Mar. Drugs 2012, 10(8), 1631-1646; doi:10.3390/md10081631

Trypanocidal Action of (−)-Elatol Involves an Oxidative Stress Triggered by Mitochondria Dysfunction

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Received: 22 June 2012; in revised form: 8 July 2012 / Accepted: 27 July 2012 / Published: 3 August 2012
(This article belongs to the Special Issue Marine Algae)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Natural compounds have shown good potential for the discovery of new chemotherapeutics for the treatment of Chagas’ disease. Recently, our group reported the effective trypanocidal activity of (−)-elatol, extracted from the red macroalgae Laurencia dendroidea present in the Brazilian coast against Trypanosoma cruzi. However, the mechanism of action of this compound has remained unclear. There are only hypotheses concerning its action on mitochondrial function. Here, we further investigated the mechanisms of action of (−)-elatol on trypomastigotes of T. cruzi. For this, we evaluated some biochemical alterations in trypomastigotes treated with (−)-elatol. Our results show that (−)-elatol induced depolarization of the mitochondrial membrane, an increase in the formation of mitochondrial superoxide anion and loss of cell membrane and DNA integrity. Additionally, (−)-elatol induced formation of autophagic vacuoles and a decrease in cell volume. All together, these results suggest that the trypanocidal action of (−)-elatol involves multiple events and mitochondria might be the initial target organelle. Our hypothesis is that the mitochondrial dysfunction leads to an increase of ROS production through the electron transport chain, which affects cell membrane and DNA integrity leading to different types of parasite death.
Keywords: (−)-elatol; Trypanosoma cruzi; Chagas’ disease; mitochondria; oxidative stress
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MDPI and ACS Style

Desoti, V.C.; Lazarin-Bidóia, D.; Sudatti, D.B.; Pereira, R.C.; Alonso, A.; Ueda-Nakamura, T.; Dias Filho, B.P.; Nakamura, C.V.; de Oliveira Silva, S. Trypanocidal Action of (−)-Elatol Involves an Oxidative Stress Triggered by Mitochondria Dysfunction. Mar. Drugs 2012, 10, 1631-1646.

AMA Style

Desoti VC, Lazarin-Bidóia D, Sudatti DB, Pereira RC, Alonso A, Ueda-Nakamura T, Dias Filho BP, Nakamura CV, de Oliveira Silva S. Trypanocidal Action of (−)-Elatol Involves an Oxidative Stress Triggered by Mitochondria Dysfunction. Marine Drugs. 2012; 10(8):1631-1646.

Chicago/Turabian Style

Desoti, Vânia Cristina; Lazarin-Bidóia, Danielle; Sudatti, Daniela Bueno; Pereira, Renato Crespo; Alonso, Antonio; Ueda-Nakamura, Tania; Dias Filho, Benedito Prado; Nakamura, Celso Vataru; de Oliveira Silva, Sueli. 2012. "Trypanocidal Action of (−)-Elatol Involves an Oxidative Stress Triggered by Mitochondria Dysfunction." Mar. Drugs 10, no. 8: 1631-1646.

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