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Reuss DE, Downing SM, Camacho CV, Wang YD, Piro RM, Herold-Mende C, Wang ZQ, Hofmann TG, Sahm F, von Deimling A, McKinnon PJ, Frappart PO. Simultaneous Nbs1 and p53 inactivation in neural progenitors triggers high-grade gliomas. Neuropathol Appl Neurobiol 2023; 49:e12915. [PMID: 37296499 DOI: 10.1111/nan.12915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 04/25/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
AIMS Nijmegen breakage syndrome (NBS) is a rare autosomal recessive disorder caused by hypomorphic mutations of NBS1. NBS1 is a member of the MRE11-RAD50-NBS1 (MRN) complex that binds to DNA double-strand breaks and activates the DNA damage response (DDR). Nbs1 inactivation in neural progenitor cells leads to microcephaly and premature death. Interestingly, p53 homozygous deletion rescues the NBS1-deficient phenotype allowing long-term survival. The objective of this work was to determine whether simultaneous inactivation of Nbs1 and p53 in neural progenitors triggered brain tumorigenesis and if so in which category this tumour could be classified. METHODS We generated a mouse model with simultaneous genetic inactivation of Nbs1 and p53 in embryonic neural stem cells and analysed the arising tumours with in-depth molecular analyses including immunohistochemistry, array comparative genomic hybridisation (aCGH), whole exome-sequencing and RNA-sequencing. RESULTS NBS1/P53-deficient mice develop high-grade gliomas (HGG) arising in the olfactory bulbs and in the cortex along the rostral migratory stream. In-depth molecular analyses using immunohistochemistry, aCGH, whole exome-sequencing and RNA-sequencing revealed striking similarities to paediatric human HGG with shared features with radiation-induced gliomas (RIGs). CONCLUSIONS Our findings show that concomitant inactivation of Nbs1 and p53 in mice promotes HGG with RIG features. This model could be useful for preclinical studies to improve the prognosis of these deadly tumours, but it also highlights the singularity of NBS1 among the other DNA damage response proteins in the aetiology of brain tumours.
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Affiliation(s)
- David E Reuss
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- Department of Neuropathology, Institute of Pathology, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Susanna M Downing
- Center for Pediatric Neurological Disease Research, St. Jude Translational Neuroscience, Departments of Genetics and Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Cristel V Camacho
- Center for Pediatric Neurological Disease Research, St. Jude Translational Neuroscience, Departments of Genetics and Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Yong-Dong Wang
- Center for Pediatric Neurological Disease Research, St. Jude Translational Neuroscience, Departments of Genetics and Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Rosario M Piro
- Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Politecnico di Milano, Milan, Italy
| | - Christel Herold-Mende
- Department of Neurosurgery, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Zhao-Qi Wang
- Leibniz Institute on Ageing-Fritz Lipmann Institute, Jena, Germany
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Thomas G Hofmann
- Institute of Toxicology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Felix Sahm
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- Department of Neuropathology, Institute of Pathology, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Andreas von Deimling
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- Department of Neuropathology, Institute of Pathology, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Peter J McKinnon
- Center for Pediatric Neurological Disease Research, St. Jude Translational Neuroscience, Departments of Genetics and Cell and Molecular Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Pierre-Olivier Frappart
- Institute of Toxicology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
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Belhadj S, Khurram A, Bandlamudi C, Palou-Márquez G, Ravichandran V, Steinsnyder Z, Wildman T, Catchings A, Kemel Y, Mukherjee S, Fesko B, Arora K, Mehine M, Dandiker S, Izhar A, Petrini J, Domchek S, Nathanson KL, Brower J, Couch F, Stadler Z, Robson M, Walsh M, Vijai J, Berger M, Supek F, Karam R, Topka S, Offit K. NBN Pathogenic Germline Variants are Associated with Pan-Cancer Susceptibility and In Vitro DNA Damage Response Defects. Clin Cancer Res 2023; 29:422-431. [PMID: 36346689 PMCID: PMC9843434 DOI: 10.1158/1078-0432.ccr-22-1703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/26/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022]
Abstract
PURPOSE To explore the role of NBN as a pan-cancer susceptibility gene. EXPERIMENTAL DESIGN Matched germline and somatic DNA samples from 34,046 patients were sequenced using Memorial Sloan Kettering-Integrated Mutation Profiling of Actionable Cancer Targets and presumed pathogenic germline variants (PGV) identified. Allele-specific and gene-centered analysis of enrichment was conducted and a validation cohort of 26,407 pan-cancer patients was analyzed. Functional studies utilized cellular models with analysis of protein expression, MRN complex formation/localization, and viability assessment following treatment with γ-irradiation. RESULTS We identified 83 carriers of 32 NBN PGVs (0.25% of the studied series), 40% of which (33/83) carried the Slavic founder p.K219fs. The frequency of PGVs varied across cancer types. Patients harboring NBN PGVs demonstrated increased loss of the wild-type allele in their tumors [OR = 2.7; confidence interval (CI): 1.4-5.5; P = 0.0024; pan-cancer], including lung and pancreatic tumors compared with breast and colorectal cancers. p.K219fs was enriched across all tumor types (OR = 2.22; CI: 1.3-3.6; P = 0.0018). Gene-centered analysis revealed enrichment of PGVs in cases compared with controls in the European population (OR = 1.9; CI: 1.3-2.7; P = 0.0004), a finding confirmed in the replication cohort (OR = 1.8; CI: 1.2-2.6; P = 0.003). Two novel truncating variants, p.L19* and p.N71fs, produced a 45 kDa fragment generated by alternative translation initiation that maintained binding to MRE11. Cells expressing these fragments showed higher sensitivity to γ-irradiation and lower levels of radiation-induced KAP1 phosphorylation. CONCLUSIONS Burden analyses, biallelic inactivation, and functional evidence support the role of NBN as contributing to a broad cancer spectrum. Further studies in large pan-cancer series and the assessment of epistatic and environmental interactions are warranted to further define these associations.
