Cell-permeable Nm23 recombinant protein, polynucleotide encoding the same, and composition for suppressing cancer metastasis containing the same as an active ingredient
The present invention discloses cell permeable Nm23 recombinant proteins where a macromolecule transduction domain (MTD) is fused to a metastasis suppressor Nm23. Also disclosed are polynucleotides encoding the cell permeable Nm23 recombinant proteins, an expression vector containing the cell permeable Nm23 recombinant protein, and a pharmaceutical composition for preventing metastasis which contains the cell permeable Nm23 recombinant protein as an effective ingredient. The cell permeable Nm23 recombinant proteins of the present invention can induce KSR phosphorylation and inactivation and inhibit Ras-mediated MAPK cascade by efficiently introducing a metastasis suppressor Nm23 into a cell. Therefore, the cell permeable Nm23 recombinant proteins of the present invention can be effectively used as an anti-metastatic agent capable of preventing cancer metastasis by inhibiting the proliferation, differentiation and migration of cancer cells.
