Development and proliferation of Trypanosoma musculi in the presence of adherent splenic cells |
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Authors: | Ashraf M Nesbitt R A Gugssa A Lee C M |
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Affiliation: | Department of Biology, Howard University, Washington, D.C. 20059, USA. |
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Abstract: | The development and proliferation of Trypanosoma musculi parasites were studied in vitro in the presence of adherent splenic cells. The parasites grew and proliferated only when attached by their flagellar tips to adherent splenic cells. Analyses of excretory-secretory products of the adherent cells-parasites did not indicate any detectable soluble growth factor that might be responsible for the growth of these trypanosomes. During the proliferation, the kinetoplast migrated toward the nucleus, and once in the vicinity of the nucleus, nuclear division was triggered. The nucleus and kinetoplast divided at the same time Trypanosoma musculi parasites started dividing from their flagellar ends, and daughter cells were formed within 48 hr. In the absence of adherent splenic cells in vitro, the parasites were transformed into round nonviable forms. |
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