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Affiliation(s)
- Sami Belhadj
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Ambry Genetics, Aliso Viejo, California
| | - Aliya Khurram
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Chaitanya Bandlamudi
- Department of Pathology, Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Guillermo Palou-Márquez
- Genome Data Science, Institute for Research in Biomedicine (IRB Barcelona), Barcelona institute for Science and Technology, Barcelona, Spain
| | - Vignesh Ravichandran
- Department of Pathology, Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Zoe Steinsnyder
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Temima Wildman
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Amanda Catchings
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Yelena Kemel
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Semanti Mukherjee
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Benjamin Fesko
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Kanika Arora
- Department of Pathology, Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Miika Mehine
- Department of Pathology, Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sita Dandiker
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Aalin Izhar
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - John Petrini
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Susan Domchek
- Basser Center for BRCA and Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Katherine L. Nathanson
- Basser Center for BRCA and Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jamie Brower
- Basser Center for BRCA and Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Fergus Couch
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Zsofia Stadler
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Mark Robson
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Breast Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Michael Walsh
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Joseph Vijai
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Michael Berger
- Department of Pathology, Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Fran Supek
- Genome Data Science, Institute for Research in Biomedicine (IRB Barcelona), Barcelona institute for Science and Technology, Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | | | - Sabine Topka
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
| | - Kenneth Offit
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center (MSKCC), New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
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Ghaderi-Zefrehi H, Rezaei M, Sadeghi F, Heiat M. Genetic polymorphisms in DNA repair genes and hepatocellular carcinoma risk. DNA Repair (Amst) 2021; 107:103196. [PMID: 34416543 DOI: 10.1016/j.dnarep.2021.103196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 05/23/2021] [Accepted: 07/26/2021] [Indexed: 01/27/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most frequent types of tumors worldwide. Its occurrence and development have been related to various risk factors, such as chronic infection with hepatitis B or C viruses and alcohol addiction. DNA repair systems play a critical role in maintaining the integrity of the genome. Defects in these systems have been related to increased susceptibility to various types of cancer. Multiple genetic polymorphisms in genes of DNA repair systems have been reported that may affect DNA repair capacity (DRC) and modulate risk to cancer. Several studies have been conducted to assess the role of polymorphisms of DNA repair genes on the HCC risk. Identifying these polymorphisms and their association with HCC risk may help to improve prevention and treatment strategies. In this study, we review investigations that evaluated the association between genetic polymorphisms of DNA repair genes and risk of HCC.
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Affiliation(s)
- Hossein Ghaderi-Zefrehi
- Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Maryam Rezaei
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Farzin Sadeghi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Heiat
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Gillman R, Lopes Floro K, Wankell M, Hebbard L. The role of DNA damage and repair in liver cancer. Biochim Biophys Acta Rev Cancer 2020; 1875:188493. [PMID: 33316376 DOI: 10.1016/j.bbcan.2020.188493] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/25/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023]
Abstract
Hepatocellular carcinoma is rapidly becoming a major cause of global mortality due to the ever-increasing prevalence of obesity. DNA damage is known to play an important role in cancer initiation, however DNA repair systems are also vital for the survival of cancer cells. Given the function of the liver and its exposure to the gut, it is likely that DNA damage and repair would be of particular importance in hepatocellular carcinoma. However, many contemporary reports have neglected the role of individual pathways of DNA damage and repair in their hypotheses. This review, therefore, aims to provide a concise overview for researchers in the field of liver cancer to understand the pathways of DNA damage and repair and their individual roles in hepatocellular carcinoma.
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Affiliation(s)
- Rhys Gillman
- Department of Molecular and Cell Biology, College of Public Health, Medical, and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Kylie Lopes Floro
- Department of Molecular and Cell Biology, College of Public Health, Medical, and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia; Department of Radiation Oncology, Townsville University Hospital, Townsville, Queensland, Australia
| | - Miriam Wankell
- Department of Molecular and Cell Biology, College of Public Health, Medical, and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia; Australian Institute for Tropical Health and Medicine, Townsville, Queensland, Australia
| | - Lionel Hebbard
- Department of Molecular and Cell Biology, College of Public Health, Medical, and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia; Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney, New South Wales, Australia; Australian Institute for Tropical Health and Medicine, Townsville, Queensland, Australia.
