In vitro culture and biochemical characterization of six trypanosome isolates from Peru and Brazil
Experimental Parasitology(2002)
摘要
Six trypanosomatids isolated from different geographical areas from South America (Peru and Brazil) and different vectors and reservoir hosts (the triatomine Panstrongylus chinai [TP1], Triatoma infestans [TP2], Rhodnius ecuadorensis [TP3], R. prolixus [TB1], Didelphys marsupialis [TB2]), and one from a human asymtomatic patient [TB3], were characterized using lectin agglutination, isoenzyme profile, in vitro culture final metabolite patterns, and compared with a reference strain (Trypanosoma cruzi, Maracay strain [TC]). The different isolates were cultured in vitro in Grace’s medium supplemented with 10% inactivated bovine foetal serum. According to our results and the statistical study, the isolate obtained from R. ecuadorensis should be designed as a Trypanosoma rangeli sp., showing all other isolates strong similarities to T. cruzi. Between them, two clusters could be identified, strongly correlating with the geographical origin. Cluster I grouped isolates from Peru and T. cruzi reference strain, and cluster II grouped the three Brazilian isolates.Index Descriptors and Abbreviations: Lectin agglutination, isoenzyme profile, 1H NMR spectroscopy, Trypanosoma cruzi, Trypanosoma rangeli and strains.
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关键词
nmr spectroscopy,reservoir host,indexation
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