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Upregulation of PTPRC and Interferon Response Pathways in HIV-1 Seroconverters Prior to Infection
Yunqi Li1, Francois Lefebvre2, Edith Nakku-Joloba3
1Institute for Public Health Genetics, University of Washington, Seattle, Washington, USA.
Abstract:
Human immunodeficiency virus 1 (HIV-1) exposed seronegative (HESN) individuals may have unique characteristics that alter susceptibility to HIV-1 infection. However, identifying truly exposed HESN is challenging. We utilized stored data and biospecimens from HIV-1 serodifferent couple cohorts, in which couples' HIV-1 exposures were quantified based on unprotected sex frequency and viral load of the partner with HIV-1. We compared peripheral blood gene expression between 15 HESN and 18 seroconverters prior to infection. We found PTPRC (encoding CD45 antigen) and interferon-response pathways had significantly higher expression among individuals who went on to become seropositive and thus may be a signature for increased acquisition risk.
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