Peer-Reviewed Publication
Nat Commun2022;13(1):662.February 3, 2022Journal Article

Phagocytosis by an HIV antibody is associated with reduced viremia irrespective of enhanced complement lysis.

David A Spencer1,2, Benjamin S Goldberg3, Shilpi Pandey1, Tracy Ordonez1, Jérémy Dufloo4,5, Philip Barnette1, William F Sutton1, Heidi Henderson1, Rebecca Agnor6, Lina Gao6, Timothée Bruel4,7, Olivier Schwartz4,7, Nancy L Haigwood1,8, Margaret E Ackerman3, Ann J Hessell9
1Division of Pathobiology & Immunology, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA.
2Absci Corp, 1810 SE Mill Plain Blvd., Vancouver, WA, 98683, USA.
3Thayer School of Engineering, Dartmouth College, Hanover, NH, USA.
4Virus & Immunity Unit, Department of Virology, Institut Pasteur, Paris, France.
5Institute for Integrative Systems Biology, University of Valencia-CSIC, Calle Catedràtic Agustín Escardino Benlloch 9, 46980, Paterna, Valencia, Spain.
6Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA.
7Vaccine Research Institute, Creteil, France.
8Department of Molecular Microbiology & Immunology, School of Medicine, Oregon Health & Science University, Portland, OR, USA.
9Division of Pathobiology & Immunology, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA. hessell@ohsu.edu.

Abstract

Increasingly, antibodies are being used to treat and prevent viral infections. In the context of HIV, efficacy is primarily attributed to dose-dependent neutralization potency and to a lesser extent Fc-mediated effector functions. It remains unclear whether augmenting effector functions of broadly neutralizing antibodies (bNAbs) may improve their clinical potential. Here, we use bNAb 10E8v4 target…

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