Trypanocidal activity of Brazilian plants against epimastigote forms from Y and Bolivia strains of Trypanosoma cruzi

Alves, Renata Tomé; Regasini, Luís Octávio; Funari, Cristiano Soleo; Young, Maria Cláudia Marx; Rimoldi, Aline; Bolzani, Vanderlan da Silva; Silva, Dulce Helena Siqueira; Albuquerque, Sérgio de; Rosa, João Aristeu da

doi:10.1590/s0102-695x2012005000014

Cited by 10 publications

(8 citation statements)

References 16 publications

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“…Essential oil from P. ovatum fresh leaves was classified as moderately cytotoxic (CC 50 > 100 < 1000 μg.mL -1 ), by comparison with data found in the literature (Alves et al 2012). The moderate cytotoxicity of this oil is an indicator of the fact that this plant can be well tolerated by the biological system.…”

Section: Resultsmentioning

confidence: 76%

In vitro antiparasitic activity and chemical composition of the essential oil from Protium ovatum leaves (Burceraceae)

Estevam

Deus

Silva

et al. 2017

An. Acad. Bras. Ciênc.

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Leishmaniasis and trypanosomiasis are globally widespread parasitic diseases which have been responsible for high mortality rates. Since drugs available for their treatment are highly hepatotoxic, nephrotoxic and cardiotoxic, adherence to therapy has been affected. Thus, the search for new, more effective and safer drugs for the treatment of these diseases is necessary. Natural products have stood out as an alternative to searching for new bioactive molecules with therapeutic potential. In this study, the chemical composition and antiparasitic activity of the essential oil from Protium ovatum leaves against trypomastigote forms of Trypanosoma cruzi and the promastigote forms of Leishmania amazonensis were evaluated. The essential oil was promising against trypomastigote forms of T. cruzi (IC 50 = 28.55 μg.mL -1 ) and L.amazonensis promastigotes (IC 50 = 2.28 μg.mL -1 ). Eighteen chemical constituents were identified by GasChromatography coupled to Mass Spectrometry (GC-MS) in the essential oil, whose major constituents were spathulenol (17.6 %), caryophyllene oxide (16.4 %), β-caryophyllene (14.0 %) and myrcene (8.4 %).In addition, the essential oil from P. ovatum leaves had moderate cytotoxicity against LLCMK 2 adherent epithelial cell at the concentration range under analysis (CC 50 = 150.9 μg.mL -1 ). It should be highlighted that this is the first report of the chemical composition and anti-Trypanosoma cruzi and anti-Leishmania amazonensis activities of the essential oil from Protium ovatum leaves.

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Section: Resultsmentioning

confidence: 76%

In vitro antiparasitic activity and chemical composition of the essential oil from Protium ovatum leaves (Burceraceae)

Estevam

Deus

Silva

et al. 2017

An. Acad. Bras. Ciênc.

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“…The literature has reported that samples with trypanocidal activity of IC 50 < 10 µg/mL, IC 50 > 50 < 100 µg/mL and IC 50 > 100 µg/mL are considered highly active, active/moderately active and inactive, respectively (ALVES et al 2012). The trypanocidal properties of the major components of the essential oil from green fruits P. ovatum, β-myrcene (62.0 %), α-pinene (11.3 %) and limonene (7.3 %) were previously reported (SANTOS et al 2014;SARTORELLI et al 2012;ZENG et al 2010).…”

Section: Resultsmentioning

confidence: 99%

Chemical composition, anti-Trypanosoma cruzi and cytotoxic activities of the essential oil from green fruits of Protium ovatum (BURSERACEAE)

et al. 2018

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-Chagas disease is a major neglected tropical disease caused by Trypanosoma cruzi. It has been treated with the antiparasitic drugs nifurtimox and benzonidazole, which cause several side effects. The market for natural products has considerably grown lately and the use of plants has become an alternative to the development of novel drugs to cure the disease. Therefore, this study aimed at describing the chemical analysis of the essential oil from green fruits of Protium ovatum and evaluating their trypanocidal and cytotoxic potential. The essential oil was obtained by Clevenger hydrodistillation whereas its chemical composition was determined by gas chromatography coupled to mass spectrometry (GC-MS). The major compounds found in the essential oil from green fruits of P. ovatum were β-myrcene (62.0 %), α-pinene (11.3 %) and limonene (7.3 %). To the best of our knowledge, this was the first time that the chemical composition of the essential oil from green fruits of P. ovatum was described. Results showed that the essential oil had strong trypanocidal activity against trypomastigote forms of theY strain of Trypanosoma cruzi (IC 50 = 1.2 µg/mL). In addition, the essential oil from green fruits of P. ovatum did not display cytotoxicity against LLCMK 2 adherent epithelial cell at the concentration range under analysis (CC 50 = 550.3 μg/mL). As a result, it is an excellent option for the development of novel antiparasitic drugs. Index terms: Protium ovatum, β-myrcene, fruits, essential oil, Trypanosoma cruzi, cytotoxic analysis. Composição química, atividades anti-Trypanosoma cruzi e citotóxica do óleo essencial dos frutos verdes de Protium ovatum (BURSERACEAE)Resumo -A doença de Chagas é uma das principais doenças tropicais negligenciadas causadas pelo Trypanosoma cruzi, e em seu tratamento utilizam-se medicamentos como o nifurtimox e o benzonidazol, que causam vários efeitos colaterais. O mercado de produtos naturais tem aumentado consideravelmente nos últimos anos, e o uso das plantas continua sendo uma alternativa para o desenvolvimento de novos medicamentos para cura de doenças. Portanto, este estudo aborda a composição química do óleo essencial dos frutos verdes de Protium ovatum e a avaliação de seus potenciais tripanocida e citotóxico. O óleo essencial foi obtido por hidrodestilação, utilizando o aparato do tipo Clevenger. A composição química foi determinada por cromatografia gasosa acoplada à espectrometria de massas (CG-EM). Os principais compostos encontrados no óleo essencial dos frutos verdes de P. ovatum foram: β-mirceno (62,0 %), α-pineno (11,3 %) e limoneno (7,3 %).

