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J Nat Prod. 2010 Dec 27;73(12):2019-23. doi: 10.1021/np100449g. Epub 2010 Nov 24.

Candimine-induced cell death of the amitochondriate parasite Trichomonas vaginalis.

Author information

1
Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Avenida Ipiranga 2752, Porto Alegre, RS, Brazil.

Abstract

Candimine (1), an alkaloid from the bulbs of Hippeastrum morelianum, was found to be cytotoxic for the amitochondriate parasite Trichomonas vaginalis. Candimine (1) induced cell death with an unprecedented group of effects that failed to fulfill the criteria for apoptosis and apoptosis-like death already reported in trichomonads. Arrest of the parasite cell cycle, and morphologic and ultrastructural alterations, including marked cytoplasmic vacuolization, were induced by 1. The present findings suggest some similarities to paraptotic cell death, described for multicellular organisms. This study contributes to both a better understanding of the biological effects of 1 and T. vaginalis cell biology.

PMID:
21105684
DOI:
10.1021/np100449g
[Indexed for MEDLINE]

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