SCD knockout inhibited PEF transdifferentiation into mature adipocytes. (A) SCD+/+ and SCD-/- were differentiated into adipocytes in vitro. Cells were subjected to oil red O staining after differentiation. Scale bar, 100 μm. (B) Western blot analysis of SCD in nondifferentiated and differentiated SCD+/+ and SCD-/- cells. TUBULIN was used as the loading control. Notably, SCD was undetectable in differentiated SCD-/- cells. (C) The expression levels of the genes related to lipid synthesis, in both the SCD+/+ and SCD-/- cells. Notably, all of these genes were significantly lower in the SCD-/- cells (n = 3/group). (D,E) TG (n = 7/group) and NEFA (n = 6/group) content levels in the SCD+/+ and SCD-/- cells. (F) The expression levels of the genes related to fatty acid β-oxidation in both the SCD+/+ and SCD-/- cells (n = 3/group); * p < 0.05, ** p < 0.01 and *** p < 0.001.