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5
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Hu X, Liao J, Zhao H, Chen F, Zhu X, Li J, Nong Q. NBS1 rs2735383 polymorphism is associated with an increased risk of laryngeal carcinoma. BMC Cancer 2018; 18:175. [PMID: 29433451 PMCID: PMC5810033 DOI: 10.1186/s12885-018-4078-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 01/29/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Nijmegen breakage syndrome 1 (NBS1), as a key protein in the DNA double-strand breaks (DSBs) repair pathway, plays an important role in maintaining genomic stability. Although single nucleotide polymorphisms (SNPs) in NBS1 have frequently been studied in multiple cancers, the relationships of two functional NBS1 polymorphisms (rs2735383 and rs1805794) with laryngeal carcinoma are yet unclear. Therefore, in the present study, we performed a case-control study including 342 cases and 345 controls to analyze the associations between two polymorphisms of NBS1 and the risk of laryngeal carcinoma. METHODS We used the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method to determine the genotypes of the functional SNPs in NBS1 gene. RESULTS In comparison with the homozygous rs2735383GG genotype, the CC genotype was significantly associated with an increased risk of laryngeal carcinoma (adjusted OR = 1.884, 95%CI = 1.215-2.921). The rs2735383C variant genotypes (GC + CC) conferred a 1.410-fold increased risk of laryngeal carcinoma (adjusted OR = 1.410, 95%CI = 1.004-1.980). Furthermore, when compared to rs2735383GG genotype in laryngeal carcinoma tissues, the combined GC and CC genotypes exerted a significantly lower mRNA level of NBS1 (P = 0.003). In contrast, no significant association was found between rs1805794G > C polymorphism and cancer risk (adjusted OR = 1.074, 95%CI = 0.759-1.518 for GC; adjusted OR = 1.100, 95%CI = 0.678-1.787 for CC; adjusted OR = 1.079, 95%CI = 0.774-1.505 for GC + CC). CONCLUSIONS These findings indicate that rs2735383G > C polymorphism in NBS1 may play a crucial role in the development of laryngeal carcinoma.
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Affiliation(s)
- Xinmei Hu
- School of Public Health, Guangxi Medical University, 22 Shuangyong Road, Nanning, Guangxi, 530021, China
| | - Juan Liao
- School of Public Health, Guangxi Medical University, 22 Shuangyong Road, Nanning, Guangxi, 530021, China
| | - Huiliu Zhao
- Department of Clinical Laboratory, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Feng Chen
- Department of Medical Oncology Division, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Xuefeng Zhu
- School of Public Health, Guangxi Medical University, 22 Shuangyong Road, Nanning, Guangxi, 530021, China
| | - Jiangheng Li
- School of Public Health, Guangxi Medical University, 22 Shuangyong Road, Nanning, Guangxi, 530021, China
| | - Qingqing Nong
- School of Public Health, Guangxi Medical University, 22 Shuangyong Road, Nanning, Guangxi, 530021, China. .,Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, China.
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Zhen Y, Xiao R, Chen X, Yuan C, Sun Y, Li J. A non-synonymous polymorphism in NBS1 is associated with progression from chronic hepatitis B virus infection to hepatocellular carcinoma in a Chinese population. Onco Targets Ther 2018; 11:563-569. [PMID: 29416357 PMCID: PMC5790086 DOI: 10.2147/ott.s153538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
PURPOSE Nijmegen breakage syndrome 1 (NBS1) has a vital role in DNA double-strand break (DSB) repair, functioning as a sensor to identify and repair DNA damage and maintaining genomic stability by participating in the intra-S-phase checkpoint. Polymorphisms of NBS1 have been investigated in multiple cancers with variable results. To our best knowledge, no previous study has focused on the association between NBS1 single-nucleotide polymorphisms (SNPs) and hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC). PATIENTS AND METHODS Five NBS1 SNPs were selected based on their potential functional impact. A hospital-based cohort, comprising 481 patients with HBV-related HCC, 508 patients with chronic hepatitis B virus infection (CHB), and 581 healthy controls, was recruited for genotyping analysis. RESULTS After quality control, four SNPs were successfully genotyped (rs10464867, rs1063053, rs1805794, and rs709816), none of which were significantly associated with HCC or CHB compared with those of healthy controls. Similarly, the combined HBV-infected group (including the HCC and CHB groups) exhibited no significant associations with these SNPs compared with healthy controls. In contrast, comparison of the frequency of rs1805794 between patients with CHB and those with HCC identified a significant association (P=2.99E-03, odds ratio =1.31, 95% confidence interval =1.10-1.56). CONCLUSION These findings suggest that, as a non-synonymous SNP, the rs1805794 C/G polymorphism may play a role in the progression from CHB to HCC.
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Affiliation(s)
- Ya’nan Zhen
- Department of General Surgery, Qianfoshan Hospital, Shandong University, Jinan
- Department of General Surgery, Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan
| | - Ruixue Xiao
- Department of Pathology, Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan
| | - Xing Chen
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan
| | - Changjin Yuan
- Department of Clinical Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan
| | - Yanlai Sun
- Department of Gastrointestinal Cancer Surgery, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, People’s Republic of China
| | - Jie Li
- Department of General Surgery, Qianfoshan Hospital, Shandong University, Jinan
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Significance of microRNA-related variants in susceptibility to recurrence of oropharyngeal cancer patients after definitive radiotherapy. Oncotarget 2018; 7:35015-25. [PMID: 27145460 PMCID: PMC5085206 DOI: 10.18632/oncotarget.9014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 04/15/2016] [Indexed: 12/14/2022] Open
Abstract
Common single nucleotide polymorphisms (SNPs) in miRNAs may affect miRNA functions and their target expression and thus may affect biological activities and cancer etiology as well as prognosis. Thus, we determined whether the 9 SNPs in microRNAs modify the risk of recurrence of squamous cell carcinoma of the oropharynx (SCCOP) in a cohort of 1008 patients. The log-rank test and multivariate Cox models were used to evaluate the associations. We found that the SNPs in the miRNA146, miRNA196, and Gemin3 were associated with a significantly reduced and increased risk of SCCOP recurrence after multivariate adjustment (aHR, 0.6, 95%CI, 0.4-0.9, aHR, 2.1, 95%CI, 1.6-2.8, and aHR, 0.6, 95%CI, 0.5-0.9, respectively). Furthermore, the similar effect of these 3 SNPs on SCCOP recurrence risk was found in HPV-positive SCCOP patients only. However, no significant associations were found for other SNPs. To evaluate the aggregate effects of these SNPs, we performed a combined risk genotype analysis. We found that, compared with the low-risk reference group with less than 4 risk genotypes, the medium-risk group with 4 or 5 risk genotypes exhibited a 1.7-fold (1.2-2.4) increased risk whereas the high-risk group with more than 5 risk genotypes exhibited a 3.0-fold (1.7-4.2) increased risk (Ptrend < 0.001). Such combined effects were particularly pronounced in HPV-positive SCCOP patients. Taken together, this is the first study with a large cohort of SCCOP patients showing that miRNA-related genetic variants may modify risk of SCCOP recurrence individually and jointly. Larger studies are needed to validate these results.
