Membrane-Lipid Therapy in Operation: The HSP Co-Inducer BGP-15 Activates Stress Signal Transduction Pathways by Remodeling Plasma Membrane Rafts
Figure 6
Effect of BGP-15 treatment on heat-induced HSF1 acetylation in HEK293T cells and on in vitro SIRT1 activity.
A) HEK293T cells transiently co-transfected with mouse HSF1-FLAG and p300 were heat shocked for different lengths of time at 42°C or for 60 min at 42°C followed by 60 min recovery (R). After immunoprecipitation by FLAG, samples were probed for acetylated lysin by western blotting [n = 3, error bars represent standard error of the mean (SEM)]; B) Samples were or were not treated with 10 µM BGP-15 for 60 min before and during 60 min heat shock or 60 min recovery following heat shock (R) Acetylated HSF1 was determined as above. [n = 4, p<0.05, error bars represent standard error of the mean (SEM)]; C) In vitro activity of SIRT1 using activators, inhibitors and BGP-15 [n = 3, error bars represent standard error of the mean (SEM)].