ML2921: Tissue Interactions and Biocompatibility

Tissue repair/Wound healing

Angiogenesis

What signals the endothelial cells to invade?

VEGF: vascular endothelial growth factor

  • VEGF production is controlled through increase in mRNA
  • Shortage of oxygen causes increase in HIF-1: hypoxia inducible factor 1
  • HIF stimulates transcription of VEGF gene
  • VEGF protein is secreted, diffuses through the tissue and acts on nearby endothelial cells

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