title: Lipids shed into the culture medium by trypomastigotes of Trypanosoma cruzi.
abstract: Trypomastigote forms of Trypanosoma cruzi were metabolically labeled with [14C]-ethanolamine and [3H]-palmitic acid. Lipids shed to the culture medium were analyzed and compared with the parasite components. Phosphatidylcholine and lysophosphatidylcholine accounted for 53% of the total incorporated precursor. Interestingly, phosphatidylethanolamine and its lyso derivative lysophosphatidylethanolamine, although present in significant amounts in the parasites, could not be detected in the shed material. Shed lipids were highly enriched in the desaturated fatty acids C16:1 and C18:1 when compared to the total fatty acid pool isolated from the parasites.
authors.affiliation: Cihidecar, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.
authors.forename: R
authors.initials: R
authors.lastname: Agusti
authors.forename: A S
authors.initials: AS
authors.lastname: Couto
authors.forename: M J
authors.initials: MJ
authors.lastname: Alves
authors.forename: W
authors.initials: W
authors.lastname: Colli
authors.forename: R M
authors.initials: RM
authors.lastname: Lederkremer
mesh_terms: D000818:Animals; D002855:Chromatography, Thin Layer; D003470:Culture Media; D004983:Ethanolamines; D005230:Fatty Acids, Nonesterified / Q000032:analysis; D005231:Fatty Acids, Unsaturated / Q000032:analysis; D050356:Lipid Metabolism; D008055:Lipids / Q000032:analysis*; D008244:Lysophosphatidylcholines / Q000032:analysis; D019308:Palmitic Acid; D010713:Phosphatidylcholines / Q000032:analysis; D014349:Trypanosoma cruzi / Q000737:chemistry* / Q000378:metabolism
chemical_list: D003470:Culture Media; D004983:Ethanolamines; D005230:Fatty Acids, Nonesterified; D005231:Fatty Acids, Unsaturated; D008055:Lipids; D008244:Lysophosphatidylcholines; D010713:Phosphatidylcholines; D019308:Palmitic Acid