Journal: International Journal of Molecular Sciences
Article Title: EGCG, GCG, TFDG, or TSA Inhibiting Melanin Synthesis by Downregulating MC1R Expression
doi: 10.3390/ijms241311017
Figure Lengend Snippet: Effect of EGCG, GCG, TFDG, or TSA on expression of TYR, tyrosinase-related protein 1 (TRP1), and tyrosinase-related protein 2 (TRP2) mRNA and protein. B16F10 cells were pretreated with EGCG, GCG, TFDG, or TSA for 2 h and stimulated with α-MSH for 24 h in the presence of EGCG, GCG, TFDG, or TSA. The treatment group without α-MSH and a sample was referred to as CK1, and the treatment group with α-MSH but without a sample was referred to as CK2. ( a ) Cell lysates were prepared with an EASY spin Plus cell RNA rapid extraction kit. Total RNAs were subjected to qPCR analysis of TYR , TRP1, or TRP2 with β-actin as an internal control. Data are mean ± SD. ( b ) Protein extracts were prepared by lysing cells with radioimmunoprecipitation assay (RIPA) lysate containing protease inhibitors and phosphatase inhibitors. Total proteins were subjected to Western blot analysis of TYR, TRP1, or TRP2 with GAPDH as an internal control. Data are mean ± SEM; a,b,c,d,e,f,g different letters above the column indicate significant differences ( p < 0.05).
Article Snippet: Primary antibodies against TYR (TU343218), TRP1 (TD13325), TRP2 (TA5303), MITF (TU326886), p-MITF (Ser180, TA3027), and MC1R (TD4992) were purchased from Abmart (Shanghai, China).
Techniques: Expressing, Radio Immunoprecipitation, Western Blot