Figure 4.

Western blot analysis of key signaling pathways involved in metabolic processes. (a,b) The darker melanocyte cell lines (NHMp70 and NHMp111) were analyzed after 2 weeks of continuous treatment with β-HCH (10 μM). Images are representative of one experiment whereas densitometric analysis, as reported in the histograms, was done comparing at least three independent experiments. * p ≤ 0.05 and ** p ≤ 0.01 vs. untreated cells.