Inhibition of poly(ADP-ribose) Polymerase Interferes with Trypanosoma cruzi Infection and Proliferation of the Parasite

Salomé C. Vilchez Larrea, Teemu Haikarainen, Mohit Narwal, Mariana Schlesinger, Harikanth Venkannagari, Mirtha M. Flawiá, Silvia H Fernández Villamil, Lari Lehtiö

Research output: Contribution to journalArticle

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Abstract

Poly(ADP-ribosylation) is a post-translational covalent modification of proteins catalyzed by a family of enzymes termed poly(ADP-ribose) polymerases (PARPs). In the human genome, 17 different genes have been identified that encode members of the PARP superfamily. Poly (ADP-ribose) metabolism plays a role in a wide range of biological processes. In Trypanosoma cruzi, PARP enzyme appears to play a role in DNA repair mechanisms and may also be involved in controlling the different phases of cell growth. Here we describe the identification of potent inhibitors for T. cruzi PARP with a fluorescence-based activity assay. The inhibitors were also tested on T. cruzi epimastigotes, showing that they reduced ADP-ribose polymer formation in vivo. Notably, the identified inhibitors are able to reduce the growth rate of T. cruzi epimastigotes. The best inhibitor, Olaparib, is effective at nanomolar concentrations, making it an efficient chemical tool for chacterization of ADP-ribose metabolism in T. cruzi. PARP inhibition also decreases drastically the amount of amastigotes but interestingly has no effect on the amount of trypomastigotes in the cell culture. Knocking down human PARP-1 decreases both the amount of amastigotes and trypomastigotes in cell culture, indicating that the effect would be mainly due to inhibition of human PARP-1. The result suggests that the inhibition of PARP could be a potential way to interfere with T. cruzi infection.

Original languageEnglish (US)
Article numbere46063
JournalPLoS One
Volume7
Issue number9
DOIs
StatePublished - Sep 25 2012
Externally publishedYes

Fingerprint

NAD ADP-ribosyltransferase
Parasitic Diseases
Poly(ADP-ribose) Polymerases
Trypanosoma cruzi
parasites
infection
Adenosine Diphosphate Ribose
ribose
epimastigotes
trypomastigotes
Cell culture
Metabolism
amastigotes
Cell Culture Techniques
Genes
Poly Adenosine Diphosphate Ribose
Enzyme inhibition
Biological Phenomena
cell culture
Cell growth

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Vilchez Larrea, S. C., Haikarainen, T., Narwal, M., Schlesinger, M., Venkannagari, H., Flawiá, M. M., ... Lehtiö, L. (2012). Inhibition of poly(ADP-ribose) Polymerase Interferes with Trypanosoma cruzi Infection and Proliferation of the Parasite. PLoS One, 7(9), [e46063]. https://doi.org/10.1371/journal.pone.0046063

Inhibition of poly(ADP-ribose) Polymerase Interferes with Trypanosoma cruzi Infection and Proliferation of the Parasite. / Vilchez Larrea, Salomé C.; Haikarainen, Teemu; Narwal, Mohit; Schlesinger, Mariana; Venkannagari, Harikanth; Flawiá, Mirtha M.; Villamil, Silvia H Fernández; Lehtiö, Lari.

In: PLoS One, Vol. 7, No. 9, e46063, 25.09.2012.

Research output: Contribution to journalArticle

Vilchez Larrea, SC, Haikarainen, T, Narwal, M, Schlesinger, M, Venkannagari, H, Flawiá, MM, Villamil, SHF & Lehtiö, L 2012, 'Inhibition of poly(ADP-ribose) Polymerase Interferes with Trypanosoma cruzi Infection and Proliferation of the Parasite', PLoS One, vol. 7, no. 9, e46063. https://doi.org/10.1371/journal.pone.0046063
Vilchez Larrea, Salomé C. ; Haikarainen, Teemu ; Narwal, Mohit ; Schlesinger, Mariana ; Venkannagari, Harikanth ; Flawiá, Mirtha M. ; Villamil, Silvia H Fernández ; Lehtiö, Lari. / Inhibition of poly(ADP-ribose) Polymerase Interferes with Trypanosoma cruzi Infection and Proliferation of the Parasite. In: PLoS One. 2012 ; Vol. 7, No. 9.
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