Invention Grant

  • Patent Title: Anterior ocular segment related cell sheets, three-dimensional structures, and processes for producing the same
  • Patent Title (中): 前眼部相关细胞片,三维结构及其制备方法
  • Application No.: US10544542
    Application Date: 2003-02-06
  • Publication No.: US08642338B2
    Publication Date: 2014-02-04
  • Inventor: Masayuki YamatoTeruo Okano
  • Applicant: Masayuki YamatoTeruo Okano
  • Applicant Address: JP Tokyo
  • Assignee: Cellseed Inc.
  • Current Assignee: Cellseed Inc.
  • Current Assignee Address: JP Tokyo
  • Agency: Nixon & Vanderhye PC
  • International Application: PCT/JP03/01248 WO 20030206
  • International Announcement: WO2004/070023 WO 20040819
  • Main IPC: C12N11/08
  • IPC: C12N11/08 C12N5/00 C12N5/02
Anterior ocular segment related cell sheets, three-dimensional structures, and processes for producing the same
Abstract:
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.
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