Association analysis of p16 (CDKN2A) and RB1 polymorphisms with susceptibility to cervical cancer in Indian population

Thakur, Nisha ; Hussain, Showket ; Nasare, Vilas ; Das, Bhudev C. ; Basir, Seemi Farhat ; Bharadwaj, Mausumi (2011) Association analysis of p16 (CDKN2A) and RB1 polymorphisms with susceptibility to cervical cancer in Indian population Molecular Biology Reports . No PP. Given.. ISSN 0301-4851

Full text not available from this repository.

Official URL: http://www.springerlink.com/content/ht743172702188...

Related URL: http://dx.doi.org/10.1007/s11033-011-0752-z

Abstract

The potent tumor suppressors P16 and RB1 are the key regulators of cell cycle machinery in eukaryotes. Polymorphisms in these genes play an important role in the outcome of various diseases including cancer. In the present study, we evaluated the association of p16 and RB1 polymorphisms with cervical cancer susceptibility in Indian population. We screened 150 histologically confirmed cervical cancer cases along with equal number of healthy controls with normal cervical cytology. PCR-RFLP method was employed for genotyping of SNPs in p16 C540G (rs11515), C580T (rs3088440) in the 3'-UTR of exon 3 and RB1 A153104G (rs4151580) located in the intron 18 and confirmed by direct sequencing. Both patients and controls were screened for HPV infection. In this case-control study 84.67% (127/150) of cases were found to be positive for HPV DNA sequence. Women carrying p16 C540G carrier genotypes 540 (CG/GG) may have protective effect for the development of cervical cancer (P = 0.0001, OR = 0.31, 95% CI = 0.17-0.56). And SNP at C580T of p16 gene was found to be negatively associated with the risk of cervical cancer (P = 0.0004, OR = 0.04, 95% CI = 0.002-0.63). p16 (540C/580T) has emerged as a major risk haplotype (P = 0.033, OR = 1.47, 95% CI = 1.05-2.07) whereas p16 (540G/580T) as a chief protective haplotype (P = 0.014, OR = 0.39, 95% CI = 0.18-0.83) for the development of cervical cancer among Indian women. Contrary to this, SNP at A153104G of RB1 gene showed statistically significant association (P = 0.035, OR = 1.69, 95% CI = 1.06-2.68) with increased susceptibility for the development of cervical cancer. Our results suggest that single nucleotide polymorphisms in p16, RB1 genes may affect the susceptibility to cervical cancer collectively.

Item Type:Article
Source:Copyright of this article belongs to Springer.
Keywords:P16; RB1; CCND1; Cell Cycle; Cervical Cancer; Human Papilloma Virus; Single Nucleotide Polymorphism
ID Code:68407
Deposited On:07 Nov 2011 04:25
Last Modified:07 Nov 2011 04:25

Repository Staff Only: item control page