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8 protocols using cardamonin

1

Modulating Stem Cell Fate with YAP and β-Catenin Inhibitors

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hESCs were seeded at a density of 104 cells in Matrigel-coated eight-chamber slides, and after 3 days of culture, 0.5 µM of YAP inhibitor VP (Sigma) was added to the media for further culture of 24 h. The β-catenin inhibitor cardamonin (2 µM; Tocris) was added after 2 days of culture for further culture of 48 h. Cells were fixed in 4% formaldehyde/PBS at room temperature for 10 min and washed 3x with PBS before immunostaining and imaging.
For hNPC induction, hESCs were seeded according to the neural differentiation protocol described above and the β-catenin inhibitor cardamonin (0.5 µM; Tocris) was added in the fresh media daily from day 1 to day 10. The YAP inhibitor VP (0.5 µM; Sigma) was added in two 24 h pulses (days 5 and 9) to reduce toxicity effects.
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2

Fatty Acid and Pharmacological Treatments

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Palmitate (Sigma) and DHA (Nu-Chek-Prep, Inc.) were dissolved in ethanol and then diluted (1:5.4 ratio) with 10% BSA (fatty acid-free and low endotoxin) diluted in 0.1 M phosphate-buffered saline (PBS). Palmitate and DHA treatment in these studies was based on physiological concentrations that have been previously observed in vivo or used for in vitro studies (Ajuwon and Spurlock, 2005 (link), Han et al., 2010 (link), Puri et al., 2009 (link), Weldon et al., 2007 (link)). Controls for fatty acid treatment contained BSA diluted in PBS with an equivalent ratio of ethanol.
AICAR (Tocris) or cardamonin (Tocris) were dissolved in DMSO and then diluted 1:400 and 1:10000 in culture medium to achieve final concentrations of 500 μM or 5 μM, respectively. Vehicle controls for AICAR and cardamonin treatment consisted of cultures in which an equivalent amount of DMSO was added to the medium.
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3

Hantavirus Infection of Umbilical Vein Endothelial Cells

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Human umbilical vein endothelial cells (HUVECs) were isolated from human umbilical cords as previously described [26] (link) and cultured in Endothelial Cell Medium (San Diego, CA), containing essential and non-essential amino acids, vitamins, organic and inorganic compounds, hormones, growth factors, trace minerals, and a low concentration of fetal bovine serum (FBS) (5%) at 37°C in humidified air containing 5% CO2. The cells were used at fewer than 8 passages in this study.
HTNV, strain 76–118 [27] (link), was proliferated in Vero E6 cells and titered using an immunofluorescence staining assay for HTNV nucleocapsid protein as previously described [28] . The TCID50 was 105.5/ml and calculated using the Reed-Muench method.
During all experiments, the cells were pretreated with 30 μM cardamonin (Tocris Bioscience, Bristol, UK) for 30 min [25] (link) and then incubated with or without HTNV for different times.
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4

Evaluating NF-κB Modulators in Cell Assays

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NF-κB antagonist and agonists: TNFα (315–01A, Peprotech, Rocky Hill, NJ, USA ), Prostratin (5739, Tocris, Bristol, UK), CGS 21680 HCl (1063, Tocris), Betulinic acid (53603, Selleck Chemicals, Houston, TX, USA), PSI (4045, Tocris), Cardamonin (2509, Tocris), Bay 11–7082 (S2913, Selleck Chemicals), Bay 11–7085 (S7352, Selleck Chemicals), RO 106–9920 (1778, Tocris), TPCA-1 (S2824, Selleck Chemicals), Ikk-16 (S2882, Selleck Chemicals), PF 184 (4238, Tocris), IMD 0354 (2483, Tocris), Andrographolide (S2261, Selleck Chemicals), Costunolide (2483, Tocris), CID 2858522 (4246, Tocris), Pictilisib (S1065, Selleck Chemicals), Luteolin (S2320, Selleck Chemicals), Celastrol (1571, Tocris), Artemisinin (2668, Tocris). Cells were plated (at a seeding density of 1x104 for 96 well plates and 1x103 for 384 well plates) 12 h before treatment. Cells were treated with drugs at a range of concentrations either with fresh media (for agonists and vehicle only control) or fresh media with 5ng/ml TNFα (for antagonists and vehicle control) and incubated for 24 h. Each drug dose was performed in triplicate or quadruplicate and experiments were repeated at least three times.
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5

