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Hit diffusion: limitations to drug discovery and structure-based design.

John H Van Drie1

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Summary
This summary is machine-generated.

Drug screening funnels can miss promising molecules due to assay discordance, a phenomenon called hit diffusion. Understanding this hit diffusion is key for better drug discovery and structure-based design.

Keywords:
Biological assaysDiscordanceScreeningScreening funnelVirtual screening

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Area of Science:

  • Drug discovery and development
  • Medicinal chemistry
  • Assay development

Background:

  • Modern drug discovery utilizes a multi-step screening funnel approach.
  • This process involves a series of assays to identify potential drug candidates.
  • Assay discordance, where different assays yield conflicting results, is a common challenge.

Purpose of the Study:

  • To highlight the issue of 'hit diffusion' in drug discovery screening funnels.
  • To explain the implications of assay discordance for identifying optimal drug molecules.
  • To outline strategies for mitigating the hit diffusion problem.

Main Methods:

  • Analysis of assay relationships within the drug screening funnel.
  • Exploration of the biophysical basis of assay discordance.
  • Review of existing and proposed strategies to address hit diffusion.

Main Results:

  • Assay discordance can lead to the overlooking of potentially valuable drug candidates.
  • Hit diffusion describes the phenomenon where active molecules are lost across sequential assays.
  • Understanding the biophysical underpinnings of discordance is crucial.

Conclusions:

  • Hit diffusion poses a significant risk in drug discovery, potentially causing the loss of optimal molecules.
  • Addressing assay discordance and hit diffusion is essential for improving the efficiency of drug discovery.
  • Improved understanding and strategies can enhance structure-based design and overall drug development success.