In vitro Infection of Primary Human Monocytes with HIV-1

Abstract

Monocyte infection by HIV-1 is an important component of chronic HIV pathogenesis. Following infection by HIV-1, monocytes are able to cross the blood brain barrier and set up a viral reservoir in the central nervous system. Additionally, in the setting of chronic HIV-1 infection, monocytes can become activated either directly through HIV-1 infection or indirectly via HIV-1-mediated systemic immune activation. Currently, there are few studies looking at HIV-1 infection of primary human monocytes in vitro. Furthermore, detection of successful HIV-1 infection of monocytes can be laborious requiring an ELISA for p24 or assessing levels of HIV-1 mRNA or DNA. This protocol utilizes an HIV-1 strain expressing GFP to allow for easy quantification of HIV-1 infection by fluorescence-assisted cell sorting (FACS). By determining HIV-1 infection by FACS one can take advantage of its multiparametric nature allowing for the use of less cells and the ability to assess the expression of other markers on HIV-1(+) and HIV-1(-) cells in the same experiment. Additionally, this protocol could be modified to study HIV-1 infection of other cells including CD4(+) T cells. FU - NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USA [1R21AI122808-01]; NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASESUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Institute of Allergy & Infectious Diseases (NIAID) [R21AI122808] Funding Source: NIH RePORTER FX - This work was supported by the NIH in the form of an R21 grant to YAA (1R21AI122808-01). We also thank Sarah Godbehere for her critical review of this manuscript. This method is adapted from Wang et al., 2018. NR - 11 PU - BIO-PROTOCOL PI - SUNNYVALE PA - PO BOX 2073, SUNNYVALE, CA 94087 USA