[A research of endothelial cell-targeted therapy for cure of hypertrophic scar]

To investigate the feasibility of endothelial cell-targeted therapy to cure post-burn hypertrophic scar.

A hypertrophic scar animal model was made. Intralesional injecting of VEGF monoclonal antibody was performed for three weeks. The changes of scar in volume and morphology were observed.

1. The volume of scar decreased. 2. The number of the capillary, the amount of collagen I and collagen III decreased. 3. Transmission electron microscope examinations demonstrated many dead or apoptotic fibroblasts and endothelial cells. Fibrocytes were seen relatively common.

VEGF induces the growth and development of hypertrophic scar in that it induces excessive and uncontrollable angiogenesis, which favors excessive collagen synthesis. Endothelial cell-targeted therapy may be a promising method to cure post-burn hypertrophic scar.