No abstract

本総説は，日本薬学会第 127 年会シンポジウム S45 で 発表したものを中心に記述したものである． Stem cell-based therapy has received attention as a possible alternative to organ transplantation, owing to the ability of stem cells to repopulate and diŠerentiate at the engrafted site. We transplanted bone marrow-derived mesenchymal stem cells (BMSCs) into liver-injured rats to test the therapeutic eŠect. Rat bone marrow cells were cultured in the presence of hepatocyte growth factor (HGF). RT-PCR and immunocytochemical analysis indicated that the BMSCs expressed the albumin mRNA and the production of protein after cultivation with HGF for 2 weeks. The BMSCs appeared to diŠerentiate into hepatocyte-like cells in response to the culture with HGF. After labeling with a ‰uorescent marker, the BMSCs were transplanted into CCl 4 -injured rats by injection through the caudal vein. The liver was excised and blood samples were collected 4 weeks later. Engraftment of the transplanted BMSCs was seen with signiˆcant ‰uores-cence in the injured liver. Transplantation of the BMSCs into liver-injured rats restored their serum albumin level and suppressed transaminase activity and liverˆbrosis. Therefore, BMSCs were shown to have a therapeutic eŠect on liver injury. Recently, we have been trying to use mesenchymal stem cells isolated from dental papilla of discarded human wisdom teeth. Autologous transplantation of mesenchymal stem cells from bone marrow and dental papilla could be ethically and functionally promising for stem cell-based therapy.

Biochemistry Z 0250 Application of Mesenchymal Stem Cells to Liver Regenerative Medicine -[30 refs.]. -(YAGI*, K.; KOJIMA, M.; OYAGI, S.; IKEDA, E.; HIROSE, M.; ISODA, K.; KAWASE, M.; KONDOH, M.; OHGUSHI, H.; Yakugaku Zasshi 128 (2008) 1, 3-9; Grad. Sch. Pharm. Sci., Osaka Univ., Suita, Osaka 565, Japan; Japan., Abstr. Eng.) -Lindner 25-266