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Xiao Q, Chen J, Zhu J, Zeng S, Cai H, Zhu G. Association of several loci of SMAD7 with colorectal cancer: A meta-analysis based on case-control studies. Medicine (Baltimore) 2023; 102:e32631. [PMID: 36607878 PMCID: PMC9829263 DOI: 10.1097/md.0000000000032631] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Sma-and mad-related protein 7 (SMAD7) can affect tumor progression by closing transforming growth factor-beta intracellular signaling channels. Despite the extensive research on the correlation between SMAD7 polymorphisms and colorectal cancer (CRC), the conclusions of studies are still contradictory. We conducted a study focusing on the association of SMAD7 polymorphisms rs4939827, rs4464148, and rs12953717 with CRC. METHODS We searched through 5 databases for articles and used odd ratios (ORs) and 95% confidence intervals (CIs) to discuss the correlation of SMAD7 polymorphisms with CRC risk. The heterogeneity will be appraised by subgroup analysis and meta-regression. Contour-enhanced funnel plot, Begg test and Egger test were utilized to estimate publication bias, and the sensitivity analysis illustrates the reliability of the outcomes. We performed False-positive report probability and trial sequential analysis methods to verify results. We also used public databases for bioinformatics analysis. RESULTS We conclusively included 34 studies totaling 173251 subjects in this study. The minor allele (C) of rs4939827 is a protective factor of CRC (dominant, OR/[95% CI] = 0.89/[0.83-0.97]; recessive, OR/[95% CI] = 0.89/[0.83-0.96]; homozygous, OR/[95% CI] = 0.84/[0.76-0.93]; heterozygous, OR/[95% CI] = 0.91/[0.85-0.97]; additive, OR/[95% CI] = 0.91/[0.87-0.96]). the T allele of rs12953717 (recessive, OR/[95% CI] = 1.22/[1.15-1.28]; homozygous, OR/[95% CI] = 1.25/[1.13-1.38]; additive, OR/[95% CI] = 1.11/[1.05-1.17]) and the C allele of rs4464148 (heterozygous, OR/[95% CI] = 1.13/[1.04-1.24]) can enhance the risk of CRC. CONCLUSION Rs4939827 (T > C) can decrease the susceptibility to CRC. However, the rs4464148 (T > C) and rs12953717 (C > T) variants were connected with an enhanced risk of CRC.
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Affiliation(s)
- Qiang Xiao
- General Surgery Department, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Jian Chen
- General Surgery Department, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Jia Zhu
- General Surgery Department, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Shukun Zeng
- General Surgery Department, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Hu Cai
- General Surgery Department, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Guomin Zhu
- General Surgery Department, First Affiliated Hospital of Nanchang University, Jiangxi, China
- * Correspondence: Guomin Zhu, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China (e-mail: )
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Hashemi SM, Hashemi M, Bahari G, Khaledi A, Danesh H, Allahyari A. Relationship between rs6715345 Polymorphisms of MIR-375 Gene and rs4939827 of SMAD-7 Gene in Women with Breast Cancer and Healthy Women: A Case-Control Study. Asian Pac J Cancer Prev 2020; 21:2479-2484. [PMID: 32856881 PMCID: PMC7771934 DOI: 10.31557/apjcp.2020.21.8.2479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Today, the role of microRNAs in the pathogenesis of breast cancer has been established. Genetic mutations play a significant role in determining the risk factors of cancer. The polymorphism of these two genes can alter their expression. This study has been performed to investigate the relationship between polymorphisms of rs6715345 of miR-375 gene and rs4939827 of the SMAD7 gene and development of breast cancer in a population in southeastern Iran. METHODS This case-control study was performed on the blood sample of 205 patients with breast cancer and 225 healthy individuals for investigating the rs34917480 and rs4939827 polymorphisms using the PCR-RFLP method. The data were analyzed by t-test, χ2, and logistic regression. The SPSS v18.0 used for data analysis. RESULTS The findings of this study indicated that the risk of developing breast cancer does not have a significant relationship with rs6715345 polymorphism of miR-375 gene (p=0.1). However, the rs4939827 polymorphism of the SMAD7 gene was significantly linked to the risk of developing breast cancer in the southeastern population in Iran (p=0.01). CONCLUSION The results suggest that the rs4939827 polymorphism of the SMAD7 gene can lead to an increased risk of incidence of breast cancer in the southeastern population in Iran.<br />.
