superficial bladder cancer were divided into two-randomized groups. One group (n=53) received 30 mg and the other group (n=44) received 40 mg dose of MMC weekly for 8 weeks, which was followed monthly for 10 months as maintenance therapy. The recurrence rates and side effects in both groups were recorded. The mean follow-up period was 32.4 months in the 30 mg group, and 32.0 months in the 40 mg group.

Results

The overall one and two year recurrence rates were 19% and 24% in the 30 mg group, and 12% and 22% in the 40 mg group, which was not significantly different (p>0.05). Most of the side effects were mild and transient. Moreover, the rates of the individual side effects were not statistically different in the two groups.

Conclusion

Our comparison of 30 mg and 40 mg intravesical MMC instillation showed no difference in either response or side effects. Thus, we tentatively conclude that we can use 30 mg instead of 40 mg as an intravesical MMC instillation dose.

Citations

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  • Mathematical model of MMC chemotherapy for non-invasive bladder cancer treatment
    Marom Yosef, Svetlana Bunimovich-Mendrazitsky
    Frontiers in Oncology.2024;[Epub]     CrossRef
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    Pietro Scilipoti, Aleksander Ślusarczyk, Mario de Angelis, Francesco Soria, Benjamin Pradere, Wojciech Krajewski, David D’Andrea, Andrea Mari, Francesco Del Giudice, Renate Pichler, José Daniel Subiela, Luca Afferi, Simone Albisinni, Laura Mertens, Ekater
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    F. Saint
    Progrès en Urologie - FMC.2021; 31(4): F121.     CrossRef
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    Yu-Ching Wen, Liang-Ming Lee, Yung-Wei Lin, Syuan-Hao Syu, Ke-Hsun Lin, Yen-Chun Fan, Hsin-Lun Lee, Benjamin Chung Howe Lai, Hung-Jen Shih
    International Journal of Hyperthermia.2021; 38(1): 1627.     CrossRef
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    Sunita Saxena, Usha Agrawal, Abhilasha Agarwal, Nandagudi Srinivasa Murthy, Nayan Kumar Mohanty
    BJU International.2006; 98(5): 1012.     CrossRef
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Clinical Prognostic Factors for Radical Cystectomy in Bladder Cancer
Seung Hyun Jeon, Sung-Hyun Jeon, Sung-Goo Chang
Cancer Res Treat. 2005;37(1):48-53.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.48
AbstractAbstract PDFPubReaderePub
Purpose

We investigated the effects of radical cystectomy and the prognostic factors that affect the survival of bladder cancer patients.

Materials and Methods

From 1979 to 2002, 59 patients with long-term follow up results of at least 2 years were enrolled in this study. Indications for surgery included muscle invasive bladder cancer and high-risk superficial bladder cancer. The cancer specific and recurrence free survival rates with respect to the possible prognostic factors were determined using Kaplan-Meier statistics.

Results

The mean patient age was 62.8 years (M: 48, F: 11), and the estimated 5- and 10-year survival rates were 62% and 39.4%, respectively. The median time to local or systemic recurrence was 16 months (range: 5~100), and the average survival durations after local and systemic recurrence were 14.4 months and 12.7 months, respectively. Pathologic stage, tumor grade, mean nuclear area, sex and lymphatic invasion were significant factors by univariate analysis (p<0.05). The disease related survival rate in patients having progression from an initial superficial tumor was lower than for those patients who displayed muscle invasive disease at the initial treatment. Multivariate analysis identified pathologic stage and lymphatic invasion as independent prognostic factors.

Conclusions

Radical cystectomy for organ-confined cancer showed favorable 5- and 10-year survival rates. The survival rate for patients with progression from an initial superficial tumor was worse than for those patients with invasive tumor at the initial presentation. The most significant independent prognostic factors were the pathologic stage and the presence of lymphatic invasion, which were highly correlated with all the investigated disease endpoints.

