Pancreatic duodenal homeobox-1 advances transdiffenentiation of bone marrow mesenchymal stem cells into insulin-producing cells in vitro
- VernacularTitle:胰腺十二指肠同源框-1基因促进大鼠骨髓间充质干细胞体外横向分化为胰岛素分泌细胞
- Author:
Jiping SUN
- Publication Type:Journal Article
- Keywords:
Pancreatic duodenal homeobox-1;
Bone marrow mesenchymal stem cells;
Islet of langerhans;
Diabetes
- From:
Journal of Medical Postgraduates
2003;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the possible effects of Pancreatic duodenal homeobox-1((Pdx-1))expression in transdifferentiation of bone marrow mesenchymal stem cells(MSC) in vitro. Methods: The eukaryotic expression vector containing Pdx-1 was constructed.After such vector was transfected into MSC using Superfect,G418 was used to select the positive cells.Then both(Pdx-1~(+)MSC)and((Pdx-1~-MSC)) were induced to transdifferentiate in vitro.The expressions of insulin were analyzed by immunohistochemistry staining. Results: Restricted enzyme analysis and sequencing showed that interest gene segment was consistent with that in Gen Bank,Recombination vector was effectively transformed into MSC demonstrated by fluorescence microscope;insulin-producing cells from Pdx-1~(+)MSC were higher than that from Pdx-1~(-)MSC[(28.23?2.56)% and(7.08?2.69)%,respectively]. Conclusion:Pdx-1 can promote adult rat MSC to transdifferentiate into insulin-producing cells in vitro,and this approach might lead to a widespread cell replacement therapy for type I diabetes.