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Affiliation(s)
- Seyed-Mehdi Hashemi
- Clinical Immunology Research Center, Department Of Internal Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.,Hematology And Medical Oncology Ward, Ali-Ebne-Abitalelb Hospital, Zahedan University of Medical Science, Zahedan, Iran
| | - Mohammad Hashemi
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Gholamreza Bahari
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | | | - Hoseinali Danesh
- Plastic, Reconstructive & Aesthetic Surgeon, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Abolghasem Allahyari
- Department of Haematology and Medical Oncology, Mashhad University of Medical Sciences, Mashhad, Iran
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Fedirko V, Mandle HB, Zhu W, Hughes DJ, Siddiq A, Ferrari P, Romieu I, Riboli E, Bueno-de-Mesquita B, van Duijnhoven FJB, Siersema PD, Tjønneland A, Olsen A, Perduca V, Carbonnel F, Boutron-Ruault MC, Kühn T, Johnson T, Krasimira A, Trichopoulou A, Makrythanasis P, Thanos D, Panico S, Krogh V, Sacerdote C, Skeie G, Weiderpass E, Colorado-Yohar S, Sala N, Barricarte A, Sanchez MJ, Quirós R, Amiano P, Gylling B, Harlid S, Perez-Cornago A, Heath AK, Tsilidis KK, Aune D, Freisling H, Murphy N, Gunter MJ, Jenab M. Vitamin D-Related Genes, Blood Vitamin D Levels and Colorectal Cancer Risk in Western European Populations. Nutrients 2019; 11:E1954. [PMID: 31434255 PMCID: PMC6722852 DOI: 10.3390/nu11081954] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 12/11/2022] Open
Abstract
Higher circulating 25-hydroxyvitamin D levels (25(OH)D) have been found to be associated with lower risk for colorectal cancer (CRC) in prospective studies. Whether this association is modified by genetic variation in genes related to vitamin D metabolism and action has not been well studied in humans. We investigated 1307 functional and tagging single-nucleotide polymorphisms (SNPs; individually, and by gene/pathway) in 86 vitamin D-related genes in 1420 incident CRC cases matched to controls from the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. We also evaluated the association between these SNPs and circulating 25(OH)D in a subset of controls. We confirmed previously reported CRC risk associations between SNPs in the VDR, GC, and CYP27B1 genes. We also identified additional associations with 25(OH)D, as well as CRC risk, and several potentially novel SNPs in genes related to vitamin D transport and action (LRP2, CUBN, NCOA7, and HDAC9). However, none of these SNPs were statistically significant after Benjamini-Hochberg (BH) multiple testing correction. When assessed by a priori defined functional pathways, tumor growth factor β (TGFβ) signaling was associated with CRC risk (P ≤ 0.001), with most statistically significant genes being SMAD7 (PBH = 0.008) and SMAD3 (PBH = 0.008), and 18 SNPs in the vitamin D receptor (VDR) binding sites (P = 0.036). The 25(OH)D-gene pathway analysis suggested that genetic variants in the genes related to VDR complex formation and transcriptional activity are associated with CRC depending on 25(OH)D levels (interaction P = 0.041). Additional studies in large populations and consortia, especially with measured circulating 25(OH)D, are needed to confirm our findings.
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Affiliation(s)
- Veronika Fedirko
- Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA.
- Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA.
