An examination of clinical differences between carriers and non-carriers of chromosome 8q24 risk alleles in a New Zealand Caucasian population with prostate cancer

PeerJ

article

Karen S. Bishop¹  Dug Yeo Han²  Nishi Karunasinghe¹  Megan Goudie⁴  Jonathan G. Masters⁴  Lynnette R. Ferguson¹ 

[1] Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland;Nutrigenomics New Zealand, University of Auckland;Discipline of Nutrition and Dietetics, Faculty of Medical and Health Sciences, University of Auckland;Urology Department, Auckland District Health Board

关键词: Prostate cancer;    Single nucleotide polymorphisms;    Risk factors;    8q24;    Genetic risk score;    Smoking;   

DOI  :  10.7717/peerj.1731

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Background. Prostate cancer makes up approximately 15% of all cancers diagnosed in men in developed nations and approximately 4% of cases in developing nations. Although it is clear that prostate cancer has a genetic component and single nucleotide polymorphisms (SNPs) can contribute to prostate cancer risk, detecting associations is difficult in multi-factorial diseases, as environmental and lifestyle factors also play a role. In this study, specific clinical characteristics, environmental factors and genetic risk factors were assessed for interaction with prostate cancer.Methods. A total of 489 prostate cancer cases and 427 healthy controls were genotyped for SNPs found on chromosome 8q24 and a genetic risk score was calculated. In addition the SNPs were tested for an association with a number of clinical and environmental factors.Results. Age and tobacco use were positively associated, whilst alcohol consumption was negatively associated with prostate cancer risk. The following SNPs found on chromosome 8q24 were statistically significantly associated with prostate cancer: rs10086908, rs16901979; rs1447295and rs4242382. No association between Gleason score and smoking status, or between Gleason score and genotype were detected.Conclusion. A genetic risk score was calculated based on the 15 SNPs tested and found to be significantly associated with prostate cancer risk. Smoking significantly contributed to the risk of developing prostate cancer, and this risk was further increased by the presence of four SNPs in the 8q24 chromosomal region.

【 授权许可】

CC BY