Citations

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  • Development of robust artificial neural networks for prediction of 5-year survival in bladder cancer
    Hriday P. Bhambhvani, Alvaro Zamora, Eugene Shkolyar, Kris Prado, Daniel R. Greenberg, Alex M. Kasman, Joseph Liao, Sumit Shah, Sandy Srinivas, Eila C. Skinner, Jay B. Shah
    Urologic Oncology: Seminars and Original Investigations.2021; 39(3): 193.e7.     CrossRef
  • Alterations of Global Histone H3K9 and H3K27 Methylation Levels in Bladder Cancer
    Jörg Ellinger, Anne Bachmann, Friederike Göke, Turang E. Behbahani, Claudia Baumann, Lukas C. Heukamp, Sebastian Rogenhofer, Stefan C. Müller
    Urologia Internationalis.2014; 93(1): 113.     CrossRef
  • Global histone H4K20 trimethylation predicts cancer-specific survival in patients with muscle-invasive bladder cancer
    Ann-Christin Schneider, Lukas C. Heukamp, Sebastian Rogenhofer, Guido Fechner, Patrick J. Bastian, Alexander von Ruecker, Stefan C. Müller, Jörg Ellinger
    BJU International.2011; 108(8b): E290.     CrossRef
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cDNA Microarray Analysis of Differential Gene Expression in Gastric Cancer Cells Sensitive and Resistant to 5-Fluorouracil and Cisplatin
Myung-Ju Ahn, Young-Do Yoo, Ki-Hwan Lee, Joon-Ik Ahn, Dong-Hyun Yu, Hye-Sook Lee, Ho-Suck Oh, Jung-Hye Choi, Yong-Sung Lee
Cancer Res Treat. 2005;37(1):54-62.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.54
AbstractAbstract PDFPubReaderePub
Purpose

Gastric cancer is one of the most prevalent cancers worldwide. 5-fluorouracil (5-FU) and cisplatin are the most commonly used drugs for the treatment of gastric cancer. However, a significant number of tumors often fail to respond to chemotherapy.

Materials and Methods

To better understand the molecular mechanisms underlying drug resistance in gastric cancer the gene expression in gastric cancer cells, which were either sensitive or resistant to 5-FU and cisplatin, were examined using cDNA microarray analysis. To confirm the differential gene expression, as determined using the microarray, semiquantitative RT-PCR was performed on a subset of differentially expressed cDNAs.

Results

69 and 45 genes, which were either up-regulated (9 and 22 genes) or down-regulated (60 and 25 genes), were identified in 5-FU- and cisplatin-resistant cells, respectively. Several genes, such as adaptor-related protein complex 1 and baculoviral IAP repeat-containing 3, were up-regulated in both drug-resistant cell types. Several genes, such as the ras homolog gene family, tropomyosin, tumor rejection antigen, protein disulfide isomerase-related protein, melanocortin 1 receptor, defensin, cyclophilin B, dual specificity phosphatase 8 and hepatocyte nuclear factor 3, were down-regulated in both drugresistant cell types.

Conclusion

These findings show that cDNA microarray analysis can be used to obtain gene expression profiles that reflect the effect of anticancer drugs on gastric cancer cells. Such data may lead to the assigning of signature expression profiles of drug-resistant tumors, which may help predict responses to drugs and assist in the design of tailored therapeutic regimens to overcome drug resistance.

Citations

Citations to this article as recorded by  
  • Molecular classification and prediction in gastric cancer
    Xiandong Lin, Yongzhong Zhao, Won-min Song, Bin Zhang
    Computational and Structural Biotechnology Journal.2015; 13: 448.     CrossRef
  • Identification of Differentially-Expressed Genes in Intestinal Gastric Cancer by Microarray Analysis
    Shizhu Zang, Ruifang Guo, Rui Xing, Liang Zhang, Wenmei Li, Min Zhao, Jingyuan Fang, Fulian Hu, Bin Kang, Yonghong Ren, Yonglong Zhuang, Siqi Liu, Rong Wang, Xianghong Li, Yingyan Yu, Jing Cheng, Youyong Lu
    Genomics, Proteomics & Bioinformatics.2014; 12(6): 276.     CrossRef
  • Protein disulfide isomerase in redox cell signaling and homeostasis
    Francisco R.M. Laurindo, Luciana A. Pescatore, Denise de Castro Fernandes
    Free Radical Biology and Medicine.2012; 52(9): 1954.     CrossRef
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Immunization with Adenoviral Vectors Carrying Recombinant IL-12 and E7 Enhanced the Antitumor Immunity against Human Papillomavirus 16-associated Tumor
Eun-Kyung Park, Young-Wook Kim, Joon-Mo Lee, Sung-Eun NamKoong, Do-Gang Kim, Heung-Jae Chun, Byoung-Don Han, Su-Mi Bae, Hyun-Sun Jin, Jeong-Im Sin, Woong-Shick Ahn
Cancer Res Treat. 2005;37(1):63-70.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.63
AbstractAbstract PDFPubReaderePub
Purpose

