Abstract:
BACKGROUND:Energy metabolism is important in cancer proliferation and progression, but its role in prostate cancer (PCa) remains unclear. OBJECTIVE:We explored whether single-nucleotide polymorphisms (SNPs) of genes involved in energy metabolic pathways are associated with PCa risk and prognosis, and whether antidiabetic treatment modifies any such association. DESIGN, SETTING, AND PARTICIPANTS:The PRACTICAL Consortium genotyped 397 SNPs among 3241 screened participants (including 801 PCa cases) in the Finnish Prostate Cancer Screening Trial and 1983 hospital-based PCa cases. Information on medication use was obtained from a national prescription database. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS:Genetic risk scores were calculated in terms of SNPs associated with PCa incidence or survival at a significance level of p < 5×10(-3). Hazard ratios for PCa and disease-specific death were calculated via Cox regression modelling. The predictive value of the genetic risk score was evaluated using receiver operating characteristic and Harrell's c-index analyses. RESULTS AND LIMITATIONS:A total of 30 SNPs were associated with PCa risk and ten SNPs with survival. The genetic risk score was consistently associated with PCa survival. The risk association was non-significantly weaker in metformin users. The genetic risk score did not improve prediction of PCa risk, but slightly improved the ability to predict PCa survival when added to conventional predictors (c-index improved from 87.4 to 87.9; p<0.001). A limitation is that information on diabetes apart from medication use was unavailable for the study population. CONCLUSIONS:SNPs of genes involved in energy metabolic pathways are associated with PCa survival. This suggests an important role of glucose metabolism in PCa progression, which could point to new avenues for prevention of PCa death. PATIENT SUMMARY:Genetic changes in glucose and energy metabolic pathways are associated with a higher risk of high-risk prostate cancer and adverse outcomes.
journal_name
Eur Uroljournal_title
European urologyauthors
Murtola TJ,Wahlfors T,Haring A,Taari K,Stenman UH,Tammela TL,PRACTICAL Consortium.,Schleutker J,Auvinen Adoi
10.1016/j.eururo.2015.03.026subject
Has Abstractpub_date
2015-12-01 00:00:00pages
1089-97issue
6eissn
0302-2838issn
1873-7560pii
S0302-2838(15)00245-6journal_volume
68pub_type
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