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3 protocols using sc 376594

1

Western Blot Analysis of Heart Proteins

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HCFs or mouse heart tissue were lysed in RIPA buffer. Protein concentration was determined using Pierce BCA protein assay kit (Thermo Fisher, PI23227) according to manufacturer’s instructions. Western blot was performed as previously described 55 . Total protein was examined using Pierce Reversible Protein Stain Kit for PVDF membranes (Thermo Fisher, PI24585) and imaged using Bio-Rad ChemiDoc Imaging System. Target protein was detected using SuperSignal West Pico Chemiluminescent Substrate (Thermo Fisher, 34577). Target band intensities were quantified using ImageJ software (National Institutes of Health). Primary Antibodies used include: FTH1 (1:1000, Santa Cruz Biotechnology, sc-376594), FTL (1:1000, Abcam, ab109373), PTGS2 (1:1000, Proteintech, 12375-1-AP), TSP1 (1:1000, Abcam, ab85762), and α-TUBULIN (1:1000, Sigma, T5168-100UL). Secondary antibodies include goat-anti-mouse (1:2500, Thermo Invitrogen, 32430) or goat-anti-rabbit (1:2500, Santa Cruz Biotechnology, sc-2357) horseradish peroxidase (HRP)-conjugated antibodies.
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2

Western Blot Analysis of Protein Expression

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HCFs or mouse heart tissue were lysed in RIPA buffer. Protein concentration was determined using Pierce BCA protein assay kit (Thermo Fisher, PI23227) according to manufacturer’s instructions. Western blot was performed as previously described.63 (link) Total protein was examined using Pierce Reversible Protein Stain Kit for PVDF membranes (Thermo Fisher, PI24585) and imaged using Bio-Rad ChemiDoc Imaging System (Bio-Rad, 12003154). Target protein was detected using SuperSignal West Pico Chemiluminescent Substrate (Thermo Fisher, 34577). Target band intensities were quantified using ImageJ software (National Institutes of Health). Primary Antibodies used include: FTH1 (1:1000, Santa Cruz Biotechnology, sc-376594), FTL (1:1000, Abcam, ab109373), PTGS2 (1:1000, Proteintech, 12375-1-AP), TSP1 (1:1000, Abcam, ab85762), and α-TUBULIN (1:1000, Sigma, T5168-100UL). Secondary antibodies include goat-anti-mouse (1:2500, Thermo Invitrogen, 32430) or goat-anti-rabbit (1:2500, Santa Cruz Biotechnology, sc2357) horseradish peroxidase (HRP)-conjugated antibodies.
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3

Immunogold Labeling of Cellular Ultrastructure

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Cells were incubated with propylene oxide and then exposed to propylene oxide/Epikote. The blocks embedded with the Epon-Araldite mixture (Electron Microscopy Sciences, Hatfield, PA, USA) were sectioned for imaging under a transmission electron microscope (HITACHI-7000, Hitachi, Tokyo, Japan). For immunogold labeling, the ultrathin sections of the cells on the nickel grids were blocked with the SuperBlockTM blocking buffer (Thermo Fisher Scientific Inc.), followed by incubation with mouse monoclonal anti-FTH1 (1:100, Santa Cruz Biotechnology, Inc., Dallas, TX, USA, sc-376594) and rabbit polyclonal anti-nuclear receptor co-activator 4 (NCOA4, 1:100, Abcam, ab222071) antibodies. The grids incubated with gold-containing goat polyclonal anti-mouse (20 nm; 1:10, Abcam, ab27242) and anti-rabbit (12 nm; 1:10, Abcam, ab105298) secondary antibodies were stained with saturated uranyl acetate and lead citrate, respectively. The images were examined under a transmission electron microscope (HITACHI-7000, Hitachi, Tokyo, Japan).
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