AA genotype of cyclin D1 G870A polymorphism increases breast cancer risk: Findings of a case‐control study and meta‐analysis. Issue 10 (26th June 2019)

• Record Type: Journal Article
• Authors: Akhter, Naseem; Alzahrani, Faisal Abdulrahman; Dar, Sajad Ahmad; Wahid, Mohd; Sattar, Real Sumayya Abdul; Hussain, Showket; Haque, Shafiul; Ansari, Shakeel Ahmed; Jawed, Arshad; Mandal, Raju K.; Almalki, Shaia; Alharbi, Raed A.; Husain, Syed Akhtar
• Is Part Of: Journal of cellular biochemistry. Volume 120:Issue 10(2019)
• Page Start: 16452
• Page End: 16466
• Publication Date: 2019-06-26
• Subjects: breast cancer -- case‐control -- CCND1 G870A SNP -- meta‐analysis; Cytochemistry -- Periodicals; 572
• DOI: 10.1002/jcb.28800
• Languages: English
• ISSNs: 0730-2312

Abstract

Abstract: Background: Cyclin D1 (CCND1) polymorphisms, a regulator of the cell cycle progress from G1 to the S phase, may lead to uncontrolled cell proliferation and lack of apoptosis. G870A, a common single‐nucleotide polymorphism in CCND1 influences breast cancer risk. However, the association between G870A polymorphism and breast cancer risk is ambiguous so far. Materials and Methods: In this case‐control study, we analyzed the role of G870A polymorphism with breast cancer risk in Indian women. A meta‐analysis of 18 studies was also performed to elucidate this association by increasing statistical power. Results: In our case‐control study, significant risk association of the CCND1 G870A AA genotype with breast cancer in total cohort (odds ratio [OR], 2.98; 95% confidence interval [CI], 1.64‐5.42; P value, 4.96e‐04) and premenopausal women (OR, 3.31; 95% CI, 1.54‐7.08; P value, .003) was found. The results of the meta‐analysis showed that AA genotype of the CCND1 G870A polymorphism significantly increases breast cancer risk in total pooled data (AA vs GG+GA: OR = 1.20; 95% CI = 1.03 to 1.39; P value, 0.016*) and Caucasian (AA vs GG+GA: OR = 1.22; 95% CI = 0.99 to 1.51; P value, .056*) but not in Asian population. Further, a significant protective association with breast cancer was also found in the GA vs AA comparison model in pooled data (OR = 0.73; 95% CI = 0.58 to 0.92; P value, .007*) as well as in Caucasian subgroup (OR = 0.62; 95% CI = 0.49 to 0.94; P value, .022*). Conclusion: CCND1 G870A AA genotype was found associated with breast cancer risk. Future association studies considering the environmental impact on gene expression are required to validate/explore this association. Abstract : Cyclin D1 polymorphisms may lead to uncontrolled cell proliferation. G870A single‐nucleotide polymorphism influences breast cancer risk. Our study shows that AA genotype is significantly associated with breast cancer risk.