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Zou T, Liu JY, Qin Q, Guo J, Zhou WZ, Li XP, Zhou HH, Chen J, Liu ZQ. Role of rs873601 Polymorphisms in Prognosis of Lung Cancer Patients Treated with Platinum-Based Chemotherapy. Biomedicines 2023; 11:3133. [PMID: 38137354 PMCID: PMC10741124 DOI: 10.3390/biomedicines11123133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND Lung cancer is still the most lethal malignancy in the world, according to the report of Cancer Statistics in 2021. Platinum-based chemotherapy combined with immunotherapy is the first-line treatment in lung cancer patients. However, the 5-year survival rate is always affected by the adverse reactions and drug resistance caused by platinum-based chemotherapy. DNA damage and repair system is one of the important mechanisms that can affect the response to chemotherapy and clinical outcomes in lung cancer patients. OBJECTIVE The objective of this study is to find the relationship between the polymorphisms of DNA repair genes with the prognosis of platinum-based chemotherapy in lung cancer patients. PATIENTS AND METHODS We performed genotyping in 17 single nucleotide polymorphisms (SNPs) of Excision Repair Cross-Complementation group (ERCC) genes and X-ray Repair Cross-Complementing (XRCC) genes of 345 lung cancer patients via Sequenom MassARRAY. We used Cox proportional hazard models, state, and plink to analyze the associations between SNPs and the prognosis of lung cancer patients. RESULTS We found that the ERCC5 rs873601 was associated with the overall survival time in lung cancer patients treated with platinum-based chemotherapy (p = 0.031). There were some polymorphisms that were related to the prognosis in specific subgroups of lung cancer. Rs873601 showed a great influence on the prognosis of patients more than 55 years, Small Cell Lung Cancer (SCLC), and smoking patients. Rs2444933 was associated with prognosis in age less than 55 years, SCLC, metastasis, and stage III/IV/ED patients. Rs3740051 played an important role in the prognosis of SCLC and metastasis patients. Rs1869641 was involved in the prognosis of SCLC patients. Rs1051685 was related to the prognosis in non-metastasis patients. CONCLUSION The ERCC5 rs873601 (G>A) was a valuable biomarker for predicting the prognosis in lung cancer patients treated with platinum-based chemotherapy.
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Affiliation(s)
- Ting Zou
- Department of Pharmacy, National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha 410008, China; (T.Z.); (Q.Q.); (J.G.); (W.-Z.Z.); (X.-P.L.)
- Department of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya Hospital, Central South University, Changsha 410078, China;
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- International Science and Technology Innovation Cooperation Base for Early Clinical Trials of Biological Agents in Hunan Province, Changsha 410008, China
| | - Jun-Yan Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, China;
| | - Qun Qin
- Department of Pharmacy, National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha 410008, China; (T.Z.); (Q.Q.); (J.G.); (W.-Z.Z.); (X.-P.L.)
- International Science and Technology Innovation Cooperation Base for Early Clinical Trials of Biological Agents in Hunan Province, Changsha 410008, China
| | - Jie Guo
- Department of Pharmacy, National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha 410008, China; (T.Z.); (Q.Q.); (J.G.); (W.-Z.Z.); (X.-P.L.)
- International Science and Technology Innovation Cooperation Base for Early Clinical Trials of Biological Agents in Hunan Province, Changsha 410008, China
| | - Wen-Zhi Zhou
- Department of Pharmacy, National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha 410008, China; (T.Z.); (Q.Q.); (J.G.); (W.-Z.Z.); (X.-P.L.)
- International Science and Technology Innovation Cooperation Base for Early Clinical Trials of Biological Agents in Hunan Province, Changsha 410008, China
| | - Xiang-Ping Li
- Department of Pharmacy, National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha 410008, China; (T.Z.); (Q.Q.); (J.G.); (W.-Z.Z.); (X.-P.L.)
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya Hospital, Central South University, Changsha 410078, China;
| | - Juan Chen
- Department of Pharmacy, National Institution of Drug Clinical Trial, Xiangya Hospital, Central South University, Changsha 410008, China; (T.Z.); (Q.Q.); (J.G.); (W.-Z.Z.); (X.-P.L.)
