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Title:
METHOD FOR MANUFACTURING CILIARY MARGINAL ZONE-LIKE STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2015/087614
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing a cell aggregate containing a ciliary marginal zone-like structure, the method comprising a step for culturing a retinal tissue-containing cell aggregate, wherein the percentage of Chx10-positive cells present in the retinal tissue is 20% to 100%, in a serum-free medium or serum medium containing a Wnt signal pathway-affecting substance and a FGF signal pathway-inhibiting substance only in the period until cells expressing RPE65 gene appear, and then the obtained "cell aggregates in which RPE65 gene-expressing cells have not appeared" are cultured in a serum-free medium or serum medium that does not contain a Wnt signal pathway-affecting substance. The manufacturing method according to the present invention makes it possible to manufacture ciliary marginal zone-like structures with high efficiency.

Inventors:
KUWAHARA ATSUSHI (JP)
SASAI YOSHIKI 笹井 芳
Application Number:
PCT/JP2014/077602
Publication Date:
June 18, 2015
Filing Date:
October 16, 2014
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
RIKEN (JP)
International Classes:
C12N5/071; A61K35/44; A61L27/00; A61P27/02; A61P43/00
Domestic Patent References:
WO2013183774A12013-12-12
WO1998030679A11998-07-16
Other References:
F.KUBO ET AL.: "HAIRY1 ACTS AS A NODE DOWNSTREAM OF WNT SIGNALING TO MAINTAIN", DEVELOPMENT, vol. 136, RE, 2009, pages 1823 - 1833, XP055344393, DOI: TINAL STEM CELL-LIKE PROGENITOR CELLS IN THE CHICK
W.Z.STEPHENS ET AL.: "LOSS OF ADENOMATOUS POLYPOSIS COLI (APC) RESULTS IN AN", DEVELOPMENTAL DYNAMICS, vol. 239, no. 7, EX, 2010, pages 2066 - 2077, XP055344395, DOI: PANDED CILIARY MARGINAL ZONE IN THE ZEBRAFISH EYE
B.BHATIA ET AL.: "DISTRIBUTION OF MüLLER STEM CELLS WITHIN THE NEURAL RETINA:", EXPERIMENTAL EYE RESEARCH, vol. 89, EV, 2009, pages 373 - 382, XP026396015, DOI: IDENCE FOR THE EXISTENCE OF A CILIARY MARGIN-LIKE
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NAKANO, T ET AL., CELL STEM CELL, vol. 10, no. 6, 2012, pages 771 - 785
UENO, M ET AL., PNAS, vol. 103, no. 25, 2006, pages 9554 - 9559
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UENO, M. ET AL., PNAS, vol. 103, no. 25, 2006, pages 9554 - 9559
See also references of EP 3081637A4
Attorney, Agent or Firm:
TAKASHIMA, HAJIME (JP)
Takashima 1 (JP)
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