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3 protocols using mda mb 468

1

Cultivation of Breast Cancer Cell Lines

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Human breast epithelial adenocarcinoma cell lines (MCF‐7, MDA‐MB231, MDA‐MB468) were purchased from Iranian Biological Resource Center (IBRC). They were cultured in DMEM—Dulbecco’s Modified Eagle Medium (GIBCO,USA) supplemented with 10% heat inactivated foetal bovine serum (FBS; Invitrogen), 1% non‐essential amino acid, 2 mmol/L L‐glutamine, and 1% penicillin/streptomycin at 37°C in a humidified atmosphere with 5% CO2.
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2

Sildenafil Effects on Breast Cancer Cells

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Chemical reagents, including Sildenafil, 3-(4,5-dimethyl thiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), Triton X-100, and DMSO were provided (Sigma-Aldrich, St. Louis, MO, USA). Cell lines "MCF-7 and MDA-MB-468" were obtained from Iranian Biological Resource Center (Tehran, Iran). The caspase3 antibody was provided from Cell Signaling (cat# 9662S). High-glucose Dulbecco's Modified Eagle's Medium (EMEM), penicillin-streptomycin, and fetal bovine serum were purchased (Gibco, Germany).
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3

Synergistic Anti-Cancer Effect of Sildenafil and Cisplatin

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Cell lines, including MCF-7 and MDA-MB-468 were provided from Iranian Biological Resource Center (Tehran, Iran). Cells culture were performed in DMEM medium containing fetal bovine serum (10%), 2 mM Lglutamine, 0.01 mg/mL bovine insulin (90%) and also Earle's BSS containing 1 mM sodium pyruvate, 1.5 g/L sodium bicarbonate, and 0.1 mM nonessential amino acids. Cells were treated by different concentration of drugs used 24 and 72 h as incubation times. For MTT and apoptosis assay, cells were seeded at 7000 and 100,000 per well, respectively. To validate the results precisely, there was a sample as a control. Different treatment was done in triplicate. Of note, cells were treated with sildenafil as a PDE5 inhibitor in combination with cisplatin to investigate the synergistic effect.
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