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6 protocols using anti β actin 13e5 rabbit mab

1

Western Blot Antibodies and Inhibitors

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The following antibodies were used in this study: anti‐Pim1 (Abcam, Cambridge, UK); anti‐β‐actin (13E5) rabbit mAb (4970; Cell Signaling Technology, Danvers, MA, USA); anti‐AMPKα (D63G4) rabbit mAb (5832S; Cell Signaling Technology); anti‐phospho‐AMPKα (Thr172) (40H9) rabbit mAb (2535S; Cell Signaling Technology); anti‐LDHA (C4B5) rabbit mAb (3582; Cell Signaling Technology); and anti‐HK2 (C64G5) rabbit mAb (2867; Cell Signaling Technology).
Pim1 siRNAs (si1: sense 5′‐GGAACAACAUUUACAACUCdTdT‐3′, antisense 5′‐GAGUUGUAAAUGUUGUUCCdTdT‐3′; si2: sense 5′‐GAUAUGGUGUGUGGAGAUA‐3′, antisense 5′‐ UAU‐CUCCACACACCAUAUC‐3′), and a negative control siRNA (Scramble: sense 5′‐CUUACGCUGAGUACUUCGAdTdT‐3′, antisense 5′‐ UCGAAGUACUCAGCGUAAGdTdT‐3′) were purchased from GenePharma (Shanghai, China). 2‐Deoxyglucose (2‐DG, Sigma Chemical Co., St Louis, MO, USA), A769662 and Compound C (Selleck Chemicals, Houston, TX, USA) were added to the medium as indicated.
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2

Quantitative Western Blot Analysis

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A Western blotting analysis was performed on 30 μg of whole-cell protein from liver tissues. After non-specific binding was blocked, the primary antibodies, anti-HO-1 (ab82585, Abcam, Cambridge, UK) and anti-β-actin (13E5) rabbit mAb (Cell Signaling Technology Inc., Danvers, MA, USA), were incubated. Thereafter, the proteins were visualized and analyzed using β-actin as the protein loading control.
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3

Western Blot Analysis of β-Globin

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The accumulation of the β-globin protein (16 kDa) was assessed by western blotting. For whole-cell extract preparation, the cells were lysed through three freeze-thaw cycles in dry ice and quantified by BCA assay (Pierce BCA Protein Assay Kit; Thermo Fisher Scientific). For each sample, 20 μg of ErPCs extracts was loaded on a 16% acrylamide SDS-PAGE gel (40% acrylamide/bis solution; Bio-Rad). After separation by an electrophoretic run, the proteins were transferred onto nitrocellulose paper and incubated with different primary antibodies: anti-β-globin chain antibody (monoclonal antibody [mAb], sc-21757; Santa Cruz), anti-α-globin chain antibody (mAb, TA307691; OriGene), and anti-β-actin (13E5 rabbit mAb; Cell Signaling Technology), a constitutive protein (45 kDa) expressed similarly in all treated and untreated samples, used as housekeeping to normalize the quantification of the target protein.
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4

Immunoblotting and Immunofluorescence Assay

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The following Abs were used: mouse anti-NQO1 monoclonal Ab (mAb) (39–3700, Invitrogen), rabbit anti-LC3 polyclonal Ab (pAb, PM036, MBL International Corp.), anti- β-Actin (13E5) rabbit mAb (4970, Cell Signaling), peroxidase-conjugated- goat anti-mouse IgG(H + L) and mouse anti-rabbit IgG(H + L) (115-035-062, 211-035-109; Jackson ImmunoResearch Labs) and alexa fluor-488 goat anti-rabbit IgG (A11008, Invitrogen). Dicoumarol (287897) was from Calbiochem and rapamycin (tlrl-rap) from Invitrogen. ES936 (4022) was purchased from Tocris Bioscience. Nitazoxanide (NTZ, 2-acetyloxy-N-(5-nitro-2-thiazolyl)benzamide) and its active metabolite tizoxanide (TIZ) were kindly provided by Eli Lilly. Dimethyl sulfoxide (DMSO; W387509) and N,N-Dimethylformamide (DMF; 227056), used to dilute small molecule inhibitors and used in cell culture (0.05%) as solvent controls, were purchased from Sigma-Aldrich. All drugs were aliquoted and kept at −80 °C until use. Bafilomycin A1, (B1793) was obtained from Sigma-Aldrich. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT; M-6494) was purchased from Life Technologies, Thermo Fisher Scientific.
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5

Western Blot Analysis of Immune Signaling Proteins

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The cells were washed with PBS and scraped using a cell scraper. The cells were transferred to 1.5 mL microtubes and centrifuged at 5000 g for 3 min. Cells were lysed in 100 μL of lysis buffer (50 mM Tris–HCl, pH 6.8, 2% SDS, 6% 2‐mercaptoethanol, 10% glycerol, 0.0125% bromothymol blue) and heated at 95°C for 5 min. Whole cell extracts were subjected to electrophoresis on 4%–20% Mini PROTEAN TGX gels (Bio‐Rad, 4561095) and then transferred to Trans‐Blot Turbo Transfer Pack membranes (0.2 μM PVDF, BIO‐RAD, 1704156). Membranes were blocked with 5% BSA in Tris‐Buffered Saline‐Tween, TBST 0.001% azide for 60 min and probed with primary anti‐STING (D2P2F) rabbit mAb (#13647, Cell Signaling Technology), anti‐cGAS (D1D3G) rabbit mAb (#15102, Cell Signaling Technology), anti‐EGF‐Receptor (D38B1) XP rabbit mAb (#4267), and anti‐β‐actin (13E5) rabbit mAb (#4970, Cell Signaling Technology). The membranes were then washed with TBST and incubated with a secondary donkey anti‐rabbit immunoglobulin antibody conjugated to horseradish peroxidase (HRP) (Abcam, ab205722) for 1 h. Proteins were detected using a chemiluminescence detection system (ECL Prime Western Blot Detection System; GE Healthcare, RPN2232) according to the manufacturer's instructions.
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6

PSMA Expression Analysis in LNCaP Tumors

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PSMA expression by LNCaP tumors used in imaging studies was assessed by immunoblotting. Tumor lysates were loaded on 10% Mini-PROTEAN TGX precast gels and fractionated by SDS-PAGE. Protein extracts were electro-transferred to PVDF membrane. The PVDF membrane was incubated with PSMA (E-18) goat anti-PSMA antibody (sc-10269; Santa Cruz Biotechnology) in a 1:250 dilution, and anti-β-Actin (13E5) rabbit mAb (4970; Cell Signaling Technology, Beverly, MA) in a 1:2000 dilution overnight at 4°C. The membrane was then washed and incubated with AP-Bovine anti-goat IgG (sc-2351; Santa Cruz Biotechnology) plus AP-Goat anti-rabbit IgG (H+L) (111055045, Jackson ImmunoResearch) in a 1:2000 dilution for 1 h at room temperature. Finally, the membrane was washed and incubated with a chemiluminescent reagent (ECF substrate, GE RPN5785) for 5 min and imaged using a STORM 840 imaging system (GMI Ltd.). Bands for PSMA and ß-actin were quantified using ImageQuant TL software (GE Healthcare Life Sciences).
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