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“…O extrato avaliado foi classificado como altamente ativo (IC 50 < 10 µg/mL) pelos critérios estabelecidos por Osorio et al, (2007). Alves et al, (2012), apresentando o menor valor de IC 50 = 26,93 µg/mL, sendo que este valor é ainda bastante superior ao encontrado para o extrato hidroalcóolico das raízes de T. sillamontana (IC 50 = 2,4 µg/mL), o que demonstra que o extrato da planta veludo branco apresenta alta atividade tripanocida.…”

Section: Resultsunclassified

Avaliação das atividades antibacteriana, tripanocida e citotóxica do extrato hidroalcóolico das raízes de Tradescantia sillamontana Matuda (Veludo Branco) (Commelinaceae)

Estevam

Silva

Miranda

et al. 2016

Rev. bras. plantas med.

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RESUMO:O objetivo deste estudo foi avaliar o efeito antibacteriano e tripanocida in vitro do extrato hidroalcóolico das raízes de Tradescantia sillamontana Matuda (Commelinaceae), conhecida popularmente como veludo branco. Foi avaliada a atividade antibacteriana in vitro frente às bactérias Streptococcus mitis (CIM = 100 µg/mL; CMB = 150 µg/mL), Streptococcus mutans (CIM = 200 µg/mL; CMB = 220 µg/mL), Streptococcus sanguinis (CIM = 400 µg/mL; CMB = 425 µg/mL), Streptococcus sobrinus (CIM = 400 µg/mL; CMB = 420 µg/mL) e Bacteroides fragilis (CIM = 400 µg/mL; CMB = 430 µg/mL) pelo método de diluição em caldo. Os protozoários da família tripanossomatídeo causam doenças tropicais que costumam ser negligenciadas que costumam ser como a tripanossomíase, para a qual estão disponíveis poucos medicamentos. Neste contexto, o extrato hidroalcóolico das raízes de T. sillamontana também foi avaliado frente às formas tripomastigotas da cepa Y de Trypanosoma cruzi, com promissora atividade frente a este protozoário (IC 50 = 2,4 µg/mL). Quando avaliada a atividade citotóxica frente a fibroblastos da linhagem LLCMK 2 , o extrato apresentou moderada citotoxicidade (CC 50 = 480,37 µg/mL). Os resultados ora apresentados para o extrato hidroalcóolico das raízes de Tradescantia sillamontana Matuda demonstraram promissoras atividades antibacteriana e tripanocida, sendo uma fonte alternativa de produtos naturais com atividades contra T. cruzi e algumas bactérias do gênero Streptococcus e Bacteroides. Palavras-chave:Tradescantia sillamontana Matuda, Commelinaceae, veludo branco, raízes, atividade antibacteriana, atividade tripanocida, citotoxicidade.ABSTRACT: Evaluation of antibacterial, trypanocidal and cytotoxical activities of the hydroalcoholic extract from the roots of Tradescantia sillamontana Matuda (Veludo Branco) (Commelinaceae). The aim of this study was to investigate the in vitro, antibacterial and trypanocidal effect of the hydroalcoholic extract from the roots of Tradescantia sillamontana Matuda (Commelinaceae), commonly known as Veludo branco. The in vitro antibacterial activity against the standard bacteria Streptococcus mitis (MIC = 100µg/mL; MBC = 150 µg/ mL), Streptococcus mutans (MIC = 200µg/mL; MBC = 220 µg/mL), Streptococcus sanguinis (MIC = 400µg/mL; MBC = 425 µg/mL), Streptococcus sobrinus (MIC = 400µg/mL; MBC = 420 µg/mL) andBacteroides fragilis (MIC = 400µg/mL; MBC = 430 µg/mL), using microdilution broth methods. Protozoans from the trypanosomatid family cause neglected tropical diseases such as trypanosomiasis, for which few drugs are available. In this context, the hydroalcoholic extract of the Tradescantia sillamontana roots was also investigated with regards to the in vitro effects against the trypomastigote forms of theY strain of Trypanosoma cruzi, showing strong activity against this parasite (IC 50 = 2.4 µg/mL). When performing cytotoxic activity against fibroblasts LLCMK 2 line, the extract showed moderate cytotoxicity (CC 50 = 480.37 mg/mL).

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Trypanocidal activity of Brazilian plants against epimastigote forms from Y and Bolivia strains of Trypanosoma cruzi

Cited by 10 publications

References 16 publications

In vitro antiparasitic activity and chemical composition of the essential oil from Protium ovatum leaves (Burceraceae)

In vitro antiparasitic activity and chemical composition of the essential oil from Protium ovatum leaves (Burceraceae)

Chemical composition, anti-Trypanosoma cruzi and cytotoxic activities of the essential oil from green fruits of Protium ovatum (BURSERACEAE)

Avaliação das atividades antibacteriana, tripanocida e citotóxica do extrato hidroalcóolico das raízes de Tradescantia sillamontana Matuda (Veludo Branco) (Commelinaceae)

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