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Abstract Title:

Association of serum cytokines with oral HPV clearance.

Abstract Source:

Cytokine. 2016 Apr 8 ;83:85-91. Epub 2016 Apr 8. PMID: 27064455

Abstract Author(s):

Jennifer O Lam, Jay H Bream, Elizabeth A Sugar, Christian L Coles, Kathleen M Weber, Robert D Burk, Dorothy J Wiley, Ross D Cranston, Susheel Reddy, Joseph B Margolick, Howard D Strickler, Alicia Wentz, Lisa Jacobson, Yingshi Guo, Weihong Xiao, Maura L Gillison, Gypsyamber D'Souza

Article Affiliation:

Jennifer O Lam

Abstract:

BACKGROUND: Initial studies suggest higher serum levels of some pro-inflammatory cytokines may be associated with decreased cervical human papillomavirus (HPV) clearance. However, the relationship of cytokines with oral HPV clearance has not been explored.

METHODS: From 2010 to 2014, oral rinse and serum samples were collected semi-annually from 1601 adults. Oral rinse samples were tested for HPV DNA using PCR. Based on oral HPV results, 931 serum samples were selected for cytokine evaluation to include a roughly equal number of prevalent (n=307), incident (n=313), and no oral HPV infections (n=311). Electrochemiluminescence multiplex assays were used to determine the concentrations of IL-6, IL-8, TNF-α, IFN-γ, IL-1β, IL-2, IL-4, IL-10, IL-12 and IL-13. The relationship between serum cytokine concentrations (categorized into quartiles) and oral HPV clearance was evaluated with Wei-Lin-Weissfeld regression models, adjusting for HPV infection type (prevalent vs. incident), age, HIV status, and CD4 T cell count.

RESULTS: Higher TNF-α concentration was associated with decreased clearance in men (highest vs. lowest quartile, adjusted hazard ratio [aHR]=0.52, 95% CI=0.34-0.79) and women (aHR=0.76, 95% confidence interval [CI]=0.55-1.04), with stronger associations in men than women (p-interaction=0.049). Higher IL-2 concentration was associated with reduced clearance in men (aHR=0.69, 95% CI=0.50-0.95), but not women (p-interaction=0.058). Results were similar within CD4 T cell strata (CD4⩾500 or CD4<500 cells/μl) among HIV-infected participants. No other cytokines were associated with clearance.

CONCLUSION: High serum TNF-α is associated with reduced clearance of oral HPV infection.

Study Type : Human Study

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Sayer Ji
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