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2 protocols using sotalol

1

Ovarian Cancer Cell Culture Protocol

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Cells were cultured in 10 cm plates in a humidified atmosphere (5% CO2) at 37 °C. At 70–90% confluence, trypsin (0.25%)/EDTA solution (Corning) was used to detach the cells from the culture plate for passaging and used for further experiments until passage 20. OV81.2 and OV81.2-CP10 primary cell line models were generated as previously described [10 (link)]. A2780 and CP70 cells were obtained from Dr. Paul Modrich (Duke University). OVCAR3 cells were purchased from ATCC. OV81.2, OV81.2-CP10, A2780, CP70, ALDHhigh CP70, ALDHlow CP70, OVCAR8 and 293 T cells were cultured in DMEM medium supplemented with 10% FBS (Gibco) and 1% penicillin-streptomycin (PS) (Gibco). OVCAR3 and OVCAR3-CP38 cells were cultured in RPMI medium (Gibco) with 10% FBS and 1%PS. Phosphate-buffered saline (PBS) was purchased from Corning. Amiodarone, dronedarone, ibutilide and sotalol were purchased from SelleckChem. Dimethyl sulfoxide (DMSO) was purchased from Fisher Chemical.
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2

Electrophysiological Experiments: Reagent Preparation

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All the chemicals used in the electrophysiological experiments were purchased from Sigma–Aldrich. Nifedipine was purchased from Sigma–Aldrich, and stock solutions were prepared in 1 mM in DMSO. 4-aminopyridine (4-AP) was purchased from Sigma–Aldrich, and stock solutions were prepared in 1 M in distilled water. Tetrodotoxin (TTX) was purchased from Absin, and stock solutions were prepared in 10 mM in distilled water. The solutions of caffeine (Sigma–Aldrich, C0750) were freshly prepared when using. Quinidine and verapamil were purchased from Sigma–Aldrich, and stock solutions were both prepared in 10 mM in DMSO. Sotalol and cilostazol were purchased from Selleck, and stock solutions were both prepared in 10 mM in DMSO. Bepridil was purchased from Tocris, and stock solutions were prepared in 1 mM in DMSO.
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