Anti-AKT (Cell Signaling Technology, Danvers, MA, USA), anti-p-AKT (Ser473) (Cell Signaling Technology, Danvers, MA, USA), anti-p-ERK1/2 (Cell Signaling Technology, Danvers, MA, USA), anti-ERK1/2 (Cell Signaling Technology, Danvers, MA, USA), anti-p-mTOR (Cell Signaling Technology, Danvers, MA, USA), anti-mTOR (Cell Signaling Technology, Danvers, MA, USA), anti-E-cad (Cell Signaling Technology, Danvers, MA, USA), anti-Cadh16 (Proteintech, Chicago, Illinois, USA), anti-snail1(Cell Signaling Technology:3879s), anti-α-SMA (Boster, Wuhan, Hubei, China), anti-AQP1 (Proteintech, Chicago, Illinois, USA), anti-ATP (Proteintech, Chicago, Illinois, USA), anti-TGF-β1 (Proteintech, Chicago, Illinois, USA), anti-GAPDH (Proteintech, Chicago, Illinois, USA), anti-TRPC6 (Alomone, Jerusalem, Israel), anti-TRPC3 (Alomone:ACC-016), anti-mouse IgG (KeRui, Wuhan, Hubei, China), anti-rabbit IgG antibody (KeRui, Wuhan, Hubei, China), recombinant human TGF-β1 (Cell Signaling Technology, Danvers, MA, USA), HYP9 (MedChem, Shanghai, China), and type-2 collagenase (Worthington Biochemical Corporation, Lakewood, Colorado, USA).
DMEM/f12 and FBS were purchased from Invitrogen (Chicago, California, USA). The whole sagittal section of the kidney was scanned by Biossci Biotechnology Company (Wuhan, Hubei, China).