Research Article

Elafibranor Inhibits Chronic Kidney Disease Progression in NASH Mice

Table 3

In vitro effects of elafibranor in HFD-sera- or NC-sera-pretreated cultured podocytes/HK-2 monolayer.

Cultured podocytes monolayerNC-seraHFD-seraHFD-sera+elafHFD-sera+elaf+siSITR1HFD-sera+rSITR1HFD-sera+rSITR1+BAF

SIRT1activity in (fold/buffer group) cell lysates5.5 ± 0.310.44 ± 0.013.3 ± 0.061.1 ± 0.023.1 ± 0.81.3 ± 0.04
8-isoproatne (pg/mL) level in cell supernatant462 ± 14900 ± 5484 ± 18844 ± 10517 ± 21770 ± 11
autophagy flux index in cell supernatant5.3 ± 0.21.5 ± 0.084.5 ± 0.52.1 ± 0.34.2 ± 0.42.3 ± 0.04
caspase 3/7 activity in cell supernatant (RU)3 ± 0.089 ± 0.184.4 ± 0.066.6 ± 0.45 ± 0.67.5 ± 0.4
Concentration of FITC-alb in cell lysates99 ± 2244 ± 277 ± 358 ± 271 ± 852 ± 5

Cultured HK-2 cells monolayerNC-seraHFD-seraHFD-sera+elafHFD-sera+elaf+siSITR1HFD-sera+rSITR1HFD-sera+rSITR1+BAF

SIRT1activity in (fold/buffer group) cell lysates5 ± 0.280.4 ± 0.023 ± 0.041 ± 0.042.8 ± 0.71.2 ± 0.03
8-isoproatne (pg/mL) level in cell supernatant420 ± 19820 ± 4.5440 ± 22650 ± 42480 ± 25700 ± 16
autophagy flux index in cell supernatant4.8 ± 0.31.4 ± 0.074.1 ± 0.31.9 ± 0.23.8 ± 0.62.1 ± 0.05
caspase 3/7 activity in cell supernatant (RU)2 ± 0.068 ± 0.134 ± 0.056 ± 0.344.8 ± 0.76.9 ± 0.7
Concentration of FITC-alb in cell lysates82 ± 1740 ± 370 ± 252 ± 365 ± 1049 ± 8

Data were showed as mean ± SD; HFD-sera/HFD-sera+elaf/HFD-sera+elaf+siSIRT1/HFD-sera+rSIRT1, HFD-sera+rSIRT1+BAF: HFD-sera-pretreated cells coincubated with vehicle, elaf+siSIRT1, rSIRT1, rSIRT1+BAF in HFD-sera-pretreated group; SIRT1 activity of buffer-group was assigned as 1; RU: relative light unit; autophagy flux index was calculated by the formula [autophagy flux index=LC3-II (indicator of autophagosomes formation) expression levels with Bafilomycin A1 (100ng/mL)/LC3-II expression levels without Bafilomycin-A1]. LC3-II expression was normalized by its GADPH expression level. Concentration of FITC-alb (higher value indicated better endocytosis/reuptake of albumin by podocytes/HK-2) in cell lysates;p<0.05 vs. vehicle-group; p<0.05, 0.01 vs. elaf- or rSIRT1 group; p<0.05 vs. NC-sera group.