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Drug target identification using a trypanosome overexpression library.

Daniela Begolo1, Esteban Erben2, Christine Clayton1

  • 1Zentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Alliance, Heidelberg, Germany d.begolo@zmbh.uni-heidelberg.de cclayton@zmbh.uni-heidelberg.de.

Antimicrobial Agents and Chemotherapy
|July 23, 2014
PubMed
Summary

Identifying drug targets is key for drug development. We developed a method using a Trypanosoma brucei overexpression library to find molecular targets of antitrypanosomal compounds, successfully identifying targets for two drugs.

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Area of Science:

  • Drug discovery and development
  • Parasitology
  • Molecular biology

Background:

  • Identifying molecular targets is crucial for optimizing drug leads in drug development.
  • Understanding the mode of action of antitrypanosomal compounds is essential for treating African trypanosomiasis.

Purpose of the Study:

  • To describe a direct method for identifying molecular targets of antitrypanosomal compounds.
  • To demonstrate the utility of a Trypanosoma brucei overexpression library for target elucidation.

Main Methods:

  • Utilized a Trypanosoma brucei overexpression library for compound screening.
  • Treated the library with known antitrypanosomal compounds, difluoromethylornithine and DDD85646.
  • Identified the molecular targets of these compounds by analyzing library responses.

Main Results:

  • Successfully identified ornithine decarboxylase as the target of difluoromethylornithine.
  • Successfully identified N-myristoyltransferase as the target of DDD85646.
  • Validated the effectiveness of the overexpression library approach.

Conclusions:

  • The Trypanosoma brucei overexpression library provides a direct and effective method for identifying drug targets.
  • This approach can accelerate the study of novel antitrypanosomal drug candidates and their mechanisms of action.