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Related Experiment Videos

Aptamers as reagents for high-throughput screening.

L S Green1, C Bell, N Janjic

  • 1NeXstar Pharmaceuticals/Gilead Sciences, Boulder, CO, USA.

Biotechniques
|May 18, 2001
PubMed
Summary
This summary is machine-generated.

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Aptamers, or nucleic acid ligands, accelerate drug discovery by enabling rapid high-throughput screening (HTS) of potential drug candidates against protein targets.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Drug Discovery

Background:

  • Drug discovery relies on identifying novel drug candidates from large chemical libraries.
  • Developing efficient high-throughput screening (HTS) assays is crucial but often a bottleneck in pharmaceutical research.

Purpose of the Study:

  • To demonstrate the utility of aptamers as versatile reagents in competition binding HTS assays.
  • To identify and optimize small-molecule ligands targeting protein receptors.

Main Methods:

  • Utilized labeled aptamers for screening potential small-molecule ligands against platelet-derived growth factor B-chain and wheat germ agglutinin.
  • Assessed binding affinities of small molecules and aptamers and correlated them with functional assay potencies.

Related Experiment Videos

Main Results:

  • Aptamers enabled rapid identification and optimization of small-molecule ligands.
  • Strong correlation observed between binding affinities and inhibitory potencies for all tested ligands.
  • Demonstrated aptamer utility in HTS assays for protein targets, including orphan receptors.

Conclusions:

  • Aptamers offer significant advantages for HTS, including speed, high affinity, and compatibility with various detection methods.
  • Aptamers can streamline drug discovery by facilitating target validation and ligand screening.
  • The use of aptamers in HTS assays can accelerate the identification of potent drug candidates.