alexa TP53 Gene Polymorphism in Epithelial Ovarian Carcinoma Patients from North Indian Population and its Pro/Pro Variant is Potentially Contributing to Cancer Susceptibility
ISSN: 2157-7412

Journal of Genetic Syndromes & Gene Therapy
Open Access

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Research Article

TP53 Gene Polymorphism in Epithelial Ovarian Carcinoma Patients from North Indian Population and its Pro/Pro Variant is Potentially Contributing to Cancer Susceptibility

Dholariya S1, Zubari M1, Ray PC1, Gandhi G2, Khurana N3, Yadav P1, Javid J1, Ahamad I1, Saxena A1 and Rashid Mir1*

1Cancer Genetic Lab, Department of Biochemistry, Maulana Azad Medical College and Associated hospitals, New Delhi, India

2Department of Obstetrics and Gynaecology, Lok Nayak Hospital, New Delhi, India

3Department of Pathology, Maulana Azad Medical College and Associated hospitals, New Delhi, India

*Corresponding Author:
Rashid Mir
Cancer Genetics Lab
Department of Biochemistry
Maulana Azad Medical College and Associated Hospitals
New Delhi, India
Tel: +91-9968937401
E-mail: [email protected]

Received date: May 02, 2013; Accepted date:June 07, 2013; Published date: June 10, 2013

Citation: Dholariya S, Zubari M, Ray PC, Gandhi G, Khurana N, et al. (2013) TP53 Gene Polymorphism in Epithelial Ovarian Carcinoma Patients from North Indian Population and its Pro/Pro Variant is Potentially Contributing to Cancer Susceptibility. J Genet Syndr Gene Ther 4:145. doi:10.4172/2157-7412.1000145

Copyright: © 2013 Dholariya S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background: Ovarian cancer is the leading cause of death from gynecological malignancies. The early
stages of this disease are asymptomatic and more than 75% of the cases are diagnosed with regional or distant metastases. P53 is a tumor suppressor gene and is involved in the etiology of ovarian cancer. Studies investigating the associations between the p53 codon 72 polymorphism and ovarian cancer risk showed conflicting results. A  polymorphism at codon 72 of the human tumour-suppressor gene, p53, results in translation to either arginine or proline. To investigate the association of p53 codon 72 polymorphism with susceptibility to epithelial ovarian cancer in North Indian women and to correlate them with clinicopathological characteristics of disease.

Methods: The study was conducted on 100 epithelial ovarian cancer patients and 100 healthy controls.
Genotyping of p53 codon 72 polymorphism was examined by PCR with allele-specific primers.
Results: The proportions of individuals homozygous for the arginine allele, homozygous for the proline allele,
and heterozygous for the two alleles were 33%, 17%, and 50% among women screened for ovarian cancer; 62%, 6%, and 32% among the control group. A significant correlation was found between the arg/pro (p<0.0004) and pro/pro (p<0.0006) genotypes with respect to the arg/arg genotype. Pro/pro genotype emerged as the risk factor with an OR of 5.3 and a RR of 2.5.


Conclusion: Our study suggests that Pro/Pro genotype of 72 codon polymorphism could be an independent
susceptibility marker in northern Indian women with ovarian carcinomas.

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