Persistent HPV16/18 infection in Indian women with the A-allele (rs6457617) of HLA-DQB1 and T-allele (rs16944) of IL-1β −511 is associated with development of cervical carcinoma

Abstract The aim of this study was to understand the association of human papillomavirus (HPV) type 16/18 infection and polymorphisms in the HLA-DQB1 (rs6457617) and IL-1β –511 (rs16944) loci with the development of uterine cervical cancer (CaCx). The distribution of HLA-DQB1 G > A and IL-1β −511 C/T polymorphisms was determined in HPV-negative cervical swabs from normal women (N = 111) and compared with cervical swabs of HPV-cleared normal women (once HPV infected followed by natural clearance of the infection, N = 86), HPV16/18-positive cervical intraepithelial neoplasia (CIN, N = 41) and CaCx biopsies (N = 107). The A-allele containing genotypes (i.e. G/A and A/A) of HLA-DQB1 was significantly associated with CaCx compared with HPV-negative [OR = 2.56(1.42–4.62), p = 0.001] or HPV-cleared [OR = 2.07(1.12–3.87), p = 0.01] normal women, whereas the T-allele containing genotypes (i.e. C/T and T/T) of IL-1β showed increased risk of CIN [OR = 3.68(0.97–16.35), p = 0.03; OR = 3.59(0.92–16.38), p = 0.03] and CaCx development [OR = 2.03(1.03–5.2), p = 0.02; OR = 2.25(0.96–5.31), p = 0.04] compared with HPV-negative or HPV-cleared normal women. Considering these two loci together, it was evident that the T- and A-alleles rendered significantly increased susceptibility for development of CIN and CaCx compared with HPV-negative and HPV-cleared normal women. Moreover, the T-allele of IL-1β showed increas...
Source: Cancer Immunology, Immunotherapy - Category: Cancer & Oncology Source Type: research