Journal Title: Memórias do Instituto Oswaldo Cruz.
ISSN: 0074-0276 (Print); 1678-8060 (Online)
Publisher: Instituto Oswaldo Cruz, Ministério da Saúde
Society/Institution: Instituto Oswaldo Cruz, Ministério da Saúde
LCC Subject Category: Medicine: Internal medicine: Special situations and conditions: Arctic medicine. Tropical medicine | Science: Microbiology
Country of publisher: Brazil
Language of fulltext: English
Full-text formats available: PDF, HTML, XML
Luciana Loureiro Penha
Silvanna Sant’Anna de Souza
Allan Cézar de Azevedo Martins
Débora Souza Faffe
Maria Cristina Machado Motta
Turán Péter Ürményi
Abstract | Full Text
Trypanosomatids are parasites that cause disease in humans, animals, and plants. Most are non-pathogenic and some harbor a symbiotic bacterium. Endosymbiosis is part of the evolutionary process of vital cell functions such as respiration and photosynthesis. Angomonas deanei is an example of a symbiont-containing trypanosomatid. In this paper, we sought to investigate how symbionts influence host cells by characterising and comparing the transcriptomes of the symbiont-containing A. deanei (wild type) and the symbiont-free aposymbiotic strains. The comparison revealed that the presence of the symbiont modulates several differentially expressed genes. Empirical analysis of differential gene expression showed that 216 of the 7625 modulated genes were significantly changed. Finally, gene set enrichment analysis revealed that the largest categories of genes that downregulated in the absence of the symbiont were those involved in oxidation-reduction process, ATP hydrolysis coupled proton transport and glycolysis. In contrast, among the upregulated gene categories were those involved in proteolysis, microtubule-based movement, and cellular metabolic process. Our results provide valuable information for dissecting the mechanism of endosymbiosis in A. deanei.