Culturing Breast Cancer Cell Lines

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SUM190 and SUM149 were obtained from Asterand (Detroit, MI, USA) and cultured in Hams F-12 media (Mediatech, Manassas, VA, USA) containing 5 μg/ml insulin, 1 μg/ml hydrocortisone, antibiotics (penicillin/streptomycin), and 5% (SUM149) or 2% (SUM190) of fetal bovine serum (FBS) (HyClone, Logan, UT, USA). Medium for SUM190 cells was further supplemented with 5 mM ethanolamine, 10 mM HEPES, 5 μg/ml transferrin, 6.6 ng/ml 3,3',5-triiodo-L-thyronine sodium salt, 8.7 ng/ml sodium selenite, and 1 mg/ml bovine serum albumin (BSA). Cells were cultured at 37 °C in a 5% CO2 incubator. Breast cancer cell lines BT483 and Cama-1 were purchased from the American Type Culture Collection (Manassas, VA, USA) and maintained in DMEM-F12 (1:1) supplemented with 10% FBS. Poly(I:C) was obtained from InvivoGen (San Diego, CA, USA). Doxorubicin hydrochloride, 5-Fluorouracil, Paclitaxel, insulin, hydrocortisone, HEPES, and BSA were purchased from Sigma-Aldrich (St. Louis, MO, USA). Cardamonin and Bay 11-7821 were purchased from TOCRIS Bioscience (Ellisville, MO, USA).
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6

Culturing Breast Cancer Cell Lines

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Breast cancer cell line SUM190 were obtained from Asterand (Detroit, MI, USA) and cultured in Hams F-12 media (Mediatech, Manassas, VA, USA) containing 5 μg/ml insulin, 1 μg/ml hydrocortisone, antibiotics (penicillin/streptomycin), and 2% of fetal bovine serum (HyClone, Logan, UT, USA). Medium for SUM190 cell culture was further supplemented with 5 mM ethanolamine, 10 mM HEPES, 5 μg/ml transferrin, 6.6 ng/ml 3,3′,5-triiodo-L-thyronine sodium salt, 8.7 ng/ml sodium selenite, and 1 mg/ml bovine serum albumin. Cells were cultured at 37°C in a 5% CO2 incubator. Breast cancer cell lines MCF-7, MDA-AB-231 and Cama-1 were purchased from the American Type Culture Collection (Manassas, VA) and maintained in DMEM-F12 (1:1) supplemented with 10% fetal bovine serum (FBS). Doxorubicin hydrochloride, 5-fluorouracil, paclitaxel, insulin, hydrocortisone, HEPES, and bovine serum albumin (BSA) were purchased from Sigma-Aldrich (St. Louis, MO, USA). Cardamonin was purchased from TOCRIS bioscience (Ellisville, MO, USA). B27 supplement was purchased from Fisher (Cat. 17504-044), and EGF and bFGF from RD (Cat. 236-EG-200 and 234-FSE).
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7

Oxazolone-induced Oxidative Stress in HaCaT Cells

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Oxazolone was purchased from Sigma-Aldrich (St. Louis, MO, USA). Cardamonin was purchased from TOCRIS bioscience (Bristol, UK). Dulbecco’s modified Eagle’s medium (DMEM), heat-inactivated fetal bovine serum (FBS), phosphate-buffered saline (PBS), and penicillin/streptomycin (Pen/Strep) were purchased from Welgene (Daegu, Korea). Polyclonal antibodies against NRF2 were purchased from Cell Signaling Technology (Danvers, MA, USA). Monoclonal antibodies against total actin and 8-hydroxydeoxyguanosine (8-OH-dG) were purchased from Santa Cruz Biotechnology (Santa Cruz, CA, USA). Polyclonal antibodies against 4-hydroxynonenal (4-HNE) were purchased from Abcam (Cambridge, MA, USA). Human keratinocyte HaCaT cells were acquired from American Type Culture Collection (Manassas, VA, USA).
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8

Antagonists and Agonists of Prostaglandin E Receptors

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EP1 antagonist (SC-51089), EP2 agonist (Butaprost), EP2 antagonist (TG4-155), EP4 agonist (CAY10598), EP4 antagonists (GW627368X, L-161, 982), and prostaglandin E2 were from Cayman Chemical (Ann Arbor, MI). EP3 antagonist (L798, 106) and cardamonin were obtained from Tocris (Minneapolis, MN). IKK inhibitor III was from Millipore Sigma (Burlington, MA). Tri-reagent was obtained from Molecular Research Center (Cincinnati, OH). All other drugs were obtained from Sigma Aldrich.
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