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Dou R, Zhang L, Lu T, Liu D, Mei F, Huang J, Qian L. Identification of a novel HRAS variant and its association with papillary thyroid carcinoma. Oncol Lett 2018; 15:4511-4516. [PMID: 29556290 DOI: 10.3892/ol.2018.7818] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 12/11/2017] [Indexed: 12/27/2022] Open
Abstract
HRas proto-oncogene (HRAS) is one of the most commonly mutated genes in thyroid cancer, with mutations frequently occurring in the follicular and Hurthle cell subtypes. However, the contribution of mutations in HRAS to papillary thyroid carcinoma (PTC) progression and the tall-cell variant (TCV) is poorly understood. The aim of the present study was to investigate the somatic genetic variants present in HRAS in patients with PTC, and to investigate the association of these mutations with PTC. The present study is a retrospective case-control study using tumor samples collected from 139 patients with PTC and blood samples from 195 healthy individuals. All patient samples were screened for mutations in 'hotspot' regions of HRAS and B-raf proto-oncogene (BRAF) by single-stranded conformational polymorphism analysis, followed by direct sequencing. A novel variant (IVS1-82del gctgggcctggg) in the HRAS 5'-untranslated region was identified. There was no difference in age or sex of patients with PTC and the healthy controls; however, the HRAS variant was more frequently detected in PTC tissue than in the healthy control samples (37 vs. 26%, P=0.04). There was no association between the HRAS variant and age, sex, tumor size, encapsulation, multifocality/intra-thyroidal spread, Tumor-Node-Metastasis stage, history of Hashimoto's disease, BRAF V600E mutation or PTC subtype (all P>0.05). There were differences of BRAF V600E distribution among different subtypes (χ2=6.390, P=0.041). HRAS variant co-occurring with the BRAF V600E mutation accounted for 31.6% of the total number (P=0.196). Therefore, this novel variant of HRAS (IVS1-82del gctgggcctggg) may be associated with PTC; however, larger scale studies are required to assess the contribution of this novel HRAS variant to PTC progression.
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Affiliation(s)
- Rui Dou
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China.,Department of Ultrasound, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region 010030, P.R. China
| | - Lili Zhang
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Tingxia Lu
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Dong Liu
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Fang Mei
- Department of Pathology, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Jian Huang
- Experimental Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Linxue Qian
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
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Rosinha A, Assis J, Dias F, Nogueira A, Pereira D, Maurício J, Teixeira AL, Medeiros R. DNA repair system and renal cell carcinoma prognosis: under the influence of NBS1. Med Oncol 2015; 32:255. [PMID: 26493193 DOI: 10.1007/s12032-015-0701-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 10/09/2015] [Indexed: 01/06/2023]
Abstract
Nibrin (NBS1) is a protein involved in the maintenance of genomic stability and in DNA repair mechanisms. The NBS1 E185Q polymorphism (rs1805794) has been investigated in several studies, including its influence in the pathogenesis of renal cell carcinoma (RCC), although its prognostic value is still not determined for these patients. The purpose of the present work was to determine the role of NBS1 E185Q polymorphism as a prognostic factor/genetic marker of survival in patients with RCC. We conducted a hospital-based study analyzing 172 caucasian patients with histopathological diagnosis of RCC, for which polymorphism genotyping was performed by TaqMan(®) Allelic Discrimination methodology. In this study, we have found that male patients, non-metastatic at diagnosis and NBS1 C allele carriers (GC/CC) showed a lower 5-years survival when compared with GG genotype patients (P = 0.045). Furthermore, for carriers of low-activity NBS1 C allele, multivariate Cox regression analysis revealed almost a fourfold increase in risk of death at 5 years, after adjustment for age, histological type, Fuhrman's grade, tumor size and vascular permeation (HR 3.92; 95 % CI 1.33-11.57; P = 0.013). There were no statistically significant differences between the NBS1 E185Q genotypes and the assessed patients' clinical-pathological characteristics. Our results demonstrate for the first time the impact of NBS1 E185Q polymorphism in RCC prognosis suggesting that, for RCC male patients non-metastatic at diagnosis, this polymorphism might be a putative genetic marker in the clinical outcome.
