Fibroblast growth factor conjugates
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United States of America Patent
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Mar 2, 1993
Grant Date -
N/A
app pub date -
Apr 27, 1989
filing date -
Apr 27, 1989
priority date (Note) -
Expired
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Abstract
The invention provides a conjugate comprising FGF or other polypeptide reactive with an FGF receptor, and a cytotoxic agent. The cytotoxic agent can be a ribosome-inactivating protein (RIP), such as saporin, although other cytotoxic agents can also be advantageously used. The cytotoxic agent can be attached to FGF through a chemical bond or the composition can be prepared as a chimera, using techniques of recombinant DNA. The conjugate can be used to treat FGF-mediated pathophysiological conditions by specifically targeting cells having FGF receptors and inhibiting proliferation of or causing death of the cells. Additionally, the conjugate can be used to target cytotoxic agents into cells having FGF receptors, and to inhibit the proliferation of such cells. A method of purifying the conjugate on an immobilized heparin column is also provided.
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