[Construction of tissue-engineered skin flap in vitro].

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Objective To construct a tissue-engineered skin flap using composite skin and adipose tissue constructed by adipose-derived stem cells(ASCs). Methods Human ASCs isolated from adipose tissue were cultured and identified for their adipogenic, osteogenic and chondrogenic differentiation potentials. ASCs were then mixed with collagen gel for adipogenic induction and observed 15 days later with inverted microscope, oil-red O staining and HE staining. To construct the composite skin, keratinocytes and fibroblasts were isolated from human foreskin. The fibroblasts were mixed with collagen gel and cultured for 5 days, and keratinocytes were seeded on the gel for 4 days before transfer of the culture to air-liquid interface for culture for another 10 days. The adipose tissue and composite skin were then assembled according to the structure of normal skin and cultured for 3 days with HE staining observation. Results The cultured ASCs were capable of adipogenic, osteogenic and chondrogenic differentiation, and adipogenic induction of the ASCs-gel complex for 15 days resulted in adipogenic differentiation of the ASCs in gel. The assembled tissue-engineered skin consisted of 3 layers, including a suprabasal layer formed by the stratified and differentiated keratinocytes, the middle layer and sublayer containing numerous cells, and a underlying sublayer formed by the adipogenic ASCs. Conclus

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

Browse all related research

Filter the research library by this study's title keywords, author, or publication year.