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zhao-Qian Liu
- Department of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Xiangya Hospital, Central South University, Changsha 410078, China;
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
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Aboul Enein AA, Khaled IAA, Khorshied MM, Abdel-Aziz AO, Zahran N, El Saeed AM, Shousha HI, Abdel Rahman HA. Genetic variations in DNA-repair genes (XRCC1, 3, and 7) and the susceptibility to hepatocellular carcinoma in a cohort of Egyptians. J Med Virol 2020; 92:3609-3616. [PMID: 32281666 DOI: 10.1002/jmv.25873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 01/01/2023]
Abstract
Chronic hepatitis C (CHC) is a worldwide etiology of chronic hepatic insult particularly in Egypt. DNA-repair systems are responsible for maintaining genomic integrity by countering threats posed by DNA lesions. Deficiency in the repair capacity due to genetic alterations in DNA-repair genes can lead to genomic instability and increased risk of cancer development. The present work aimed at studying the possible association between XRCC1-G28152A (rs25487), XRCC3-C18067T (rs861539), and XRCC7-G6721T (rs7003908) single nucleotide polymorphisms (SNPs) and the susceptibility to hepatocellular carcinoma (HCC) in Egyptian population. The study was conducted on 100 newly diagnosed HCC patients and 100 age- and sex-matched healthy controls. Laboratory workup revealed that all HCC patients have chronic hepatitis C viral infection. Genotyping of the studied SNPs was performed by real-time PCR. The heteromutant genotype of XRCC1 (GA) conferred an almost two-fold increased risk of HCC (OR , 2.35; 95% CI, 1.33-4.04). Regarding XRCC7, the heteromutant (TG) genotype conferred a two-fold increased risk of HCC (OR , 2.17; 95% CI, 1.23-3.82). Coinheritance of the polymorphic genotypes of XRCC1 and 7 was significantly higher in HCC cases than controls and was associated with an 11-fold increased risk of HCC (OR , 11.66; 95% CI, 2.77-49.13). The frequency of XRCC3 polymorphic genotypes in HCC patients was close to that of the controls.
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Affiliation(s)
- Azza Ahmed Aboul Enein
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Iman Abdel Aziz Khaled
- Department of Clinical and Chemical Pathology, Theoder Bilharz Research Institute, Cairo, Egypt
| | - Mervat Mamdooh Khorshied
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Nariman Zahran
- Department of Clinical and Chemical Pathology, Theoder Bilharz Research Institute, Cairo, Egypt
| | - Asmaa Mohamed El Saeed
- Department of Clinical and Chemical Pathology, Theoder Bilharz Research Institute, Cairo, Egypt
| | - Hend Ibrahim Shousha
- Department of Tropical Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hala Aly Abdel Rahman
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
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Genetic Polymorphisms in Inflammatory and Other Regulators in Gastric Cancer: Risks and Clinical Consequences. Curr Top Microbiol Immunol 2019; 421:53-76. [PMID: 31123885 DOI: 10.1007/978-3-030-15138-6_3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Helicobacter pylori infection is associated with the development of a chronic inflammatory response, which may induce peptic ulcers, gastric cancer (GC), and mucosa-associated lymphoid tissue (MALT) lymphoma. Chronic H. pylori infection promotes the genetic instability of gastric epithelial cells and interferes with the DNA repair systems in host cells. Colonization of the stomach with H. pylori is an important cause of non-cardia GC and gastric MALT lymphoma. The reduction of GC development in patients who underwent anti-H. pylori eradication schemes has also been well described. Individual susceptibility to GC development depends on the host's genetic predisposition, H. pylori virulence factors, environmental conditions, and geographical determinants. Biological determinants are urgently sought to predict the clinical course of infection in individuals with confirmed H. pylori infection. Possible candidates for such biomarkers include genetic aberrations such as single-nucleotide polymorphisms (SNPs) found in various cytokines/growth factors (e.g., IL-1β, IL-2, IL-6, IL-8, IL-10, IL-13, IL-17A/B, IFN-γ, TNF, TGF-β) and their receptors (IL-RN, TGFR), innate immunity receptors (TLR2, TLR4, CD14, NOD1, NOD2), enzymes involved in signal transduction cascades (PLCE1, PKLR, PRKAA1) as well as glycoproteins (MUC1, PSCA), and DNA repair enzymes (ERCC2, XRCC1, XRCC3). Bacterial determinants related to GC development include infection with CagA-positive (particularly with a high number of EPIYA-C phosphorylation motifs) and VacA-positive isolates (in particular s1/m1 allele strains). The combined genotyping of bacterial and host determinants suggests that the accumulation of polymorphisms favoring host and bacterial features increases the risk for precancerous and cancerous lesions in patients.