Human papillomavirus (HPV) infection has a significant role in cervical carcinogenesis, and HPV oncoprotein E7 plays an important part in the formation and maintenance of cervical cancer. Interleukin-12 (IL-12) has been reported to induce a cellular immune response, and to suppress the tumor growth and the E7 production. Here we describe the use of adenoviral delivery of the HPV 16 E7 subunit (AdE7) along with adenoviral delivery of IL-12 (AdIL-12) in mice with HPV-associated tumors.

Materials and Methods

Mice were injected with TC-1 cells to establish TC-1 tumor, and then they were immunized with AdIL-12 and/or AdE7 intratumorally. The anti tumor effects induced by AdIL-12 and/or E7 were evaluated by measuring the size of the tumor. E7-specific antibody and INF-γ production in sera, and the T-helper cell proliferative responses were then measured. Cytotoxic T-lymphocyte (CTL) and T cell subset depletion studies were also performed.

Results

Combined AdIL-12 and AdE7 infection at the tumor sites significantly enhanced the antitumor effects more than that of AdIL-12 or AdE7 single infection. This combined infection resulted in regression of the 9 mm sized tumors in 80% of animals as compare to the PBS group. E7-specific antibody and INF-γ production in the sera, and the T-helper cell proliferative responses were significantly higher with coinfection of AdIL-12 and AdE7 than with AdIL-12 or AdE7 alone. CTL response induced by AdIL-12 and AdE7 in the coinjected group suggested that tumor suppression was mediated by mostly CD8+ and only a little by the CD4+ T cells.

Conclusion

IL-12 and E7 application using adenovirus vector showed antitumor immunity effects against TC-1 tumor, and this system could be use in clinical applications for HPV-associated cancer. (ED note: nice abstract.)

Citations

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  • Development of a replication‐deficient adenoviral vector‐based vaccine candidate for the interception of HPV16‐ and HPV18‐induced infections and disease
    Selina Khan, Koen Oosterhuis, Kerstin Wunderlich, Evelien M. Bunnik, Melissa Bhaggoe, Satish Boedhoe, Santusha Karia, Renske D.M. Steenbergen, Leontien Bosch, Jan Serroyen, Sarah Janssen, Hanneke Schuitemaker, Jort Vellinga, Gert Scheper, Roland Zahn, Jer
    International Journal of Cancer.2017; 141(2): 393.     CrossRef
  • Immune responses and protective efficacy of a recombinant swinepox virus expressing HA1 against swine H1N1 influenza virus in mice and pigs
    Jiarong Xu, Dongyan Huang, shichao Liu, Huixing Lin, Haodan Zhu, Bao Liu, Chengping Lu
    Vaccine.2012; 30(20): 3119.     CrossRef
  • Immune responses and protection efficacy of a recombinant swinepox virus expressing HA1 against swine H3N2 influenza virus in mice and pigs
    Jiarong Xu, Dongyan Huang, Shichao Liu, Huixing Lin, Haodan Zhu, Bao Liu, Chengping Lu
    Virus Research.2012; 167(2): 188.     CrossRef
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Identification of CLP36 as a Tumor Antigen that Induces an Antibody Response in Pancreatic Cancer
Su-Hyung Hong
Cancer Res Treat. 2005;37(1):71-77.   Published online February 28, 2005
DOI: https://doi.org/10.4143/crt.2005.37.1.71
AbstractAbstract PDFPubReaderePub
Purpose

Pancreatic cancer has a poor prognosis, due in part to the lack of an effective approach for its early detection. The identification of tumor antigens potentially provides a means for the early diagnosis. The purpose of this study was to use a proteomic approach for the identification of proteins that commonly induce a humoral response in patients with pancreatic cancer.

