Fig. 5. CK1δ and β-TRCP knockdown decreased anti-fibrosis effective of hucMSC-Ex.
a Expression of CK1δ and β-TRCP in hucMSC-Ex was determined by western blot and qRT-PCR. b Representative images of HE and Masson staining in the UUO model with hucMSC-Ex, shCK1δ-Ex, and shβ-TRCP-Ex. Bar = 100 μm. c Double immunofluorescent staining of YAP and α-SMA in the kidneys of the UUO model treated with hucMSC-Ex, shCK1δ-Ex, and shβ-TRCP-Ex. Bar = 50 μm. d Western blot analyses for CK1δ and β-TRCP in NRK-52E after hucMSC-Ex treatment. e The expression of CK1δ, β-TRCP, YAP, and α-SMA in UUO14d with hucMSC-Ex, shCK1δ-Ex, and shβ-TRCP-Ex treatment was detected by western blot. f A proposed hypothesis for hucMSC-Ex attenuated tubulointerstitial fibrosis through CK1δ and β-TRCP mediated YAP ubiquitination and degradation.