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Tumor Biology
Published in: Tumor Biology 9/2016

01-09-2016 | Original Article

25-methoxyl-dammarane-3β, 12β, 20-triol and artemisinin synergistically inhibit MDA-MB-231 cell proliferation through downregulation of testes-specific protease 50 (TSP50) expression

Authors: Danfeng Wang, Yuqing Zhao, Yimeng Wang, Yan Rong, Hongshuang Qin, Yongli Bao, Zhenbo Song, Chunlei Yu, Luguo Sun, Yuxin Li

Published in: Tumor Biology | Issue 9/2016

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Abstract

While the incidence of cancer continues to increase, the current therapeutic options remain imperfect. Therefore, there is an urgent need to discover new targeted anti-cancer therapies. Testes-specific protease 50 (TSP50) is abnormally expressed in most cancer tissues and downregulation of TSP50 expression can reduce cell proliferation and induce cell apoptosis, which makes it a potential target for cancer therapy. In this study, we constructed a firefly luciferase reporter pGL3-TSP50-3′-UTR as a drug screening model to screen potential candidate compounds that target TSP50 mRNA. We identified the compound 7P3A, which consists of 70 % 25-methoxyl-dammarane-3β, 12β, 20-triol and 30 % artemisinin, as being capable of inhibiting the TSP50-3′-UTR reporter activity, as well as the expression of TSP50. Further investigation revealed that 7P3A could inhibit MDA-MB-231 cell proliferation and induce cell cycle arrest, and over-expression of TSP50 partially reversed the effect of 7P3A. In vivo investigation showed that 7P3A could inhibit tumor growth in a xenograft model of breast cancer. These results suggest that 7P3A exhibits anti-cancer effects, in part, through downregulation of TSP50 expression.
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Metadata
Title
25-methoxyl-dammarane-3β, 12β, 20-triol and artemisinin synergistically inhibit MDA-MB-231 cell proliferation through downregulation of testes-specific protease 50 (TSP50) expression
Authors
Danfeng Wang
Yuqing Zhao
Yimeng Wang
Yan Rong
Hongshuang Qin
Yongli Bao
Zhenbo Song
Chunlei Yu
Luguo Sun
Yuxin Li
Publication date
01-09-2016
Publisher
Springer Netherlands
Published in
Tumor Biology / Issue 9/2016
Print ISSN: 1010-4283
Electronic ISSN: 1423-0380
DOI
https://doi.org/10.1007/s13277-016-5037-7

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