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PP1 and PP2A inhibitors restore α-SMA expression and ERK1/2 phosphorylation downregulated by VPA. After serum starvation, pericytes were pretreated with the PP1 and PP2A inhibitors T (Tautomycin) and C (Calyculin A) for 1 h followed by treatment with Ang II and VPA. Western blot was performed with α-SMA (A), pERK1/2, tERK1/2 (B), and β-actin antibodies.