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Affiliation(s)
- Alina Rosinha
- Oncology Department, Portuguese Institute of Oncology, Porto, Portugal.,Molecular Oncology and Viral Pathology Group - Research Center, Portuguese Institute of Oncology, Porto, Portugal
| | - Joana Assis
- Molecular Oncology and Viral Pathology Group - Research Center, Portuguese Institute of Oncology, Porto, Portugal.,FMUP, Faculty of Medicine of Porto University, Porto, Portugal
| | - Francisca Dias
- Molecular Oncology and Viral Pathology Group - Research Center, Portuguese Institute of Oncology, Porto, Portugal.,ICBAS, Abel Salazar Institute for the Biomedical Sciences, Porto, Portugal.,Research Department, Portuguese League Against Cancer (NRNorte), Porto, Portugal
| | - Augusto Nogueira
- Molecular Oncology and Viral Pathology Group - Research Center, Portuguese Institute of Oncology, Porto, Portugal.,FMUP, Faculty of Medicine of Porto University, Porto, Portugal.,Research Department, Portuguese League Against Cancer (NRNorte), Porto, Portugal
| | - Deolinda Pereira
- Oncology Department, Portuguese Institute of Oncology, Porto, Portugal.,Molecular Oncology and Viral Pathology Group - Research Center, Portuguese Institute of Oncology, Porto, Portugal.,ICBAS, Abel Salazar Institute for the Biomedical Sciences, Porto, Portugal
| | - Joaquina Maurício
- Oncology Department, Portuguese Institute of Oncology, Porto, Portugal
| | - Ana Luísa Teixeira
- Oncology Department, Portuguese Institute of Oncology, Porto, Portugal.,Research Department, Portuguese League Against Cancer (NRNorte), Porto, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group - Research Center, Portuguese Institute of Oncology, Porto, Portugal. .,ICBAS, Abel Salazar Institute for the Biomedical Sciences, Porto, Portugal. .,CEBIMED, Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal. .,Research Department, Portuguese League Against Cancer (NRNorte), Porto, Portugal. .,IPO Porto, R Ant Bernardino de Almeida, 4200-072, Porto, Portugal.
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10
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Sun P, Du J, Zhu X, Ren C, Xie L, Dai N, Gu Y, Yan C, Dai J, Ma H, Jiang Y, Chen J, Hu Z, Shen H, Wu H, Jin G. Genetic Variation in the 3'-Untranslated Region of NBN Gene Is Associated with Gastric Cancer Risk in a Chinese Population. PLoS One 2015; 10:e0139059. [PMID: 26402912 PMCID: PMC4581712 DOI: 10.1371/journal.pone.0139059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/07/2015] [Indexed: 01/28/2023] Open
Abstract
NBN plays a crucial role in carcinogenesis as a core component for both homologous recombination (HR) and non-homologous end-joining (NHEJ) DNA double-strand breaks (DSBs) repair pathways. Genetic variants in the NBN gene have been associated with multiple cancers risk, suggesting pleiotropic effect on cancer. We hypothesized that genetic variants in the NBN gene may modify the risk of gastric cancer. To test this hypothesis, we evaluated the association between four potentially functional single nucleotide polymorphisms in NBN and gastric cancer risk in a case-control study of 1,140 gastric cancer cases and 1,547 controls in a Chinese population. We found that the A allele of rs10464867 (G>A) was significantly associated with a decreased risk of gastric cancer (odds ratio [OR] = 0.81, 95% confidence interval [95% CI] = 0.71-0.94; P = 4.71×10-3). Furthermore, the association between A allele of rs10464867 and decreased risk of gastric cancer was more significantly in elder individuals (per-allele OR = 0.72[0.59-0.88], P = 1.07×10-3), and male individuals (per-allele OR = 0.73[0.62-0.87], P = 3.68×10-4). We further conducted a haplotype analysis and identified that the NBN Ars10464867Grs14448Grs1063053 haplotype conferred stronger protective effect on gastric cancer (OR = 0.76[0.65-0.89], P = 6.39×10-4). In summary, these findings indicate that genetic variants at NBN gene may contribute to gastric cancer susceptibility and may further advance our understanding of NBN gene in cancer development.
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Affiliation(s)
- Ping Sun
- Department of General Surgery, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Department of Pathology, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi 214006, China
| | - Jiangbo Du
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Xun Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Chuanli Ren
- Medical Lab, Northern Jiangsu People’s Hospital, Yangzhou 225001, China
| | - Lan Xie
- Medical Systems Biology Research Center, Tsinghua University School of Medicine, Beijing 100084, China
| | - Ningbin Dai
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Yayun Gu
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Caiwang Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Juncheng Dai
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Hongxia Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yue Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jiaping Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Haorong Wu
- Department of General Surgery, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- * E-mail: (GJ); (HW)
| | - Guangfu Jin
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, China
- * E-mail: (GJ); (HW)
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11
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Hsieh YH, Chang YY, Su IJ, Yen CJ, Liu YR, Liu RJ, Hsieh WC, Tsai HW, Wang LHC, Huang W. Hepatitis B virus pre-S2 mutant large surface protein inhibits DNA double-strand break repair and leads to genome instability in hepatocarcinogenesis. J Pathol 2015; 236:337-47. [PMID: 25775999 DOI: 10.1002/path.4531] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 02/25/2015] [Accepted: 03/09/2015] [Indexed: 12/27/2022]
Abstract
Although hepatitis B virus (HBV) has been established to cause hepatocellular carcinoma (HCC), the exact mechanism remains to be clarified. Type II ground glass hepatocytes (GGHs) harbouring the HBV pre-S2 mutant large surface protein (LHBS) have been recognized as a morphologically distinct hallmark of HCC in the advanced stages of chronic HBV infection. Considering its preneoplastic nature, we hypothesized that type II GGH may exhibit high genomic instability, which is important for the carcinogenic process in chronic HBV carriers. In this study we found that pre-S2 mutant LHBS directly interacted with importin α1, the key factor that recognizes cargos undergoing nuclear transportation mediated by the importin α/β-associated nuclear pore complex (NPC). By interacting with importin α1, which inhibits its function as an NPC factor, pre-S2 mutant LHBS blocked nuclear transport of an essential DNA repair and recombination factor, Nijmegen breakage syndrome 1 (NBS1), upon DNA damage, thereby delaying the formation of nuclear foci at the sites of DNA double-strand breaks (DSBs). Pre-S2 mutant LHBS was also found to block NBS1-mediated homologous recombination repair and induce multi-nucleation of cells. In addition, pre-S2 mutant LHBS transgenic mice showed genomic instability, indicated by increased global gene copy number variations (CNVs), which were significantly higher than those in hepatitis B virus X mice, indicating that pre-S2 mutant LHBS is the major viral oncoprotein inducing genomic instability in HBV-infected hepatocytes. Consistently, the human type II GGHs in HCC patients exhibited increased DNA DSBs representing significant genomic instability. In conclusion, type II GGHs harbouring HBV pre-S2 mutant oncoprotein represent a high-risk marker for the loss of genome integrity in chronic HBV carriers and explain the complex chromosome changes in HCCs. Mouse array CGH raw data: GEO Accession No. GSE61378 (http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE61378).
