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52 protocols using t0901317

1

Modulation of NR1H3 promoter activity

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Hep3B and COS-7 cells were transfected with NR1H3 promoter pGL3-basic constructs using FuGENE6 (Promega) according to the manufacturer’s instructions. After incubation for six hours, the medium was replenished with 500 μL of fresh medium with 20% FBS, and the cells were incubated a further 18 hours at 37°C in a 5% CO2 incubator. Twenty four hours after transfection, cells were treated with either 200 ng/mL LPS (Sigma-Aldrich, St. Louis, MO, USA), 3 μmol/L 3-[3-[N-(2-chloro-3-trifluoro methylbenzyl)-(2,2-diphenylethyl)amino]propyloxy]phenylacetic acid hydrochloride (hydrochloride GW3965; GW3965, Sigma-Aldrich) or 5 μmol/L N-(2,2,2-trifluoroethyl)-N-[4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]-benzenesulfonamide (sulfonamide T0901317; T0901317, Cayman, Ann Arbor, MI, USA) for 24 hours. These concentrations and time were chosen based on previous work
[16 (link)].
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2

NASH Mice Model with CCl4 and T0901317

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NASH mice were fed an HF diet (60 kcal% fat; D12492, Research Diets, Inc., New Brunswick, NJ, United States) for 4 wk, intraperitoneally injected with CCl4 (Wako Pure Chemical Industries, Ltd., Osaka, Japan) twice a week for the final 2 wk, and intraperitoneally injected with T0901317 (Cayman Chemical Co., Ann Arbor, MI, United States) solubilized in DMSO for the final 5 d. The CCl4 dose was 0.1 mL/kg, and the T0901317 dose was 2.5 mg/kg[28 (link)].
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3

Phytosterol Effects on Cell Lines

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Immortalized human embryonic kidney cells (HEK293.T), human microglia (CHME3; a kind gift from prof. dr. M. Tardieu, Universite Paris-Sud, France66 (link)), human oligodendrocytes (MO3.13), mouse neuroblastoma expressing APPswe (N2a/APPswe; a kind gift from prof. dr. T.W. Kim, Colombia University, USA67 (link)), and monkey kidney cells (COS7) were used for in vitro experiments. All cell lines were cultured in DMEM (Sigma-Aldrich) containing 10% heat-inactivated FCS (Invitrogen, Merelbeke, Belgium) and 100 U penicillin/100 µg streptomycin/ml (Invitrogen), at 37 °C/5% CO2. For phytosterol treatment, cells were incubated for 18 hours in culture medium without FCS containing the Eastern plants extracts, brassicasterol (Sigma-Aldrich), β-sitosterol, (Sigma-Aldrich), fucosterol (Sigma-Aldrich), stigmasterol (analytic confirmed purity of 99,9%), phytosterol mix (containing 60% β-sitosterol, 25% campesterol, and 15% stigmasterol; kindly provided by Ingmar Wester Raisio, Finland), T0901317 (Cayman Chemicals, Huissen, the Netherlands), ethanol (VWR), or DMSO (Sigma-Aldrich).
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4

Dietary Modulation of Lipid Metabolism

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C57BL/6 J male and female mice were purchased from Jackson Laboratory (Bar Harbor, ME) at 6 weeks of age and housed in individually ventilated cages (14:10, light: dark) with free access to feed and water. Test diets were formulated from control diet (Research Diets Inc., AIN-76A) and supplemented with either 0.3% (w/w) stigmasterol (Sigma-Aldrich, Product Number S2424) or 0.015% (w/w) T0901317 (Cayman Chemical, Product Code 71810). At 8 weeks of age, mice were singly housed with access to water and control diet for 3 days. On day four, mice were randomized to receive either control diet, stigmasterol-, or T0901317-supplemented diet (ad libidum) for an additional 4 days. On Day 8, mice were euthanized for plasma and tissue dissection (n=8 per sex). Mice were euthanized by carbon dioxide and exsanguination via cardiac puncture at termination. Liver and small intestine sections were dissected, snap frozen in liquid nitrogen, and stored in −80 °C. Small intestine was divided into three equal sections representing the duodenum, jejunum, and ileum. Blood was collected in EDTA-coated tubes, centrifuged at 2000×g for 15 min at 4 °C, and plasma stored at −80 °C.
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5

