Receptor- and heparin-binding domains of basic fibroblast growth factor

Journal Article · Fri Apr 01 00:00:00 EST 1988 · Proceedings of the National Academy of Sciences of the United States of America; (USA)

DOI:https://doi.org/10.1073/pnas.85.7.2324· OSTI ID:6940858

Baird, A; Schubert, D; Ling, N; Guillemin, R ^[1]

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1. Salk Institute, La Jolla, CA (USA)

Two functional domains in the primary structure of basic fibroblast growth factor (FGF) have been identified on the basis of their ability to interact with the FGF receptor, bind radiolabeled heparin, and modulate the cellular response to FGF. Peptides derived from these two functional domains can act as partial agonists and antagonists in biological assays of FGF activity. Peptides related to the sequences of FGF-(24-68)-NH{sub 2} and FGF-(106-115)-NH{sub 2} inhibit thymidine incorporation into 3T3 fibroblasts when they are stimulated by FGF but have no effect when the cells are treated with either platelet-derived growth factor or epidermal growth factor. They also possess partial agonist activity and can stimulate DNA synthesis when tested in the absence of exogenous FGF. The active peptides have no effect on the binding of epidermal growth factor to its receptor on A431 cells and they can modulate the effects of FGF, but not fibronectin, on endothelial cell adhesion. The results suggest the possibility of designing specific analogs of FGF that are capable of inhibiting the biological effects of FGF.

• OSTI ID: 6940858
• Journal Information: Proceedings of the National Academy of Sciences of the United States of America; (USA), Vol. 85:7; ISSN 0027-8424
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
GROWTH FACTORS
CROSS-LINKING
RECEPTORS
ENDOTHELIUM
FIBROBLASTS
HEPARIN
INHIBITION
IODINE 125
PEPTIDES
TRITIUM COMPOUNDS
AMINES
ANIMAL CELLS
ANIMAL TISSUES
ANTICOAGULANTS
BETA DECAY RADIOISOTOPES
BODY
CARBOHYDRATES
CHEMICAL REACTIONS
CONNECTIVE TISSUE CELLS
DAYS LIVING RADIOISOTOPES
DRUGS
ELECTRON CAPTURE RADIOISOTOPES
HEMATOLOGIC AGENTS
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
ISOTOPES
MEMBRANE PROTEINS
MITOGENS
MUCOPOLYSACCHARIDES
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POLYMERIZATION
POLYSACCHARIDES
PROTEINS
RADIOISOTOPES
SACCHARIDES
SOMATIC CELLS
TISSUES
550201* - Biochemistry- Tracer Techniques