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Affiliation(s)
- Yi-Hsuan Hsieh
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ying Chang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ih-Jen Su
- Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Tainan, Taiwan
| | - Chia-Jui Yen
- Department of Haematology and Oncology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Yi-Ru Liu
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Ren-Jei Liu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Chuan Hsieh
- Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Tainan, Taiwan
| | - Hung-Wen Tsai
- Department of Pathology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Lily Hui-Ching Wang
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Wenya Huang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Basic Medicine, National Cheng Kung University, Tainan, Taiwan.,Centre of Infectious Disease and Signalling Research, National Cheng Kung University, Tainan, Taiwan
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12
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Fang W, Qiu F, Zhang L, Deng J, Zhang H, Yang L, Zhou Y, Lu J. The functional polymorphism of NBS1 p.Glu185Gln is associated with an increased risk of lung cancer in Chinese populations: case-control and a meta-analysis. Mutat Res 2014; 770:61-8. [PMID: 25771871 DOI: 10.1016/j.mrfmmm.2014.07.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 06/21/2014] [Accepted: 07/24/2014] [Indexed: 12/19/2022]
Abstract
NBS1 plays pivotal roles in maintaining genomic stability and cancer development. The exon variant rs1805794G>C (p.Glu185Gln) of NBS1 has been frequently studied in several association studies. However, the results were conflicting. Also, the function of this variant has never been well studied. In the current study, we performed a two centers case-control study and function assays to investigate the effect of the variant rs1805794G>C on lung cancer risk in Chinese, and a meta-analysis to summarize the data on the association between rs1805794G>C and cancer risk. We found that compared with the rs1805794GG genotype, the C genotypes (CG/CC) conferred a significantly increased risk of lung cancer in Chinese (OR=1.40, 95% CI=1.21-1.62) and interacted with medical ionizing radiation exposure on increasing cancer risk (Pinteraction=0.015). The lymphocyte cells from the C genotype individuals developed more chromatid breaks than those from the GG genotype carriers after the X-ray radiation (P=0.036). Moreover, the rs1805794C allele encoding p.185Gln attenuated NBS1's ability to repair DNA damage as the cell lines transfected with NBS1 cDNA expression vector carrying rs1805794C allele had significantly higher DNA breaks than those transfected with NBS1 cDNA expression vector carrying rs1805794G allele (P<0.05). The meta-analysis further confirmed the association between the variant rs1805794G>C and lung cancer risk, that compared with the GG genotype, the carriers of C genotypes had a 1.30-fold risk of cancer (95% CI=1.14-1.49, P=8.49×10(-5)). These findings suggest that the rs1805794G>C of NBS1 may be a functional genetic biomarker for lung cancer.
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Affiliation(s)
- Wenxiang Fang
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou 510182, China
| | - Fuman Qiu
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou 510182, China
| | - Lisha Zhang
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou 510182, China
| | - Jieqiong Deng
- Soochow University Laboratory of Cancer Molecular Genetics, Collaborative Innovation Center for Environmental Toxicity, Medical College of Soochow University, Suzhou 215123, China
| | - Haibo Zhang
- Department of Cardio-thoracic Surgery, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - Lei Yang
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou 510182, China
| | - Yifeng Zhou
- Soochow University Laboratory of Cancer Molecular Genetics, Collaborative Innovation Center for Environmental Toxicity, Medical College of Soochow University, Suzhou 215123, China
| | - Jiachun Lu
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, Guangzhou 510182, China.