| | - Hannah B Mandle
- Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | - Wanzhe Zhu
- Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | - David J Hughes
- Cancer Biology and Therapeutics Group (CBT), Conway Institute, School of Biomolecular and Biomedical Science (SBBS), University College Dublin, Dublin, Ireland
| | - Afshan Siddiq
- Genomics England, London EC1M 6BQ, UK
- Imperial College London, London SW7 2AZ, UK
| | - Pietro Ferrari
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon 69372, France
| | - Isabelle Romieu
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon 69372, France
| | - Elio Riboli
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London SW7 2AZ, UK
| | - Bas Bueno-de-Mesquita
- Division of Human Nutrition & Health, Wageningen University & Research, 6700 AA Wageningen, The Netherlands
| | - Fränzel J B van Duijnhoven
- Division of Human Nutrition & Health, Wageningen University & Research, 6700 AA Wageningen, The Netherlands
| | - Peter D Siersema
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Anne Tjønneland
- Danish Cancer Society Research Center, 2100 Copenhagen, Denmark
| | - Anja Olsen
- Danish Cancer Society Research Center, 2100 Copenhagen, Denmark
| | - Vittorio Perduca
- Laboratoire de Mathématiques Appliquées MAP5, Université Paris Descartes, 75006 Paris, France
- CESP, Fac. de médecine-Univ. Paris-Sud, Fac. de médecine-UVSQ, INSERM, Université Paris-Saclay, F-94805 Villejuif, France
- Gustave Roussy, F-94805 Villejuif, France
| | - Franck Carbonnel
- CESP, Fac. de médecine-Univ. Paris-Sud, Fac. de médecine-UVSQ, INSERM, Université Paris-Saclay, F-94805 Villejuif, France
- Gustave Roussy, F-94805 Villejuif, France
- Department of Gastroenterology, Bicêtre University Hospital, Assistance Publique des Hôpitaux de Paris, 94270 Le Kremlin Bicêtre, France
| | - Marie-Christine Boutron-Ruault
- CESP, Fac. de médecine-Univ. Paris-Sud, Fac. de médecine-UVSQ, INSERM, Université Paris-Saclay, F-94805 Villejuif, France
- Gustave Roussy, F-94805 Villejuif, France
| | - Tilman Kühn
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Theron Johnson
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Aleksandrova Krasimira
- Nutrition, Immunity and Metabolism, Department of Epidemiology, German Institute for Human Nutrition Potsdam-Rehbrücke, Arthur-Scheunert Allee, 14558 Nuthetal, Germany
| | | | - Periklis Makrythanasis
- Hellenic Health Foundation, 115 27 Athens, Greece
- Biomedical Research Foundation of the Academy of Athens, 115 27 Athens, Greece
| | - Dimitris Thanos
- Hellenic Health Foundation, 115 27 Athens, Greece
- Biomedical Research Foundation of the Academy of Athens, 115 27 Athens, Greece
| | - Salvatore Panico
- Dipartimento Di Medicina Clinica E Chirurgia, Federico Ii University, 80138 Naples, Italy
| | - Vittorio Krogh
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian, 20133 Milano, Italy
| | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, Città della Salute e della Scienza University-Hospital and Center for Cancer Prevention (CPO), 10126 Turin, Italy
| | - Guri Skeie
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, 9019 Tromsø, Norway
| | - Elisabete Weiderpass
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, 9019 Tromsø, Norway
- Department of Research, Cancer Registry of Norway, Institute of Population-Based Cancer Research, N-0304 Oslo, Norway
- Department of Medical Epidemiology and Biostatistics, Karolinska Institut, SE-171 77 Stockholm, Sweden
- Genetic Epidemiology Group, Folkhälsan Research Center and Faculty of Medicine, Helsinki University, Helsinki 00014, Finland
- International Agency for Research on Cancer (IARC-WHO), Lyon 69372, France
| | - Sandra Colorado-Yohar
- Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia 30008, Spain
- CIBER Epidemiology and Public Healh (CIBERESP), Madrid 28029, Spain
- Research Group on Demography and Health, National Faculty of Public Health, University of Antioquia, Cl. 67 ##53-108 Medellín, Colombia
| | - Núria Sala
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, and Translational Research Laboratory, Catalan Institute of Oncology (ICO)-IDIBELL, 08908 Barcelona, Spain
| | - Aurelio Barricarte
- CIBER Epidemiology and Public Healh (CIBERESP), Madrid 28029, Spain
- Navarra Public Health Institute, Pamplona 31008, Spain
| | - Maria-Jose Sanchez
- CIBER Epidemiology and Public Healh (CIBERESP), Madrid 28029, Spain
- Escuela Andaluza de Salud Pública, Instituto de Investigación Biosanitaria (ibs.GRANADA), Granada 18012, Spain
| | - Ramón Quirós
- Public Health Directorate, Asturias 33006, Spain
| | - Pilar Amiano
- CIBER Epidemiology and Public Healh (CIBERESP), Madrid 28029, Spain
- Public Health Division of Gipuzkoa, BioDonostia Research Institute, San Sebastian 20014, Spain
| | - Björn Gylling
- Department of Medical Biosciences, Pathology, Umeå University, 901 87 Umeå, Sweden
| | - Sophia Harlid
- Department of Radiation Sciences, Oncology, Umeå University, 901 87 Umeå, Sweden
| | - Aurora Perez-Cornago
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - Alicia K Heath
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London SW7 2AZ, UK
| | - Konstantinos K Tsilidis
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London SW7 2AZ, UK
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina 45110, Greece
| | - Dagfinn Aune
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London SW7 2AZ, UK
- Department of Nutrition, Bjørknes University College, 0456 Oslo, Norway
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, 0372 Oslo, Norway
| | - Heinz Freisling
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon 69372, France
| | - Neil Murphy
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon 69372, France
| | - Marc J Gunter
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon 69372, France
| | - Mazda Jenab
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon 69372, France.
