Generation of myogenic stem cells from iPS cells via blastocyst complementation.
Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity Start-up
Date (from‐to) : 2016/08 -2018/03
Author : Ito Hikaru; Asakura Atsushi; Asakura Yoko
One attractive therapy is myogenic stem cell transplantation to provide dystrophin in Duchenne Muscular Dystrophy (DMD) patients. Recent work has reported the induced pluripotent stem cell (iPSC)-derived myogenic stem cell transplantation for therapeutic strategy for DMD. However, there is a limitation in this strategy, especially in low differentiation efficiency and poor reproducibility of iPSCs-derived myogenic stem cells. Therefore, in a blastocyst complementation method, the regeneration of an organ can be achieved by utilizing the defect in an organ which can be complemented by injecting patient-derived iPSCs into a non-human blastocyst.
In this study, we injected GFP (+) mouse iPSCs into skeletal muscle-less mouse blastocysts. iPSC-derived cells highly contributed to limb muscle of chimera. We also performed intramuscular injection of myogenic stem cells isolated from chimeric mice into mdx mice, and detected GFP (+) muscle fibers which also expressed donor-derived dystrophin.