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Quantitative proteomics of Trypanosoma cruzi during metacyclogenesis
Author(s) -
de Godoy Lyris Martins Franco,
Marchini Fabricio Klerynton,
Pavoni Daniela Parada,
Rampazzo Rita de Cássia Pontello,
Probst Christian Macagnan,
Goldenberg Samuel,
Krieger Marco Aurelio
Publication year - 2012
Publication title -
proteomics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.26
H-Index - 167
eISSN - 1615-9861
pISSN - 1615-9853
DOI - 10.1002/pmic.201200078
Subject(s) - trypanosoma cruzi , biology , infectivity , amastigote , proteomics , chagas disease , virulence , quantitative proteomics , gene , gene expression , dna microarray , microbiology and biotechnology , parasite hosting , computational biology , virology , genetics , leishmania , virus , world wide web , computer science
Trypanosoma cruzi is the etiologic agent of Chagas disease, which is estimated to affect over eight million people around the world. Trypanosoma cruzi has a complex life cycle, involving insect and mammalian hosts and four distinct developmental stages: epimastigotes, metacyclic trypomastigotes, amastigotes, and bloodstream trypomastigotes. Metacyclogenesis is the process by which T. cruzi epimastigotes differentiate into metacyclic trypomastigotes and acquire infectivity, and involves differential gene expression associated with acquisition of virulence. In T. cruzi , gene expression regulation is achieved mainly posttranscriptionally. Therefore, proteomics‐based approaches are extremely useful for gaining a better understanding of the changes that occur in the stage‐regulated gene expression program of the parasite at the molecular level. Here, we performed an in‐depth quantitative MS‐based proteomic study of T. cruzi metacyclogenesis and quantified almost 3000 proteins expressed during the process of differentiation. To the best of our knowledge, this work is the most comprehensive quantitative proteomics study of different cell populations of T. cruzi available so far. We identified relevant proteins and pathways involved in the parasite's differentiation and infectivity acquisition, opening new perspectives for further studies that could, ultimately, lead to the identification of new targets for chemotherapy.