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Singh S, Gupta A, Singh N, Sengupta PS, Panda SK, Sharma S. Genotyping, in silico screening and molecular dynamics simulation of SNPs of MGMT and ERCC1 gene in lung cancer patients treated with platinum-based doublet chemotherapy. J Biomol Struct Dyn 2023:1-20. [PMID: 37771161 DOI: 10.1080/07391102.2023.2261052] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/02/2023] [Indexed: 09/30/2023]
Abstract
Lung cancer, the leading cause of death worldwide, arises from an intricate combination of genetic and environmental factors. Genetic variations can influence the chemotherapeutic response of lung cancer patients in DNA repair genes. This study examines the response to platinum-based drugs among lung cancer patients of North Indian descent who possess genetic variations in the MGMT and ERCC1 genes. P CR-RFLP method was used for genotypic analysis. MedCalc statistical software was used to calculate odds ratios and Median Survival Time (MST). GROMACS software was used to perform Molecular dynamic simulation. ADCC Patients revealed a significant association with MGMT in the heterozygous genotype (HR= 1.56, p=0.02) and also with ERCC1 in both mutant and combined variants (HR= 1.25, p=0.01; HR=0.78, p=0.03). SQCC subjects harbouring ERCC1 polymorphism also reported a 2-fold increase in hazard ratio and a corresponding decrease in survival time for heterozygous and combined variants (HR= 2.55, p=0.02; HR 2.33, p=0.01, respectively). MD simulation results demonstrate a lower RMSD, stable radius of gyration, and lower RMSF, indicating the mutated MGMT protein is more stable than the wild. Further, the docking score for DNA-Wild and DNA-L84F mutants are -201.6 and -131.8, respectively. MD Simulation of the complexes further validated the results. Our study concludes that MGMT and ERCC1 polymorphisms are associated with decreased overall survival. Further, computational analysis of MGMT (rs12917) polymorphism revealed that mutated MGMT cannot bind properly to the DNA and hence cannot properly repair DNA, resulting in lower overall survival.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sidhartha Singh
- Department of Biosciences and Bioengineering, DY Patil International University, Akurdi, Maharashtra, India
| | - Anu Gupta
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, Punjab, India
| | - Navneet Singh
- Department of Pulmonary Medicine, Post Graduate Institute of Medical Education & Research (PGIMER), Chandigarh, India
| | - Parth Sarthi Sengupta
- Department of Biosciences and Bioengineering, DY Patil International University, Akurdi, Maharashtra, India
| | - Saroj Kumar Panda
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Berhampur, India
| | - Siddharth Sharma
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, Punjab, India
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Wu Y, Liu M, Zhang R, Sun M, Wei Q, Zhao K, Wang M. Potentially functional genetic variants of the Notch signaling pathway genes predict survival of Chinese patients with Esophageal Squamous Cell Carcinoma. J Gene Med 2022; 24:e3438. [PMID: 35821600 DOI: 10.1002/jgm.3438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/20/2022] [Accepted: 05/29/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The Notch signaling pathway is involved in progression of esophageal squamous cell carcinoma (ESCC), but the roles of single nucleotide polymorphisms (SNPs) of the Notch signaling pathway genes in the process remain unknown. METHODS The present study included 1,009 patients with histopathologically diagnosed ESCC at Fudan University Shanghai Cancer Center (FUSCC). The two-stage multivariate Cox proportional hazards regression analysis was used to estimate associations between 13,248 SNPs in 103 Notch signaling pathway genes and overall survival of the patients. RESULTS We found that overall survival of the patients was significantly associated with genotypes of HDAC9 rs1729318 (AT+TT vs AA: HR = 1.44, 95% CI = 1.16-1.80, Pcombined = 0.001) and HDAC9 rs1339555498 (GT +TT vs GG: HR = 1.38, 95% CI = 1.10-1.74, Pcombined = 0.005). Further receiver operator characteristic (ROC) curve analysis indicated that the model with both available clinical factors and these two SNPs improved the area under the ROC curve, compared with the model with clinical factors only (1-year: 0.66 vs. 0.64, P = 0.034). Additional expression quantitative trait loci (eQTL) analysis showed that the rs1729318 T variant genotypes were associated with increased mRNA expression levels of HDAC9 in normal esophageal muscular tissue (P = 0.003). CONCLUSIONS The results suggest that these two potential functional SNPs on HDAC9 may serve as biomarkers for predicting survival of ESCC patients. However, further studies are needed to confirm these findings.
