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3 protocols using p62 ab109012

1

Molecular Mechanisms of Cell Stress Response

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Primary antibodies including p62 (ab109012), LC3 (ab62721), B-cell lymphoma 2 (Bcl-2, ab196495), p16 (ab51243), p21(ab109199) and β-actin (ab6276) were acquired from Abcam (Cambridge, MA, USA). Primary antibodies against p-AMPK (50081), AMPK (5831), Bax (2772), and p53 (2524) were purchased from Cell Signaling Technologies (CST; Danvers, MA, USA). Primary antibodies against cleaved caspase-3 (C-caspase-3, WL01992) were purchased from WanleiBio (Shen Yang, China). Goat anti-rabbit IgG (7074) and goat anti-mouse IgG (7076) secondary antibodies were purchased from CST (Danvers, MA, USA). Cell culture reagents were purchased from Gibco (Grand Island, NY, USA). D-(+)-Glucose was purchased from Sigma-Aldrich (St. Louis, MO, USA). AICAR and Acetylcysteine also called N-acetyl cysteine (NAC) were acquired from MedChemExpress (MCE; Manmouth Junction, NJ, USA).
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2

Western Blot Analysis of mTOR Signaling

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Myocardial lysates were derived from flash frozen tissue (Cell Signaling Technology #9803) and protein concentration determined by BCA (Pierce). Samples were prepared in SDS Tris-Glycine buffer (Life Technologies) and run on TGX 7.5% or 4–15% Tris-Glycine Gels (Bio-Rad) and blotted onto a nitrocellulose membrane. The following primary antibodies were used in this study: phospho-p70 S6K (T389) #9205 lot 26 used at 1:1,000, p70 S6K #9202 lot 20 used at 1:1,000, phospho-4EBP1 (S65) #9451 lot 14 used at 1:1,000, 4EBP1 #9452 lot 12 used at 1:1,000, phospho-Ulk-1 (S757) #1420 clone D706U lot 4 used at 1:500, Ulk-1 #8054 clone D8H5 lot 5 used at 1:500, TSC2 #3612 clone D93F12 lot 6 used at 1:1,000 (Cell Signaling Technology), phospho-TSC2 (S1365) #120718 lot NFSA12072OAH used at 1:500 (NovoPro Labs), and P62 #ab109012 lot GR12843–70 used at 1:1,000 (Abcam), and a total protein stain #926–11016 lot C80522–02 used at 5 ml/membrane (Li-Cor). Antibody binding was visualized by infrared imaging (Odyssey, Li-Cor) and quantified with Li-Cor Image Studio Software 3.1.
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3

Assessing Cellular Stress and Apoptosis

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2,3,5-Triphenyl Tetrazolium Chloride (TTC) was obtained from Sigma. TUNEL Assay Kit was purchased from Roche (Mannheim, Germany). A Reactive Oxygen Species Assay Kit was obtained from Beyotime (Jiangsu, China). Antibodies against Caspase 3, cleaved Caspase 3, apoptosis protease-activating factor-1 (Apaf-1), and cytochrome c (Cyto c) were purchased from Cell Signaling Technology (Danvers, MA). LC3B (ab51520) and p62 (ab109012) antibodies were purchased from Abcam. Beclin1 (11306-1-AP), PINK1 (23274-1-AP), and MnSOD (24127-1-AP) antibodies were purchased from Proteintech. Anti-β-actin antibody was purchased from Bios (Beijing, China).
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