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Namazi A, Forat-Yazdi M, Jafari M, Farahnak S, Nasiri R, Foroughi E, Abolbaghaei SM, Neamatzadeh H. ASSOCIATION OF INTERLEUKIN-10 -1082 A/G (RS1800896) POLYMORPHISM WITH SUSCEPTIBILITY TO GASTRIC CANCER: META-ANALYSIS OF 6,101 CASES AND 8,557 CONTROLS. ARQUIVOS DE GASTROENTEROLOGIA 2018; 55:33-40. [PMID: 29561974 DOI: 10.1590/s0004-2803.201800000-18] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 09/11/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND The promoter -1082 A/G (rs1800896) polymorphism of Interleukin-10 (IL-10) gene have been widely reported and considered to have a significant role on gastric cancer risk, but the results are inconsistent. OBJECTIVE To clarify the association, we conducted a meta-analysis to investigate the associations IL-10 -1082 A/G polymorphism with gastric cancer. METHODS Eligible articles were identified by searching databases including PubMed, Web of Science, and Google Scholar up to August 03, 2017. Odds ratios (OR) with corresponding 95% confidence intervals (CIs) were used to assess the association. RESULTS A total of 30 case-control studies with 6,101 cases and 8,557 controls were included in this meta-analysis. Overall, a significant association between IL-10 -1082 A/G polymorphism and gastric cancer risk was observed under the allele model (G vs A: OR=1.305, 95% CI=1.076-1.584; P=0.007), heterozygote model and (GA vs AA: OR=1.252, 95% CI=1.252-1.054; P=0.011) and dominant model (GG+GA vs AA: OR=1.264, 95% CI=1.053-1.516; P=0.012). In the subgroup analysis by ethnicity, increased gastric cancer risk were found in Asians under the allele model (G vs A: OR=1.520, 95% CI=1.172-1.973; P=0.002), homozygote model (GG+GA vs AA: OR=1.571, 95% CI=1.023-2.414; P= 0.039), heterozygote model (GA vs AA: OR=1.465, 95% CI=1.192-1.801; P≤0.001) and dominant model (GG+GA vs AA: OR=1.448, 95% CI=1.152-1.821; P=0.002), but not among Caucasian and Latinos populations. CONCLUSION These results suggested that the IL-10 -1082 A/G (rs1800896) polymorphism might contribute to the gastric cancer susceptibility, especially among Asians.
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Affiliation(s)
- Abolfazl Namazi
- Department of Internal Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Forat-Yazdi
- Department of Internal Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammadali Jafari
- Department of Emergency Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Soudabeh Farahnak
- Department of Endodontic, Arak University of Medical Sciences, Arak, Iran
| | - Rezvan Nasiri
- Department of Pediatric Dentistry, Arak University of Medical Sciences, Arak, Iran
| | - Elnaz Foroughi
- Department of Restorative and Esthetic, Arak University of Medical Sciences, Arak, Iran
| | | | - Hossein Neamatzadeh
- Mother and Newborn Health Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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XRCC3 polymorphism is associated with hypertension-induced left ventricular hypertrophy. Hypertens Res 2018; 41:426-434. [PMID: 29626209 DOI: 10.1038/s41440-018-0038-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 12/13/2017] [Accepted: 12/13/2017] [Indexed: 12/15/2022]
Abstract
Deficiency of X-ray repair cross-complementing protein 3 (XRCC3), a DNA-damage repair molecule, and the 241Met variant of XRCC3 have been reported to increase endoreduplication, which induces polyploidy. The aims of this study were to determine the impact of the XRCC3 polymorphism on the incidence of hypertension-induced left ventricular hypertrophy (LVH) and to investigate the mechanisms underlying any potential relationship. Patients undergoing chronic hemodialysis (n = 77) were genotyped to assess for the XRCC3 Thr241Met polymorphism. The XRCC3 241Thr/Met genotype was more frequent in the LVH (+) group than in the LVH (-) group (42.3 vs. 13.7%, χ2 = 7.85, p = 0.0051). To investigate possible mechanisms underlying these observations, human XRCC3 cDNA of 241Thr or that of 241Met was introduced into cultured CHO cells. The surface area of CHO cells expressing XRCC3 241Met was larger than that expressing 241Thr. Spontaneous DNA double-strand breaks accumulated to a greater degree in NIH3T3 cells expressing 241Met (3T3-241Met) than in those expressing 241Thr (3T3-241Thr). DNA damage caused by radiation induced cell senescence more frequently in 3T3-241Met. The levels of basal and TNF-α-stimulated MCP-1 mRNA and protein secretion were higher in 3T3-241Met. Finally, FACS analysis revealed that the cell percentage in G2/M phase including polyploidy was significantly higher in 3T3-241Met than in 3T3-241Thr. Furthermore, the basal level of MCP-1 mRNA positively correlated with the cell percentage in G2/M phase and polyploidy. These data suggest that the XRCC3 241Met increases the risk of LVH via accumulation of DNA damage, thereby altering cell cycle progression and inducing cell senescence and a proinflammatory phenotype.
