Encyclopedia of AIDS

Living Edition
| Editors: Thomas J. Hope, Douglas Richman, Mario Stevenson

The Antibody Response to HIV-2

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9610-6_50-1

Definition

Neutralizing antibodies (nAbs) inhibit or neutralize the infectiveness of a virus or bacteria. Broadly neutralizing antibodies (bNAbs) are neutralizing antibodies, which are able to neutralize multiple strains of HIV. Antibody-dependent complement-mediated inactivation (ADCMI) is a cell mediated mechanism whereby an effector cell actively lyses a target cell, which has been bound by a specific antibody. It is one of the mechanisms through which antibodies control HIV infection. Compared to HIV-1-infected patients, more HIV-2-infected subjects develop bNAbs and have a greater magnitude of the intratype antiviral activity of ADCMI.

Introduction

Many HIV-2-infected patients are able to control the progression of the infection more effectively than most HIV-1-infected subjects. In many HIV-2-infected patients, the viral load remains below limits of detection and CD4 T-cell counts remain normal; therefore, the disease progression may take decades (Marlink et al. 1994). Although...

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Authors and Affiliations

  1. 1.Radcliffe Department of MedicineUniversity of OxfordOxfordUK