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5 protocols using byl719

1

Inhibition of Cellular Pathways

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Inhibitors BKM120 (#A-1108), BEZ235 (#A-1009), BYL719 (#A-1214), and MKK2206 (#A-1206) were purchased from Active Biochem Co. The IKKβ ATP–competitive inhibitor compound A (61 (link)) was manufactured by Bayer Pharmaceuticals.
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2

Characterization of IKKβ Inhibitors

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The IKKβ ATP competitive inhibitor, Compound A was a generous gift from the Baldwin Lab (Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill), and manufactured by Bayer Pharmaceuticals. Celecoxib (#S1261) was purchased from Selleckchem. BKM120 (#A-1108) and BYL719 (#A-1214) were purchased from Active Biochem. A769662-10mg (#ab120335) was purchased from Abcam. Aspirin (#A2093), Sodium salicylate (#A5376) and Bafilomycin A (#B1793) were purchased from Sigma Aldrich. Aspirin/salicylate was prepared as previously described (14 (link)). Briefly, Aspirin was dissolved in 1M Tris-HCl (pH 7.5) to a stock concentration of 1M and final pH of 7.2. An equivalent volume of Tris-HCl (pH 7.2) was used as vehicle control.
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3

Kinase Inhibitors for Cell Signaling

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The small-molecule kinase inhibitors used included the PI3K catalytic inhibitors GDC-0941 (Cayman Chemical, 11600)44 (link) and GDC-0032 (Selleck Chemicals, S7103)45 (link) and BYL-719 (Active Biochem, A-1214)46 (link), the AKT catalytic inhibitor GDC-0068 (Selleck Chemicals, S2808)47 (link), and the AKT allosteric inhibitor MK-2206 (Cayman Chemical, 1032350-13-2)48 (link). Note that AKT catalytic inhibitors are known to increase AKT phosphorylation on threonine 308 and serine 473 by stabilizing a conformation in which these phosphorylated residues are inaccessible to phosphatases while, at the same time, fully inhibiting AKT kinase activity and phosphorylation of downstream substrates49 (link). Inhibitor stocks were dissolved in DMSO at 10 mM under sterile conditions, aliquoted and stored at −80 °C. Aliquots were freeze–thawed no more than five times. Insulin/growth factor treatments were preceded by 15 min of pretreatment with DMSO (Thermo Fisher Scientific, BP231-100) or a small-molecule inhibitor dissolved in DMSO. The inhibitors or DMSO were also present in the medium during labelling.
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4

Murine Macrophage Signaling Assay

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Bovine FGN, poly-RGD+, fMLP, luminol, TMS-diazomethane, wortmannin, fatty acid–free BSA, and HRP were from Sigma-Aldrich. Murine GM-CSF and M-CSF were from PeproTech, whereas murine TNF-α and recombinant human C5a were from R&D Systems. SRBCs in Alsever’s were from TCS Biosciences. Hanks’ balanced salt solution and Dulbecco’s phosphate-buffered saline (dPBS) with Ca2+ and Mg2+ were from Sigma. The isoform-selective PI3K inhibitors IC87114 and TGX221 were from Calbiochem, whereas BYL719 was from Active Biochem. All tissue culture products were from Invitrogen. All buffer components were from Sigma-Aldrich and were endotoxin-free or low-endotoxin, as available. Internal standards for lipid analysis, 1-heptadecanoyl-2-hexadecanoyl-sn-glycero-3-(phosphoinositol 3,4,5-trisphosphate) (C17:0/C16:0-PIP3, as a hepta sodium salt), and C17:0/C16:0-PI were synthesized at the Babraham Institute. All chemicals and solutions were of analytical reagent grade.
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5

Chemical Compounds for Cell Signaling

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The following chemicals were purchased from Sigma Aldrich: iron chloride hexahydrate, iron citrate, ammonium iron citrate, deferoxamine mesylate salt, erastin L-glutamate, arachidonic acid, aminooxyacetic acid, hydrogen peroxide, and carbonyl cyanide m-chlorophenyl hydrazone (CCCP). The EMD kinase library, PI3Kγ/CKII Inhibitor, PI3Kβ Inhibitor VI, PI3Kγ Inhibitor VII, PI3Kα Inhibitor IV, PI3Kα Inhibitor VIII, and Flt3 Inhibitors I, II, III were purchased from EMD Bioscience. GDC0032 and BYL-719 were purchased from Active Biochem. Quizartinib was purchased from Selleckchem.
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