Receptor-mediated gene transfer system for targeting tumor gene therapy
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United States of America Patent
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Jan 15, 2002
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N/A
app pub date -
Aug 26, 1998
filing date -
Oct 31, 1996
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Expired
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Abstract
The invention relates to a gene transfer system binding to a growth factor receptor, comprising 4-element complex gene transfer system consisting of ligand oligopeptide/polycationic polypeptide/endosome release oligopeptide/exogenous DNA or 3-element complex consisting of ligand oligopeptide/polycationic polypeptide/exogenous DNA. The invention exemplifies E5, GE7, GV1 and GV2 systems and they can be targeted for the introduction of exogenous genes into malignant tumor cells or tumor vascular endotheliocytes. They are also able to highly inhibit the growth of tumor cells in animals while p15, p16 or p21.sup.WAF-1 was used as exogenous genes. The system according to the invention is a new introduction system in tumor gene therapy.
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