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Carrera-Lasfuentes P, Lanas A, Bujanda L, Strunk M, Quintero E, Santolaria S, Benito R, Sopeña F, Piazuelo E, Thomson C, Pérez-Aisa A, Nicolás-Pérez D, Hijona E, Espinel J, Campo R, Manzano M, Geijo F, Pellise M, Zaballa M, González-Huix F, Espinós J, Titó L, Barranco L, D'Amato M, García-González MA. Relevance of DNA repair gene polymorphisms to gastric cancer risk and phenotype. Oncotarget 2018; 8:35848-35862. [PMID: 28415781 PMCID: PMC5482622 DOI: 10.18632/oncotarget.16261] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/27/2017] [Indexed: 12/21/2022] Open
Abstract
Variations in DNA repair genes have been reported as key factors in gastric cancer (GC) susceptibility but results among studies are inconsistent. We aimed to assess the relevance of DNA repair gene polymorphisms and environmental factors to GC risk and phenotype in a Caucasian population in Spain. Genomic DNA from 603 patients with primary GC and 603 healthy controls was typed for 123 single nucleotide polymorphisms in DNA repair genes using the Illumina platform. Helicobacter pylori infection with CagA strains (odds ratio (OR): 1.99; 95% confidence interval (CI): 1.55–2.54), tobacco smoking (OR: 1.77; 95% CI: 1.22–2.57), and family history of GC (OR: 2.87; 95% CI: 1.85–4.45) were identified as independent risk factors for GC. By contrast, the TP53 rs9894946A (OR: 0.73; 95% CI: 0.56–0.96), TP53 rs1042522C (OR: 0.76; 95% CI: 0.56–0.96), and BRIP1 rs4986764T (OR: 0.55; 95% CI: 0.38–0.78) variants were associated with lower GC risk. Significant associations with specific anatomopathological GC subtypes were also observed, most notably in the ERCC4 gene with the rs1799801C, rs2238463G, and rs3136038T variants being inversely associated with cardia GC risk. Moreover, the XRCC3 rs861528 allele A was significantly increased in the patient subgroup with diffuse GC (OR: 1.75; 95% CI: 1.30–2.37). Our data show that specific TP53, BRIP1, ERCC4, and XRCC3 polymorphisms are relevant in susceptibility to GC risk and specific subtypes in Caucasians.
