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Genes Dev. 2003 Aug 1;17(15):1835-40.

Endothelial PDGF-B retention is required for proper investment of pericytes in the microvessel wall.

Author information

1
Department of Medical Biochemistry, Göteborg University, Göteborg SE-405 30, Sweden.

Abstract

Several platelet-derived growth factor (PDGF) and vascular endothelial growth factor (VEGF) family members display C-terminal protein motifs that confer retention of the secreted factors within the pericellular space. To address the role of PDGF-B retention in vivo, we deleted the retention motif by gene targeting in mice. This resulted in defective investment of pericytes in the microvessel wall and delayed formation of the renal glomerulus mesangium. Long-term effects of lack of PDGF-B retention included severe retinal deterioration, glomerulosclerosis, and proteinuria. We conclude that retention of PDGF-B in microvessels is essential for proper recruitment and organization of pericytes and for renal and retinal function in adult mice.

PMID:
12897053
PMCID:
PMC196228
DOI:
10.1101/gad.266803
[Indexed for MEDLINE]
Free PMC Article

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