ATrypanosoma Bruceiorfeome-Based Gain-of-Function Library Reveals Novel Genes Associated with Melarsoprol Resistance

M Carter,HS Kim,S Gomez,S Gritz,S Larson,D Schulz,GA Hovel-Miner

bioRxiv（2019）

The George Washington University | <institution>The Public Health Research Institute at the International Center for Public Health New Jersey Medical School – Rutgers | Harvey Mudd College

Cited 1|Views8

Abstract

Trypanosoma brucei is an early branching protozoan that causes Human and Animal African Trypanosomiasis. Forward genetics approaches are powerful tools for uncovering novel aspects of Trypanosomatid biology, pathogenesis, and therapeutic approaches against trypanosomiasis. Here we have generated a T. brucei ORFeome consisting of over 90% of the targeted genome and used it to make an inducible Gain-of-Function library for broadly applicable forward genetic screening. Using a critical drug of last resort, melarsoprol, we conducted a proof of principle genetic screen. Hits arising from this screen support the significance of trypanothione, a key player in redox metabolism, as a target of melarsoprol and implicate novel proteins of the flagellum and mitochondria in drug resistance. This study has produced two powerful new genetic tools for kinetoplastida research, which are expected to promote major advances in kinetoplastida biology and therapeutic development in the years to come.

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Key words

African Trypanosomiasis,Trypanosoma cruzi

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