Immunoblotting Assay for AMPK Pathway

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Anti-AMPKα, anti-phosphor-AMPKα (Thr172), anti-ACC, anti-phosphor-ACC (Ser 79) and anti-SCD1 antibodies were purchased from Cell Signaling Technology, Inc. Anti-FAS, anti-MTP, anti-PPARα and anti-LXRα antibodies were obtained from Abcam (Cambridge, MA, USA). T0901317 and GW9508 were purchased from Cayman Chemical (Ann Arbor, MI). STO-609 was purchased from Sigma-Aldrich (St. Louis, MO, USA).
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6

LXRα Agonist T0901317 Assay

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The LXRα agonist T0901317 was obtained from Cayman Chemical (Ann Arbor, MI, USA). The primary Ab directed at LXRα was obtained from Abcam (Cambridge, MA, USA). The secondary Abs and β-actin were obtained from Santa Cruz Biotechnology (Santa Cruz, CA, USA). All other chemicals were obtained from Sigma-Aldrich (St. Louis, MO, USA).
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7

T0901317, Pioglitazone, and GW3965 Preparation

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T0901317 was purchased from Cayman Chemical Company (Ann Arbor, Michigan, USA). Pioglitazone and GW3965 were purchased from Sigma-Aldrich (Saint Louis, Missouri, USA). In animal experiments, T0901317 was solubilized in a vehicle containing 3% dimethyl sulfide (DMSO) in PBS and administered by intraperitoneal injection at a dose of 30 mg/kg body weight. In cellular experiments, T0901317 and GW3965 were prepared in a solution of 1∶1 DMSO: PBS at a concentration of 1 mM, and Pioglitazone was solubilized in DMSO at a concentration of 20 mM for further dilution with cell medium.
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8

Synthesis and Dilution of LXR Agonist and Antagonist

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A synthetic LXR agonist, T0901317 (TO), was purchased from Cayman Chemical (Ann Arbor, MN, USA), and a synthetic LXR antagonist, GSK2033 (GSK), was purchased from Axon Medchem BV (Groningen, The Netherlands). TO and GSK were dissolved in and diluted with dimethyl sulfoxide at various concentrations.
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9

Protein Expression and Antibody Validation

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T0901317 was purchased from Cayman Chemical (Ann Arbor, Michigan, USA). Gefitinib (Iressa) was purchased from AstraZeneca UK Limited (Macclesfield, UK). All drugs were suspended in DMSO and stored at −20°C. Antibodies against MMPs, E-cadherin, and β-actin were obtained from Cell Signaling Technology (Danvers, Massachusetts, USA).
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10

Synthesis and Characterization of Oxysterol Compounds

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27HC (purity >95%) and dendrogenin A (purity >98%) were synthesized by Sai Life (Hyderabad, India). 25HC, 4βHC and Desmosterol were synthesized by Steraloids (Newport, RI) (purity >98%). 22(R)HC was synthesized by Avanti (Alabaster, AL) (purity >99%). 24(S)HC and 24,25-epoxycholesterol (24,25EC) were synthesized by Enzo (Farmingdale, NY) (purity ≥98%). GW3965, T0901317, GSK2033 and 7-ketocholesterol (7KC) were synthesized by Cayman (Ann Arbor, MI) (purity ≥98%). 20(S)HC was synthesized by Tocris (Bristol, UK) (purity >95%). 17β-Estradiol (E2) was synthesized by MP Biomedicals (Irvine, California) (purity ≥98%). 27HC, dendrogenin A, 24(S)HC, 20(S)HC, GW3965, T0901317 and GSK2033 were dissolved in dimethyl sulfoxide (DMSO) and stored in −20°C. 7KC, 4βHC, 22(R)HC, 24,25EC and 25HC were dissolved in ethanol and stored in −20°C. Desmosterol was dissolved in M-pyrol and stored in −20°C. Antibodies for flow cytometry were purchased from BD Biosciences and used at a working dilution of 1:100 in FACS buffer (2% fetal bovine serum (FBS) in phosphate buffered saline (PBS)). Catalogue numbers were as follows: CD3: 555275, CD4: 553729, CD8: 557682. Annexin V-FITC/propidium iodide apoptosis assay was purchased from Thermo Fisher (catalogue number: V13242), and FAM-DEVD-FMK/propidium iodide apoptosis assay was purchased from Immunochemistry (catalogue number: 94).
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