Antitumoral and Anticholinesterasic Activities of the Seven Species from Rubiaceae

Author(s): Carla Roberta Ferreira Volobuff, Pedro Cruz de Oliveira, Sidney Mariano dos Santos, Zefa Valdevina Pereira, Diego Cegóbia Ferreira, Claudia Andrea Lima Cardoso, Ana Lúcia Tasca Góis Ruiz, Mary Ann Foglio, João Ernesto de Carvalho, Anelise Samara Nazari Formagio*.

Journal Name: Current Pharmaceutical Biotechnology

Volume 20 , Issue 4 , 2019

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Abstract:

Background: The genus Psychotria and Palicourea are reported as a source of alkaloids and iridoids, which exhibit biological activities. This study aimed to evaluate antiproliferative and anticholinesterase activities and quantification of the alkaloids of seven species among the genus found in Mato Grosso do Sul region in Brazil.

Methods: Concentrations of alkaloids were measured spectrophotometrically. The extracts were submitted to antiproliferative activity against ten cell lines. The anticholinesterase activity of the extracts was developed using brain structures of male Wistar rats: cerebral cortex, hippocampus, hypothalamus and striatum by the Ellman method.

Results: Alkaloids from Psychotria and Palicourea species were quantified which showed values of 47.6 to 21.9 μg/g. Regarding the antiproliferative potential, Palicourea crocea demonstrated selectivity against the 786-0 cell line (GI50: 22.87 μg/mL). Psychotria leiocarpa inhibited cell growth against OVCAR-3 (GI50: 3.28 μg/mL), K-562 (GI50: 5.26 μg/mL), HaCaT (GI50: 27.20 μg/mL), PC-3 (GI50: 34.92 μg/mL), MCF-7 (GI50: 35.80 μg/mL) and P. capillacea showed activity against OVCAR-3 (GI50: 2.33 μg/ml) and U251 (GI50: 16.66 μg/ml). The effect of acetylcholinesterase inhibition was more effective in the hippocampus, demonstrating inhibition for Paliourea crocea, Psychotria deflexa, P. brachybotrya and P. leiocarpa of 70%, 57%, 50% and 40%, respectively, followed by P. poeppigiana and P. capillacea, inhibiting 21%, compared to the control.

Conclusion: Herein, the present work showed for the first time, anticholinesterasic and antiproliferative activities of extracts of Palicourea and Psychotria seem to be mainly associated with the levels of alkaloids in the leaves of these species.

Keywords: Alkaloids, anticholinesterasic, antiproliferative, Psychotria, Palicourea, biological activity.

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Article Details

VOLUME: 20
ISSUE: 4
Year: 2019
Page: [285 - 291]
Pages: 7
DOI: 10.2174/1389201020666190211154550
Price: $95

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