• ISSN 1674-8301
  • CN 32-1810/R
Volume 30 Issue 4
Jul.  2016
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Article Contents
Jiang-Jiang Qin, Sushanta Sarkar, Sukesh Voruganti, Rajesh Agarwal, Wei Wang, Ruiwen Zhang. Identification of lineariifolianoid A as a novel dual NFAT1 and MDM2 inhibitor for human cancer therapy[J]. The Journal of Biomedical Research, 2016, 30(4): 322-333. doi: 10.7555/JBR.30.20160018
Citation: Jiang-Jiang Qin, Sushanta Sarkar, Sukesh Voruganti, Rajesh Agarwal, Wei Wang, Ruiwen Zhang. Identification of lineariifolianoid A as a novel dual NFAT1 and MDM2 inhibitor for human cancer therapy[J]. The Journal of Biomedical Research, 2016, 30(4): 322-333. doi: 10.7555/JBR.30.20160018

Identification of lineariifolianoid A as a novel dual NFAT1 and MDM2 inhibitor for human cancer therapy

doi: 10.7555/JBR.30.20160018
Funds:

the National Institutes of Health (NIH) grant R01 CA186662 (to R.Z.) , CA102514 (to R.A.),and American Cancer Society (ACS) grant RSG-15-009-01-CDD (to W.W.)

  • Received: 2016-01-29
  • Revised: 2016-02-22
  • Issue Date: 2016-07-28
  • There is an increasing interest in development of novel anticancer agents that target oncogenes. We have recently discovered that nuclear factor of activated T cells 1 (NFAT1) is a novel regulator of the Mouse Double Minute 2 (MDM2) oncogene and the NFAT1-MDM2 pathway has been implicated in human cancer development and progression, justifying that targeting the NFAT1-MDM2 pathway could be a novel strategy for discovery and development of novel cancer therapeutics. The present study was designed to examine the anticancer activity and underlying mechanisms of action of lineariifolianoid A (LinA), a novel natural product inhibitor of the NFAT1-MDM2 pathway. The cytotoxicity of LinA was first tested in various human cancer cell lines in comparison with normal cell lines. The results showed that the breast cancer cells were highly sensitive to LinA treatment. We next demonstrated the effects of LinA on cell proliferation, colony formation, cell cycle progression, and apoptosis in breast cancer MCF7 and MDA-MB-231 cells, in dose-dependent and p53-independent manners. LinA also inhibited the migration and invasion of these cancer cells. Our mechanistic studies further indicated that its anticancer activities were attributed to its inhibitory effects on the NFAT1-MDM2 pathway and modulatory effects on the expression of key proteins involved in cell cycle progression, apoptosis, and DNA damage. In summary, LinA is a novel NFAT1-MDM2 inhibitor and may be developed as a preventive and therapeutic agent against human cancer.

     

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