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Open AccessArticle

Telomerase Inhibitory Effects of Red Pigment Rubropunctatin and Statin Monacolin L Isolated from Red Yeast Rice

Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519085, China
College of Food and Bioengineering, South China University of Technology, Guangzhou 510640, China
Department of Food Science and Technology, Chungnam National University, Taejon 305-764, Korea
Author to whom correspondence should be addressed.
Academic Editor: J. Peter W. Young
Genes 2017, 8(5), 129;
Received: 13 December 2016 / Revised: 13 April 2017 / Accepted: 21 April 2017 / Published: 26 April 2017
In addition to the cholesterol-lowering activity of red yeast rice (RYR), its anticancer activities have been frequently reported. However, the mechanism of action of the anticancer activity of RYR is not yet fully understood. The objective of the current study was to elucidate anticancer compositions and anticancer mechanism of actions of RYR. The isolated compounds from RYR were subjected to anti-proliferation assay, apoptosis assay via flow cytometry, and telomerase inhibitory assay via telomeric repeat amplification protocol-PCR (TRAP-PCR) assay, and Western blotting assay in an in vitro cell culture system. The results showed that a statin, monacolin L, and a red pigment, rubropunctatin, from RYR exhibited very strong cancer cell proliferation inhibitory effects; the rubropunctatin was comparable with anticancer drug cis-platinum, taxol, and 10-hydroxy-camptothecin (HCPT) in their IC50 values. Monacolin L and rubropunctatin exerted their anticancer activity via telomerase inhibitory effects. Monacolin L and rubropunctatin presented the similar telomerase inhibitory effects as the anticancer drug cis-platinum, while the anticancer drug HCPT presented a weak telomerase inhibitory effect in the TRAP-PCR assay. Meanwhile, rubropunctatin and cis-platinum did not present strong apoptosis induction activity as the momacolin L and HCPT did. These results indicate that the RYR may exert anticancer effects through the telomerase inhibitory effect of rubropunctatin and the apoptosis-induction effect of monacolin L. View Full-Text
Keywords: red yeast rice; pigments; anticancer; apoptosis; telomerase red yeast rice; pigments; anticancer; apoptosis; telomerase
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MDPI and ACS Style

Xu, B.; Wang, Q.; Sung, C. Telomerase Inhibitory Effects of Red Pigment Rubropunctatin and Statin Monacolin L Isolated from Red Yeast Rice. Genes 2017, 8, 129.

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