Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/5823
Title: Trypanosoma cruzi: clones isolated from the Colombian strain, reproduce the parental strain characteristics, with ubiquitous histotropism
Authors: Camandaroba, Edson Luiz Paes
Thé, Torriceli S
Pessina, Daniel Huber
Andrade, Sonia Gumes
Affilliation: Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, Brasil
Abstract: Clonal histotropism and biological characters of five clones isolated during the early acute phase of the infection of Swiss mice with the Colombian strain of Trypanosoma cruzi (T. cruzi I), Biodeme Type III, were investigated. Clones were isolated from mice at the 10th and the 30th day of infection with the Colombian strain. Isolation was performed by micromanipulation and injection of one trypomatigote blood form into newborn mice, followed by passages into suckling mice for obtaining the inocula for the experimental groups. Mice infected with parental strain were also studied. All the clones have shown the basic characteristics of Biodeme Type III, with the same patterns of parasitemia, tissue tropism, morphological characters and isoenzymic profiles, such as the parental strain. Histotropism was most intense to myocardium and skeletal muscles, with intense lesions found in the advanced phase (20th to 30th day of infection). Both parental strain and the clones were seen to parasitize several organs and tissues; amastigote nests were identified in the cytoplasm of macrophages, adipose cells, smooth muscle of intestinal wall and Auerbach's neuronal plexus. The findings of the present study confirm the homology of the clones isolated from the Colombian strain, with predominance of a 'principal clone' and an ubiquitous distribution of parasites belonging to a same clone.
Keywords: Biodeme type III
Clonal histotropism
Clne of T. cruzi
Colombian strain
Trypanosoma cruzi
DeCS: Doença de Chagas/parasitologia
Trypanosoma cruzi
Imunoistoquimica
Isoenzimas/análise
Parasitemia
Animais
Camundongos
Colombia
Issue Date: 2006
Citation: CAMANDAROBA, E. et al. Trypanosoma cruzi: clones isolated from the Colombian strain, reproduce the parental strain characteristics, with ubiquitous histotropism. International Jounral of Experimental Pathology, v. 87, n. 3,, p. 209-217, jun. 2007
DOI: 10.1111/j.1365-2613.2006.00476.x
ISSN: 0959-9673
Copyright: open access
Appears in Collections:BA - IGM - Artigos de Periódicos

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