申请人:Nishino Taito
公开号:US20100266556A1
公开(公告)日:2010-10-21
An expansion agent for hematopoietic stem cells and/or hematopoietic progenitor cells useful for improvement in the efficiency of gene transfer into hematopoietic stem cells for gene therapy useful for treatment of various hematopoietic disorders is provided.
A method for expanding hematopoietic stem cells and/or hematopoietic progenitor cells, which comprises culturing hematopoietic stem cells and/or hematopoietic progenitor cells ex vivo in the presence of a compound represented by the formula (I) (wherein X, Y, X, Ar
1
, R
1
, R
2
, R
3
, R
4
, R
5
, R
6
and R
7
are defined in the description), a tautomer or pharmaceutically acceptable salt of the compound or a solvate thereof.