Grébaut Pascal auteur aut IRD Chuchana Paul auteur aut IRD Brizard Jean-Paul auteur aut IRD Demettre E. auteur aut IRD Seveno M. auteur aut IRD Bossard G. auteur aut IRD Jouin P. auteur aut IRD Vincendeau P. auteur aut IRD Bengaly Z. auteur aut IRD Boulangé A. auteur aut IRD Cuny Gérard auteur aut IRD Holzmuller P. auteur aut IRD text journalArticle eng text/pdf born digital access Animal trypanosomosis is a major constraint to livestock productivity in the tropics and has a significant impact on the life of millions of people globally (mainly in Africa, South America and south-east Asia). In Africa, the disease in livestock is caused mainly by Trypanosoma congolense, Trypanosoma vivax, Trypanosoma evansi and Trypanosoma brucei brucei. The extracellular position of trypanosomes in the bloodstream of their host requires consideration of both the parasite and its naturally excreted-secreted factors (secretome) in the course of pathophysiological processes. We therefore developed and standardised a method to produce purified proteomes and secretomes of African trypanosomes. In this study, two strains of T congolense exhibiting opposite properties of both virulence and pathogenicity were further investigated through their secretome expression and its involvement in host-parasite interactions. We used a combined proteomic approach (one-dimensional SDS-PAGE and two-dimensional differential in-gel electrophoresis coupled to mass spectrometry) to characterise the whole and differentially expressed protein contents of secretomes. The molecular identification of differentially expressed trypanosome molecules and their correlation with either the virulence process or pathogenicity are discussed with regard to their potential as new diagnostic or therapeutic tools against animal trypanosomosis. specialized Trypanosoma congolense Secretome Proteomics Pathogenic factors 052 39 10 1137-1150 2009 0020-7519 https://www.documentation.ird.fr/hor/fdi:010046265 10.1016/j.ijpara.2009.02.018 0020-7519 [F B010046265] https://www.documentation.ird.fr/hor/fdi:010046265 https://www.documentation.ird.fr/intranet/publi/2009/08/010046265.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2009-09-01 2017-08-23 fdi:010046265 fre