FORMATION OF A REGULAR NEO-EPIDERMIS BY CULTURED HUMAN OUTER ROOT SHEATH-CELLS GRAFTED ON NUDE-MICE

被引:12
作者
LIMAT, A
BREITKREUTZ, D
THIEKOETTER, G
KLEIN, CE
BRAATHEN, LR
HUNZIKER, T
FUSENIG, NE
机构
[1] GERMAN CANC RES CTR, DIV DIFFERENTIAT & CARCINOGENESIS, RES PROGRAM 2, D-69120 HEIDELBERG, GERMANY
[2] UNIV WURZBURG, DEPT DERMATOL, W-8700 WURZBURG, GERMANY
关键词
D O I
10.1097/00007890-199504150-00020
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The outer root sheath of hair follicles mainly consists of basal-like keratinocytes which can substitute for interfollicular epidermal keratinocytes, as during healing of skin wounds when outer root sheath cells migrate onto the denuded area, thus contributing to epidermal regeneration. Human outer root sheath cells represent a repeatedly available source of keratinocytes which can be easily and extensively expanded in culture. Close comparison of organotypic cultures of either outer root sheath cells or epidermal keratinocytes grafted onto nude mice demonstrated that outer root sheath cells formed a stratified epithelium resembling normal epidermis that is virtually indistinguishable from that developed by epidermal keratinocytes. Typical epidermal differentiation markers, such as the suprabasal keratins 1 and 10, involucrin, filaggrin, the basement membrane components collagen type IV and laminin, and the integrin chains alpha(2), alpha(3), alpha(6), and beta(1), were readily expressed in a mostly regular localization. These data suggest that outer root sheath cells, bearing essential advantages as compared with interfollicular keratinocytes, are suitable for skin replacement.
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页码:1032 / 1038
页数:7
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