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Single Nucleotide Polymorphism in SMAD7 and CHI3L1 and Colorectal Cancer Risk. Mediators Inflamm 2018; 2018:9853192. [PMID: 30498395 PMCID: PMC6222239 DOI: 10.1155/2018/9853192] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/01/2018] [Accepted: 08/16/2018] [Indexed: 02/08/2023] Open
Abstract
Colorectal cancer (CRC) is one of the leading cancers throughout the world. It represents the third most common cancer and the fourth in mortality. Most of CRC are sporadic, arise with no known high-penetrant genetic variation and with no previous family history. The etiology of sporadic CRC is considered to be multifactorial and arises from the interaction of genetic variants of low-penetrant genes and environmental risk factors. The most common well-studied genetic variation is single nucleotide polymorphisms (SNPs). SNP arises as a point mutation. If the frequency of the sequence variation reaches 1% or more in the population, it is referred to as polymorphism, but if it is lower than 1%, the allele is typically considered as a mutation. Lots of SNPs have been associated with CRC development and progression, for example, genes of TGF-β1 and CHI3L1 pathways. TGF-β1 is a pleiotropic cytokine with a dual role in cancer development and progression. TGF-β1 mediates its actions through canonical and noncanonical pathways. The most important negative regulatory protein for TGF-β1 activity is termed SMAD7. The production of TGF-β can be controlled by another protein called YKL-40. YKL-40 is a glycoprotein with an important role in cancer initiation and metastasis. YKL-40 is encoded by the CHI3L1 gene. The aim of the present review is to give a brief introduction of CRC, SNP, and examples of some SNPs that have been documented to be associated with CRC. We also discuss two important signaling pathways TGF-β1 and CHI3L1 that influence the incidence and progression of CRC.
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SMAD7 polymorphisms and colorectal cancer risk: a meta-analysis of case-control studies. Oncotarget 2018; 7:75561-75570. [PMID: 28070019 PMCID: PMC5342761 DOI: 10.18632/oncotarget.12285] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 09/14/2016] [Indexed: 01/29/2023] Open
Abstract
Mothers against decapentaplegic homolog 7 (SMAD7) inhibits the transforming growth factor-β (TGF-β) signaling pathway, which regulates carcinogenesis and cancer progression. A number of studies have reported that SMAD7 polymorphisms (rs4464148, rs4939827, and rs12953717) are associated with colorectal cancer (CRC) risk, but the results from these studies remain conflicting. To determine a more precise estimation of the relationship between SMAD7 and CRC, we undertook a large-scale meta-analysis of 63 studies, which included a total of 187,181 subjects (86,585 cases and 100,596 controls). The results of our meta-analysis revealed that the C allele of rs4464148 [CC vs. TT+TC, odds ratio (OR) =1.23, 95% confidence interval (CI): 1.14–1.33, P < 0.01], the T allele of rs4939827 [TT vs. CC+TC, odds ratio OR=1.15, 95%CI:1.07–1.22, P < 0.01] and the T allele of rs12953717 [TT vs. CC+TC, OR =1.22, 95%CI:1.16–1.29, P < 0.01] were all associated with the increased CRC risk. Subgroup analysis according to ethnicity showed rs4464148 and rs12953717 were associated with the risk of CRC in both Caucasians and Asians, whereas rs4939827 was a risk polymorphism for CRC specifically in Caucasians. In summary, this large-scale meta-analysis indicated that SMAD7 polymorphisms (rs4464148, rs4939827, and rs12953717) correlate with CRC.
