公开(公告)号：EP4446346A1

公开(公告)日：2024-10-16

申请号：EP22904306.2

申请日：2022-12-08

申请人： The University of Tokyo ,  Asahi Kasei Kabushiki Kaisha

发明人： HARA, Yuichi ,  HARANO, Kodai ,  SANO, Ayae ,  ITO, Taichi ,  OKI, Yuichiro ,  INAGAKI, Natsuko

IPC分类号： C07K17/12 ,  C08J9/28 ,  C12N5/0789

摘要： Provided are: cellulose porous particles which have large surface areas on which cells can be attached, and on which cells can be adhered easily, and which rarely undergo the detachment of cells when the cells are cultured at a high density; and a microcarrier for culture use, which comprises the cellulose porous particles. The cellulose porous particles according to the present invention are composed of cellulose, in which the cellulose constituting the cellulose porous particles is modified by a cationic substituent and the cellulose constituting the cellulose porous particles has a polypeptide bound thereto.