PMID- 24489939 OWN - NLM STAT- MEDLINE DCOM- 20141006 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 1 DP - 2014 TI - Association of matrix metalloproteinase-3 -1171(5A>6A) polymorphism with cancer risk: a meta-analysis of 41 studies. PG - e87562 LID - 10.1371/journal.pone.0087562 [doi] LID - e87562 AB - BACKGROUND AND OBJECTIVE: Evidence has shown that matrix metalloproteinases-3 (MMP3) is important for cancer progression. Recent studies about the association between the -1171(5A>6A) polymorphism in MMP3 promoter region and cancer risk have yielded conflicting results. METHODOLOGY/PRINCIPAL FINDINGS: We performed a meta-analysis of 41 studies including 11112 cases and 11091 controls to determine whether the -1171(5A>6A) polymorphism of MMP3 was associated with cancer risk. We assessed the strength of association and performed sub-group analyses by cancer types, ethnicity, smoking status, genotyping method, source of controls and sample size. The pooled results revealed that no significant association of the -1171(5A>6A) polymorphism with overall cancer risk in any of four models. Further sub-group analysis revealed that individuals with the 6A allele had lower risk of gastrointestinal cancer in two models: heterozygote comparison (6A/5A vs. 5A/5A: OR=0.74, 95%CI: 0.60-0.91; I(2)=1.9%), and dominant model (6A/6A+6A/5A vs. 5A/5A: OR=0.77, 95%CI: 0.64-0.94; I(2)=29.0%). Additionally, the associations were significant in Asian populations for three models: homozygote comparison (6A/6A vs. 5A/5A, OR=0.68, 95%CI: 0.52-0.90; I(2)=26.7%), heterozygote comparison (6A/5A vs. 5A/5A: OR=0.75, 95%CI: 0.58-0.98; I(2)=0.0%), and dominant model (6A/6A+6A/5A vs. 5A/5A: OR=0.69, 95%CI: 0.54-0.88; I(2)=0.5%). It was noteworthy that we had a contrary finding in non-smokers: the variant 6A/6A homozygote might statistically increase cancer risk compared with 6A/5A+5A/5A genotype (OR=1.92, 95%CI: 1.25-2.96; I(2)=72.7%). CONCLUSION: This meta-analysis suggests that the -1171(5A>6A) polymorphism in MMP3 promoter region is not associated with overall cancer risk, but it may contribute to decreased cancer risk in Asian population when compared with Caucasian population and significantly reduce the risk of gastrointestinal cancer. FAU - Yang, Xin AU - Yang X AD - The First Clinical College of Nanjing Medical University, Nanjing, China ; Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China ; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, China. FAU - Hu, Jing-Wen AU - Hu JW AD - Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China ; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, China. FAU - Qiu, Man-Tang AU - Qiu MT AD - Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China ; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, China. FAU - Li, Ming AU - Li M AD - Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China ; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, China. FAU - Yin, Rong AU - Yin R AD - Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China ; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, China. FAU - Wang, Jie AU - Wang J AD - Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, China ; Department of Scientific Research, Nanjing Medical University Affiliated Cancer Hospital Cancer Institute of Jiangsu Province, Nanjing, China. FAU - Xu, Lin AU - Xu L AD - Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China ; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, China. FAU - Zhang, Qin AU - Zhang Q AD - Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China ; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, China. LA - eng PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't DEP - 20140129 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - EC 3.4.24.17 (MMP3 protein, human) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) SB - IM MH - Case-Control Studies MH - Genetic Association Studies MH - Genetic Predisposition to Disease MH - Humans MH - INDEL Mutation MH - Matrix Metalloproteinase 3/*genetics MH - Neoplasms/*genetics MH - Polymorphism, Genetic MH - Risk PMC - PMC3906197 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/02/04 06:00 MHDA- 2014/10/07 06:00 PMCR- 2014/01/29 CRDT- 2014/02/04 06:00 PHST- 2013/10/08 00:00 [received] PHST- 2013/12/21 00:00 [accepted] PHST- 2014/02/04 06:00 [entrez] PHST- 2014/02/04 06:00 [pubmed] PHST- 2014/10/07 06:00 [medline] PHST- 2014/01/29 00:00 [pmc-release] AID - PONE-D-13-41143 [pii] AID - 10.1371/journal.pone.0087562 [doi] PST - epublish SO - PLoS One. 2014 Jan 29;9(1):e87562. doi: 10.1371/journal.pone.0087562. eCollection 2014.