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Title: MicroRNA Related Polymorphisms and Breast Cancer Risk.
Authors: Khan S,  Greco D,  Michailidou K,  Milne RL,  Muranen TA,  Heikkinen T,  Aaltonen K,  Dennis J,  Bolla MK,  Liu J,  Hall P,  Irwanto A,  Humphreys K,  Li J,  Czene K,  Chang-Claude J,  Hein R,  Rudolph A,  Seibold P,  Flesch-Janys D,  Fletcher O,  Peto J,  Dos Santos Silva I,  Johnson N,  Gibson L,  Aitken Z,  Hopper JL,  Tsimiklis H,  Bui M,  Makalic E,  Schmidt DF,  Southey MC,  Apicella C,  Stone J,  Waisfisz Q,  Meijers-Heijboer H,  Adank MA,  van der Luijt RB,  Meindl A,  Schmutzler RK,  Müller-Myhsok B,  Lichtner P,  Turnbull C,  Rahman N,  Chanock SJ,  Hunter DJ,  Cox A,  Cross SS,  Reed MW,  Schmidt MK,  Broeks A,  Veer LJ,  Hogervorst FB,  Fasching PA,  Schrauder MG,  Ekici AB,  Beckmann MW,  Bojesen SE,  Nordestgaard BG,  Nielsen SF,  Flyger H,  Benitez J,  Zamora PM,  Perez JI,  Haiman CA,  Henderson BE,  Schumacher F,  Le Marchand L,  Pharoah PD,  Dunning AM,  Shah M,  Luben R,  Brown J,  Couch FJ,  Wang X,  Vachon C,  Olson JE,  Lambrechts D,  Moisse M,  Paridaens R,  Christiaens MR,  Guénel P,  Truong T,  Laurent-Puig P,  Mulot C,  Marme F,  Burwinkel B,  Schneeweiss A,  Sohn C,  Sawyer EJ,  Tomlinson I,  Kerin MJ,  Miller N,  Andrulis IL,  Knight JA,  Tchatchou S,  Mulligan AM,  Dörk T,  Bogdanova NV,  Antonenkova NN,  Anton-Culver H,  Darabi H,  Eriksson M,  Garcia-Closas M,  Figueroa J,  Lissowska J,  Brinton L,  Devilee P,  Tollenaar RA,  Seynaeve C,  van Asperen CJ,  Kristensen VN,  kConFab Investigators,  Australian Ovarian Cancer Study Group,  Slager S,  Toland AE,  Ambrosone CB,  Yannoukakos D,  Lindblom A,  Margolin S,  Radice P,  Peterlongo P,  Barile M,  Mariani P,  Hooning MJ,  Martens JW,  Collée JM,  Jager A,  Jakubowska A,  Lubinski J,  Jaworska-Bieniek K,  Durda K,  Giles GG,  McLean C,  Brauch H,  Brüning T,  Ko YD,  GENICA Network,  Brenner H,  Dieffenbach AK,  Arndt V,  Stegmaier C,  Swerdlow A,  Ashworth A,  Orr N,  Jones M,  Simard J,  Goldberg MS,  Labrèche F,  Dumont M,  Winqvist R,  Pylkäs K,  Jukkola-Vuorinen A,  Grip M,  Kataja V,  Kosma VM,  Hartikainen JM,  Mannermaa A,  Hamann U,  Chenevix-Trench G,  Blomqvist C,  Aittomäki K,  Easton DF,  Nevanlinna H
Journal: PLoS One
Date: 2014
Branches: HREB, OD
PubMed ID: 25390939
PMC ID: not available
Abstract: Genetic variations, such as single nucleotide polymorphisms (SNPs) in microRNAs (miRNA) or in the miRNA binding sites may affect the miRNA dependent gene expression regulation, which has been implicated in various cancers, including breast cancer, and may alter individual susceptibility to cancer. We investigated associations between miRNA related SNPs and breast cancer risk. First we evaluated 2,196 SNPs in a case-control study combining nine genome wide association studies (GWAS). Second, we further investigated 42 SNPs with suggestive evidence for association using 41,785 cases and 41,880 controls from 41 studies included in the Breast Cancer Association Consortium (BCAC). Combining the GWAS and BCAC data within a meta-analysis, we estimated main effects on breast cancer risk as well as risks for estrogen receptor (ER) and age defined subgroups. Five miRNA binding site SNPs associated significantly with breast cancer risk: rs1045494 (odds ratio (OR) 0.92; 95% confidence interval (CI): 0.88-0.96), rs1052532 (OR 0.97; 95% CI: 0.95-0.99), rs10719 (OR 0.97; 95% CI: 0.94-0.99), rs4687554 (OR 0.97; 95% CI: 0.95-0.99, and rs3134615 (OR 1.03; 95% CI: 1.01-1.05) located in the 3' UTR of CASP8, HDDC3, DROSHA, MUSTN1, and MYCL1, respectively. DROSHA belongs to miRNA machinery genes and has a central role in initial miRNA processing. The remaining genes are involved in different molecular functions, including apoptosis and gene expression regulation. Further studies are warranted to elucidate whether the miRNA binding site SNPs are the causative variants for the observed risk effects.