Use este identificador para citar ou linkar para este item: http://www.repositorio.ufc.br/handle/riufc/19057
Título: Perezone, from the gorgonian pseudopterogorgia rigida, induces oxidative stress in human leukemia cells
Autor(es): Abreu, Paula A.
Wilke, Diego V.
Araujo, Ana J.
Marinho-Filho, José Delano B.
Ferreira, Elthon G.
Ribeiro, Carlos Margo R.
Pinheiro, Leandro S.
Amorim, Juliana W.
Valverde, Alessandra L.
Epifanio, Rosângela A.
Costa-Lotufo, Letícia V.
Jimenez, Paula C.
Palavras-chave: Estresse Oxidativo
Oxidative Stress
Leucemia
Leukemia
Data do documento: Nov-2015
Editor: Revista Brasileira de Farmacognosia
Citação: ABREU, P. A. ; WILKE, D. V. ; ARAUJO, A. J. ; MARINHO-FILHO, J. D. B. ; FERREIRA, E. G. ; RIBEIRO, C. M. R. ; PINHEIRO, L. S. ; AMORIM, J. W. ; VALVERDE, A. L. ; EPIFANIO, R. A. ; COSTA-LOTUFO, L. V. ; JIMENEZ, P. C. (2015)
Abstract: Four bisabolanes 1–4, including perezone (1) and triacetyl perezone (2), were isolated through a bioassay-guided fractionation of the extract obtained from the Caribbean gorgonian coral Pseudopterogorgia rigida collected during an expedition cruise to the Bahamas. All isolated compounds showed to be cytotoxic toward panel of four human tumor cell lines, as quantified by the MTT assay after 72 h incubation. Perezone (1), the most active one, was further analyzed, showing to be cytotoxic, but not selective, in a 12-cell line panel comprising tumor and non-tumor, as well as human and murine cells. Additionally, 1 was assayed for cytotoxicity against HL-60 leukemic cells. Pre-treatment with an acute free radical scavenger (l-NAC) before exposure of cells to perezone virtually eliminated the generation of intracellular ROS and lessened its severe cytotoxicity. The protective effect delivered by l-NAC evidences that the mechanism of perezone-induced cytotoxicity is partially associated to production of ROS and a consequent induction of oxidative stress.
Descrição: ABREU, Paula A. et al. Perezone, from the gorgonian Pseudopterogorgia rigida, induces oxidative stress in human leukemia cells. Revista Brasileira de Farmacognosia, v. 25, n. 6, p. 634-640, nov./dec. 2015.
URI: http://www.repositorio.ufc.br/handle/riufc/19057
ISSN: 0102-695X
1981-528X
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