Patterns of HIV/SIV prevention and control by passive antibody immunization

Neutralizing antibody (NAb) responses are promising immune effectors for control of human immunodeficiency virus (HIV) infection. Protective activity and mechanisms of immunodeficiency virus-specific NAbs have been increasingly scrutinized in animals infected with simian immunodeficiency virus (SIV)...

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Main Authors: Hiroyuki Yamamoto, Tetsuro Matano
Format: Article
Language:English
Published: Frontiers Media S.A. 2016-11-01
Series:Frontiers in Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fmicb.2016.01739/full
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author Hiroyuki Yamamoto
Tetsuro Matano
Tetsuro Matano
author_facet Hiroyuki Yamamoto
Tetsuro Matano
Tetsuro Matano
author_sort Hiroyuki Yamamoto
collection DOAJ
description Neutralizing antibody (NAb) responses are promising immune effectors for control of human immunodeficiency virus (HIV) infection. Protective activity and mechanisms of immunodeficiency virus-specific NAbs have been increasingly scrutinized in animals infected with simian immunodeficiency virus (SIV), chimeric simian/human immunodeficiency virus (SHIV) and related viruses. Studies on such models have unraveled a previously underscored protective potential against in vivo immunodeficiency virus replication. Pre-challenge NAb titers feasibly provide sterile protection from SIV/SHIV infection by purging the earliest onset of viral replication and likely modulate innate immune cell responses. Sufficient sub-sterile NAb titers after established infection also confer dose-dependent reduction of viremia, and in certain earlier time frames augment adaptive immune cell responses and even provide rebound-free viral control. Here, we provide an overview of the obtained patterns of SIV/SHIV protection and viral control by various types of NAb passive immunizations and discuss how these notions may be extrapolated to NAb-based clinical control of HIV infection.
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spelling doaj.art-d4f71c9a08ed4d26b0cd8bba96fb03052022-12-21T17:58:29ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2016-11-01710.3389/fmicb.2016.01739231109Patterns of HIV/SIV prevention and control by passive antibody immunizationHiroyuki Yamamoto0Tetsuro Matano1Tetsuro Matano2AIDS Research Center, National Institute of Infectious DiseasesAIDS Research Center, National Institute of Infectious DiseasesThe Institute of Medical Science, The University of TokyoNeutralizing antibody (NAb) responses are promising immune effectors for control of human immunodeficiency virus (HIV) infection. Protective activity and mechanisms of immunodeficiency virus-specific NAbs have been increasingly scrutinized in animals infected with simian immunodeficiency virus (SIV), chimeric simian/human immunodeficiency virus (SHIV) and related viruses. Studies on such models have unraveled a previously underscored protective potential against in vivo immunodeficiency virus replication. Pre-challenge NAb titers feasibly provide sterile protection from SIV/SHIV infection by purging the earliest onset of viral replication and likely modulate innate immune cell responses. Sufficient sub-sterile NAb titers after established infection also confer dose-dependent reduction of viremia, and in certain earlier time frames augment adaptive immune cell responses and even provide rebound-free viral control. Here, we provide an overview of the obtained patterns of SIV/SHIV protection and viral control by various types of NAb passive immunizations and discuss how these notions may be extrapolated to NAb-based clinical control of HIV infection.http://journal.frontiersin.org/Journal/10.3389/fmicb.2016.01739/fullHIVCD8+ T cellsneutralizing antibodiesSIVpassive immunization
spellingShingle Hiroyuki Yamamoto
Tetsuro Matano
Tetsuro Matano
Patterns of HIV/SIV prevention and control by passive antibody immunization
Frontiers in Microbiology
HIV
CD8+ T cells
neutralizing antibodies
SIV
passive immunization
title Patterns of HIV/SIV prevention and control by passive antibody immunization
title_full Patterns of HIV/SIV prevention and control by passive antibody immunization
title_fullStr Patterns of HIV/SIV prevention and control by passive antibody immunization
title_full_unstemmed Patterns of HIV/SIV prevention and control by passive antibody immunization
title_short Patterns of HIV/SIV prevention and control by passive antibody immunization
title_sort patterns of hiv siv prevention and control by passive antibody immunization
topic HIV
CD8+ T cells
neutralizing antibodies
SIV
passive immunization
url http://journal.frontiersin.org/Journal/10.3389/fmicb.2016.01739/full
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