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Affiliation(s)
- Yuanna Wu
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, China
| | - Ming Liu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Shanghai Key Laboratory of Radiation Oncology, Shanghai, China
| | - Ruoxin Zhang
- Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, China.,School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Menghong Sun
- Department of Pathology, Tissue Bank, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Qingyi Wei
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina, USA.,Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina, USA
| | - Kuaile Zhao
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, China.,Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Mengyun Wang
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, China
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Wang Y, Li J, Shen C, Wu Y, Che G. Clinical Role of Excision Repair Cross-Complementing 1 Gene Expression in Resected Esophageal Squamous Cell Carcinoma: A Meta-Analysis. Dig Dis Sci 2020; 65:2264-2271. [PMID: 31713119 DOI: 10.1007/s10620-019-05941-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/05/2019] [Indexed: 02/08/2023]
Abstract
AIMS To explore the relationship between excision repair cross-complementing 1 (ERCC1) gene expression and clinical pathological parameters and prognosis of esophageal squamous cell carcinoma (ESCC) patients who received the surgical therapy. METHODS To identify relevant articles, a systematic literature retrieval was conducted in several databases, including the Embase, Web of Science, Cochrane Library, PubMed, VIP, Wanfang, and CNKI. The association of ERCC1 gene expression with clinicopathological characteristics and survival was assessed by the pooled relative risk (RR) and hazard ratio (HR) with the corresponding 95% confidence interval (CI), respectively. Sensitivity analysis was conducted to assess the stability of pooled results. Begg's funnel plot and Egger's test were applied to detect potential publication bias. RESULTS A total of nine studies involving 746 patients were included in our meta-analysis, and all patients were from Asian countries, including China, Korea, and Japan. The results indicated that ERCC1 gene expression was significantly associated with lymph node metastasis (RR = 1.30, 95% CI 1.11-1.53; P = 0.002), higher TNM stage (RR = 1.23, 95% CI 1.06-1.43; P = 0.006), worse overall survival (HR = 2.40, 95% CI 1.32-4.37; P < 0.001), and disease-free survival (HR = 1.67, 95% CI 1.15-2.41; P = 0.007). Sensitivity analysis manifested that the pooled results were stable and no significant publication bias was observed. CONCLUSIONS ERCC1 gene expression is significantly related to tumor stage and prognosis in resected ESCC patients from Asian countries. More prospective studies with larger samples are needed to testify our findings.
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Affiliation(s)
- Yan Wang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Jialong Li
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Cheng Shen
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Yanming Wu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China
| | - Guowei Che
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Guoxuexiang No. 37, Chengdu, 610041, China.
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Wang J, Wang Q, Wei B, Zhou Y, Qian Z, Gao Y, Chen X. Intronic polymorphisms in genes LRFN2 (rs2494938) and DNAH11 (rs2285947) are prognostic indicators of esophageal squamous cell carcinoma. BMC MEDICAL GENETICS 2019; 20:72. [PMID: 31053115 PMCID: PMC6499982 DOI: 10.1186/s12881-019-0796-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 03/31/2019] [Indexed: 12/14/2022]
Abstract