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13
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Wang YD, Zhai WL, Wang HY, Xia XQ. An Updated Meta-analysis on the Association of X-Ray Repair Cross Complementing Group 1 Codon 399 Polymorphism with Hepatocellular Carcinoma Risk. Asian Pac J Cancer Prev 2014; 15:4443-8. [DOI: 10.7314/apjcp.2014.15.11.4443] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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14
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Berardinelli F, di Masi A, Antoccia A. NBN Gene Polymorphisms and Cancer Susceptibility: A Systemic Review. Curr Genomics 2013; 14:425-40. [PMID: 24396275 PMCID: PMC3867719 DOI: 10.2174/13892029113146660012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 08/30/2013] [Accepted: 09/02/2013] [Indexed: 01/07/2023] Open
Abstract
The relationship between DNA repair failure and cancer is well established as in the case of rare, high penetrant genes in high cancer risk families. Beside this, in the last two decades, several studies have investigated a possible association between low penetrant polymorphic variants in genes devoted to DNA repair pathways and risk for developing cancer. This relationship would be also supported by the observation that DNA repair processes may be modulated by sequence variants in DNA repair genes, leading to susceptibility to environmental carcinogens. In this framework, the aim of this review is to provide the reader with the state of the art on the association between common genetic variants and cancer risk, limiting the attention to single nucleotide polymorphisms (SNPs) of the NBN gene and providing the various odd ratios (ORs). In this respect, the NBN protein, together with MRE11 and RAD50, is part of the MRN complex which is a central player in the very early steps of sensing and processing of DNA double-strand breaks (DSBs), in telomere maintenance, in cell cycle control, and in genomic integrity in general. So far, many papers were devoted to ascertain possible association between common synonymous and non-synonymous NBN gene polymorphisms and increased cancer risk. However, the results still remain inconsistent and inconclusive also in meta-analysis studies for the most investigated E185Q NBN miscoding variant.
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15
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Yang T, Chang PY, Park SL, Bastani D, Chang SC, Morgenstern H, Tashkin DP, Mao JT, Papp JC, Rao JY, Cozen W, Mack TM, Greenland S, Zhang ZF. Tobacco smoking, NBS1 polymorphisms, and survival in lung and upper aerodigestive tract cancers with semi-Bayes adjustment for hazard ratio variation. Cancer Causes Control 2013; 25:11-23. [PMID: 24166361 DOI: 10.1007/s10552-013-0303-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 10/01/2013] [Indexed: 01/25/2023]
Abstract
PURPOSE Although single nucleotide polymorphisms (SNPs) of NBS1 have been associated with susceptibility to lung and upper aerodigestive tract (UADT) cancers, their relations to cancer survival and measures of effect are largely unknown. METHODS Using follow-up data from 611 lung cancer cases and 601 UADT cancer cases from a population-based case-control study in Los Angeles, we prospectively evaluated associations of tobacco smoking and 5 NBS1 SNPs with all-cause mortality. Mortality data were obtained from the Social Security Death Index. We used Cox regression to estimate adjusted hazard ratios (HR) for main effects and ratios of hazard ratios (RHR) derived from product terms to assess hazard ratio variations by each SNP. Bayesian methods were used to account for multiple comparisons. RESULTS We observed 406 (66 %) deaths in lung cancer cases and 247 (41 %) deaths in UADT cancer cases with median survival of 1.43 and 1.72 years, respectively. Ever tobacco smoking was positively associated with mortality for both cancers. We observed an upward dose-response association between smoking pack-years and mortality in UADT squamous cell carcinoma. The adjusted HR relating smoking to mortality in non-small cell lung cancer (NSCLC) was greater for cases with the GG genotype of NBS1 rs1061302 than for cases with AA/AG genotypes (semi-Bayes adjusted RHR = 1.97; 95 % limits = 1.14, 3.41). CONCLUSIONS A history of tobacco smoking at cancer diagnosis was associated with mortality among patients with lung cancer or UADT squamous cell carcinoma. The HR relating smoking to mortality appeared to vary with the NBS1 rs1061302 genotype among NSCLC cases.
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Affiliation(s)
- Tingting Yang
- Zhejiang Provincial CDC, Hangzhou, Zhejiang, People's Republic of China
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16
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Gao P, Ma N, Li M, Tian QB, Liu DW. Functional variants in NBS1 and cancer risk: evidence from a meta-analysis of 60 publications with 111 individual studies. Mutagenesis 2013; 28:683-97. [PMID: 24113799 DOI: 10.1093/mutage/get048] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Several potentially functional variants of Nijmegen breakage syndrome 1 (NBS1) have been implicated in cancer risk, but individually studies showed inconclusive results. In this study, a meta-analysis based on 60 publications with a total of 39 731 cancer cases and 64 957 controls was performed. The multivariate method and the model-free method were adopted to determine the best genetic model. It was found that rs2735383 variant genotypes were associated with significantly increased overall risk of cancer under the recessive genetic model [odds ratio (OR) =1.12, 95% confidence interval (CI): 1.02-1.22, P = 0.013]. Similar results were found for rs1063054 under the dominant model effect (OR = 1.12, 95% CI: 1.01-1.23, P = 0.024). The I171V mutation, 657del5 mutation and R215W mutation also contribute to the development of cancer (for I171V, OR = 3.93, 95% CI: 1.68-9.20, P = 0.002; for 657del5, OR = 2.79, 95% CI: 2.17-3.68, P < 0.001; for R215W, OR = 1.77, 95% CI: 1.07-2.91, P = 0.025). From stratification analyses, an effect modification of cancer risks was found in the subgroups of tumour site and ethnicity for rs2735383, whereas the I171V, 657del5 and R215W showed a deleterious effect of cancer susceptibility in the subgroups of tumour site. However, rs1805794, D95N and P266L did not appear to have an effect on cancer risk. These results suggest that rs2735383, rs1063054, I171V, 657del5 and R215W are low-penetrance risk factors for cancer development.
