FIGURE 4.
D4 reduces microtubule stability in high activity PFC pyramidal neurons via a mechanism dependent on CaMKII and MAP2. A, immunoblots and quantification of free tubulin showing the effect of PD168077 treatment (40 μm, 10 min) on microtubule depolymerization in PFC cultures pretreated without or with bicuculline (Bic; 10 μm, 2 h). *, p < 0.001, ANOVA. B, immunoblots and quantification of free tubulin showing the effect of PD168077 on microtubule depolymerization in PFC cultures (bicuculline-pretreated) infected with GFP versus constitutively active CaMKII Sindbis virus, or treated with MAP2 antisense versus sense oligonucleotides (1 μm). Free tubulin was normalized to GFP-infected neurons in the absence of PD168077. *, p < 0.001, ANOVA.
