Role of TGF-β1/ILK/FSP1 signaling pathway in cyclosporin A-induced epithelialmesenchymal transition in cultured renal tubular epithelial cells / 南方医科大学学报
Journal of Southern Medical University
;
(12): 804-809, 2019.
Article
in Chinese
| WPRIM
| ID: wpr-773529
ABSTRACT
OBJECTIVE@#To explore the role of transforming growth factor-β1/integrin-linked kinase/fibroblast-specific protein 1 (TGF- β1/ILK/FSP1) signaling pathway in cyclosporine A (CsA)-induced renal tubular epithelial cell transdifferentiation.@*METHODS@#Rat renal tubular epithelial NRK-52E cells were induced with 1 mg/L CsA, treated with TGF-β1 inhibitor (SB431542, 10 μmol/L), or transfected with the ILK-RNAi lentiviral expression vector (ILKshRNA) or a negative control vector before CsA induction. The expressions of TGF-β1, ILK and FSP-1 mRNAs and proteins in the cells were detected using real-time PCR and Western blotting. The positive cells for α-SMA expression were detected by immunohistochemistry.@*RESULTS@#Compared with the blank control cells, the cells treated with CsA showed significantly increased levels of TGF-β1, ILK and FSP-1 mRNAs and proteins ( < 0.05). The expressions of TGF-β1, ILK and FSP-1 were significantly lower in TGF-β1 inhibitor group than in CsA group ( < 0.05). The levels of ILK and FSP-1 were significantly decreased after shRNA-mediated ILK silencing ( < 0.05). The number of positive cells for -SMA was significantly lower in cells treated with SB431542 and in cells with ILK silencing than in the cells treated with CsA alone ( < 0.05).@*CONCLUSIONS@#The activation of TGF-β1/ILK/FSP-1 signaling pathway is an important mechanism for CsA-induced transdifferentiation in rat renal tubular epithelial cells. ILK participates in CsA-induced epithelialmesenchymal transition of renal tubular epithelial cells.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Calcium-Binding Proteins
/
Signal Transduction
/
Cells, Cultured
/
Cyclosporine
/
Protein Serine-Threonine Kinases
/
Epithelial Cells
/
Transforming Growth Factor beta1
/
Epithelial-Mesenchymal Transition
Limits:
Animals
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2019
Type:
Article
Similar
MEDLINE
...
LILACS
LIS