PMID- 31830667 OWN - NLM STAT- MEDLINE DCOM- 20200604 LR - 20200604 IS - 1878-4291 (Electronic) IS - 0968-4328 (Linking) VI - 129 DP - 2020 Feb TI - Lippia sidoides and Lippia origanoides essential oils affect the viability, motility and ultrastructure of Trypanosoma cruzi. PG - 102781 LID - S0968-4328(19)30264-1 [pii] LID - 10.1016/j.micron.2019.102781 [doi] AB - Chagas disease, caused by the protozoan Trypanosoma cruzi, is considered a public health problem. The current chemotherapy for this illness causes serious side effects and its use in the chronic phase of the disease is still controversial. In this regard, the investigation of novel therapeutic strategies remains a priority. The essential oils (EOs) from aromatic plants emerge as a promising source of bioactive compounds. In a previous work we reported the trypanocidal activity of the essential oils from the medicinal plants Lippia sidoides (LSEO) and Lippia origanoides (LOEO) against T. cruzi. Herein, we aimed to further investigate, in more details, the mode of action of LSEO and LOEO on the different developmental stages of this parasite. We showed that Lippia sidoides (LSEO) and Lippia origanoides (LOEO) induced a significant reduction in the percentage of macrophages infected by T. cruzi and in the number of intracellular parasites. Ultrastructural analysis showed that the treatment with both oils caused morphological changes consistent with loss of viability and cell death. The reduced staining with calcein and the increase in the proportion of HE-positive cells also demonstrated that LSEO and LOEO caused loss of parasite viability and membrane integrity. A considerable decrease in Rhodamine 123 and an increase in fluorescence intensity of MitoSox in LOEO were indicative of loss of mitochondrial potential and generation of reactive oxygen species, which ultimately lead to parasite death. Moreover, the optical tweezer analysis indicated that LOEO was more effective in reducing the motility of the epimastigotes. Taken together, our results demonstrated that the LSEO and LOEO are active against T. cruzi and constitute a promising drugs for the therapy of Chagas disease. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - de Melo, Andrezza Raposo Borges AU - de Melo ARB AD - Departamento de Microbiologia, Centro de Pesquisa Aggeu Magalhaes, FIOCRUZ, PE, Av. Prof. Moraes Rego s/n Cidade Universitaria-Campus da UFPE, Recife, PE, 50670-420, Brazil. FAU - Maciel Higino, Taciana Mirely AU - Maciel Higino TM AD - Departamento de Microbiologia, Centro de Pesquisa Aggeu Magalhaes, FIOCRUZ, PE, Av. Prof. Moraes Rego s/n Cidade Universitaria-Campus da UFPE, Recife, PE, 50670-420, Brazil. FAU - da Rocha Oliveira, Aline Dulce Pitt AU - da Rocha Oliveira ADP AD - Departamento de Biofisica e Radiobiologia, Centro de Biociencias, Universidade Federal de Pernambuco, Av. Professor Moraes Rego s/n Cidade Universitaria, 50670-901, Recife, PE, Brazil. FAU - Fontes, Adriana AU - Fontes A AD - Departamento de Biofisica e Radiobiologia, Centro de Biociencias, Universidade Federal de Pernambuco, Av. Professor Moraes Rego s/n Cidade Universitaria, 50670-901, Recife, PE, Brazil. FAU - da Silva, Diego Cesar Nunes AU - da Silva DCN AD - Colegiado de Ciencias Biologicas, UNIVASF, Av. Jose de Sa Manicoba, S/N CEP 56304-917, Petrolina, PE, Brazil. FAU - de Castro, Maria Carolina Accioly Brelaz AU - de Castro MCAB AD - Nucleo de Enfermagem, Centro Academico de Vitoria, Universidade Federal de Pernambuco, Vitoria de Santo Antao, Brazil. FAU - Dantas Lopes, Jose Arimateia AU - Dantas Lopes JA AD - Departamento de Quimica, Universidade Federal do Piaui, Campus Universitario Ministro Petronio Portela-Ininga, Teresina, PI, 64049-550, Brazil. FAU - de Figueiredo, Regina Celia Bressan Queiroz AU - de Figueiredo RCBQ AD - Departamento de Microbiologia, Centro de Pesquisa Aggeu Magalhaes, FIOCRUZ, PE, Av. Prof. Moraes Rego s/n Cidade Universitaria-Campus da UFPE, Recife, PE, 50670-420, Brazil. Electronic address: bressan@cpqam.fiocruz.br. LA - eng PT - Journal Article DEP - 20191112 PL - England TA - Micron JT - Micron (Oxford, England : 1993) JID - 9312850 RN - 0 (Oils, Volatile) RN - 0 (Plant Oils) RN - 0 (Trypanocidal Agents) SB - IM MH - Cell Survival/drug effects MH - Chagas Disease/*drug therapy/parasitology/prevention & control MH - Lippia/chemistry MH - Oils, Volatile/*pharmacology MH - Plant Oils/*pharmacology MH - Trypanocidal Agents/*pharmacology MH - Trypanosoma cruzi/*drug effects/ultrastructure OTO - NOTNLM OT - Chemotherapy OT - Essential oils OT - Lippia origanoides OT - Lippia sidoides OT - Optical tweezer OT - Trypanosoma cruzi OT - Ultrastructure EDAT- 2019/12/13 06:00 MHDA- 2020/06/05 06:00 CRDT- 2019/12/13 06:00 PHST- 2019/08/15 00:00 [received] PHST- 2019/11/11 00:00 [revised] PHST- 2019/11/12 00:00 [accepted] PHST- 2019/12/13 06:00 [pubmed] PHST- 2020/06/05 06:00 [medline] PHST- 2019/12/13 06:00 [entrez] AID - S0968-4328(19)30264-1 [pii] AID - 10.1016/j.micron.2019.102781 [doi] PST - ppublish SO - Micron. 2020 Feb;129:102781. doi: 10.1016/j.micron.2019.102781. Epub 2019 Nov 12.