High Frequency of HIV Precursor-target-specific B Cells in Sub-Saharan Populations

Overview

Journal Cell Rep

Publisher Cell Press

Specialties Biology
Cell Biology
Molecular Biology

Date 2023 Nov 29

PMID 38019653

Authors

Flavio Matassoli

Alberto Cagigi

Chen-Hsiang Shen

Amy R Henry

Timothy S Johnston

Chaim A Schramm

Christopher A Cottrell

Oleksandr Kalyuzhniy

Abby Spangler

Leigh Eller

Merlin Robb

Michael Eller

Prossy Naluyima

Peter D Kwong

Daniel C Douek

William R Schief

Sarah F Andrews

Adrian B McDermott

Affiliations

Soon will be listed here.

Abstract

HIV gp120 engineered outer domain germline-targeting version 8 (eOD-GT8) was designed specifically to engage naive B cell precursors of VRC01-class antibodies. However, the frequency and affinity of naive B cell precursors able to recognize eOD-GT8 have been evaluated only in U.S. populations. HIV infection is disproportionally concentrated in sub-Saharan Africa, so we seek to characterize naive B cells able to recognize eOD-GT8 in sub-Saharan cohorts. We demonstrate that people from sub-Saharan Africa have a higher or equivalent frequency of naive B cells able to engage eOD-GT8 compared with people from the U.S. Genetically, the higher frequency of eOD-GT8-positive cells is accompanied by a higher level of naive B cells with gene signatures characteristic of the VRC01 class, as well as other CD4bs-directed antibodies. Our study demonstrates that vaccination with eOD-GT8 in sub-Saharan Africa could be successful at expanding and establishing a pool of CD4bs-directed memory B cells from naive precursors.

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