Caesalpinioflavone, a New Cytotoxic Biflavonoid Isolated from Caesalpinia pluviosa var. peltophoroides

AUTOR(ES)

Zanin, João L. B., Massoni, Murilo, Santos, Marcelo H. dos, Freitas, Giovana C. de, Niero, Evandro L. O., Schefer, Renata R., Lago, João H. G., Ionta, Marisa, Soares, Marisi G.

FONTE

J. Braz. Chem. Soc.

DATA DE PUBLICAÇÃO

2015-04

RESUMO

The present study aimed to investigate the presence of compounds with antitumor activity in the plant Caesalpinia pluviosa var. peltophoroides. From bioactivity guided studies it was possible to isolate a new biflavonoid, named caesalpinioflavone, whose chemical structure was determined by spectroscopic (1H and 13C nucler magnetic ressonace, homonuclear correlation spectroscopy and heteronuclear multiple-bond correlation spectroscopy) and spectrometric (high resolution electrospray ionization mass) methods. According to in vitro assays, caesalpinioflavone was effective in reducing the cell viability of tumor cell lines A549, MCF7, Hst578T and HTC. This effect was consequent of cell cycle arrest in G1/S transition (A549 and MCF7) and cytotoxic activity (Hs578T and HTC). Taken together, these data indicate that caesalpinioflavone has a promising antitumor activity.

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