3D reconstitution of nerve-blood vessel networks using skeletal muscle-derived multipotent stem cell sheet pellets

Autor: Nobuyuki Nakajima, Tetsuro Tamaki, Akihiro Sakai, Yoshiyasu Uchiyama, Hiroyuki Hashimoto, Kosuke Saito, Shuichi Soeda, Nahoko Fukunishi, Toshiro Terachi, Maki Masuda, Joji Mochida
Rok vydání: 2013
Předmět:
Zdroj: Regenerative medicine. 8(4)
ISSN: 1746-076X
Popis: Aim: To cover the large tissue deficits associated with significant loss of function following surgery, a 3D gel-patch-like nerve–vascular reconstitution system was developed using the skeletal muscle-derived multipotent stem cell (Sk-MSC) sheet pellet. Materials & methods: The Sk-MSC sheet pellet was prepared from GFP transgenic mice by the collagenase extraction and 7 days expansion cell culture, and transplanted into a severe muscle damage model with large disruptions to muscle fibers, blood vessels and peripheral nerves. Results: At 4 weeks after transplantation, engrafted cells contributed to nerve–vascular regeneration associated with cellular differentiation into Schwann cells, perineurial/endoneurial cells, vascular endothelial cells and pericytes. However, skeletal myogenic differentiation was scarcely observed. Paracrine effects regarding donor cells/tissues could also be expected, because of the active expression of neurogenic and vasculogenic factor mRNAs in the sheet pellet. Conclusion: These results indicate that the vigorous skeletal myogenic potential of Sk-MSCs was clearly reduced in the sheet pellet preparation and this method may be a useful adjuvant for nerve–vascular regeneration in various tissue engineering applications.
Databáze: OpenAIRE