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Shaker OG, Mohammed SR, Mohammed AM, Mahmoud Z. Impact of microRNA-375 and its target gene SMAD-7 polymorphism on susceptibility of colorectal cancer. J Clin Lab Anal 2018; 32:e22215. [PMID: 28374902 PMCID: PMC6817095 DOI: 10.1002/jcla.22215] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 02/27/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) has a high morbidity and mortality. Many studies reported that mir-375 is frequently down-regulated in many cancers including esophageal cancer, hepatocellular carcinoma, breast cancer and leukemias. AIM Our aim was to study the expression of microRNA-375 and its target gene SMAD-7 polymorphisms (rs4939827) in CRC patients in comparison to control subjects and to correlate these results with clinical data of patients to elucidate their role in pathogenesis and early diagnosis of CRC. MATERIAL AND METHODS The present study was conducted on 122 subjects divided into 86 patients with CRC and 36 age- and sex-matched controls. The followings were done to all subjects: full history taking, full clinical examination, complete blood picture, serum (ALT, AST), serum albumin, CEA, TLC, PLT, and creatinine. Gene expression of miRNA-375 from serum was done by real-time PCR. Gene polymorphism SNPs of SMAD7 (rs4939827) was also done in DNA extracted from blood by real-time PCR. RESULTS As regards the polymorphism of SMAD7, we found that CC (wild) genotype has high percentage in controls compared to CRC cases (36.1% vs 15.1%). Meanwhile, the mutant and heterozygotes genotypes showed high percentage among cases compared to controls (33.7%, and 51.2% respectively) vs (22.2%, and 41.7% respectively) with no significant statistical analysis. There was a statistically significant high T-allelic frequency among cases and C-allelic frequency among controls. There was a statistically significant association between fold change in micro RNA (-375) and the susceptibility to CRC as there is down-regulation of the microRNA-375 in CRC group with fold change in 0.42±0.27. CONCLUSION Micro RNA-375 and rs4939827 SNP in SMAD7 could be considered as potential markers for detecting and early diagnosing CRC patients.
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Affiliation(s)
- Olfat Gamil Shaker
- Biochemistry and Molecular BiologyFaculty of MedicineCairo UniversityCairoEgypt
| | - Shereen Rashad Mohammed
- Departments of Medical Biochemistry and Molecular BiologyFaculty of MedicineFayoum UniversityAl FayoumEgypt
| | - Asmaa Mohammed Mohammed
- Departments of Medical Biochemistry and Molecular BiologyFaculty of MedicineFayoum UniversityAl FayoumEgypt
| | - Zeinab Mahmoud
- Departments of Tropical MedicineFaculty of MedicineCairo UniversityCairoEgypt
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SYNJ2 Variant Rs9365723 is Associated with Colorectal Cancer Risk in Chinese Han Population. Int J Biol Markers 2016; 31:e138-43. [PMID: 26616230 DOI: 10.5301/jbm.5000182] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2015] [Indexed: 12/17/2022]
Abstract
Purpose Colorectal cancer (CRC) is the third most common cancer and fourth leading cause of cancer mortality, and twin studies have shown that approximately 35% of the variation in susceptibility to CRC involves inherited genetic differences. We sought to investigate potential genetic associations between some single nucleotide polymorphisms (SNPs) and the risk of CRC in the Chinese Han population. Methods We conducted a case-control study including 269 cases and 309 controls. Sixteen SNPs associated with CRC risk were selected from previous genome-wide association studies and genotyped using Sequenom MassARRAY technology. Odds ratios and 95% confidence intervals (CIs) were calculated by unconditional logistic regression adjusting for age and gender. Results Using the chi-squared test we found that rs9365723 was associated with CRC risk (p = 0.012). With genetic model analysis, the genotype A/G-G/G (OR = 1.50; 95% CI 1.02-2.21; p = 0.038) of rs9365723 showed an increased risk of CRC in the dominant model. Furthermore, we found that rs9365723 was associated with an increased risk only for colon cancer but not rectal cancer (p = 0.009 and p = 0.414, respectively). Conclusions Our results, combined with previous studies, suggest that rs9365723, located on SYNJ2, is associated with the risk of CRC in a Chinese population. Thus, SYNJ2 may play a role in the development of CRC, especially colon cancer.
