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Updated: Jun 25, 2026

07:55
Generation of Escape Variants of Neutralizing Influenza Virus Monoclonal Antibodies
Published on: August 29, 2017
Neutralization of HIV by antibodies
Ilia Prado1, Timothy R Fouts, Antony S Dimitrov
1Profectus BioSciences, Inc., Baltimore, MD, USA.
Methods in Molecular Biology (Clifton, N.J.)
|March 3, 2009
Summary
Measuring antibody neutralization of HIV-1 in tissue cultures is crucial. A standardized peripheral blood mononuclear cell (PBMC) assay offers a more accurate assessment for developing effective antibody therapeutics.
Area of Science:
- Immunology
- Virology
- Biotechnology
Background:
- Antibody neutralization of HIV-1 varies widely and isn't solely predicted by binding affinity.
- Accurate assessment of neutralizing activity is vital for therapeutic antibody development and vaccine design.
- Standardized in vitro assays for antibody neutralization have been challenging to establish.
Purpose of the Study:
- To detail a standardized peripheral blood mononuclear cell (PBMC)-based assay for measuring in vitro HIV-1 neutralizing activity.
- To highlight the PBMC assay's potential for better approximating in vivo conditions compared to cell line/pseudovirus assays.
Main Methods:
- Description of a detailed peripheral blood mononuclear cell (PBMC)-based assay for evaluating antibody neutralization of HIV-1.
- Comparison with existing cell line/pseudovirus assays, noting the PBMC assay is more laborious but potentially more relevant.
Main Results:
- The study provides a detailed protocol for a PBMC-based neutralization assay.
- The PBMC assay is presented as a more physiologically relevant model for assessing antibody efficacy.
Conclusions:
- The PBMC-based assay is a valuable tool for evaluating antibody neutralization of HIV-1.
- While in vitro assays provide indications, in vivo studies and clinical trials remain essential for therapeutic development.
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