Protection of mesenchymal stem cells on acute kidney injury.
The aim of the present study was to determine the protection of allogeneic bone marrow mesenchymal stem cells (BMSCs) on an ischaemia/reperfusion (I/R)‑induced acute kidney injury (AKI) rat model and to investigate the underlying mechanisms. The BMSCs were isolated and cultured from adult Sprague‑Dawley (SD) rats and the I/R‑induced AKI model was established by bilateral clamping of renal pedicles for 60 min. Following successfully establishing the AKI model, 1x106 BMSCs were administered by intrarenal injection. All animals were randomly divided into four groups (n=10 in each): 1 (sham control), 2 (I/R), 3 (I/R+culture medium) and 4 (I/R+BMSCs). Serum levels of creatinine (Cr) and blood urea nitrogen (BUN) were measured in all four groups at 24 and 72 h. Three days post‑surgery, the level of inflammatory factors, including interleukin‑6 (IL‑6), tumour necrosis factor‑α (TNF‑α) and vascular endothelial growth factor (VEGF) in the kidney was analysed by quantitative polymerase chain reaction. Three days following surgery, mRNA expression levels of IL‑6 and TNF‑α were significantly lower, however, the expression level of VEGF was significantly higher in group 4 compared with groups 2 and 3 (P<0.05). By contrast, the immunofluorescence results showed that the injected BMSCs differentiated into vascular endothelial cells. In conclusion, the present study identified that intrarenal administration of BMSCs improved I/R‑induced AKI through the anti‑inflammatory effect and a paracrine mechanism and therefore, may be hypothesised for the use in clinical trials.
Clinical Molecular Biology Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China.
Jing-Jie
JJ
Zhao
Jun-Li
JL
Liu
Ling
L
Liu
Hong-Ying
HY
Jia
D058186:Acute Kidney Injury / Q000209:etiology / Q000473:pathology / Q000601:surgery*; D000818:Animals; D001806:Blood Urea Nitrogen; D001854:Bone Marrow Cells / Q000166:cytology; D002478:Cells, Cultured; D003404:Creatinine / Q000097:blood; D004195:Disease Models, Animal; D015850:Interleukin-6 / Q000235:genetics / Q000378:metabolism; D008297:Male; D045164:Mesenchymal Stem Cell Transplantation; D059630:Mesenchymal Stem Cells / Q000166:cytology*; D012333:RNA, Messenger / Q000378:metabolism; D051381:Rats; D017207:Rats, Sprague-Dawley; D015427:Reperfusion Injury / Q000150:complications / Q000473:pathology; D014184:Transplantation, Homologous; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics / Q000378:metabolism; D042461:Vascular Endothelial Growth Factor A / Q000235:genetics / Q000378:metabolism
D015850:Interleukin-6; D012333:RNA, Messenger; D014409:Tumor Necrosis Factor-alpha; D042461:Vascular Endothelial Growth Factor A; D003404:Creatinine