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4 protocols using laminin b

1

Western Blot Analysis of Cellular Proteins

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Cells were lysed in an ice-cold lysis buffer containing 50 mM Tris-Cl, pH 7.5, 100 mM NaCl, 1 mM EDTA, 1% TritonX-100, 1 mM PMSF, 1 μg/ml leupeptin, and 1 μg/ml pepstain A. The protein concentration in the supernatant was determined using a BCA protein assay (Pierce, Rockford, IL, USA). Samples were subjected to 8-12% SDS-polyacrylamide gel electrophoresis, and the separated proteins were electrophoretically transferred to nitrocellulose membranes. Blots were incubated with the primary antibody against IRF1 (1: 1000, Santa Cruz Biotechnology), LC3B (1:1000, CST), Bnip3 (1:1000, CST), Tubulin (1:3000, Sigma), AIF (1: 1000, CST), coxIV (1: 1000, Calbiocam), Laminin B (1: 1000, Abcam). The membranes were then incubated with horseradish peroxidase-linked secondary anti-rabbit or anti-mouse antibodies (Bio-Rad).
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2

Western Blot Analysis of Cellular Proteins

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For Western Blot analysis, cells were plated in six-well plates at a density of 2.5 × 105, lysed using TRE buffer and then the whole cell extract was sonicated, resuspended, and boiled for 5 min in modified Laemli charge buffer (250 mM Tris-HCl (pH 75), glycerol 20%, SDS 10%, 1,4 M of mercaptoethanol and 1% blue bromophenol). Samples were transferred to a nitrocellulose membrane through wet transfer (Amersham Biosciences). Proteins were then visualized using the ECL system (Amersham Biosciences) after using specific antibodies for: HIF-1α (Bethyl), GST antibodies (Bethyl), Tubulin (Sigma-Aldrich), Actin (Sigma-Aldrich), Myc-tag (Cell Signaling Technology), Poly(ADP-ribose) (Trevigen), PARP-1 (Enzo), RPA (Cell Signaling), p-RPA (Bethyl), P53 (Santa Cruz), p-P53 (Millipore), H2AX (Millipore), p-H2AX (Millipore), Histone H1 (Santa Cruz), Laminin B (Abcam).
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3

Antibody Panel for Western Blot Analysis

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Antibodies used for Western blot analyses were as follows: actin (Sigma-Aldrich, no. A4700, clone AC-40), GFI1 (Santa Cruz Biotechnology, sc-376949, clone B9), GSE1 (Proteintech, no. 24947-I-AP), H3 (Abcam, no. 1791), H3K4me1 (Abcam, no. 8895), H3K4me2 (Abcam, no. 32356), H3K4me3 (Active Motif, no. 39159), HDAC1 (Abcam, no. 7028), HMG20B (Proteintech, no. 14582-1-AP), laminin B (Abcam, no. 16048), LSD1 (Cell Signaling Technology, no. 2139 and Abcam, no. 17721), RAR (Santa Cruz Biotechnology, sc-551), tubulin (Santa Cruz Biotechnology, sc-32356), vinculin (Sigma-Aldrich, no. V9131, clone hVIN-1), and ZMYM3 (Abcam, no. 106626).
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4

Western Blot Analysis of NK92 Cells

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For Western blot analysis, nuclear and cytoplasmic compartments of NK92 cells were extracted from 1–3 × 106 cells via the Fermentas ProteoJET Cytoplasmic and Nuclear Protein Extraction protocol (Fermentas, Burlington, ON). Nuclei were lysed using Nuclear Lysis Buffer (Fermentas, Burlington, ON) and both lysed nuclei and cytoplasm were resuspended in Laemmlis SDS-Sample Buffer (4×) (Boston Bioproducts, Boston, MA). Samples were boiled for 10 minutes and proteins separated by electrophoresis with a 12% agarose gel and transferred to a nitrocellulose membrane for blotting. Proteins were visualized with anti-NF-κB p65 (Abcam, Cambridge, MA), anti-cJun (Abcam, Cambridge, MA), anti-STAT4 (Santa Cruz, Santa Cruz, CA), anti-GR (Abcam, Cambridge, MA) and HRP conjugated goat anti-rabbit IgG secondary antibody (Millipore, Temecula, CA) and chemiluminescence reagent (ThermoScientific, Rockford, IL). Quality of nuclear and cytoplasmic compartment extraction was determined by Laminin B and GAPDH, respectively (Abcam, Cambridge, MA). Blot density was quantified using Image J software.
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