Title
A sex-stratified analysis of monocyte phenotypes associated with HIV infection in Uganda
Date Issued
01 November 2021
Access level
open access
Resource Type
journal article
Author(s)
Huaman M.A.
Feria M.G.
Kityo C.
Nalukwago S.
Nazzinda R.
Zidar D.A.
Zanni M.V.
Siedner M.J.
Grinspoon S.K.
Longenecker C.T.
Publisher(s)
Multidisciplinary Digital Publishing Institute (MDPI)
Abstract
Women with HIV may experience higher rates of non-AIDS comorbidities compared to men with HIV, but the underlying mechanisms are not well understood. We investigated sex-related differences in the effects of HIV on monocyte phenotypes within the Ugandan Study of HIV effects on the Myocardium and Atherosclerosis (mUTIMA). Of 133 participants who provided blood for flow cytometry assays, 86 (65%) were women and 91 (68%) were persons living with HIV (PLWH) on antiretroviral therapy. The median age was 57 (interquartile range, 52–63) years. PLWH exhibited a lower proportion of circulating CD14+CD16− classical monocytes (66.3% vs. 75.1%; p < 0.001), and higher proportion of CD14+CD16+ inflammatory monocytes (17% vs. 11.7%; p = 0.005) compared to HIV-uninfected participants. PLWH had an increased expression of the chemokine receptor CX3CR1 in total monocytes (CX3CR1+ monocytes, 24.5% vs. 4.7%; p < 0.001) and monocyte subsets. These findings were generally similar when analyzed by sex, with no significant interactions between sex and HIV status in adjusted models. Our data show that the inflammatory monocyte subset is expanded and monocyte CX3CR1 chemokine receptor expression is enhanced among PLWH, regardless of sex. Whether these parameters differentially affect risk for non-AIDS comorbidities and clinical outcomes in women with HIV requires additional investigation.
Volume
13
Issue
11
Language
English
OCDE Knowledge area
Obstetricia, Ginecología Virología Enfermedades infecciosas
Publication version
Version of Record
Scopus EID
2-s2.0-85117890213
PubMed ID
Source
Viruses
ISSN of the container
1999-4915
Sponsor(s)
This work was funded in part by the National Center for Advancing Translational Sciences (KL2 TR001426 to M.A.H.), and the National Heart, Lung, and Blood Institute (K23 HL123341 to C.T.L.) at the National Institutes of Health. The contents are solely the responsibility of the authors and do not necessarily represent the official views of the National Institutes of Health or the institutions with which the authors are affiliated.
Sources of information: Directorio de Producción Científica Scopus