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2 protocols using hdac7

1

High-Throughput Screening of Epigenetic Modulators

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Four cell lines (human colon cancer cell line HCT116, human embryonic kidney cell line HEK293, human liver cancer cell line HepG2, and human B lymphoma cell line SU-DHL-6), fetal bovine serum (FBS), Eagle's Minimum Essential Medium (EMEM), and Roswell Park Memorial Institute (RPMI) 1640 medium were purchased from American Type Cell Collection (ATCC, Manassas, VA, USA). H9-derived human neural stem cells, defined FBS, trypsin-EDTA, fibronectin, basal fibroblast growth factor (bFGF), epidermal growth factor (EGF), KnockOut™ Dulbecco's Modified Eagle Medium (DMEM)/F12, and penicillin-streptomycin, StemPro® Neural Supplement were acquired from Life Technologies, Carlsbad, CA, USA. Chemicals and epigenetic compound libraries were purchased from Cayman Chemicals (Ann Arbor, MI), Santa Cruz Biotechnology (Dallas, TX, USA), SelleckChem (Houston, TX, USA), and Sigma-Aldrich (St. Louise, MO, USA). HDAC-Glo I/II and CellTiter-Glo reagents were purchased from Promega, Madison, WI. Fluorogenic assay kits for HDAC1, HDAC2, HDAC3, HDAC4, HDAC5, HDAC6, HDAC7, HDAC8, HDAC9, and HDAC10 were acquired from BPS Bioscience (San Diego, CA). White solid bottom 1536-well assay plates were purchased from Greiner Bio-One (Monroe, NC).
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2

HDAC Enzyme Activity Assay Protocol

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Enzyme activity measurements of class I and IIa HDACs were performed using a cell‐free system and according to a method previously described.16 We used fluorogenic HDAC1 (#50061), HDAC2 (#50062), HDAC3 (#50063), HDAC4 (#50064), HDAC5 (#50065), HDAC6 (#50076), HDAC7 (#50067), HDAC8 (#50068) and HDAC9 (#50069) enzyme assay kits from BPS Bioscience (San Diego, CA, USA). To test the enzyme activity of LMK235, 0.001, 0.003, 0.01, 0.03, 0.1, 0.3, 1, 3 and 10 μmol/L concentrations were used. For the IC50 calculations, every data point was normalized to the vehicle (100% activity). The normalized data were fitted with a Hill non‐linear curve fit (OrigionPro 9.0). Employing the “Find X from Y” function in OrigionPro 9.0 resulted in the IC50 values (50% activity).
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