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Yao K, Hua L, Wei L, Meng J, Hu J. Correlation Between CASC8, SMAD7 Polymorphisms and the Susceptibility to Colorectal Cancer: An Updated Meta-Analysis Based on GWAS Results. Medicine (Baltimore) 2015; 94:e1884. [PMID: 26579801 PMCID: PMC4652810 DOI: 10.1097/md.0000000000001884] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Genome-wide association studies (GWASs) and a number of case-control studies have suggested that several single nucleotide polymorphisms (SNPs), rs7837328, rs7014346, rs6983267, rs10505477 on CASC8 gene and rs4939827, rs4464148, rs12953717 on SMAD7 gene are significantly correlated with the susceptibility to colorectal cancer (CRC). For the sake of clarifying the association, a meta-analysis was conducted and population heterogeneity was considered in the study.A total of 34 articles including 90 studies (168,471 cases and 163,223 controls) that evaluated the relationship between the CASC8, SMAD7 genes and the risk of CRC under the allelic model were reviewed. Also subgroup analysis was performed by ethnicity (Caucasian, Asian, and African) and all of the analyses were implemented in R 3.2.1 software.Pooled data from the meta-analysis revealed that the A allele of rs7837328, the A allele of rs7014346, the G allele of rs6983267, the A allele of rs10505477, the T allele of rs4939827, the T of rs4464148, and the T of rs12953717 were significantly associated with an increased risk of CRC under the allelic model. Additionally, subgroup analyses of 6 SNPs by ethnicity (rs4464148 excepted) witnessed that the A allele of rs7837328, the G allele of rs6983267, and the T of rs12953717 were notably associated with an increased risk of CRC among Caucasian and Asian. Furthermore, the A allele of rs7014346, the A allele of rs10505477, and the T allele of rs4939827 were significantly related with an elevated risk of CRC only among Caucasian.Our study suggested that for CASC8 gene, SNP of rs7837328 and rs6983267 are risk factors for CRC among both Caucasian and Asian whereas rs7014346 and rs10505477 are risky gene polymorphisms only among Caucasian. For SMAD7 gene, rs4939827 and rs4464148 are risk factors for CRC among Caucasian whereas rs12953717 could elevate the susceptibility to CRC in both Caucasian and Asian.
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Affiliation(s)
- Kunhou Yao
- From the Department of General Surgery, Huaihe Hospital of Henan University, Kaifeng, Henan Province, China (KY, LH, JM, JH); and Department of Digestive Medicine, Huaihe Hospital of Henan University, Kaifeng, Henan Province, China (LW)
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Analyzing large-scale samples confirms the association between rs16892766 polymorphism and colorectal cancer susceptibility. Sci Rep 2015; 5:7957. [PMID: 25609216 PMCID: PMC4302297 DOI: 10.1038/srep07957] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 12/24/2014] [Indexed: 12/25/2022] Open
Abstract
Colorectal cancer (CRC) is a common complex disease caused by the combination of genetic variants and environmental factors. Genome-wide association studies (GWAS) have been performed and reported some novel CRC susceptibility variants. The rs16892766 (8q23.3) polymorphism was first identified to be significantly associated with CRC in European ancestry. The following studies investigated this association in Chinese, Japanese, Romanian, Swedish, African American, European American, and Croatian populations. These studies reported consistent and inconsistent results. Here, we reevaluated this association using the relatively large-scale samples from 13 studies (N = 59737, 26237 cases and 33500 controls) using a meta-analysis by searching the PubMed, Google Scholar and CRCgene databases. We observed no significant heterogeneity among the included studies. Our results showed significant association between rs16892766 polymorphism and CRC (P = 1.33E-35, OR = 1.23, 95% CI 1.20-1.27). Collectively, our analysis further supports previous findings that the rs16892766 polymorphism is significantly associated with CRC susceptibility. We believe that our findings will be very useful for future genetic studies on CRC.