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Affiliation(s)
| | - Angel Lanas
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain.,Department of Gastroenterology, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain.,Faculty of Medicine, Universidad de Zaragoza, Zaragoza, Spain
| | - Luis Bujanda
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Department of Gastroenterology, Hospital Donostia/Instituto Biodonostia, Universidad del País Vasco (UPV/EHU), San Sebastián, Spain
| | - Mark Strunk
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, Spain
| | - Enrique Quintero
- Department of Gastroenterology, Hospital Universitario de Canarias, Instituto Universitario de Tecnologías Biomédicas (ITB), Centro de Investigación Biomédica de Canarias (CIBICAN), Tenerife, Spain
| | | | - Rafael Benito
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain.,Faculty of Medicine and Department of Microbiology, Hospital Clínico Universitario, Zaragoza, Spain
| | - Federico Sopeña
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain.,Department of Gastroenterology, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - Elena Piazuelo
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain.,Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, Spain
| | - Concha Thomson
- Department of Gastroenterology, Hospital Obispo Polanco, Teruel, Spain
| | | | - David Nicolás-Pérez
- Department of Gastroenterology, Hospital Universitario de Canarias, Instituto Universitario de Tecnologías Biomédicas (ITB), Centro de Investigación Biomédica de Canarias (CIBICAN), Tenerife, Spain
| | - Elizabeth Hijona
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Department of Gastroenterology, Hospital Donostia/Instituto Biodonostia, Universidad del País Vasco (UPV/EHU), San Sebastián, Spain
| | - Jesús Espinel
- Department of Gastroenterology, Complejo Hospitalario, León, Spain
| | - Rafael Campo
- Department of Gastroenterology, Hospital Parc Tauli, Sabadell, Spain
| | - Marisa Manzano
- Department of Gastroenterology, Hospital 12 de Octubre, Madrid, Spain
| | - Fernando Geijo
- Department of Gastroenterology, Hospital Clínico Universitario, Salamanca, Spain
| | - María Pellise
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Department of Gastroenterology, Hospital Clinic I Provincial, Institut d Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universidad de Barcelona, Barcelona, Spain
| | - Manuel Zaballa
- Department of Gastroenterology, Hospital de Cruces, Barakaldo, Spain
| | | | - Jorge Espinós
- Department of Gastroenterology, Mutua de Tarrasa, Spain
| | - Llúcia Titó
- Department of Gastroenterology, Hospital de Mataró, Mataró, Spain
| | - Luis Barranco
- Department of Gastroenterology, Hospital del Mar, Barcelona, Spain
| | - Mauro D'Amato
- BioDonostia Health Research Institute, IKERBASQUE, Basque Foundation for Science, San Sebastián, Spain
| | - María Asunción García-González
- CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.,Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain.,Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, Spain
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Silva-Fernandes IJDL, Oliveira ESD, Santos JC, Ribeiro ML, Ferrasi AC, Pardini MIDMC, Burbano RMR, Rabenhorst SHB. The intricate interplay between MSI and polymorphisms of DNA repair enzymes in gastric cancer H.pylori associated. Mutagenesis 2017; 32:471-478. [DOI: 10.1093/mutage/gex013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 04/24/2017] [Indexed: 12/15/2022] Open
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Abstract
Gastric cancer has high morbidity and mortality. Identification of patients with high gastric cancer risk at early stage will improve patient prognosis. In this study, we examined two single nucleotide polymorphism (SNP) sites of COX-2 gene in gastric cancer patients and explored the effect of the SNPs on the morbidity of gastric cancer. We found that the SNPs COX-2-1195G/A and COX-2-8473T/C are correlated with the occurrence of gastric cancer, and the patients with variants A and C of the SNPs are liable to have gastric cancer. Our study provides a potential method for screening of susceptible population of gastric cancer for early-stage intervention in patients.
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Rates of lymph node metastasis and survival in T1a gastric adenocarcinoma in Western populations. Gastrointest Endosc 2016; 83:1184-1192.e1. [PMID: 26546980 PMCID: PMC4862925 DOI: 10.1016/j.gie.2015.10.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 10/28/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS EMR and endoscopic submucosal dissection (ESD) are widely accepted in Asia for treatment of early gastric cancer (EGC). Few studies have examined lymph node (LN) metastasis of EGC in Western populations. We sought to examine EGC and LN metastasis in a heterogeneous Western population. METHODS Patients with surgically resected, histologically confirmed American Joint Committee on Cancer T1a gastric adenocarcinoma were identified in the Surveillance, Epidemiology, and End Results (SEER) database from 2002 to 2012. Patients were excluded if they had stage IV disease, had multiple primary cancers, or received neoadjuvant therapy. Rates of LN metastasis were calculated, and survival analyses were performed. RESULTS Of 923 patients in the cohort, 72 (7.8%) had at least 1 positive LN on final pathology. When stratified by race, Asian/Pacific Islanders (APIs) demonstrated the lowest rate of LN metastases (n = 17/327, 5.2%), followed by Hispanics (n = 12/171, 7.0%), whites (n = 27/278, 9.7%), and blacks (n = 16/147, 10.9%). The highest rates of stage IA disease were observed in API (93.9%) and Hispanic (92.4%) patients, followed by white (89.9%) and black (87.1%) patients (P = .04). Survival analysis of T1a gastric cancer patients by race/ethnicity showed that 5-year overall survival was highest for API patients (API, 88%; Hispanic, 81%; black, 79%; and white, 77%; P < .01). CONCLUSIONS The rate of LN metastasis in T1a gastric cancers in the United States is higher than the rates reported in Asia. Survival outcomes in T1a gastric cancers varied significantly by race, suggesting that definitive endoscopic treatment may not be appropriate for all patients in the United States.
