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3 protocols using anti mtor

1

Protein Extraction and Western Blot Analysis

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Protein contents were extracted with RIPA lysis buffer (P0013B; Beyotime) supplemented with 1% proteinase inhibitor phenyl‐methylsulfonyl fluoride (PMSF; ST506‐2; Beyotime). Isolated target protein on SDS‐PAGE gels were transferred onto PVDF membranes (IPVH00010; Millipore). The blotting membranes were treated with 5% skim milk for 1 h and then with primary antibody overnight (12–16 h). Thereafter, blotting bands were incubated with secondary antibodies at room temperature for 2 h before visualization with Immobilon® Western (P90719, Millipore). In this study, primary antibodies (1:1000) included: anti‐β‐actin (200068‐8F10; ZEN‐BIO), anti‐AFF4 (14662‐1‐AP; Proteintech), anti‐LC3B (18725‐1‐AP; Proteintech), anti‐Collagen I (R26615; ZEN‐BIO), anti‐Runx2 (860139; ZEN‐BIO), anti‐ALP (381009; ZEN‐BIO), anti‐ULK1(381887; ZEN‐BIO), anti‐Phospho‐ULK1 (Ser758) (AF4387; Affinity Biosciences), anti‐mTOR (380411; ZEN‐BIO), anti‐Phospho‐mTOR (Ser2448) (381557; ZEN‐BIO). Secondary antibodies included: Goat anti‐mouse IgG (H&L) (HRP conjugated) (511103; ZEN‐BIO) and Goat anti‐rabbit IgG (H&L) (HRP conjugated) (511203, ZEN‐BIO).
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2

Western Blotting Analysis of Protein Markers

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Western blotting was performed using a dioctanoic acid protein detection kit (Cat #PC0020; Solarbio). Samples (40 to 60 µg/10 µL) were separated using 8% or 12% sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Polyvinylidene difluoride membranes were subsequently used for protein transfer, and samples were incubated overnight at 4 °C with the following primary antibodies: anti-p-Akt (Ser473) (1:2000; RRID: AB_2315049; Cell Signaling Technology), anti-Akt (1:1000; RRID: AB_915783; Cell Signaling Technology), anti-p-mTOR (1:2000; Cat #R25033; ZenBio), anti-mTOR (1:2000; Cat #380,411; ZenBio), anti-p62 (1:2000; RRID: AB_10694431; Proteintech), anti-LC3 (1:1000; RRID: AB_2137737; Proteintech), anti-Bax (1:10 000; RRID: AB_2061561; Proteintech, Planegg-Martinsried Germany), anti-Bcl-2 (1:1000, Proteintech, RRID: AB_2227948), anti-cleaved caspase 3 (1:1000; Cat #341,034; ZenBio), anti-caspase 3 (1:1000; RRID: AB_331439; Cell Signaling Technology), anti-caspase 9 (1:500; RRID: AB_2068632; Proteintech), and anti-β-actin (1:5000; Cat #CL594-66009; Proteintech). Goat anti-mouse or anti-rabbit IgG secondary antibodies were incubated with horseradish peroxide (1:500; RRID: AB_449890; Abcam, Cambridge, UK). Signals were detected using a bioimaging system (ChemiDoc XRS+; Bio-Rad), and ImageJ software was used to analyze the band intensity.
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3

Protein Extraction and Western Blot Analysis

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The total proteins were extracted from different treatment groups using lysis buffer (Solarbio) and centrifuged at 12,000 rpm for 30 min at 4°C. The protein concentration was measured using a BCA protein assay kit (BestBio, Shanghai, China). Additionally, the protein was separated by 10% SDS-PAGE and transferred to a PVDF membrane (Millipore Corporation, Billerica, MA). The membrane was blocked with closed solution (Beyotime, Shanghai, China) and then incubated with different primary antibodies, respectively. The following primary antibodies were used: anti-MYOG (Biorbyt, Cambridge, UK; 1:1,000) and anti-MYOD1 (Santa Cruz Biotechnology, Dallas, TX, 1:1,000), anti-MTOR, anti-p-MTOR, anti-P70S6K, anti-P-P70S6K, and anti-β-tubulin (Zenbio, Chengdu, China, 1:1,000) for 12 h. The secondary antibodies used were: mouse anti-rabbit horseradish peroxidase (HRP), goat anti-mouse HRP (Zenbio, 1:1,000). Finally, protein stripes signals were promoted by the ECL kit (Beyotime) and detected by the ImageJ (NIH Image J System, Bethesda, MD). β-Tubulin was used as the internal reference.
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