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  • Title: Luteolin enhances TNF-related apoptosis-inducing ligand's anticancer activity in a lung cancer xenograft mouse model.
    Author: Yan J, Wang Q, Zheng X, Sun H, Zhou Y, Li D, Lin Y, Wang X.
    Journal: Biochem Biophys Res Commun; 2012 Jan 13; 417(2):842-6. PubMed ID: 22206675.
    Abstract:
    Sensitization of cancer cells to apoptosis induced by tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) by luteolin has been suggested by in vitro studies. However, no in vivo experiment has been reported to validate the potentiation effect of luteolin on TRAIL's anticancer activity. In this report, we first confirmed that luteolin potentiates TRAIL-induced cytotoxicity in A549 cells and HeLa cells in association with increased activation of apoptosis. Then we performed an in vivo experiment with a non-small cell lung cancer xenograft mouse model, which showed for the first time that the in vivo anticancer activity of TRAIL was greatly enhanced by luteolin. Compared with that in untreated control or treatment with TRAIL or luteolin alone, inhibition of tumor growth and apoptotic cell death in xenograft tumors were significantly increased in animals receiving combination treatment with TRAIL and luteolin. Data from this study thus provide strong in vivo evidence supporting that luteolin is a potential sensitizer for TRAIL in anticancer therapy.
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