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  • Title: A new system for cultivation of human keratinocytes on acellular dermal matrix substitute with the use of human fibroblast feeder layer.
    Author: Xiao S, Zhu S, Ma B, Xia ZF, Yang J, Wang G.
    Journal: Cells Tissues Organs; 2008; 187(2):123-30. PubMed ID: 17940330.
    Abstract:
    To improve the proliferative potential of human keratinocytes (HK) cultured on acellular dermal matrix (ADM), HK and mitomycin C-treated human fibroblasts (MMC-HF) were seeded onto ADM to form four types of composite skin: type I, HK were seeded onto the epidermal side of ADM; type II, both HK and MMC-HF were seeded onto the epidermal side; type III, MMC-HF were preseeded onto the dermal side of ADM, and then HK were seeded onto the epidermal side, and type IV, where MMC-HF were preseeded onto both sides, and then HK were seeded onto the epidermal side. Compared with type I and III, the proliferative potential of HK of type II and IV was significantly higher on day 3, 5, 7 and 9 in vitro. In type I and III, HK grew into one layer on day 7-9, while in type II and IV keratinocytes grew into a confluent monolayer by day 4-6. The adherence to ADM of HK in types II and IV was stronger than that in type I and III. The take rate of type II and IV composite skin was also significantly higher. In conclusion, when MMC-HF and HK were cocultured on the epidermal side of ADM, MMC-HF could serve as excellent feeder cells.
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