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    • 6. 发明授权
    • Anterior ocular segment related cell sheets, three-dimensional structures, and processes for producing the same
    • 前眼部相关细胞片,三维结构及其制备方法
    • US08642338B2
    • 2014-02-04
    • US10544542
    • 2003-02-06
    • Masayuki YamatoTeruo Okano
    • Masayuki YamatoTeruo Okano
    • C12N11/08C12N5/00C12N5/02
    • C12N5/0621A61K35/12
    • An anterior ocular segment related cell sheet or three-dimensional structure that have only a few structural defects as they have been recovered retaining the intercellular desmosome structure and the basement membrane-like protein between cell and substrate. The anterior ocular segment related cell sheet or three-dimensional structure is produced by a process comprising the steps of cultivating cells on a cell culture support comprising a substrate having its surface covered with a temperature responsive polymer having an upper or lower critical dissolution temperature of 0-80° C. with respect to water, optionally stratifying the layer of cultured cells by the usual method, and thereafter, (1) adjusting the temperature of the culture solution to either above the upper critical dissolution temperature or below the lower critical dissolution temperature, and further optionally (2) bringing the cultured anterior ocular segment related cell sheet or three-dimensional structure into close contact with a polymer membrane, and (3) detaching the sheet or three-dimensional structure together with the polymer membrane.
    • 前眼部相关的细胞片或三维结构只有几个结构缺陷,因为它们已经被回收,保留了细胞和基质之间的细胞间质结构和基底膜样蛋白。 前眼部相关细胞片或三维结构的制备方法包括以下步骤:在细胞培养支持物上培养细胞,所述细胞培养载体包含其表面被温度响应性聚合物覆盖的基底,所述温度响应聚合物具有上或下临界溶解温度为0 -80℃,任选地通过常规方法分层培养细胞层,然后,(1)将培养溶液的温度调节至高于上临界溶解温度或低于临界溶解温度 ,进一步任选地(2)使培养的眼前段相关细胞片或三维结构与聚合物膜紧密接触,和(3)与聚合物膜一起分离片或三维结构。