title: Adipose-derived mesenchymal stem cells ameliorate STZ-induced pancreas damage in type 1 diabetes.
abstract: OBJECTIVE
  To investigate the possibility of adipose-derived mesenchymal stem cells (ADSC) in the treatment of type 1 diabetes (T1D).
  
  
  METHODS
  ADSC were isolated from the adipotic tissue of abdomen in Sprague-Dawley rats (4-6 week-old,female) and expanded in vitro. Cells were then identified by testing their phenotypes through flow cytometry. Balb/c mice (8 week-old, male) were divided into 3 groups: T1D group, ADSC group and control group. Streptozocin (50 mg/kg·d) were injected intraperitoneally into mice of T1D group and ADSC group for 5 consecutive days to establish the T1D model. In ADSC group, ADSC were injected intravenously on day 3 of STZ injection. In control group, only PBS was injected. Fasting blood glucose (FGB) level was examined once a week. At the end of the 4th week, animals were killed. The pathological changes of islet were showed by histochemistry through hematoxylin-eosin staining (HE staining). β cell insulin expression was detected by quantum dots immunofluorescence histochemistry.
  
  
  RESULTS
  After ADSC administration, FGB levels decreased significantly from the second week. Whereas FGB levels in T1D group increased significantly and continuously during the experimental period. Moreover, ADSC effectively suppressed pancreatic islet damage induced by STZ and increased the expression of insulin protein in pancreatic β cells.
  
  
  CONCLUSIONS
  Intravenuously injected ADSC can prevent STZ induced β-cell destruction and decrease blood glucose level.
authors: Department of Pathophysiology and School of Basic Medical Sciences, Wuhan University, Wuhan, China.
authors: Yue-Ying
authors: YY
authors: Li
authors: Han-Han
authors: HH
authors: Liu
authors: Hong-Lei
authors: HL
authors: Chen
authors: Yin-Ping
authors: YP
authors: Li
mesh_terms: D000273:Adipose Tissue / Q000166:cytology*; D000818:Animals; D001786:Blood Glucose / Q000032:analysis; D002469:Cell Separation; D003922:Diabetes Mellitus, Type 1 / Q000139:chemically induced / Q000473:pathology* / Q000601:surgery*; D005260:Female; D050417:Insulin-Secreting Cells / Q000473:pathology; D008297:Male; D045164:Mesenchymal Stem Cell Transplantation; D059630:Mesenchymal Stem Cells / Q000166:cytology*; D051379:Mice; D008807:Mice, Inbred BALB C; D010179:Pancreas / Q000473:pathology*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013311:Streptozocin
chemical_list: D001786:Blood Glucose; D013311:Streptozocin