Figure 2. SIRT1 mediates AMPK-induced PGC-1α deacetylation.
(A and C) C2C12 myocytes were infected with adenoviruses encoding GFP, PGC-1α, and either control or SIRT1 shRNAs. After 8hrs (A) or 1hr (C) of AICAR treatment, PGC-1α acetylation and AMPK phosphorylation were analyzed (D-E) SIRT1+/+ and SIRT1−/− MEFs were infected with GFP and FLAG-HA-PGC-1α and treated for 8hrs (D) or 1hr (E) with AICAR to test PGC-1α acetylation and AMPK phosphorylation.