Diabetes genes and prostate cancer in the Atherosclerosis Risk in Communities study.

Meyer TE, Boerwinkle E, Morrison AC, Volcik KA, Sanderson M, Coker AL, Pankow JS, Folsom AR
Cancer Epidemiol Biomarkers Prev. 2010 19 (2): 558-65

PMID: 20142250 · PMCID: PMC2820124 · DOI:10.1158/1055-9965.EPI-09-0902

There is a known inverse association between type 2 diabetes (T2D) and prostate cancer (PrCa) that is poorly understood. Genetic studies of the T2D-PrCa association may provide insight into the underlying mechanisms of this association. We evaluated associations in the Atherosclerosis Risk in Communities study between PrCa and nine T2D single nucleotide polymorphisms from genome-wide association studies of T2D (in CDKAL1, CDKN2A/B, FTO, HHEX, IGF2BP2, KCNJ11, PPARG, SLC30A8, and TCF7L2) and four T2D single nucleotide polymorphisms from pre-genome-wide association studies (in ADRB2, CAPN10, SLC2A2, and UCP2). From 1987 to 2000, there were 397 incident PrCa cases among 6,642 men ages 45 to 64 years at baseline. We used race-adjusted Cox proportional hazards models to estimate associations between PrCa and increasing number of T2D risk-raising alleles. PrCa was positively associated with the CAPN10 rs3792267 G allele [hazard ratio (HR) 1.20; 95% confidence interval (CI), 1.00-1.44] and inversely associated with the SLC2A2 rs5400 Thr110 allele (HR, 0.85; 95% CI, 0.72, 1.00), the UCP2 rs660339 Val55 allele (HR, 0.84; 95% CI, 0.73, 0.97) and the IGF2BP2 rs4402960 T allele (HR, 0.79; 95% CI, 0.61-1.02; blacks only). The TCF7L2 rs7903146 T allele was inversely associated with PrCa using a dominant genetic model (HR, 0.79; 95% CI, 0.65-0.97). Further knowledge of T2D gene-PrCa mechanisms may improve understanding of PrCa etiology.

MeSH Terms (19)

Atherosclerosis Calpain Cohort Studies Diabetes Mellitus, Type 2 Genetic Predisposition to Disease Genome-Wide Association Study Glucose Transporter Type 2 Humans Ion Channels Male Middle Aged Mitochondrial Proteins Polymorphism, Single Nucleotide Proportional Hazards Models Prostatic Neoplasms RNA-Binding Proteins TCF Transcription Factors Transcription Factor 7-Like 2 Protein Uncoupling Protein 2

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