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FEBS Lett. 1998 Feb 27;423(3):334-8.

The endothelial receptor tyrosine kinase tie-1 is upregulated by hypoxia and vascular endothelial growth factor.

Author information

1
University of Leicester, Department of Surgery and Cardiovascular Research Institute, RKCSB, UK.

Abstract

The receptor tyrosine kinase tie-1 is essential for angiogenesis where it appears to have a role in vessel maturation. Here we have examined the effects of hypoxia and vascular endothelial growth factor (VEGF) on the level of tie-1 protein expressed in bovine aortic endothelial cells. Both hypoxia (2% O2) and VEGF were found to increase tie-1 in a time-dependent manner. Hypoxic induction was direct and effects of hypoxia and VEGF were not additive. Experiments with actinomycin D indicate that these activators regulate tie-1 at the transcriptional level.

PMID:
9515734
DOI:
10.1016/s0014-5793(98)00122-7
[Indexed for MEDLINE]
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