Effect of bone mesenchymal stem cell transplantation on accelerating the vascularization surrounding transplant pancreatic islet
10.3969/j.issn.1674-7445.2017.02.011
- VernacularTitle:骨髓间充质干细胞移植可促进移植胰岛周围新生血管形成
- Author:
Rui LI
1
;
Hongli DONG
;
Rubin LIU
;
Baolin LIU
Author Information
1. 中国医科大学附属人民医院肝胆外科
- Keywords:
Type 1 diabetes mellitus;
Pancreatic islet transplantation;
Bone marrow mesenchymal cell;
5-ethynyl-2'-deoxyuridine (EdU);
Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL);
Non-obese diabetic (NOD) mouse;
Proliferation;
Apoptosis
- From:
Organ Transplantation
2017;8(2):149-153,160
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate whether pancreatic islet transplantation in combination with bone mesenchymal stem cells (MSC) transplantation can promote the vascularization surrounding the transplant pancreatic islet.Methods The non-obese diabetic (NOD) mice were utilized as the recipients and randomly divided into pancreatic islet transplantation combined with MSC transplantation group (co-transplantation group,n=6),pancreatic islet transplantation group(n=6),MSC transplantation group(n=6) and sham transplantation group (n=3).The variation in blood glucose level and survival rate post-transplantation of NOD mice in each group was observed.The proliferation and apoptosis of the transplant pancreatic islet in the pancreatic islet transplantation group and co-transplantation group at 1,2 and 4 weeks after pancreatic islet transplantation were analyzed by 5-ethynyl-2'-deoxyufidine (EdU) and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL).The vascular density surrounding the transplanted pancreatic islet in the pancreatic islet transplantation group and co-transplantation group at postoperative 2,4 and 8 weeks were observed under light microscope and quantitatively analyzed by histochemical and immunohistochemical staining.Results Both MSC combined with pancreatic islet transplantation and pancreatic islet transplantation significantly improved the blood glucose level and enhanced the survival rate of NOD mouse models after transplantation.In addition,it could accelerate the regeneration of pancreatic islet cells and decrease cell apoptosis.MSC combined with pancreatic islet transplantation significantly enhanced the vascular density surrounding the transplant pancreatic islet compared with pancreatic islet transplantation alone.Conclusions MSC transplantation can accelerate the vascularization surrounding the transplant pancreatic islet,increase the blood supply and protect the function and activity of the transplant pancreatic islet.
