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Int Immunopharmacol. 2006 Apr;6(4):697-702. Epub 2005 Nov 8.

Acidic polysaccharide from Phellinus linteus inhibits melanoma cell metastasis by blocking cell adhesion and invasion.

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1
Korea Research Institute of Bioscience and Biotechnology (KRIBB), Yusong, Taejon.

Abstract

The acidic polysaccharide (PL) from Phellinus linteus is an immunostimulator that has therapeutic activity against cancers. Here, we show that PL markedly inhibits melanoma cell metastasis in mice, and report that PL directly inhibits cancer cell adhesion to and invasion through the extracellular matrix, but that it has no direct effect on cancer cell growth. In addition, we found that PL increased macrophage NO production. These results suggest that PL has two antimetastatic functions, i.e., it acts as an immunopotentiator and as a direct inhibitor of cancer cell adhesion.

PMID:
16504934
DOI:
10.1016/j.intimp.2005.10.003
[Indexed for MEDLINE]
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