Background Genome wide association study (GWAS) has become the major means to screen for the genetic variants associated with risk and prognosis of different diseases. A recent GWAS has discovered three novel intronic single nucleotide polymorphisms in genes LRFN2 (rs2494938), DNAH11 (rs2285947) and PLCXD2 (rs2399395) that are associated with altered risk of esophageal squamous cell carcinoma (ESCC) among Han Chinese populations. However, the prognostic significance of these variations in ESCC remains unclear. Methods To investigate the association of three novel single nucleotide polymorphisms (rs2494938, rs2285947, rs2399395) with the prognosis of ESCC patients, we recruited 287 ESCC patients treated with surgical resection and evaluated the potential significance of the three polymorphisms through Kaplan-Meier survival analysis, log-rank test, and Cox proportional hazards regression models. Results The ESCC patients carrying genotype AA at rs2494938 had worse survival and genotype GG at 2285947 had better prognosis (Log-rank P = 0.003 and Log-rank P = 0.037, respectively). In addition, rs2494938 at 6p21.1 was independently associated with overall survival of ESCC patients in recessive model [AA vs. GG/GA, HR = 3.12, 95% CI = 1.43–6.83, P = 0.004], rs2285947 at 7p15.3 was independently associated with overall survival of ESCC patients in both dominant model [AA/GA vs. GG, HR = 1.59, 95% CI = 1.02–2.49, P = 0.042] and additive model [AA vs. GA vs. GG, HR = 1.45, 95% CI = 1.05–2.01, P = 0.025]. Conclusions This study demonstrated that the polymorphisms rs2494938 at 6p21.1 and rs2285947 at 7p15.3 may serve as independent prognostic biomarkers for ESCC, implying the potential biological role of their related genes (LRFN2 and DNAH11) in the process of ESCC development. Electronic supplementary material The online version of this article (10.1186/s12881-019-0796-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jiru Wang
- Department of Medical Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, People's Republic of China
| | - Qiuzi Wang
- Department of Medical Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, People's Republic of China
| | - Bin Wei
- Department of Medical Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, People's Republic of China
| | - Yu Zhou
- Department of Medical Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, People's Republic of China
| | - Zhaoye Qian
- Department of Medical Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, People's Republic of China
| | - Yong Gao
- Department of Medical Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, People's Republic of China.
| | - Xiaofei Chen
- Department of Medical Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, People's Republic of China.
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Han L, Li YJ, Zhang WD, Song PP, Li H, Li S. Clinical significance of tumor cells in the peripheral blood of patients with esophageal squamous cell carcinoma. Medicine (Baltimore) 2019; 98:e13921. [PMID: 30732126 PMCID: PMC6380864 DOI: 10.1097/md.0000000000013921] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Circulating tumor cells (CTCs) are suspected of predicting the prognosis of malignant tumor, but there are few relevant reports specific to esophageal squamous cell carcinoma (ESCC). This study investigated the clinical significance of CTCs in patients with ESCC.Sixty patients with ESCC were enrolled, from whom CTCs had been tested by our team previously. Peripheral blood samples were obtained from these patients before treatment; and CTCs were assayed by isolation by size of epithelial tumor cells (ISET). Associations between the presence of CTCs and patients' clinicopathological parameters and clinical outcomes were analyzed.CTCs were detected in 20 patients (33.3%), who experienced significantly shorter progression-free survival (PFS) than did the CTC-negative patients. Overall, PFS was negatively associated with the number of CTCs. Multivariate analyses showed that a CTC count >2 was a strong independent prognostic indicator of tumor recurrence (hazard ratio [HR] 5.63; 95% confidence interval [CI] 1.77-17.89; P = .003). In the subgroup of 50 patients who underwent R0 resection and postoperative adjuvant radiotherapy or chemotherapy, CTC was a strong, independent, and prognostic indicator of tumor recurrence (HR 10.70; 95% CI, 1.40-81.91; P = .022). The number of CTCs correlated with the T stage (r = 0.26, P = .043) but not with the N or M stage. For subgroups in stages II or I-IIIB or T3 or T3 + T4, the PFS of patients with CTCs > 1 or > 2 was significantly shorter than that of the patients with CTCs ≤ 1 or CTCs ≤ 2. In the stage III or T3 + T4 groups, the PFS of patients with CTCs > 0 was significantly shorter than that of patients with CTC = 0.This is the first study to report that the CTC detected by ISET is an independent and prognostic indicator of patients' outcome in ESCC. Consideration of CTCs may improve the accuracy of preoperative staging in ESCC.
