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Exploiting polypharmacology for drug target deconvolution.

Taranjit Singh Gujral1, Leonid Peshkin, Marc W Kirschner

  • 1Department of Systems Biology, Harvard Medical School, Boston, MA 02115.

Proceedings of the National Academy of Sciences of the United States of America
|April 8, 2014
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Summary
This summary is machine-generated.

This study introduces a new method for drug target deconvolution, identifying specific kinases regulating cell migration. This approach aids in designing more effective and safer drug combinations.

Keywords:
cancer cell migrationperturbation biologypredictive modelingregularized regressionsystems pharmacology

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Area of Science:

  • Pharmacology
  • Molecular Biology
  • Bioinformatics

Background:

  • Polypharmacology, the action of drugs on multiple targets, offers potential for new drug development.
  • Current methods for drug target deconvolution are insufficient to leverage known polypharmacology.
  • Identifying specific kinase targets is crucial for understanding and modulating cell migration.

Purpose of the Study:

  • To develop and validate an ensemble approach for drug target deconvolution.
  • To identify specific kinases involved in epithelial and mesenchymal cell migration.
  • To discover novel kinase targets for therapeutic intervention.

Main Methods:

  • Utilized an ensemble approach combining elastic net regularization, mRNA expression profiling, and kinase inhibitor data.
  • Profiled 32 kinase inhibitors across six cell lines to identify cell type-specific regulators of migration.
  • Applied bioinformatics techniques for target deconvolution and data analysis.

Main Results:

  • Identified cell type-specific kinases that regulate epithelial and mesenchymal cell migration.
  • Discovered novel roles for Mst and Taok family of MAPK kinases in mesenchymal cell migration.
  • Demonstrated the efficacy of the ensemble approach in identifying informative kinases.

Conclusions:

  • The ensemble approach effectively deconvolutes drug targets and identifies key kinases in cell migration.
  • Novel kinase targets, including Mst and Taok kinases, warrant further investigation for therapeutic potential.
  • This method facilitates the rational design of combination therapies with improved efficacy and reduced toxicity.