Tumor necrosis factor (TNF) alpha and interleukin (IL) 18 genes polymorphisms are correlated with susceptibility to HPV infection in patients with and without cervical intraepithelial lesion

Background: The Human Papillomavirus (HPV) predisposes 500 000 women to cervical cancer. Host genetic background may facilitate virus persistence in the uterine cervix. Polymorphisms in regulatory and coding regions of cytokine genes have been associated with susceptibility to some human diseases. A...

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Published in:	Annals of human biology Vol. 43; no. 3; pp. 261 - 268
Main Authors:	Tavares, Mayara C. Mansur, de Lima Júnior, Sérgio F., Coelho, Antonio V. C., Marques, Trícia Ruschelle N. M., de Araújo, Diêgo Henrique T., Heráclio, Sandra de A., Amorim, Melânia M. Ramos, de Souza, Paulo Roberto E., Crovella, Sergio
Format:	Journal Article
Language:	English
Published:	England Taylor & Francis 03-05-2016
Subjects:	Adolescent Adult Aged Cervical Intraepithelial Neoplasia - genetics Cervical Intraepithelial Neoplasia - virology Cytokine Female Genetic Predisposition to Disease Humans Interleukin-18 - genetics invasive cervical cancer Middle Aged Papillomaviridae - physiology Papillomavirus Infections - genetics Papillomavirus Infections - virology Polymorphism, Single Nucleotide - genetics single nucleotide polymorphism Tumor Necrosis Factor-alpha - genetics Uterine Cervical Neoplasms - genetics Uterine Cervical Neoplasms - virology Young Adult single nucleotide polymorphism invasive cervical cancer Cytokine
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Summary:	Background: The Human Papillomavirus (HPV) predisposes 500 000 women to cervical cancer. Host genetic background may facilitate virus persistence in the uterine cervix. Polymorphisms in regulatory and coding regions of cytokine genes have been associated with susceptibility to some human diseases. Aim: This study aims at investigating whether TNFA -308 G/A and IL18 -137 G/C and -607 C/A polymorphisms are associated with susceptibility to HPV infection/progression to high-grade squamous intraepithelial lesion (HSIL). Subjects and methods: One hundred and twenty-two HPV infected and 132 HPV negative women (the latter used as healthy controls) were analysed. TNFA -308 G/A and IL18 (-137G/C and -607 C/A) polymorphisms were analysed using specific sequence polymorphism PCR (SSP-PCR). Univariate statistical analysis and a logistic regression were performed. Results: The TNFA -308A allele was associated with susceptibility to HPV infection (p = 0.0008), while the IL18 -607A allele conferred protection against HPV infection (p = 0.0043). TNFA -308 G/A and IL18 (-137G/C and -607 C/A) polymorphisms were not associated with development of cervical lesions (p > 0.05). An association was also observed between smoking and susceptibility to the development of HSIL. Conclusion: The findings suggest an association between two TNFA SNPs and susceptibility to HPV infection in women from Northeast Brazil. The results need to be functionally validated and replicated in other populations with different ethnic backgrounds.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0301-4460 1464-5033
DOI:	10.3109/03014460.2014.1001436