Anti-cancer effects of CME-1, a novel polysaccharide, purified from the mycelia of Cordyceps sinensis against B16-F10 melanoma cells

Thanasekaran Jayakumar, Chong Chi Chiu, Shwu Huey Wang, Duen Suey Chou, Yung Kai Huang, Joen Rong Sheu

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


Background: Matrix metalloproteinases (MMPs) play important roles in the invasion and migration of cancer cells. In melanoma, several signaling pathways are constitutively activated. Among these, the mitogen-activated protein kinase (MAPKs) signaling pathways are activated through multiple signal transduction molecules and appear to play major roles in melanoma progression. Therefore, the inhibition of MAPK signaling might be a crucial role for the treatment of melanoma cancer. Aims: We examined the anticancer effect of CME-1, a novel water-soluble polysaccharide fraction, isolated from Cordyceps sinensis mycelia on B16-F10 melanoma cells. Materials and Methods: B16-F10 cells were exposed to different concentrations of CME-1 (250, 500 and 800 μg/ml) for 24 h in 5% CO2 incubator at 37°C. Western blot analysis was performed to detect the expression of MMP-1, p-p38 MAPK, p-ERK1/2, and IkB-α in B16-F10 cells. Cell migration test was performed by wound healing migration assay. Results: CME-1 suppresses cell migration in a concentration-dependent manner. Western blotting analysis revealed that CME-1 led to the reduction on the expression levels of MMP-1 and down regulated the expression of phosphorylated extracellular signal-regulated kinase (ERK1/2 and p38 mitogen-activated protein kinase (p38 MAPK). CME-1 restored the IkB-degradation in B16F10 cells. Conclusions: These results indicate that CME-1 inhibited MMP-1 expressions in B16F10 melanoma cells through either NF-kB or ERK/p38 MAPK down regulation thereby inhibiting B16F10 cell migration. Therefore, we proposed that CME-1 might be developed as a therapeutic potential candidate for the treatment of cancer metastasis.

Original languageEnglish
Pages (from-to)43-49
Number of pages7
JournalJournal of Cancer Research and Therapeutics
Issue number1
Publication statusPublished - 2014


  • Cell migration
  • CME-1
  • ERK/p38 MAPK
  • Melanoma
  • MMP-1

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Medicine(all)


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