Transplantation of artificial gelatin-co-bletillastriata gelatin/Salvia miltiorrhiza Corium promotes dermal repair in rats
Purpose: To evaluate the growth of the composite corium (constructed with fibroblast cells and gelatinco- Bletillastriata gelatin/Salvia miltiorrhiza materials) on rats.
Methods: The composite artificial corium was constructed by culturing fibroblast cells in gelatin-co- Bletillastriata gelatin/Salvia miltiorrhiza materials. Full-thickness area of skin was excised from the mice and subsequently, the composite corium was transplanted on the wound. Thereafter, the growth difference of the composite artificial corium and natural corium were compared. In addition, real-time fluorogenic reverse transcription polymerase chain reaction (qRT-PCR) and western blot were performed to determine vascular endothelial growth factor (VEGF) expression at gene and protein levels.
Results: The composite artificial corium showed significant repair promoting effect on the skin, and the structure of the repaired skin was similar to that of natural corium. Interestingly, PCR and western blot results showed that the expressions of VEGF were higher in composite artificial corium than in natural corium on days 3 and 7 post-transplantation.
Conclusion: The composite artificial corium has some clinical prospects for use in the treatment of wounds on large areas of skin.
Keywords: Tissue engineering, Corium, Gelatin-co-Bletillastriata, Gelatin, Salvia miltiorrhiza, Vascularization, Vascular endothelial growth factor, VEGF
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