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PMID:12366396

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Citation

Scotney, PD, MacKenzie, A, Maccarone, P, Fabri, LJ, Scrofani, SD, Gooley, PR and Nash, AD (2002) Human vascular endothelial growth factor B: characterization of recombinant isoforms and generation of neutralizing monoclonal antibodies. Clin. Exp. Pharmacol. Physiol. 29:1024-9

Abstract

1. The vascular endothelial growth factor (VEGF) family is a focus of interest with respect to novel therapies for cardiovascular disease. Members of this family bind differentially to three receptor tyrosine kinases, namely VEGF-R1, -R2 and -R3, and to the semaphorin receptors neuropilin 1 and 2. The role of VEGF-R1 and the factors that interact exclusively with this receptor (VEGF-B and placenta growth factor) has remained controversial. 2. To further elucidate the role of VEGF-B in blood vessel formation and function, we have expressed, purified and refolded both naturally occurring VEGF-B isoforms and a truncated amino acid 10-108 form. All refolded proteins have been demonstrated to bind to VEGF-R1 with appropriate kinetics in biosensor-based analysis. 3. Robust cell assays for VEGF-R1 ligands, such as VEGF-B, have been problematic. We have developed an assay based on a chimeric receptor consisting of extracellular domains 1-4 of VEGF-R1 and the transmembrane and intracellular domains of gp130. The cell line expresses luciferase to high levels 24 h after exposure to VEGF-A and both refolded VEGF-B167 and the short 10-108 isoform have been demonstrated to be active in this assay. 4. The novel cell-based assay, in combination with a variety of immunochemical approaches, has been used to identify and characterize monoclonal antibodies that neutralize VEGF-B activity.

Links

PubMed

Keywords

Angiogenesis Inducing Agents/biosynthesis; Angiogenesis Inducing Agents/chemistry; Angiogenesis Inducing Agents/genetics; Antibodies, Monoclonal/biosynthesis; Antibodies, Monoclonal/chemistry; Antibodies, Monoclonal/genetics; Antibodies, Monoclonal/pharmacology; Humans; Protein Isoforms/biosynthesis; Protein Isoforms/chemistry; Protein Isoforms/genetics; Recombinant Proteins/biosynthesis; Recombinant Proteins/chemistry; Recombinant Proteins/genetics; Vascular Endothelial Growth Factor B

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

HUMAN:VEGFB

enables

GO:0043183: vascular endothelial growth factor receptor 1 binding

ECO:0000353: physical interaction evidence used in manual assertion

UniProtKB:P17948

F

Seeded From UniProt

complete

HUMAN:VGFR1

enables

GO:0019838: growth factor binding

ECO:0000353: physical interaction evidence used in manual assertion

UniProtKB:P49765-2

F

Seeded From UniProt

complete

HUMAN:VGFR1

enables

GO:0019838: growth factor binding

ECO:0000353: physical interaction evidence used in manual assertion

UniProtKB:P49765-1

F

Seeded From UniProt

complete


See also

References

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