phospho pkc isoforms  (Cell Signaling Technology Inc)

Journal: Journal of neurophysiology

Article Title: Activity of protein kinase C controls the efficacy of cannabinoid receptor type 1 in the medial prefrontal cortex after neuropathic pain

doi: 10.1152/jn.00379.2025

Figure Lengend Snippet: PKC activity and phosphor-protein expression in the mPFC are unchanged after SNI. ( A ) PKC enzymatic activity from mPFC homogenates 35 days after SNI or sham surgery. No difference was detected between groups. ( B ) Representative Western blots showing phospho-PKC pan, α, β, and δ isoforms and GAPDH, and ( C, D, E ) summary quantification normalized to GAPDH (mean ± SEM; n = 8 for ELISA, n = 7 for Western blot; unpaired t-test, ns: not significant).

Article Snippet: Proteins were transferred to PVDF membranes, blocked in 5% BSA/TBST, and incubated overnight at 4 °C with antibodies to phospho-PKC isoforms (α, β, δ; 1:1,000, Cell Signaling Technology) and GAPDH (1:2,000).

Techniques: Activity Assay, Expressing, Western Blot, Enzyme-linked Immunosorbent Assay

Journal: International Journal of Molecular Sciences

Article Title: Protein Kinase C Activation Drives a Differentiation Program in an Oligodendroglial Precursor Model through the Modulation of Specific Biological Networks

doi: 10.3390/ijms22105245

Figure Lengend Snippet: Phorbol 12-Myristate 13-Acetate (PMA) treatment induces phospho-protein kinase C (PKC) activation and MO3.13 differentiation. ( A ) Western blot analysis showing the activation rate of PKC substrates in MO3.13 cells after 100 nM PMA short-term treatment (5 min and 15 min). An anti-phospho-PKC substrate motif ((R/K)XpSX(R/K)) antibody was used. This antibody specifically detects endogenous levels of cellular proteins only when phosphorylated at Ser residues (S) surrounded by Arg (R) or Lys (K) at the ⁻2 and ⁺2 positions. p38 was used as a loading control. ( B ) Western blot analysis exhibiting the activation degree of PKC substrates after 96 h of PMA treatment compared to the control (CTR). p38 was used as a loading control. ( C ) Western blot analysis reporting the activation rate of AKT substrates, MARCKS and ERK proteins at 1 h of PMA treatment. ( D ) Western blot analysis reporting the activation of PKC substrates in MO3.13 cells, after treatment with PMA and Ro 31-8220 (1 μM) used alone and in combination for 1 h. p38 was used as a loading control. ( E ) Representative images of MO3.13 cells cultured in a normal condition medium (left) or treated with 100 nM PMA (right) for 96 h. Images were acquired using an inverted wide-field microscope (Olympus IX51). Scale bar 200 μm. ( F ) MO3.13 cell proliferation assessed by MTT test for 24 h, 48 h, 72 h and 96 h. Data were represented as the number of viable cells compared to the CTR, expressed as mean ± standard deviation (SD). **** p -value < 0.0001 by t -test. ( G ) Western blot analysis was performed on the whole-cell lysate using an anti-p27 antibody in MO3.13 cells treated with PMA for 48 h and 96 h. p38 was used as a loading control. ( H ) Western blot analyses using anti-β-tubulin3, anti-MBP, anti-GFAP, anti-E-cadherin, anti-Myc and anti-β-catenin antibodies were performed on the whole protein extract of MO3.13, CTR and treated conditions. p38 was used as a loading control. Western blot experiments were performed in triplicates.

Article Snippet: Membranes were probed with the following antibodies (1:1000 dilution): phospho-PKC substrate motif ((R/K)XPSX(R/K)) MultiMabTM (#6967), MARCKS (#5607), Phospho-MARCKS (Ser167/170) (8722), p38 (#9212), c-Myc (#13987), myelin basic protein (#78896), β-catenin (#8480), phospho-ERK1/2 (#4370), ERK1/2 (#4695), phospho-AKT substrate (RXXS*/T*) (#9614S), PKCα (#9960), SQSTM1/p62 (#39749) were from Cell Signaling.

Techniques: Activation Assay, Western Blot, Control, Cell Culture, Microscopy, Standard Deviation

Journal: International Journal of Molecular Sciences

Article Title: Protein Kinase C Activation Drives a Differentiation Program in an Oligodendroglial Precursor Model through the Modulation of Specific Biological Networks

doi: 10.3390/ijms22105245

Figure Lengend Snippet: Signaling pathways and transcriptional factors modulated by PKC activation. ( A ) “Regulation of actin cytoskeleton” KEGG pathway is visualized. Red stars indicated differentially expressed proteins involved in the pathway and identified by MS/MS analysis, or Western blotting, after PMA treatment. ( B ) Expression profile of cofilin and phospho-cofilin was detected by Western blot at 0 h, 24 h, 48 h, 72 h and 96 h after treatment with PMA. Histogram represents the expression ratio of phospho-cofilin of the treated condition versus CTR sample. *** p -value < 0.001. ( C ) Phase-contrast images of MO3.13 cells cultured in a normal condition medium or treated with 100 nM PMA and 10 μM Y-27632, alone or in combination, for 96 h. Scale bar 200 μm. ( D ) Western blot analysis showing the activation level of PKC substrates in control and treated conditions after 1 h of stimulation. PMA at 100 nM and Y-27632 at 10 μM were used alone or in combination. The detection was performed through a phospho-PKC substrate motif ((R/K)XpSX(R/K)) antibody. The Ponceau S stained membrane is shown to verify the protein loading. ( E ) Western blot analysis showing the expression levels of cofilin and phospho-cofilin after treatment with PMA and Y-27632, used alone or in combination, for 96 h. Histogram represents the expression ratio of phospho-cofilin in the treated conditions versus the CTR sample. *** p -value < 0.001. ( F ) Hierarchical clustering based on Euclidean distance showing the separation between the CTR cells and those treated with PMA and Y-27632, alone and in combination. Profile plots of selected protein groups are shown, displaying distinct behavior concerning treatment.

Article Snippet: Membranes were probed with the following antibodies (1:1000 dilution): phospho-PKC substrate motif ((R/K)XPSX(R/K)) MultiMabTM (#6967), MARCKS (#5607), Phospho-MARCKS (Ser167/170) (8722), p38 (#9212), c-Myc (#13987), myelin basic protein (#78896), β-catenin (#8480), phospho-ERK1/2 (#4370), ERK1/2 (#4695), phospho-AKT substrate (RXXS*/T*) (#9614S), PKCα (#9960), SQSTM1/p62 (#39749) were from Cell Signaling.

Techniques: Protein-Protein interactions, Activation Assay, Tandem Mass Spectroscopy, Western Blot, Expressing, Cell Culture, Control, Staining, Membrane