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Affiliation(s)
- Lu Han
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences
- Department of Hepatobiliary Surgery, Shandong Academy of Medical Sciences, Shandong Cancer Hospital Affiliated to Shandong University
| | - Yun-Jie Li
- Equipment Management Office, Jinan Central Hospital Affiliated to Shandong University
| | - Wei-Di Zhang
- Department of Thoracic Surgery, Shandong Academy of Medical Sciences, Shandong Cancer Hospital Affiliated to Shandong University
| | - Ping-Ping Song
- Department of Thoracic Surgery, Shandong Academy of Medical Sciences, Shandong Cancer Hospital Affiliated to Shandong University
| | - Hao Li
- Department of Interventional Radiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, P. R. China
| | - Sheng Li
- Department of Hepatobiliary Surgery, Shandong Academy of Medical Sciences, Shandong Cancer Hospital Affiliated to Shandong University
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Kojima H, Okumura T, Yamaguchi T, Miwa T, Shimada Y, Nagata T. Enhanced cancer stem cell properties of a mitotically quiescent subpopulation of p75NTR-positive cells in esophageal squamous cell carcinoma. Int J Oncol 2017; 51:49-62. [PMID: 28534989 PMCID: PMC5467780 DOI: 10.3892/ijo.2017.4001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 04/27/2017] [Indexed: 12/14/2022] Open
Abstract
Mitotically quiescent cancer stem cells (CSCs) possess higher malignant potential than other CSCs, indicating their higher contribution to therapeutic resistance than that of other CSCs. In esophageal squamous cell carcinoma (ESCC), p75 neurotrophin receptor (p75NTR) is expressed in a candidate CSC population showing high tumorigenicity and chemoresistance. In the present study, we isolated and characterized quiescent CSCs population in ESCC based on p75NTR expression and cell cycle status. Expression of p75NTR and Ki-67 in ESCC cell lines (KYSE cells) and surgically resected ESCC specimens was detected by performing immunocytochemical analysis. p75NTR-positive KYSE cells were fractionated into quiescent and proliferating cells by performing flow cytometry with a fluorescent DNA-staining dye to determine their CSC phenotype. Immunocytochemical analysis showed that 21.8 and 36.5% of the p75NTR-positive cells were Ki-67-negative (G0), which accounted for 11.4 and 15.7% of cells in KYSE-30 and KYSE-140 cell lines, respectively. Flow cytometric cell sorting showed that p75NTR-positive cells in the G0-G1 phase (p75NTR-positive/G0-1 cells) but not in the S-G2-M phase (p75NTR-positive/S-G2-M cells) showed strong expression of stem cell-related genes Nanog, BMI-1, and p63; high colony formation ability; high tumorigenicity in a mouse xenograft model; and strong chemoresistance against cisplatin because of the expression of drug resistance genes ABCG2 and ERCC1. Label-retention assay showed that 3.4% p75NTR-positive cells retained fluorescent cell-tracing dye, but p75NTR-negative cells did not. Immunohistochemical analysis of ESCC specimens showed p75NTR expression in 39 of 95 (41.1%) patients, with a median of 13.2% (range, 3.0-80.1%) p75NTR-positive/Ki-67-negative cells, which were found to be associated with poorly differentiated histology. Our results suggest that p75NTR-positive/G0-1 cells represent quiescent CSCs in ESCC and indicate that these cells can be used as targets to investigate molecular processes regulating CSC phenotype and to develop novel therapeutic strategies.
