An Improved and High Throughput Respiratory Syncytial Virus (RSV) Micro-neutralization Assay

作者： Lien Anh Ha Do1,2, Reuben Tse1, Jordan Nathanielsz1, Jeremy Anderson1, Darren Suryawijaya Ong1, Keith Chappell3, Kim Mulholland1,2,4, Paul V. Licciardi1,2 1Murdoch Children's Research Institute, 2Department of Paediatrics,University of Melbourne, 3School of Chemistry and Molecular Bioscience,University of Queensland, 4London School of Hygiene and Tropical Medicine

简介：

Overview

This study presents a high throughput, imaging-based micro-neutralization assay designed to measure the titer of neutralizing antibodies against respiratory syncytial virus (RSV). The assay has been validated across various sample types and demonstrates high reproducibility.

Key Study Components

Area of Science

• Immunology
• Virology
• Laboratory Techniques

Background

• Respiratory syncytial virus (RSV) is a significant cause of respiratory illness.
• Neutralizing antibodies are critical for protection against RSV.
• Current methods for measuring these antibodies lack high throughput capabilities.
• There is a need for cost-effective and reproducible assays in laboratories worldwide.

Purpose of Study

• To develop a reliable method for quantifying RSV neutralizing antibodies.
• To provide a protocol that can be easily implemented in various research settings.
• To assess the assay's adaptability for different RSV subgroups and sample types.

Methods Used

• Imaging-based micro-neutralization assay.
• Testing on RSV subgroup A with potential adaptation for subgroup B.
• Use of A549 cells for the assay.
• Inter-assay variation assessment with reference antiserum.

Main Results

• The assay demonstrated inter-assay variations of less than 10% for reference antiserum.
• It can be established in laboratories at a relatively low cost.
• High throughput capabilities were confirmed across different sample types.
• The method is reproducible and adaptable for various RSV strains.

Conclusions

• This imaging-based micro-neutralization assay is a valuable tool for measuring RSV neutralizing antibodies.
• It addresses the need for accurate and efficient antibody quantification methods.
• The assay's low cost and reproducibility make it accessible for global research efforts.

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