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Related Experiment Videos

Complex phenotypic assays in high-throughput screening.

Paul A Clemons1

  • 1Initiative for Chemical Genetics, ICCB-Broad Institute, Harvard University, 320 Charles Street, Room 184, Cambridge, Massachusetts 02141, USA. pclemons@hms.harvard.edu

Current Opinion in Chemical Biology
|June 9, 2004
PubMed
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High-throughput screening (HTS) traditionally used purified proteins. Now, complex cell- and organism-based phenotypic assays are increasingly used as a primary screening platform for small molecule annotation.

Area of Science:

  • Drug discovery and development
  • Chemical biology
  • Assay development

Background:

  • High-throughput screening (HTS) is a key drug discovery method.
  • Traditionally, HTS uses purified proteins and arrayed small molecules.
  • Phenotypic assays (cell- or organism-based) were secondary, used for target validation or lead characterization.

Purpose of the Study:

  • To highlight the shift in HTS methodology.
  • To emphasize the growing role of phenotypic assays in early drug discovery.

Main Methods:

  • Review of current trends in drug screening methodologies.
  • Analysis of the integration of phenotypic assays into primary screening.

Main Results:

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  • Phenotypic assays are increasingly adopted as primary screening platforms.
  • This shift allows for direct assessment of compound effects in a biological context.

    • Conclusions:

    • Cell- and organism-based phenotypic assays are becoming central to small molecule annotation.
    • This evolution in HTS broadens the scope of early-stage drug discovery.