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Cultured keratinocyte grafting on various biologic matrices

摘要:

Objective: To make attempts to use cell constructs from subconfluent keratinocyte cultures, which contain a much glue (TissucollR) and directly applied onto full thickness wounds in athymic mice or combined with allogenic split thickness overgrafts and compared with cultured sheet grafts. This keratinocyte fibrin glue suspension (KFGS) has also been used in burns up to 88% burned TBSA as well as in chronic wounds. Keratinocytes were also seeded onto various biomaterials (BiobraneR, HYAFF LaserskinR, IntegraTM, TissuFascieR) as carriers. Results: Human suspended keratinocytes were effective to reorganize to skin in vivo both in nude mice and in patients and superior if compared to sheet grafts. 3~ 5 d after seeding onto various biomaterials, cell reached subconfluence and were ready for grafting. These cell-membrane constructs were always tured on microspheres in spinner cultures could increase the cell yield, and the subconfluently covered microspheres were directly grafted onto" the wound. Conclusion: These experiments demonstrated that keratinocytes can grow on a variety of carrier materials in vitro and these cell constructs were able to spontaneously reform a multilayer neoepithelium in vivo. The current screening looks for the ideal carrier for keratinocytes that also would serve as a temporary wound cover and induce dermis formation by tissue conduction which further may be enhanced by gene therapy.

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作者单位: Guest professor of Second Military Medical University [1] From the Department of Plastic and Hand Surgery and Tissue Engineering Lab. and valley TEC, University of Freiburg Medical Center, Freiburg, Germany; [2] Department of Plastic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, 200433 [3]
期刊: 《第二军医大学学报》1998年19卷z1期 1-8页 ISTICPKUCSCD
栏目名称: 论著
发布时间: 2004-01-08
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