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2 protocols using anti sqstm1 p62 8025

1

Immunofluorescence Analysis of Autophagy Markers

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Cells were grown at 50% confluency on 13 mm diameter coverslips and were fixed with 100% methanol on ice, before washing them with 1X phosphate buffered saline (PBS). Blocking was done in 10%-FBS. PBS and cells were permeabilized with 0.1% triton. Staining was done in a moist chamber. Images were taken with 63X oil immersion lens on widefield fluorescence microscope (Zeiss Axio Observer). Antibodies used for immunofluorescence were anti-LC3B (1:500 dilution, Abcam), anti-SQSTM1/p62 (8025, Cell Signaling 1:500), anti-ICP5 (1:500 dilution, Abcam), Alexa Fluor-488 and -594 conjugated secondary antibodies (1:750 and 1:1000 dilutions respectively, Life Technologies). Coverslips were mounted to the slides using DAPI-containing ProLong Diamond antifade mounting media (Thermo Fisher, Waltham, MA). Lysotracker staining was performed following the instructions of the manufacturer (ThermoFisher, Waltham, MA).
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2

Ferroptosis-related Molecular Mechanisms

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Erastin (HY-15763), ferrosatatin-1 (HY-100579), N-acetylcystein (HY–B0215) and MitoSOX Red (HY-D1055) were purchased from MedChem Express (Monmouth Junction, NJ). All-trans retinoic acid (ATRA, R2625), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT, M2003) and 4′,6-diamidino-2-phenylindole (DAPI, D9542) were from Merck KGaA (Darmstadt, Germany). Anti-CYTL1 (ab129767) antibody was purchased from Abcam (Cambridge, UK). Anti-CSE (12217-1-AP), anti-ATG5 (10181-2-AP), anti-Keap1 (10503-2-AP), anti-Lamin B1 (12987-1-AP) and anti-p53 (10442-1-AP) antibodies were from Proteintech (Chicago, IL). Anti-HA (3724), anti-LC3B (3868), anti-Myc (2276) and anti-SQSTM1/p62 (8025) antibodies were from Cell Signaling Technology (Beverly, MA). Anti-GAPDH (sc-47724), anti-β-tubulin (sc-5274), anti-β-actin (sc-47778), anti-CBS (sc-133154), anti-Nrf2 (sc-365949), and anti-GPX4 (sc-166570) antibodies were from Santa Cruz Biotechnology (Santa Cruz, CA). Lipofectamine 3000 (L3000), Lipofectamine RNAi MAX (13778), the lysosome-specific dye LysoTraker Red (L7528), and Alexa Fluor 488 goat anti-rabbit IgG (R37116) were purchased from Thermo Fisher Scientific (Waltham, MA). All other chemicals were purchased from Sigma-Aldrich (St. Louis, MO).
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