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Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...

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A high-throughput cell-based screening method for Zika virus protease inhibitor discovery.

Paulina Duhita Anindita1, Yuka Otsuka2, Simon Lattmann3

  • 1Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore; NTU Institute of Structural Biology, Nanyang Technological University, Singapore, Singapore.

SLAS Discovery : Advancing Life Sciences R & D
|May 25, 2024
PubMed
Summary

Researchers developed a new high-throughput screening assay to find drugs targeting the Zika virus (ZIKV) protease. This assay is crucial for discovering potential treatments against ZIKV, a significant global health concern.

Keywords:
Cell-based assayHTSProtease inhibitorsZika virus

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Area of Science:

  • Virology
  • Drug Discovery
  • Biochemistry

Background:

  • Zika virus (ZIKV) presents a persistent global health challenge with potential for widespread outbreaks.
  • ZIKV infections can lead to severe neurological issues and congenital abnormalities.
  • No vaccines or antiviral treatments are currently approved for ZIKV.

Purpose of the Study:

  • To establish a cell-based assay for high-throughput screening (HTS) of potential Zika virus protease inhibitors.
  • To identify novel drug candidates targeting the essential ZIKV NS2B-NS3 protease.

Main Methods:

  • Developed a novel cell-based assay utilizing a cyclized firefly luciferase reporter system.
  • The assay measures the cleavage activity of the ZIKV NS2B-NS3 protease in living cells.
  • Validated the assay's performance using known pharmacologic controls and screened a compound library (LOPAC).

Main Results:

  • Successfully established and validated a robust cell-based ZIKV protease inhibition assay suitable for HTS.
  • Demonstrated the assay's effectiveness in identifying potential inhibitors from a diverse compound library.
  • Confirmed the feasibility of using this assay for large-scale screening efforts.

Conclusions:

  • The developed assay is a valuable tool for identifying novel Zika virus protease inhibitors.
  • This platform facilitates the discovery of much-needed therapeutics for ZIKV infection.
  • The study provides a foundation for advancing ZIKV drug development pipelines.