← USPTO Patent Grants

Methods for producing retinal tissue and retina-related cell

Grant US12582677B2 Kind: B2 Mar 24, 2026

Assignee

SUMITOMO CHEMICAL COMPANY, LIMITED

Inventors

Tokushige Nakano, Satoshi Ando, Yoshiki Sasai, Mototsugu Eiraku

Abstract

The invention provides a method for producing a retinal tissue by (1) subjecting pluripotent stem cells to floating culture in a serum-free medium containing a substance inhibiting the Wnt signal pathway to form an aggregate of pluripotent stem cells, (2) subjecting the aggregate to floating culture in a serum-free medium containing a basement membrane preparation, and then (3) subjecting the aggregate to floating culture in a serumcontaining medium. The invention also provides a method for producing an optic-cup-like structure, a method for producing a retinal pigment epithelium, and a method for producing a retinal layer-specific neural cell.

CPC Classifications

A61K 35/30 A61L 27/3633 A61L 27/3834 A61L 27/3895 A61L 2430/16 C12N 5/062 C12N 5/0621 C12N 2500/84 C12N 2500/90 C12N 2501/16 C12N 2501/415 C12N 2501/42 C12N 2506/02 C12N 2533/90 G01N 33/5058

Filing Date

2021-04-12

Application No.

17227497

Claims

12