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7 protocols using ouabain

1

Comprehensive Evaluation of Pharmacological Agents

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All salts were from Sangon Biotech in Shanghai. Acetylcholine, Nω-nitro-L-arginine and indomethacin were offered by Sigma-Aldrich (St Louis, USA). NE was purchased from GRANDPHARMA (China) co. LTD. 17β-Estradiol, LPS, Propyl pyrazole triol (PPT), MPP hydrochloride (MPP), G-1, G-15, Diarylpropionitrile (DPN), PHTPP, ouabain, TRAM-34, apamin, U73122, U73343, 2-APB and SKA-31 were supplied by MedChemExpress (MCE; New Jersey, USA), SN-6 was provided by Tocris (Bristol, UK). LiCl was supplied by Macklin (China). The human phospholipase C Beta 1 Polyclonal antibody (Cat No. 26551-1-AP) and human ITPR1-specific Polyclonal antibody (Cat No. 19962-1-AP) were from proteintech. The commercial kits of serum ALT, AST, LD and BUN were from Neobioscience (Jiancheng Bioengineering Institute, Nanjing, China). The commercial kit of serum DAO was from Solarbio. The commercial kit of serum Cr was from Beijing Leagene Biotechnology co. LTD.
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2

Analyzing Effects of Na+/K+ ATPase Inhibitor on Cells

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OS cell lines MG63 and U2OS cells were obtained from the Cell Bank of the Chinese Academy of Sciences (Shanghai, China). Cells were maintained in RPIM 1640 medium (Biological Industries, Kibbutz Beit Haemek, Israel) with 15% fetal bovine serum (FBS, Biological Industries) with in a humidified atmosphere with 5% CO2 at 37°C. The Na+/K+ ATPase inhibitor ouabain was purchased from MedChem Express (Monmouth Junction, NJ), and concentrations of 5 nM, 10 nM, and 20 nM were used in this work. Azacitidine (5-AzaC) and verapamil were purchased from Selleck Chemicals and the concentrations of 50 nM and 5 μM were used, respectively.
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3

Pharmacological Modulation of Calcium Signaling

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Prostaglandin E2, Serotonin hydrochloride(5-HT), SKF-96365, TPEN (N, N, N′, N′- tetrakis (2-pyridylmethyl) ethylenediamine), GSK-7975A, ouabain, HC067047, and GSK1016790A were purchased from MedChemExpress (MCE; Monmouth Junction, NJ, United States). Sigma (Saint Louis, MO, United States) supplied carbamylcholine chloride (CCh), nifedipine, gadolinium chloride, and cyclopiazonic acid (CPA). Tocris Bioscience (Ellisville, MO, United States) supplied 2-Aminoethoxydiphenyl borate (2-APB), while APExBIO Technology LLC (Houston, TX, United States) provided dantrolene. Fura-2 was purchased from Invitrogen (UT, United States), meantime DMEM and FBS were obtained from Hyclone (Logan, UT, United States). Trypsin and penicillin/streptomycin were purchased from Gibco (CA, United States). The other chemicals were obtained from BBI Life Science (Shanghai, China).
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4

TRPV4-Mediated Inflammation Regulation

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All salts were supplied by Sangon Biotech. Glucose, caffeine, carbachol, and indomethacin were purchased from Sigma-Aldrich. Capsaicin, ouabain, SB705498, RN1734, RN1747, U73343, HC067047, GSK1016790A, methyl arachidonyl fluorophosphonate, AA, miconazole, and nystatin were purchased from MedChemExpress (MCE; Monmouth Junction). DSS was from MP Biomedicals (MP Bio). U73122 was from Tocris Bioscience (Tocris). Amiloride hydrochloride was from Molecular Probes, Inc (Molecular Probes). TNF-α and Fura-2/AM (Cat# F1221, Invitrogen) was from Invitrogen. TRPV4 (Abcam Cat# ab39260, RRID: AB_1143677), alpha 1 Sodium Potassium ATPase (phospho Y10) (Abcam Cat# ab124677, RRID: AB_10974461), Alexa Fluor 488 labeled anti-rabbit (Abcam Cat# ab150077, RRID: AB_2630356) antibodies, and MPO Assay Kit were from Abcam. Anti-GAPDH (Proteintech Cat# 60004-1-Ig, RRID: AB_2107436) was from Proteintech.
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5

Comprehensive Compound Preparation Protocol

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Sigma (Saint Louis, MO, United States) supplied l-Glutamine, spermine, cyclopiazonic acid (CPA), nifedipine, and gadolinium (III) chloride (GdCl3). GPNA hydrochloride, cinromide, Calhex 231 hydrochloride, NPS-2143, AMG 517, N, N, N′, N′- tetrakis (2-pyridylmethyl) ethylenediamine (TPEN), probenecid, SN-6, ouabain, mibefradil, and GSK-7975A were purchased from MedChemExpress (MCE; Monmouth Junction, NJ). Tocris Bioscience (Ellisville, MO) supplied 2-Aminoethyl diphenylborinate (2-APB), while APExBIO Technology LLC (Houston, TX) provided dantrolene. The other chemicals were obtained from BBI Life Science (Shanghai, China). Gln, Lithium chloride (LiCl), and gadolinium (III) chloride (GdCl3) were dissolved in ultrapure water. Most of the remainder were prepared with dimethyl sulfoxide (DMSO), and the volume ratio was less than 1:1,000, which did not affect the basic current.
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6

Pharmaceutical Reagents for Cell Studies

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Ouabain (purity ≥ 99%), digoxin and lanatoside C were purchased from MedChemExpress (Monmouth Junction, NJ, USA).MG132 was purchased from Selleck Chemicals (Houston, TX, USA). Cycloheximide (CHX) was purchased from Sigma (St. Louis, MO, USA). All drugs were dissolved in dimethyl sulfoxide (DMSO) to obtain a stocking solution and stored at -20°C. Recombinant human interferon-γ (IFN-γ) was purchased from Beyotime Biotechnology (Shanghai, China) and reconstituted in sterile distilled water containing 0.1% bovine serum albumin.
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7

Investigating Cytotoxic Effects of Ouabain and Encorafenib

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The chemicals ouabain and encorafenib were purchased from MedChem Express (Princeton, NJ, USA). Cell counting kit-8 (CCK8), crystal violet staining solution, 4% paraformaldehyde fix solution, and cell cycle and apoptosis analysis kit were purchased from Beyotime Biotechnology (Shanghai, China). The apoptosis detection kit (Annexin V-PI double staining) was purchased from BD Biosciences (San Jose, CA, USA). Transwell cell culture inserts with 8 μM diameter were purchased from Millipore Corporation (Bedford, MA, USA). The antibodies against Bcl-2, Bax, and β-actin were purchased from Cell Signaling Technology (Beverly, MA, USA).
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