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Updated: Jul 26, 2025

Detection of SARS-CoV-2 Neutralizing Antibodies using High-Throughput Fluorescent Imaging of Pseudovirus Infection
Published on: June 5, 2021
SARS-CoV-2 neutralising antibody therapies: Recent advances and future challenges
Mingtao Liu1, Zhiman Liang1, Zhangkai J Cheng1
1Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Abstract:
The COVID-19 pandemic represents an unparalleled global public health crisis. Despite concerted research endeavours, the repertoire of effective treatment options remains limited. However, neutralising-antibody-based therapies hold promise across an array of practices, encompassing the prophylaxis and management of acute infectious diseases. Presently, numerous investigations into COVID-19-neutralising antibodies are underway around the world, with some studies reaching clinical application stages. The advent of COVID-19-neutralising antibodies signifies the dawn of an innovative and promising strategy for treatment against SARS-CoV-2 variants. Comprehensively, our objective is to amalgamate contemporary understanding concerning antibodies targeting various regions, including receptor-binding domain (RBD), non-RBD, host cell targets, and cross-neutralising antibodies. Furthermore, we critically examine the prevailing scientific literature supporting neutralising antibody-based interventions, and also delve into the functional evaluation of antibodies, with a particular focus on in vitro (vivo) assays. Lastly, we identify and consider several pertinent challenges inherent to the realm of COVID-19-neutralising antibody-based treatments, offering insights into potential future directions for research and development.
Insights
Neutralizing antibodies offer a promising new treatment strategy for COVID-19, targeting SARS-CoV-2 variants. Research explores antibodies against various viral regions and evaluates their effectiveness through in vitro assays.
Area of Science:
- Immunology
- Virology
- Infectious Diseases
Background:
- The COVID-19 pandemic presents a significant global health challenge with limited effective treatments.
- Neutralizing-antibody-based therapies are emerging as a promising approach for preventing and managing infectious diseases like COVID-19.
Purpose of the Study:
- To synthesize current knowledge on COVID-19 neutralizing antibodies targeting diverse regions (RBD, non-RBD, host cells, cross-neutralization).
- To critically review scientific literature on antibody-based interventions for COVID-19.
- To examine antibody functional evaluation, focusing on in vitro assays and identify future research directions.
Main Methods:
- Literature review of scientific publications on COVID-19 neutralizing antibodies.
- Analysis of studies investigating antibodies targeting various SARS-CoV-2 regions.
- Evaluation of in vitro assays used for functional assessment of antibody efficacy.
Main Results:
- Numerous COVID-19 neutralizing antibody investigations are ongoing globally, with some progressing to clinical stages.
- Antibodies targeting different regions of SARS-CoV-2, including the receptor-binding domain (RBD), show therapeutic potential.
- In vitro assays are crucial for evaluating the functional capacity of these neutralizing antibodies.
Conclusions:
- COVID-19 neutralizing antibodies represent an innovative treatment strategy against SARS-CoV-2 and its variants.
- Further research is needed to address challenges and optimize the development of antibody-based therapies.
- Understanding antibody targets and functional evaluations is key to advancing treatment options.
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