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3 protocols using rabbit anti atg7

1

Western Blot Protein Expression Analysis

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Western blot analysis was performed to determine the protein expression as previously described (33 (link)). The total proteins were extracted with radioimmunoprecipitation assay (RIPA) lysis buffer containing protease and phosphatase inhibitor cocktail (Beyotime), and quantified using BCA Kit (Beyotime), followed by separation on SDS-PAGE and transferring to polyvinylidene difluoride membranes (Millipore, Billerica, MA, USA), which were then reacted with different primary antibodies at 4 °C overnight. The primary antibodies included mouse anti-myosine heavy chain (MHC) antibody (R&D Systems, Minneapolis, MN, USA), rabbit anti-MuRF1, rabbit anti-MAFbx (Fbx32), rabbit anti-LC3B, rabbit anti-PINK1, rabbit anti-BNIP3, rabbit anti-ATG7, rabbit anti-Beclin 1, rabbit anti-beta tubulin (Abcam, Cambridge, UK), mouse anti-pJak1 (Tyr1034/1035)/Jak2 (Tyr1007/1008), rabbit anti-pSTAT3 (Tyr705), and rabbit anti-Stat3 (Cell Signaling Technology, Danvers, MA, USA). Then, the membranes were incubated with horse radish peroxidase (HRP)-conjugated secondary immunoglobin G (IgG) antibodies for 2 h. The target proteins were detected using enhanced chemiluminescence (Thermo Fisher Scientific, USA), and the band intensity was quantified and normalized against loading control.
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2

Immunofluorescence Analysis of Autophagy Markers

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Primary antibodies were as follows: mouse anti-a2V (Covance, Denver, PA); rabbit anti-GAPDH (Cell signaling, Danvers, MA); rat anti-F4/80, rabbit anti-LC3B, rabbit anti-LAMP-1, rat anti-LAMP-2, rabbit anti-ATG3, rabbit anti-ATG4, rabbit anti-ATG7, rabbit anti-NF-κB p65 (all from Abcam). Secondary antibodies were as follows: goat anti-rabbit IgG-FITC, -mouse IgG AF-594, -rabbit IgG AF-594 (Invitrogen), rabbit anti-rat IgG-FITC (Abcam), goat anti-rabbit, -rat, -mouse IgG-HRP (Santa Cruz Biotechnology), donkey anti-rabbit IRDye-800CW (LI-COR Bioscience, Lincoln, NE) and EnVision + dual link System-Horseradish peroxidase (HRP) (Dako). Isotype control antibodies were as follows: control mouse IgG (R&D Systems); rat IgG isotype, mouse IgG isotype and rabbit IgG isotype (Abcam).
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3

Protein Extraction and Expression Analysis

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The total protein in the muscle was extracted from the protein lysate. Protein concentration was measured using a BCA kit (Beyotime, Haimen, China). Thereafter, 30 μg of the total protein was separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and transferred onto a polyvinylidene difluoride (PVDF) membrane via the wet transfer method. The PVDF membrane was blocked for 1 h, followed by incubation with the primary antibody antibodies: mouse anti-MyHC (R&D Systems, Minneapolis, MN), rabbit anti-NOX4 (Invitrogen, Rockford, IL, USA), rabbit anti-MAFbx, rabbit anti-PINK1, rabbit anti-ATG7, mouse anti-BNIP3, rabbit anti-LC3B, rabbit anti-NOX2, rabbit anti-Nrf2, rabbit anti-NQO1, rabbit anti-PGC-1α (Abcam, Cambridge, UK), mouse anti-p-Jak1 (Tyr1034/1035)/Jak2 (Tyr1007/1008), rabbit anti-p-Stat3 (Tyr705) and rabbit anti-Stat3 (Cell Signaling technology, MA, USA), rabbit anti-MuRF-1, mouse anti-Troponin I-FS, mouse anti-Troponin I-SS, and mouse anti-tubulin (Santa Cruz, Santa Cruz, CA) at 4°C overnight. On the following day, the PVDF membrane was rinsed thrice with tris-buffered saline with Tween (TBST) and incubated with the corresponding secondary antibody at room temperature for 1 h. Thereafter, PVDF membrane was rinsed thrice with TBST, treated with the appropriate amount of luminescent liquid, and finally scanned using a membrane scanner.
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