Journal: The Journal of Neuroscience
Article Title: Loss of Cyclin-Dependent Kinase 5 from Parvalbumin Interneurons Leads to Hyperinhibition, Decreased Anxiety, and Memory Impairment
doi: 10.1523/JNEUROSCI.0969-14.2015
Figure Lengend Snippet: Genetic ablation of Cdk5 specifically in PV interneurons. A, B, Immunoreactivity for PV and Cdk5 in the motor cortex in 3.5-month-old fCdk5 (control) and PVCre;fCdk5 (mutant) littermate mice. The expression of Cdk5 (green) is present in all PV-positive (red) cells (arrows) in control mice (A). The complete ablation of Cdk5 is observed in PV interneurons of the PVCre;fCdk5 mice (B). Scale bars, 15 μm. C, D, Immunoreactivity for PV interneurons in different brain areas and layers in the cortex in control and PVCre;fCdk5 mice. C, PV interneurons (red) in different layers of the motor cortex in control and PVCre;fCdk5 mice, with Cux I (green) immunoreactivity labeling cortical layers II–IV. Scale bars, 100 μm. D, Bar graphs represent the relative numbers of PV interneurons in the cingulate cortex, hippocampus, and different layers of the motor cortex in 3.5-month-old control and PVCre;fCdk5 littermate mice. E, Representative Western blot and related quantification of Cdk5 protein in control and PVCre;fCdk5 (red) brains. Black, Control mice; red, PVCre;fCdk5 mice; ns, not significant. p > 0.05, error bars indicate ±SEM.
Article Snippet: The following primary antibodies were used: PV-positive interneurons were identified with anti-PV rabbit polyclonal PV-25 antibody at 1:2000 [catalog #PV 25; Resource Research Identifier (RRID) AB10000344; Swant] and mouse monoclonal PV-235 antibody at 1:1000 (catalog #PV 235; RRID AB10000343; Swant); rabbit polyclonal antibody against Cux I at 1:200 (M 22; catalog #sc-13024; RRID AB2261231; Santa Cruz Biotechnology) was used as a cortical layer marker; and Cdk5 immunoreactivity was identified with C8 rabbit polyclonal antibody against Cdk5 at 1:100 (catalog #sc-173; RRID AB631224 , Santa Cruz Biotechnology).
Techniques: Mutagenesis, Expressing, Labeling, Western Blot