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Talar-Wojnarowska R, Gąsiorowska A, Olakowski M, Dranka-Bojarowska D, Lampe P, Smolarz B, Małecka-Panas E. Analysis of XRCC2 and XRCC3 gene polymorphisms in pancreatic cancer. Biomed Rep 2015; 4:236-240. [PMID: 26893845 DOI: 10.3892/br.2015.550] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 10/26/2015] [Indexed: 12/13/2022] Open
Abstract
The double-strand break DNA repair pathway, including XRCC2 and XRCC3 genes, is implicated in maintaining genomic stability and therefore could affect the pancreatic cancer risk. The aim of the present study was to evaluate the clinical significance of the XRCC2 and XRCC3 gene polymorphisms in patients with pancreatic cancer. The present study included 203 patients: 101 with pancreatic cancer and 102 healthy controls. The Arg188His XRCC2 and the Thr241Met XRCC3 gene polymorphisms have been studied in DNA isolated from blood samples. The associations of the analysed genotypes and clinical data at diagnosis have been evaluated. The frequencies of the genotypes of the Arg188His XRCC2 and Thr241Met XRCC3 polymorphisms did not differ significantly between patients and controls. The study did not identify a correlation between the XRCC2 and XRCC3 genes polymorphisms and tumor size or localisation. Analysed polymorphisms were also not associated with the gender and age of the patient, or the presence of regional or distant metastases. In conclusion, the present study did not suggest an association between the Arg188His XRCC2 and the Thr241Met XRCC3 polymorphisms and the clinical data of patients with pancreatic cancer.
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Affiliation(s)
| | - Anita Gąsiorowska
- Department of Digestive Tract Diseases, Medical University of Łódź, 90-153 Łódź, Poland
| | - Marek Olakowski
- Department of Digestive Tract Surgery, Silesian Medical University, 40-055 Katowice, Poland
| | | | - Paweł Lampe
- Department of Digestive Tract Surgery, Silesian Medical University, 40-055 Katowice, Poland
| | - Beata Smolarz
- Laboratory of Molecular Genetics, Institute of Polish Mother's Memorial Hospital, 93-338 Łódź, Poland
| | - Ewa Małecka-Panas
- Department of Digestive Tract Diseases, Medical University of Łódź, 90-153 Łódź, Poland
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11
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Gong H, Li H, Zou J, Mi J, Liu F, Wang D, Yan D, Wang B, Zhang S, Tian G. The relationship between five non-synonymous polymorphisms within three XRCC genes and gastric cancer risk in a Han Chinese population. Tumour Biol 2015; 37:5905-10. [DOI: 10.1007/s13277-015-3502-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 04/23/2015] [Indexed: 12/14/2022] Open
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12
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Merchant SJ, Li L, Kim J. Racial and ethnic disparities in gastric cancer outcomes: More important than surgical technique? World J Gastroenterol 2014; 20:11546-11551. [PMID: 25206261 PMCID: PMC4155347 DOI: 10.3748/wjg.v20.i33.11546] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 02/08/2014] [Accepted: 05/29/2014] [Indexed: 02/06/2023] Open
Abstract
Racial and ethnic disparities in cancer care are major public health concerns and their identification is necessary to develop interventions to eliminate these disparities. We and others have previously observed marked disparities in gastric cancer outcomes between Eastern and Western patients. These disparities have long been attributed to surgical technique and extent of lymphadenectomy. However, more recent evidence suggests that other factors such as tumor biology, environmental factors such as Helicobacter pylori infection and stage migration may also significantly contribute to these observed disparities. We review the literature surrounding disparities in gastric cancer and provide data pertaining to potential contributing factors.
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