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Affiliation(s)
- Hirofumi Kojima
- Department of Surgery and Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama city, Toyama 930-0194, Japan
| | - Tomoyuki Okumura
- Department of Surgery and Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama city, Toyama 930-0194, Japan
| | - Tetsuji Yamaguchi
- Department of Surgery and Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama city, Toyama 930-0194, Japan
| | - Takeshi Miwa
- Department of Surgery and Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama city, Toyama 930-0194, Japan
| | - Yutaka Shimada
- Department of Nanobio Drug Discovery, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Takuya Nagata
- Department of Surgery and Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama city, Toyama 930-0194, Japan
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Lu Y, Yan C, Du J, Ji Y, Gao Y, Zhu X, Yu F, Huang T, Dai J, Ma H, Jiang Y, Chen J, Shen H, Jin G, Yin Y, Hu Z. Genetic variants affecting telomere length are associated with the prognosis of esophageal squamous cell carcinoma in a Chinese population. Mol Carcinog 2016; 56:1021-1029. [PMID: 27597395 DOI: 10.1002/mc.22567] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 08/22/2016] [Accepted: 09/04/2016] [Indexed: 02/02/2023]
Abstract
Telomeres are essential for maintaining chromosomal stability and are crucial in tumor progression. Previous studies have explored the associations between telomere length and cancer prognosis, but the findings are inconclusive. Genome-wide association studies have identified several genetic variants associated with telomere length in Caucasians. However, the roles of telomere length and related genetic variants on esophageal squamous cell carcinoma (ESCC) prognosis are largely unknown. Therefore, we conducted a case-cohort study with 431 ESCC patients to assess the associations between relative telomere length (RTL), eight known telomere length related variants and the overall survival of ESCC in Chinese population. We found that as compared with the reference group, patients in the fifth (the longest) quintile had a significantly better prognosis [(adjusted hazard ratio (HR) = 0.58, 95% confidence interval (CI) = 0.34-0.98, P = 0.041]. Furthermore, A allele of rs2736108 was significantly associated with both the increased RTL (P = 0.048) and the better prognosis of ESCC (adjusted HR = 0.55, 95%CI = 0.38-0.79, P = 1.31 × 10-3 ). Mediation analysis indicated that the effect of rs2736108 on ESCC prognosis was partly explained by RTL (1.99%). Stepwise Cox proportional hazard analysis suggested that rs2736108 played an important protective role in ESCC prognosis (HR = 0.57, 95%CI = 0.40-0.81, P = 1.97 × 10-3 ). Our findings provide evidence that prolonged telomere length is a protective factor for ESCC patients' survival and the known telomere length related genetic variant rs2736108 can contribute to the prognosis of ESCC as well in Chinese population. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Yue Lu
- Department of Radiotherapy, the Affiliated Cancer Hospital of Jiangsu Province of Nanjing Medical University, Nanjing, China
| | - Caiwang Yan
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jiangbo Du
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yong Ji
- Department of Cardiothoracic Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Yong Gao
- Department of Medical Oncology, the Affiliated Huaian First People's Hospital of Nanjing Medical University, Huaian, China
| | - Xun Zhu
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Fei Yu
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Tongtong Huang
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Juncheng Dai
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hongxia Ma
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yue Jiang
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jiaping Chen
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Guangfu Jin
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yongmei Yin
- Department of Cardiothoracic Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
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Bahamon BN, Gao F, Danaee H. Development and Validation of an ERCC1 Immunohistochemistry Assay for Solid Tumors. Arch Pathol Lab Med 2016; 140:1397-1403. [PMID: 27610644 DOI: 10.5858/arpa.2016-0006-oa] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT - Excision repair cross-complementation 1 (ERCC1) is a key enzyme in nuclear excision repair pathway and has a critical role in helping remove DNA adducts caused by cross-linking agents, such as platinum-containing cancer chemotherapies and other DNA-damaging therapeutic modalities. ERCC1 expression, evaluated by techniques such as immunohistochemistry, has been associated with clinical response; ERCC1+ tumors are more resistant to cisplatin treatment than are ERCC1- tumors. Although several immunohistochemistry, anti-ERCC1 antibodies are available, the 8F1 clone, in particular, has been used in many studies. Recent evidence has suggested that the 8F1 antibody cross-reacts with at least one other protein, raising concerns about the specificity of this clone. OBJECTIVE - To design an immunohistochemistry assay to detect ERCC1 levels that show dynamic range and consistent analytic performance. DESIGN - Two different primary antibodies to ERCC1, clones 4F9 and D6G6, were evaluated on formalin-fixed, paraffin-embedded tissue. We then performed a fit-for-purpose assay validation with the 4F9 clone, which included sensitivity assessment across several solid tumor types and evaluation of analytic parameters, such as precision and reproducibility. RESULTS - The 4F9 clone was consistently superior to the D6G6 clone in the optimization phase. A range of expression was seen in ovarian, head and neck, non-small cell lung, and esophageal cancer samples when tested with the 4F9 clone. The antibody showed acceptable reproducibility (31.02%) and precision (16.06%). CONCLUSIONS - This assay can be used to assess ERCC1 levels during clinical studies of patient tumors from a variety of tumor types.
