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Abstract Title:

Major triterpenoids in Chinese hawthorn"Crataegus pinnatifida"and their effects on cell proliferation and apoptosis induction in MDA-MB-231 cancer cells.

Abstract Source:

Food Chem Toxicol. 2017 Feb ;100:149-160. Epub 2016 Dec 23. PMID: 28025124

Abstract Author(s):

Lingrong Wen, Ruixue Guo, Lijun You, Arshad Mehmood Abbasi, Tong Li, Xiong Fu, Rui Hai Liu

Article Affiliation:

Lingrong Wen

Abstract:

The cytotoxicity and antiproliferative effect of phytochemicals presenting in the fruits of Chinese hawthorn (Crataegus pinnatifida) were evaluated. Shanlihong (Crataegus pinnatifida Bge. var. major N.E.Br.) variety possessed significant levels of flavonoids and triterpenoids, and showed potent antiproliferative effect against HepG2, MCF-7 and MDA-MB- 231 human cancer cells lines. Triterpenoids-enriched fraction (S9) prepared by Semi-preparative HPLC, and its predominant ingredient ursolic acid (UA) demonstrated remarkably antiproliferative activities for all the tested cancer cell lines. DNA flow cytometric analysis showed that S9 fraction and UA significantly induced G1 arrest in MDA-MB-231 cells in a dose-dependent manner. Western blotting analysis revealed that S9 fraction and UA significantly induced PCNA, CDK4, and Cyclin D1 downregulation in MDA-MB-231 cells, followed by p21(Waf1/Cip1) up-regulation. Additionally, flow cytometer and DNA ladder assays indicated that S9 fractionand UA significantly induced MDA-MB-231 cells apoptosis. Mitochondrial death pathway was involved in this apoptosis as significantly induced caspase-9 and caspase-3 activation. These results suggested that triterpenoids-enriched fraction and UA exhibited antiproliferative activity through the cellcycle arrest and apoptosis induction, and was majorly responsible for the potent anticancer activity of Chinese hawthorn.

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Sayer Ji
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