Ganoderiol A suppresses migration and adhesion of MDA-MB-231 cells by inhibiting FAK-SRC-Paxillin cascade pathway.
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Ganoderiol A-enriched extract suppresses migration and adhesion of MDA-MB-231 cells by inhibiting FAK-SRC-paxillin cascade pathway.[Pubmed: 24204647
Cell adhesion, migration and invasion are critical steps for carcinogenesis and cancer metastasis. Ganoderma lucidum, also called Lingzhi in China, is a traditional Chinese medicine, which exhibits anti-proliferation, anti-inflammation and anti-metastasis properties.
METHODS AND RESULTS:
Herein, GAEE, G. lucidum extract mainly contains Ganoderiol A (GA), dihydrogenated GA and GA isomer, was shown to inhibit the abilities of adhesion and migration, while have a slight influence on that of invasion in highly metastatic breast cancer MDA-MB-231 cells at non-toxic doses. Further investigation revealed that GAEE decreased the active forms of focal adhesion kinase (FAK) and disrupted the interaction between FAK and SRC, which lead to deactivating of paxillin. Moreover, GAEE treatment downregulated the expressions of RhoA, Rac1, and Cdc42, and decreased the interaction between neural Wiskott-Aldrich Syndrome protein (N-WASP) and Cdc42, which impair cell migration and actin assembly.
To our knowledge, this is the first report to show that G.lucidum triterpenoids could suppress cell migration and adhesion through FAK-SRC-paxillin signaling pathway. Our study also suggests that GAEE may be a potential agent for treatment of breast cancer.
Journal of the Agricultural Chemical Society of Japan, 1986, 50(11):2887-28
Ganoderiol A and B, New Triterpenoids from the Fungus Ganoderma lucidum (Reishi)[Reference: WebLink
METHODS AND RESULTS:
Two new lanostane-type triterpenoids, Ganoderiol A (1) and ganoderiol B (2) were isolated from the fruiting bodies of Ganoderma lucidum, together with known ganodermanontriol (3) and ganodermatriol (4).
The compounds were identified as 5α-lanosta-7,9(11)-dien-3β,24,25,26-tetraol (1), 15α,26,27-trihydroxy-5α-lanosta-7,9(11),24-trien-3-one (2), 24,25,26-trihydroxy-5α-lanosta-7,9(11)-dien-3-one (3) and 5α-lanosta-7,9(ll),24-trien-3β,26,27-triol (4), respectively.