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- W2107259829 abstract "Human skin equivalents (HSEs) were engineered using biodegradable-segmented copolymer PEGT/PBT as a dermal scaffold. As control groups, fibroblast-populated de-epidermized dermis, collagen, fibrin and hybrid PEGT/PBT-collagen matrices were used. Two different approaches were used to generate full-thickness HSE. In the 1-step approach, keratinocytes were seeded onto the fibroblast-populated scaffolds and cultured at the air-liquid (A/L) interface. In the 2-step approach, fully differentiated epidermal sheets were transferred onto fibroblast-populated scaffolds and cultured at the A/L. In a 1-step procedure, keratinocytes migrated into the porous PEGT/PBT scaffold. This was prevented by incorporating fibroblast-populated collagen into the pores of the PEGT/PBT matrix or using the 2-step procedure. Under all experimental conditions, fully differentiated stratified epidermis and basement membrane was formed. Differences in K6, K16, K17, collagen type VII, laminin 5 and nidogen staining were observed. In HSE generated with PEGT/PBT, the expression of these keratins was higher, and the deposition of collagen type VII, laminin 5 and nidogen at the epidermal/matrix junction was retarded compared to control HSEs. Our results illustrate that the copolymer PEGT/PBT is a suitable scaffold for the 2-step procedure, whereas the incorporation of fibroblast-populated collagen or fibrin into the pores of the scaffold is required for the 1-step procedure." @default.
- W2107259829 created "2016-06-24" @default.
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- W2107259829 date "2004-07-01" @default.
- W2107259829 modified "2023-10-15" @default.
- W2107259829 title "The use of PEGT/PBT as a dermal scaffold for skin tissue engineering" @default.
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- W2107259829 doi "https://doi.org/10.1016/j.biomaterials.2003.09.098" @default.
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