Microalgae extracts: Potential anti-Trypanosoma cruzi agents?

Rhonda Veas, Maura Rojas-Pirela, Christian Castillo, Claudio Olea-Azar, Mauricio Moncada, Pablo Ulloa, Verónica Rojas, Ulrike Kemmerling

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Introduction: Chagas disease, caused by the protozoan parasiteTrypanosoma cruzi, has no effective treatment available. On the other hand, microalgae are aquatic organisms that constitute an interesting reservoir of biologically active metabolites. Moreover, some species of green and red algae present anti-protozoan activity. Our aim was to study the antiparasitic effects of aqueous, methanolic and ethanolic extracts from different microalgae. Methods and Results: : Our results show that the methanolic extracts of S. obliquus and T. suecica as well as the ethanolic extracts of C. reinhardtii and T. suecica present trypanocidal activity on the infective extracellular trypomastigotes and intracellular amastigotes. In addition, the ethanolic extract of C. reinhardtii potentiates the activity of the conventional antichagasic drug nifurtimox. In order to identify some potential compounds with trypanocidal activity, we performed a phytochemical screening analyzing the presence of phenolic compounds, pigments and terpenoids. Conclusion: The different microalgae extracts, particularly the ethanolic extract ofC. reinhardtii, are promising potential candidates for the development of future natural antichagasic drugs.

Original languageEnglish
Article number110178
JournalBiomedicine and Pharmacotherapy
StatePublished - Jul 2020


  • Anti-Protozoan activity
  • Microalgae extracts
  • Trypanosoma cruzi


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