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Affiliation(s)
- Ping Gao
- Department of Social Medicine and
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17
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NBS1 Glu185Gln polymorphism and cancer risk: update on current evidence. Tumour Biol 2013; 35:675-87. [PMID: 23979977 DOI: 10.1007/s13277-013-1093-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 08/07/2013] [Indexed: 02/05/2023] Open
Abstract
A number of studies have investigated the association between NBS1 Glu185Gln (rs1805794, E185Q) polymorphism and cancer risk, but the results remained controversial. Previous meta-analysis found a borderline significant impact of this polymorphism on cancer risk; however, the result might be relatively unreliable due to absence of numerous newly published studies. Thus, we conducted an updated meta-analysis. A systematic search was performed in PubMed and Embase databases until April 9, 2013. The odds ratios were pooled by the fixed-effects/random-effects model in STATA 12.0 software. As a result, a total of 48 case-control studies with 17,159 cases and 22,002 controls were included. No significant association was detected between the Glu185Gln polymorphism and overall cancer risk. As to subgroup analysis by cancer site, the results showed that this polymorphism could increase the risk for leukemia and nasopharyngeal cancer. Notably, the Glu185Gln polymorphism was found to be related to increased risk for urinary system cancer, but decreased risk for digestive system cancer. No significant associations were obtained for other subgroup analyses such as ethnicity, sample size and smoking status. In conclusion, current evidence did not suggest that the NBS1 Glu185Gln polymorphism was associated with overall cancer risk, but this polymorphism might contribute to the risk for some specific cancer sites due to potential different mechanisms. More well-designed studies are imperative to identify the exact function of this polymorphism in carcinogenesis.
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18
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Association between the NBS1 Glu185Gln polymorphism and breast cancer risk: a meta-analysis. Tumour Biol 2013; 34:1255-62. [PMID: 23381647 DOI: 10.1007/s13277-013-0668-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 01/14/2013] [Indexed: 12/28/2022] Open
Abstract
Nijmegen breakage syndrome 1 (NBS1), a vital DNA repair protein in the homologous recombination repair pathway and a signal modifier in the intra-S phase checkpoint, plays a critical role in cellular response to DNA damages and the maintenance of genomic stability. The NBS1 Glu185Gln (NBS1 E185Q, NBS1 8360G>C, rs1805794) polymorphism has been indicated to be involved in the development of cancer, but results of previous individual studies on the association between NBS1 Glu185Gln polymorphism and breast cancer risk remain controversial and inconclusive. Our meta-analysis investigated this association for the first time by pooling the odds ratios with corresponding 95 % confidence intervals (95 % CIs) of all individual publications available to date. Overall, 14 separate studies with 6,642 cases and 7,138 controls were finally included into the present meta-analysis after a comprehensive literature search of the PubMed, Embase, Web of Science, and China National Knowledge Infrastructure databases up to October 21, 2012. Overall analysis and subgroup analyses by ethnicity and source of controls were performed. Meta-analysis of total studies showed that the NBS1 Glu185Gln variant carriers were not susceptible to breast cancer (ORGln vs. Glu = 1.05, 95 % CI 0.80-1.39, P OR = 0.719; OR Gln/Gln vs. Glu/Glu = 0.82, 95 % CI 0.62-1.08, P OR = 0.154; OR Glu/Gln vs. Glu/Glu = 1.00, 95 % CI 0.90-1.13, P OR = 0.939; ORGln/Gln + Glu/Gln vs. Glu/Glu = 0.96, 95 % CI 0.83-1.11, P OR = 0.551; ORGln/Gln vs. Glu/Glu + Glu/Gln = 0.84, 95 % CI 0.67-1.05, P OR = 0.134). Similar results were observed in heterogeneity-adjusted meta-analysis of all studies. Furthermore, subgroup analyses by ethnicity and source of controls did not identify any appreciable relationship of the NBS1 Glu185Gln polymorphism with breast cancer susceptibility in any populations. Sensitivity analysis by sequentially omitting individual studies confirmed the stability and reliability of our results. Our meta-analysis of currently available data shows no association between the NBS1 Glu185Gln polymorphism and breast cancer risk.
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NBS1 rs1805794G>C polymorphism is associated with decreased risk of acute myeloid leukemia in a Chinese population. Mol Biol Rep 2013; 40:3749-56. [PMID: 23283743 DOI: 10.1007/s11033-012-2451-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Accepted: 12/18/2012] [Indexed: 01/29/2023]
Abstract
As a key encoding protein gene of MRN (MRE11-RAD50-NBS1) complex, NBS1 plays a crucial role in maintaining genomic stability and preventing cell apoptosis, inflammation and tumorgenesis. Single nucleotide polymorphisms (rs2735383 and rs1805794) in NBS1 have been frequently studied in some cancers with discordant results in previous case-control studies. However, the relationship between these two functional polymorphisms and the susceptibility to acute myeloid leukemia (AML) in Chinese population has not been investigated. We performed a case-control study with 428 patients and 600 controls to detect the association between the two polymorphisms of NBS1 and the risk of AML in a Chinese population. The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was carried out to determine the genotypes of potential functional SNPs in NBS1 gene. The results showed that compared with the homozygous carriers rs1805794CC, rs1805794GC genotype was significantly associated with decreased risk of AML in total subjects (adjusted odds ratio (OR) = 0.50; 95% CI = 0.37-0.67), the risk decreased even further in those carrying rs1805794GG genotype (OR = 0.23; 95% CI = 0.16-0.34). No significant association was found between rs2735383C>G polymorphism and the risk of AML (OR = 0.93; 95% CI = 0.71-1.22 for GC; OR = 0.78; 95% CI = 0.53-1.13 for CC, P = 0.152). These findings indicated that rs1805794G/C polymorphism in NBS1 may play a protective role in mediating the risk of AML.
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