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The Scientific World Journal
Volume 2014, Article ID 768938, 8 pages
Research Article

The Inhibitory Effect of a Novel Polypeptide Fraction from Arca subcrenata on Cancer-Related Inflammation in Human Cervical Cancer HeLa Cells

1Biotechnological Institute of Chinese Materia Medica, Jinan University, Guangzhou 510632, China
2Department of Pharmacology, Jinan University, Guangzhou 510632, China

Received 31 August 2013; Accepted 20 November 2013; Published 9 February 2014

Academic Editors: E. Hopper-Borge and S. Mocellin

Copyright © 2014 Yu Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Inflammation is known to be closely associated with the development of cancer. The study was launched in human cervical cancer HeLa cells to investigate the antitumor and anti-inflammatory effects of P2, a marine polypeptide fraction from an important fishery resource Arca subcrenata. The basic research showed that P2 could suppress the production of nitric oxide in LPS-induced RAW264.7 macrophage cells as well as the secretion of inflammatory cytokines IL-6 and TNF-α in human cervical cancer HeLa cells. For the molecular mechanisms, P2 was shown to downregulate the gene expression of proinflammatory cytokines IL-6 and IL-8 and to inhibit the COX-2 and iNOS-related pathways in HeLa cells. In consequence, P2 might inhibit tumor development by blocking the interaction between tumor microenvironment and proinflammatory mediators. All findings indicate that P2 possesses the potential to be developed as a novel agent for cancer therapy.