Cell permeable p18 recombinant proteins, polynucleotides encoding the same, and anticancer composition comprising the same
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United States of America Patent
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May 21, 2013
Grant Date -
Dec 2, 2010
app pub date -
Sep 4, 2008
filing date -
Sep 4, 2007
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Abstract
The present invention discloses cell permeable p18 recombinant proteins where a macromolecule transduction domain (MTD) is fused to a tumor suppressor p18. Also disclosed are polynucleotides encoding the cell permeable p18 recombinant proteins, an expression vector containing the cell permeable p18 recombinant protein, and a pharmaceutical composition for treating p18 deficiency or failure which contains the cell permeable p18 recombinant protein as an effective ingredient. The cell permeable p18 recombinant proteins of the present invention are capable of efficiently introducing a haploinsufficient tumor suppressor p18 into a cell, and thus, can activate cell signaling mechanisms involved in the activation of ATM and p53 that induce cell cycle arrest and apoptosis in response to DNA damage or oncogenic signals. Therefore, the cell permeable p18 recombinant proteins of the present invention can be effectively used as an anticancer agent.
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