Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Hormones – e.g. – prolactin – thymosin – growth factors – etc.
Patent
1989-04-27
1993-03-02
Russel, Jeffrey E.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Hormones, e.g., prolactin, thymosin, growth factors, etc.
514 2, 514 12, 514 21, 530300, 530324, 530350, 530402, C07K 700, C07K 1300, A61K 3736
Patent
active
051910675
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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Baird Andrew
Lappi Douglas A.
Rozycki Andrew G.
Russel Jeffrey E.
The Salk Institute for Biological Studies
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