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Plate-Based High-Throughput Fluorescence Assay for Assessing Enveloped Virus Integrity.

Shannan-Leigh Macleod1, Elana H Super1, Lauren J Batt1

  • 1Department of Materials and Henry Royce Institute, University of Manchester, Manchester M13 9PL, UK.

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Summary
This summary is machine-generated.

A new fluorescence assay (FAIRY) rapidly distinguishes infectious from noninfectious enveloped viruses. This high-throughput method is crucial for studying viruses and developing new antiviral therapies and vaccines.

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Area of Science:

  • Virology
  • Biotechnology
  • Molecular Biology

Background:

  • Viruses pose significant global health and economic challenges.
  • Understanding viral infectivity is critical for developing vaccines and gene therapies.
  • Existing methods for assessing viral integrity are often slow or unavailable.

Purpose of the Study:

  • To develop a rapid, high-throughput assay for determining the infectivity of enveloped viruses.
  • To differentiate between intact (infectious) and nonintact (noninfectious) viruses.

Main Methods:

  • Development of a cell-free, plate-based assay named FAIRY (Fluorescence Assay for vIRal IntegritY).
  • Utilized a thiazole orange-terminated polymer to detect viral integrity.
  • Tested the assay's performance on various enveloped viruses subjected to heat or virucidal treatments.

Main Results:

  • The FAIRY assay demonstrated a 99% increase in fluorescence between treated and nontreated enveloped viruses.
  • Successfully differentiated intact from nonintact viruses, indicating infectious from noninfectious states.
  • Enabled rapid determination of infectivity for a range of enveloped viruses.

Conclusions:

  • The FAIRY assay is a robust and high-throughput tool for assessing enveloped virus infectivity.
  • This assay has significant potential for accelerating research on viruses and antiviral interventions.
  • FAIRY can aid in the quality control of viral-based therapeutics like vaccines and gene therapies.