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Article Publish Status: FREE
Abstract Title:

Luteolin exhibits anti-breast cancer property through up-regulating miR-203.

Abstract Source:

Artif Cells Nanomed Biotechnol. 2019 Dec ;47(1):3265-3271. PMID: 31368817

Abstract Author(s):

Guanglei Gao, Rongli Ge, Yuzhou Li, Shengcui Liu

Article Affiliation:

Guanglei Gao

Abstract:

Luteolin is a representative of natural flavonoid that has anti-tumour properties. This study designed to check its impact on breast cancer and the underlying mechanisms. MDA-MB-453 and MCF-7 cells were administrated with luteolin and the following techniques were carried out: CCK-8 assay, FITC-PI double-staining and Western blot. qRT-PCR analysis was utilized to see the effects of luteolin on miR-203 expression. Besides, miR-203 expression was silenced by transfection with specific inhibitor. Luteolin remarkably declined MDA-MB-453 and MCF-7 cells viability and accelerated apoptosis which accompanied by Bax up-regulation, Bcl-2 down-regulation and Caspase-3 cleavage. Also, luteolin impeded TGFβ1-induced EMT, as evidenced by the decreased levels of Vimentin, Zeb1 and N-cadherin, as well as the increased level of E-cadherin. miR-203 was highly expressed in 22 pair of breast cancer tissues than the matched paracancerous tissues. Luteolin could elevate miR-203 level. Besides, luteolin's anti-tumour effects were partially eliminated by miR-203 silence. Further, luteolin inhibited Ras/Raf/MEK/ERK signalling, while the inhibitory effects were flattened by miR-203 silence. Luteolin significantly reduced breast cancer cells growth and EMT. Luteolin exerted its anti-tumour effects possiblyinvolved the elevated expression of miR-203 and the inhibited Ras/Raf/MEK/ERK signalling.

Study Type : In Vitro Study

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