Additional information:
GSK256066 is a potent and selective PDE4 inhibitor that can be given by inhalation, minimising the potential for side effects. GSK256066 demonstrated a protective effect on the EAR and LAR. GSK256066 is a slow and tight binding inhibitor of PDE4B (apparent IC(50) 3.2 pM; steady-state IC(50) Product information|CAS Number: 801312-28-7|Molecular Weight: 518.58|Formula: C27H26N4O5S|Synonym:|GSK256066|GSK-256066|GSK 256066|Related CAS Number:|801315-14-0 (HCl)|1415560-64-3 (TFA)|Chemical Name: 6-[3-(dimethylcarbamoyl)benzenesulfonyl]-4-[(3-methoxyphenyl)amino]-8-methylquinoline-3-carboxamide|Smiles: CC1=CC(=CC2=C1N=CC(C(N)=O)=C2NC1=CC(=CC=C1)OC)S(=O)(=O)C1=CC(=CC=C1)C(=O)N(C)C|InChiKey: JFHROPTYMMSOLG-UHFFFAOYSA-N|InChi: InChI=1S/C27H26N4O5S/c1-16-11-21(37(34,35)20-10-5-7-17(12-20)27(33)31(2)3)14-22-24(16)29-15-23(26(28)32)25(22)30-18-8-6-9-19(13-18)36-4/h5-15H,1-4H3,(H2,28,32)(H,29,30)|Technical Data|Appearance: Solid Power|Purity: ≥98% (or refer to the Certificate of Analysis)|Solubility: Solubility (25°C) DMSO: 5 mg/mL(9.64 mM). Water: Insoluble.|Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis|Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.|Shelf Life: ≥12 months if stored properly.|Stock Solution Storage: 0 – 4 oC for 1 month or refer to the Certificate of Analysis.|Drug Formulation: To be determined|HS Tariff Code: 382200|How to use|In Vitro:|GSK256066 is a slow and tight binding inhibitor of PDE4B with apparent IC50 of 3.2 pM. GSK256066 is an extremely potent inhibitor of LPS-stimulated TNFα production in PBMCs with pIC50 of 11.0 and IC50 of 10 pM and human whole-blood cultures with pIC50 of 9.90 and IC50 of 126 pM. GSK256066 is highly selective for PDE4 (>3.8 × 105-fold versus PDE1, PDE2, PDE3, PDE5, and PDE6 and >2.5 × 103-fold against PDE7). GSK256066 inhibits PDE4 isoforms A-D with equal affinity.|In Vivo:|GSK256066 inhibits the LPS-induced pulmonary neutrophilia with an ED50 of 1.1 μg/kg, achieving maximal inhibition of 72% at 30 μg/kg when given in the aqueous suspension.PMID:26895888 GSK256066 inhibits the LPS-induced pulmonary neutrophilia with ED50 of 2.9 μg/kg, achieving maximal inhibition of 62% when given in the dry powder formulation. GSK256066 shows a moderate plasma clearance of 39 ml/min/kg, a moderate volume of distribution of 0.8 L/kg, and a relatively short half-life of 1.1 hour in the male CD rat. GSK256066 sustains at a high lung concentration of 2.6 μg/g after intra-tracheal administration as an aqueous suspension at a dose of 30 μg/kg in rats. GSK256066 (10 μg/kg) is administered intratracheally at different times (2, 6, 12, 18, 24, and 36 hours) before LPS administration, inhibiting LPS-Induced Pulmonary Neutrophilia in rat lipopolysaccharide (LPS)-induced models of acute pulmonary inflammation. GSK256066 (0.3–100 μg/kg) inhibits LPS-induced increases in exhaled nitric oxide with ED50 of 35 μg/kg in rat. GSK256066 (10 μg/kg) is administered half a hour before OVA administration in rat, inhibiting OVA-induced pulmonary eosinophilia with ED50 of 0.4 μg/kg. GSK256066 administered intratracheally as a dry powder blended in respiratory-grade lactose at doses of 3 to 100 μg/kg 2 hours before inhaled LPS challenge in ferrets, inhibiting LPS-induced pulmonary neutrophilia with ED50 of 18 μg/kg without inducing emetic episodes.|References:|Nials AT, et al. J Pharmacol Exp Ther, 2011, 337(1), 137-144.Woodrow MD, et al. Bioorg Med Chem Lett, 2009, 19(17), 5261-5265.Tralau-Stewart CJ, et al. J Pharmacol Exp Ther, 2011, 337(1), 145-154.Products are for research use only. Not for human use.|