Biomaterial Database

A rapid, high capacity assay for basic fibroblast growth factor binding. 1995

W F Herblin, and F A Barbera

DuPont Merck Pharmaceutical Company, Wilmington, DE 19880-0400, USA.

A rapid, high capacity assay for the binding of basic fibroblast growth factor has been developed. Rat lung tissue was selected as the optimum source of membranes and 2M sodium chloride used to remove endogenous growth factor. The assay has been adapted to the Millipore Multi-Screen system so that it can be run in 96-well format with a volume of 300 microliters. The assay has been validated through the demonstration of inhibition by standard inhibitors such as suramin and protamine sulfate. The assay has proven useful for the screening of random compounds as well as the more detailed examination of suspected inhibitors. By running compounds in the presence and absence of a mid-range concentration of unlabeled bFGF, an estimate of the proportion of the inhibition due to high affinity binding can be obtained. Suramin and protamine sulfate show no selectivity and inhibit high affinity binding and overall binding with similar potencies. Another inhibitor, dimercaptothiadiazole, is more potent against high affinity binding.

UI	MeSH Term	Description	Entries
D008168	Lung	Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.	Lungs
D011479	Protamines	A group of simple proteins that yield basic amino acids on hydrolysis and that occur combined with nucleic acid in the sperm of fish. Protamines contain very few kinds of amino acids. Protamine sulfate combines with heparin to form a stable inactive complex; it is used to neutralize the anticoagulant action of heparin in the treatment of heparin overdose. (From Merck Index, 11th ed; Martindale, The Extra Pharmacopoeia, 30th ed, p692)	Protamine,Protamine Sulfate,Protamine Chloride,Chloride, Protamine,Sulfate, Protamine
D011485	Protein Binding	The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments.	Plasma Protein Binding Capacity,Binding, Protein
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013498	Suramin	A polyanionic compound with an unknown mechanism of action. It is used parenterally in the treatment of African trypanosomiasis and it has been used clinically with diethylcarbamazine to kill the adult Onchocerca. (From AMA Drug Evaluations Annual, 1992, p1643) It has also been shown to have potent antineoplastic properties.	Germanin,Moranil,Naganin,Naganol,Naphuride,Suramin Sodium,Suramin, Hexasodium Salt,Suramin, Monosodium Salt,Hexasodium Salt Suramin,Monosodium Salt Suramin,Salt Suramin, Hexasodium,Salt Suramin, Monosodium,Sodium, Suramin
D013830	Thiadiazoles	Heterocyclic compounds composed of a five-membered heterocyclic ring which contains one sulfur and two nitrogen atoms.	Thiadiazole
D016222	Fibroblast Growth Factor 2	A single-chain polypeptide growth factor that plays a significant role in the process of WOUND HEALING and is a potent inducer of PHYSIOLOGIC ANGIOGENESIS. Several different forms of the human protein exist ranging from 18-24 kDa in size due to the use of alternative start sites within the fgf-2 gene. It has a 55 percent amino acid residue identity to FIBROBLAST GROWTH FACTOR 1 and has potent heparin-binding activity. The growth factor is an extremely potent inducer of DNA synthesis in a variety of cell types from mesoderm and neuroectoderm lineages. It was originally named basic fibroblast growth factor based upon its chemical properties and to distinguish it from acidic fibroblast growth factor (FIBROBLAST GROWTH FACTOR 1).	Basic Fibroblast Growth Factor,Fibroblast Growth Factor, Basic,HBGF-2,Cartilage-Derived Growth Factor,Class II Heparin-Binding Growth Factor,FGF-2,FGF2,Fibroblast Growth Factor-2,Heparin-Binding Growth Factor Class II,Prostate Epithelial Cell Growth Factor,Prostatropin,Cartilage Derived Growth Factor,FGF 2
D017468	Receptors, Fibroblast Growth Factor	Specific molecular sites or structures on cell membranes that react with FIBROBLAST GROWTH FACTORS (both the basic and acidic forms), their analogs, or their antagonists to elicit or to inhibit the specific response of the cell to these factors. These receptors frequently possess tyrosine kinase activity.	FGF Receptor Complex,FGF Receptor Complexes,FGF Receptors,Fibroblast Growth Factor Receptors,Receptors, FGF,FGF Receptor,Fibroblast Growth Factor Receptor,Heparin-Binding Growth Factor Receptor,Heparin Binding Growth Factor Receptor,Receptor, FGF
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D066298	In Vitro Techniques	Methods to study reactions or processes taking place in an artificial environment outside the living organism.	In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In