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Affiliation(s)
- Brittany N Bahamon
- From the Departments of Translational Medicine (Ms Bahamon and Dr Danaee) and Biostatistics (Dr Gao), Takeda Pharmaceuticals Inc, Cambridge, Massachusetts. Dr Gao is now with the Department of Biostatistics, Biogen, Cambridge
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Mo J, Luo M, Cui J, Zhou S. Prognostic value of ERCC1 and ERCC2 gene polymorphisms in patients with gastric cancer receiving platinum-based chemotherapy. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:15065-15071. [PMID: 26823845 PMCID: PMC4713631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 09/28/2015] [Indexed: 06/05/2023]
Abstract
We conducted a prospective study to analyze whether ERCC1 rs11615 and rs3212986 and ERCC2 rs13181 and rs1799793 gene polymorphisms could serve as potential biomarkers for the prognosis of gastric cancer. A total of 228 patients with pathologically proven gastric cancer and receiving platinum-based chemotherapy were recruited from our hospital between October 2009 and October 2011. The ERCC1 rs11615 and rs3212986 and ERCC2 rs13181 and rs1799793 polymorphisms were genotyped using the polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) assay. Conditional logistic regression analysis revealed that patients carrying the CA and AA genotypes of ERCC1 rs3212986 polymorphism showed a poorer response to chemotherapy compared to the CC genotype (CA vs. CC: OR = 0.28, 95% CI = 0.06-0.98, P = 0.04; AA vs. CC: OR = 0.49, 95% CI = 0.06-0.98, P = 0.01). Moreover, the CA+AA genotype of ERCC1 rs3212986 polymorphism showed a significantly poorer response to chemotherapy (CA+AA vs. CC: OR = 0.49, 95% CI = 0.27-0.90). Patients with the AA genotype of ERCC1 rs3212986 polymorphism had a longer overall survival time when compared with the CC genotype (34.91 months vs. 51.19 months, log-rank P = 0.003). The AA genotype of ERCC1 rs3212986 polymorphism in gastric cancer patients was correlated with a higher risk of death from varying causes by the Cox proportional hazards model, compared to the CC genotype (HR = 6.19, 95% CI = 1.42-30.60). In conclusion, the ERCC1 rs3212986 polymorphism was found to influence the response to chemotherapy and overall survival of gastric cancer patients.
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Affiliation(s)
- Juanmei Mo
- Department of Oncology, No. 303 Hospital of Chinese People’s Liberation ArmyNanning, China
| | - Min Luo
- Department of Oncology, No. 303 Hospital of Chinese People’s Liberation ArmyNanning, China
| | - Jiandong Cui
- Department of Oncology, No. 303 Hospital of Chinese People’s Liberation ArmyNanning, China
| | - Shaozhang Zhou
- Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical UniversityNanning, China
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Shi J, Liu Y, Liu J, Zhou J. Hsa-miR-449a genetic variant is associated with risk of gastric cancer in a Chinese population. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:13387-13392. [PMID: 26722545 PMCID: PMC4680490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 08/21/2015] [Indexed: 06/05/2023]
Abstract
Gastric cancer (GC) is one of the most common malignancies and one of the major causes of cancer-related deaths worldwide. In the present study, we investigated the association between miR-449a rs112310158 SNP and GC risk. Our findings revealed that a variant GG genotype increased the risk of occurrence of GC compared to a wild type AA genotype (OR = 2.542, 95% CI: 1.304-4.954, P = 0.005). Specifically, the G allele reduced the risk of occurrence of cervical cancer in women compared to the A allele (OR = 1.279, 95% CI: 1.012-1.617, P = 0.043). In conclusion, our findings suggest that miR-449a rs112310158 is a genetic risk factor for GC.
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Affiliation(s)
- Jian Shi
- Emzymological Institute, The Affiliated Hospital of Nantong UniversityNantong 226001, Jiangsu, China
| | - Yangchen Liu
- Department of Radiotherapy, Taixing People’s HospitalTaixing 225400, Jiangsu, China
| | - Jun Liu
- Department of Oncology, Taixing People’s HospitalTaixing 225400, Jiangsu, China
| | - Juan Zhou
- Department of Oncology, Taixing People’s HospitalTaixing 225400, Jiangsu, China
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