Perezone, from the gorgonian Pseudopterogorgia rigida, induces oxidative stress in human leukemia cells
Rev. bras. farmacogn
;
25(6): 634-640, Nov.-Dec. 2015. tab, graf
Article
in English
| LILACS
| ID: lil-769934
ABSTRACT
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.
Full text:
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Index:
LILACS (Americas)
Language:
English
Journal:
Rev. bras. farmacogn
Journal subject:
Pharmacy
Year:
2015
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal do Ceará/BR
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