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Sherman SK, Maxwell JE, Qian Q, Bellizzi AM, Braun TA, Iannettoni MD, Darbro BW, Howe JR. Esophageal cancer in a family with hamartomatous tumors and germline PTEN frameshift and SMAD7 missense mutations. Cancer Genet 2014; 208:41-6. [PMID: 25554686 DOI: 10.1016/j.cancergen.2014.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 10/29/2014] [Accepted: 11/02/2014] [Indexed: 12/26/2022]
Abstract
Germline mutations in the PTEN tumor-suppressor gene cause autosomal-dominant conditions such as Cowden and Bannayan-Riley-Ruvalcaba syndromes with variable presentations, including hamartomatous gastrointestinal tumors, dermatologic abnormalities, neurologic symptoms, and elevated cancer risk. We describe a father and son with extensive hamartomatous gastrointestinal polyposis who both developed early-onset esophageal cancer. Exome sequencing identified a novel germline PTEN frameshift mutation (c.568_569insC, p.V191Sfs*11). In addition, a missense mutation of SMAD7 (c.115G>A, p.G39R) with an allele frequency of 0.3% in the Exome Variant Server was detected in both affected individuals. Fluorescence in situ hybridization for PTEN in the resected esophageal cancer specimen demonstrated no PTEN copy loss in malignant cells; however, results of an immunohistochemical analysis demonstrated a loss of PTEN protein expression. While the risks of many cancers are elevated in the PTEN hamartoma tumor syndromes, association between esophageal adenocarcinoma and these syndromes has not been previously reported. Esophageal adenocarcinoma and extensive polyposis/ganglioneuromatosis could represent less common features of these syndromes, potentially correlating with this novel PTEN frameshift and early protein termination genotype. Alternatively, because simultaneous disruption of both the PTEN and TGF-β/SMAD4 pathways is associated with development of esophageal cancer in a mouse model and because SMAD4 mutations cause gastrointestinal hamartomas in juvenile polyposis syndrome, the SMAD7 mutation may represent an additional modifier of these individuals' PTEN-mutant phenotype.
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Affiliation(s)
- Scott K Sherman
- Department of General Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Jessica E Maxwell
- Department of General Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Qining Qian
- Department of Cytogenetics/Pediatrics, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Andrew M Bellizzi
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Terry A Braun
- Department of Ophthalmology, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Mark D Iannettoni
- Department of Thoracic Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Benjamin W Darbro
- Department of Cytogenetics/Pediatrics, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - James R Howe
- Department of General Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
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Quantitative assessment of the influence of common variation rs16892766 at 8q23.3 with colorectal adenoma and cancer susceptibility. Mol Genet Genomics 2014; 290:461-9. [DOI: 10.1007/s00438-014-0928-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 09/19/2014] [Indexed: 01/04/2023]
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Akbari Z, Safari-Alighiarloo N, Taleghani MY, Mirfakhar FS, Asadzadeh Aghdaei H, Vahedi M, Irani Shemirani A, Nazemalhosseini-Mojarad E, Zali MR. Polymorphism of SMAD7 gene (rs2337104) and risk of colorectal cancer in an Iranian population: a case-control study. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2014; 7:198-205. [PMID: 25289133 PMCID: PMC4185873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 07/22/2014] [Indexed: 11/13/2022]
Abstract
AIM The purpose of this study was to evaluate the influence of intronic polymorphism of the SMAD7 (Mothers Against Decantaplegic Homolog 7) gene (rs2337104) on the risk of colorectal cancer (CRC) and clinicopathological features in an Iranian population. BACKGROUND SMAD7 has been identified as an antagonist of transforming growth factor beta (TGF-b)-mediating fibrosis, carcinogenesis, and inflammation. Regarding to the recent genome-wide scan, a risk locus for colorectal cancer at 18q21 has been found, which maps to the SMAD7 gene. PATIENTS AND METHODS This case-control study was performed on 109 CRC patients and 109 healthy controls recruited in Taleghani Hospital. The genotyping of all samples were done by TaqMan assay via an ABI 7500 Real Time PCR System (Applied Biosystems) with DNA from peripheral blood. The association of this polymorphism with the risk of CRC and clinicopathological features was investigated. RESULTS Our results indicated that there were no significant association between genotypic and allelic frequencies of SMAD7 polymorphism (rs2337104) and CRC risk in our population. Although the T allele is the most frequent one in this population and its frequency was 86.7% in patients compared with 91.7% in controls (OR=1.705, 95% CI= 0.916-3.172). Also, the SMAD7 genotypes were not associated with any clinicopathological characteristics in CRC patients (P>0.05). CONCLUSION For the first time, this study results revealed that this SMAD7 polymorphism couldn't be a potential risk factor for CRC or a prognostic biomarker for prediction of clinicopathological features in an Iranian population. A large-scale case-control study is needed to validate our results.
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Affiliation(s)
- Zahra Akbari
- Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nahid Safari-Alighiarloo
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Yaghoob Taleghani
- Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzaneh Sadat Mirfakhar
- Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Vahedi
- Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atena Irani Shemirani
- Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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