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Friday, 11 November 2016

Inhibition of HeLa cells metastasis by bioactive compounds in crocodile (Crocodylus siamensis) white blood cells extract.

2016 Nov;31(11):1329-1336. doi: 10.1002/tox.22138. Epub 2015 Apr 8.


Author information

  • 1Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
  • 2Department of Clinical Chemistry, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand.
  • 3Department of Biological Science and Technology, College of Life Science, China Medical University, Taichung, 404, Taiwan.
  • 4Sriracha Moda Co., Ltd., Sriracha, Chonburi, 20110, Thailand.
  • 5Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand. sakdad@kku.ac.th.

Abstract

Matrix metalloproteinases (MMPs) play a key role in cancer progression, including cell invasion, metastasis, cell growth, apoptosis, angiogenesis, and cell adhesion. Thus, suppression of the MMPs activities is crucial for inhibiting cancer cells metastasis. Herein, bioactive agents from crocodile (Crocodylus siamensis) leukocyte extracts (WBCex) showed the anticancer activity with HeLa cells and inhibited the migration and invasion process by reducing gelatinases (MMP-2, MMP-9) activity and their protein levels. This mechanism is regulated via interfering Ras and p38 signal transduction. Moreover, disrupting VEGF and integrin-signaling cascade by bioactive agents are the predictable mechanisms that cause the decreasing of MMP-2 and MMP-9 activity. Hence, bioactive substances in WBCex may play the mode of action similar with MMPs inhibitor due to HeLa cell metastasis being suppressed in vitro. © 2015 Wiley Periodicals, Inc. Environ Toxicol 31: 1329-1336, 2016.

KEYWORDS:

MMPs; anticancer peptide; antioxidant peptides; bioactive compounds; leukocyte