Cervical Cancer Research Today is a free monthly online journal that collates and summarizes the latest research about Cervical Cancer, including details on symptoms, vaccine, screening, treatment, human papilloma virus (hpv), information.

TNF-alpha promoter polymorphisms and susceptibility to human papillomavirus 16-associated cervical cancer.

Deshpande A, Nolan JP, White PS, Valdez YE, Hunt WC, Peyton CL, Wheeler CM

Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA.

BACKGROUND: Polymorphisms in the TNF-alpha promoter region have recently been shown to be associated with susceptibility to cervical cancer. Some polymorphisms have been reported to influence transcription for this cytokine. Altered local levels in the cervix may influence an individual's immune response, thereby affecting persistence of human papillomavirus (HPV) 16 infection, a primary etiological factor for cervical cancer. METHODS AND RESULTS: The association of 11 TNF-alpha single-nucleotide polymorphisms (SNPs) with susceptibility to HPV16-associated cervical cancer was investigated. Sequencing of the TNF-alpha promoter region confirmed 10 SNPs, and 1 previously unreported SNP (161 bp upstream of the transcriptional start site) was discovered. Microsphere-array flow cytometry-based genotyping was performed on 787 samples from Hispanic and non-Hispanic white women (241 from randomly selected control subjects, 205 from HPV16-positive control subjects, and 341 from HPV16-positive subjects with cervical cancer). The genotype distribution of 3 SNPs (-572, -857, and -863) was significantly different between case subjects and control subjects. Analysis of haplotypes, which were computationally inferred from genotype data, also revealed statistically significant differences in haplotype distribution between case subjects and control subjects. CONCLUSIONS: We report new associations between several TNF-alpha SNPs and susceptibility to cervical cancer that support the involvement of the TNF- alpha promoter region in development of cervical cancer.

Published 17 February 2005 in J Infect Dis, 191(6): 969-76.
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