Materials and Methods

Proteins from the pancreatic adenocarcinoma cell line, BxPC3, were subjected to two-dimensional polyacrylamide gel electrophoresis, followed by Western blot analysis, where individual sera were tested for autoantibodies. Sera from 36 patients with pancreatic adenocarcinoma, and 68 from control groups (14 from lung adenocarcinoma, 19 from colon adenocarcinoma and 35 from healthy subjects) were analyzed. CLP36 expression was evaluated by immunohistochemical analysis and real-time PCR. The cellular localization of CLP36 as an autoantigen was investigated by Western blot analysis.

Results

The autoantibody was detected against a protein, identified by mass spectrometry as CLP36, in 14 of the 36 sera (38.9%) from patients with a pancreatic adenocarcinoma, and 3 of the 68 controls (4.4%). Immunohistochemical analysis of CLP36 in a tissue array demonstrated diffuse and consistent immunoreactivity in the pancreatic adenocarcinomas. The levels of CLP36 mRNA were highest in the pancreatic cancer cell lines of the different cells analyzed. The molecular weight of the protein displayed in the membrane-rich fraction was larger than that in the cytosolic fraction, which is likely attributable to a post-translational modification.

Conclusion

CLP36 was identified as a tumor autoantigen inducing a humoral immune response in pancreatic adenocarcinomas. More detailed studies need to be undertaken to understand whether the humoral response by CLP36 is tumor-specific.

Citations

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  • PDZ and LIM Domain-Encoding Genes: Their Role in Cancer Development
    Xinyuan Jiang, Zhiyong Xu, Sujing Jiang, Huan Wang, Mingshu Xiao, Yueli Shi, Kai Wang
    Cancers.2023; 15(20): 5042.     CrossRef
  • miR-187/PDLIM1 Gets Involved in Gastric Cancer Progression and Cisplatin Sensitivity of Cisplatin by Mediating the Hippo-YAP Signaling Pathway
    Yeru Tan, Yuehua Li, Hongbo Zhu, Xiaoping Wu, Kai Mei, Pian Li, Qiao Yang, Zhongjie Shi
    Journal of Oncology.2022; 2022: 1.     CrossRef
  • Serum Anti-PDLIM1 Autoantibody as Diagnostic Marker in Ovarian Cancer
    Cuipeng Qiu, Yaru Duan, Bofei Wang, Jianxiang Shi, Peng Wang, Hua Ye, Liping Dai, Jianying Zhang, Xiao Wang
    Frontiers in Immunology.2021;[Epub]     CrossRef
  • Autoantibodies against TYMS and PDLIM1 proteins detected as circulatory signatures in Indian breast cancer patients
    Prachi Gupta, Shankar Suman, Manisha Mishra, Sanjay Mishra, Nidhi Srivastava, Vijay Kumar, Pradhyumna Kumar Singh, Yogeshwer Shukla
    PROTEOMICS - Clinical Applications.2016; 10(5): 564.     CrossRef
  • Identification of Novel Gene Targets and Functions of p21-Activated Kinase 1 during DNA Damage by Gene Expression Profiling
    Mona Motwani, Da-Qiang Li, Anelia Horvath, Rakesh Kumar, Wei-Guo Zhu
    PLoS ONE.2013; 8(8): e66585.     CrossRef
  • Immunogenicity of SEREX-identified antigens and disease outcome in pancreatic cancer
    A. Heller, I. Zörnig, T. Müller, K. Giorgadze, C. Frei, T. Giese, F. Bergmann, J. Schmidt, J. Werner, M. W. Buchler, D. Jaeger, N. A. Giese
    Cancer Immunology, Immunotherapy.2010; 59(9): 1389.     CrossRef
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