Lower Baseline Germinal Center Activity and Preserved Th1 Immunity are Associated with Hepatitis B Vaccine Response in Treated HIV Infection

Robert M. Paris, Lucimar G. Milagres, Eirini Moysi, Jason F. Okulicz, Brian K. Agan, Anu Ganesan, Constantinos Petrovas, Richard A. Koup

Abstract


Background: Why HIV-infected individuals have poor responses to standard dose and schedule hepatitis B virus immunization is not well understood.

Methods: We compared the serologic and cellular immune profiles of treated HIV-infected individuals with similar durations of infection and preserved CD4 counts (>350 cells/microliter) by hepatitis B vaccine (HBV) response before and after vaccination.

Results: Similar levels of immune activation and plasma cytokine profile were found between non-responders and responders. The baseline plasma levels of CXCL-13, a surrogate of germinal center reactivity, were significantly lower in HBV responders compared to HBV non-responders and were a predictor of both vaccine response and titer. Furthermore, response to HBV vaccination was associated with a significantly higher frequency of circulating IgGhigh memory B cells post vaccination and preserved Th1 antigen-specific T-cell responses.

Conclusions: Taken together, our data suggest that preserved Th1 responses are associated with hepatitis B vaccine response in treated HIV infection.


Keywords


Human immunodeficiency virus; AIDS; hepatitis B vaccine; T cell; antibodies

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Copyright (c) 2017 Constantinos Petrovas

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