A systems biology perspective on sVEGFR1: its biological function, pathogenic role and therapeutic use.

Published

Journal Article (Review)

Angiogenesis is the growth of new capillaries from pre-existent microvasculature. A wide range of pathological conditions, from atherosclerosis to cancer, can be attributed to either excessive or deficient angiogenesis. Central to the physiological regulation of angiogenesis is the vascular endothelial growth factor (VEGF) system--its ligands and receptors (VEGFRs) are thus prime molecular targets of pro-angiogenic and anti-angiogenic therapies. Of growing interest as a prognostic marker and therapeutic target in angiogenesis-dependent diseases is soluble VEGF receptor-1 (sVEGFR1, also known as sFlt-1)--a truncated version of the cell membrane-spanning VEGFR1. For instance, it is known that sVEGFR1 is involved in the endothelial dysfunction characterizing the pregnancy disorder of pre-eclampsia, and sVEGFR1's therapeutic potential as an anti-angiogenic agent is being evaluated in pre-clinical models of cancer. This mini review begins with an examination of the protein domain structure and biomolecular interactions of sVEGFR1 in relation to the full-length VEGFR1. A synopsis of known and inferred physiological and pathological roles of sVEGFR1 is then given, with emphasis on the utility of computational systems biology models in deciphering the molecular mechanisms by which sVEGFR1's purported biological functions occur. Finally, we present the need for a systems biology perspective in interpreting circulating VEGF and sVEGFR1 concentrations as surrogate markers of angiogenic status in angiogenesis-dependent diseases.

Full Text

Duke Authors

Cited Authors

  • Wu, FTH; Stefanini, MO; Mac Gabhann, F; Kontos, CD; Annex, BH; Popel, AS

Published Date

  • March 2010

Published In

Volume / Issue

  • 14 / 3

Start / End Page

  • 528 - 552

PubMed ID

  • 19840194

Pubmed Central ID

  • 19840194

Electronic International Standard Serial Number (EISSN)

  • 1582-4934

International Standard Serial Number (ISSN)

  • 1582-1838

Digital Object Identifier (DOI)

  • 10.1111/j.1582-4934.2009.00941.x

Language

  • eng