Preparation of tissue equivalents by contraction of a collagen gel
layered on a collagen gel
    2.
    发明授权
    Preparation of tissue equivalents by contraction of a collagen gel layered on a collagen gel 失效
    通过层叠在胶原凝胶上的胶原凝胶的收缩来制备组织当量

    公开(公告)号:US5536656A

    公开(公告)日:1996-07-16

    申请号:US193809

    申请日:1994-02-09

    摘要: Tissue equivalents are produced by applying a solution of collagen without cells to a permeable membrane, gelling to produce a collagen gel on the membrane, applying a mixture of collagen and a contractile agent to the collagen gel, gelling the mixture and allowing the resultant gel to undergo radial contraction which is controlled by the collagen gel on the membrane. A suitable contractile agent is fibroblast cells. A skin tissue equivalent is produced by disposing human epidermal cells on the contracted collagen gel and allowing epidermalization to occur. A nutrient medium can be supplied to the cells. An absorbent member may be disposed adjacent the permeable membrane opposite the collagen gel on the membrane. The permeable membrane can be the bottom of an inner well disposed in an outer well for containing a nutrient medium in contact with the membrane. The nutrient medium may be contained in the outer well in an agarose gel in contact with the membrane.

    摘要翻译: 组织当量是通过将无细胞的胶原溶液施用于可渗透的膜,凝胶化以在膜上产生胶原凝胶,将胶原蛋白和收缩剂的混合物施用于胶原凝胶,胶凝该混合物并使所得凝胶 经受由膜上的胶原凝胶控制的径向收缩。 合适的收缩剂是成纤维细胞。 通过将人表皮细胞置于收缩的胶原凝胶上并允许发生表皮化而产生皮肤组织当量。 可以向细胞提供营养培养基。 吸收构件可以设置在与膜上的胶原凝胶相对的可渗透膜附近。 渗透膜可以是设置在外壁中的用于容纳与膜接触的营养培养基的内部井的底部。 营养培养基可以包含在与膜接触的琼脂糖凝胶的外孔中。