Figure 6.
Overexpression of SIRT1 facilitates neurite outgrowth whereas overexpression of GCN5 retards neurite outgrowth in cultured hippocampal neurons. (a) Hippocampal neurons at DIV3 were transfected with either GFP-tagged GCN5 WT, GCN5 E575Q or SIRT1 WT along with DsRed vector. Fluorescent images were obtained with an LSM700 confocal microscope. The scale bar represents 50 μm. Confocal fluorescent images of (b) total neurite length, (c) the longest neurite length, (d) soma size and (e) the number of primary neurites were analyzed using Image-J software. The bars represent the mean ± S.D. of 35–40 neurons from at least 5 randomly selected areas. ***p < 0.001; **p < 0.01; ns, not significant.