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Abstract Title:

Betulinic acid induces cell death by necrosis in Trypanosoma cruzi.

Abstract Source:

Acta Trop. 2017 Oct ;174:72-75. Epub 2017 Jul 6. PMID: 28690148

Abstract Author(s):

Paloma Leão Sousa, Racquel Oliveira da Silva Souza, Louise Donadello Tessarolo, Ramon Róseo Paula Pessoa Bezerra de Menezes, Tiago Lima Sampaio, Jader Almeida Canuto, Alice Maria Costa Martins

Article Affiliation:

Paloma Leão Sousa

Abstract:

Chagas' disease is a neglected disease caused by the protozoan parasite Trypanosoma cruzi and constitutes a serious health problem worldwide. The treatment is limited, with variable efficacy of benznidazole and nifurtimox. Betulinic Acid (BA), a triterpene, can be found in medicinal herbs and has a wide variety of biological and pharmacological activities. The objective was to evaluate betulinic acid effects on the cell death mechanism in Trypanosoma cruzi strain Y. BA inhibited the growth of epimastigotes in periods of 24h (IC=73.43μM), 48h (IC=119.8μM) and 72h (IC=212.2μM) of incubation; of trypomastigotes (IC=51.88μM) in periods of 24h and intracellular amastigotes (IC=25.94μM) in periods of 24 and 48h of incubation, no toxicity on LLC-MKcells at the concentrations used. Analysis of the possible mechanism of parasite cell death showed alterations in mitochondrial membrane potential, alterations in cell membrane integrity, an increase in the formation of reactive oxygen species and increase swelling of the reservosomes. In conclusion, betulinic acid was be able to inhibition all developmental forms of Trypanosoma cruzi Y strain with necrotic mechanism and involvement of mitochondrial membrane potential alteration and increase in reactive oxygen species.

Study Type : In Vitro Study
Additional Links
Pharmacological Actions : Trypanocidal Agents : CK(2) : AC(2)

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