化合物Ro 31-8220 Mesylate T6643

Product Introduction
Bioactivity


英文名: Ro 31-8220 Mesylate

描述: Ro 31-8220 Mesylate (Bisindolylmaleimide IX mesylate) 是PKC 抑制剂，对 PKCα、PKCβI、PKCβII、PKCγ、PKCε 和大鼠大脑 PKC 的IC50值为 5、24、14、27、24 和 23 nM。它还抑制 MAPKAP-K1b、MSK1、S6K1 和 GSK3β，IC50为3、8、15 和 38 nM。

细胞实验: Human A549 lung and MCF-7 breast carcinoma cells are obtained from the European Collection of Animal Cell Cultures. Cells (passage number 10-30) are cultured in an atmosphere of 5% carbon dioxide, the former in Ham's F-12 medium with penicillin/streptomycin, the latter in minimum essential medium (Eagle's modification) with additional pyruvate (1 mM) and non-essential amino acids. Both media are supplemented with 10% FCS and glutamine (2 mM). Cells are subcultured routinely twice weekly to maintain logarithmic growth. For cell proliferation studies cells are seeded and incubated with 3 ml of medium including agents, which is replenished at intervals of 48 h (A549) or 72 h (MCF-7). Following incubation for 4 days (A549) or 6 days (MCF-7) with drugs, cell number is assessed using a Coulter Counter Model ZM. In order to achieve PKC depletion, cells are incubated for 24 h with bryostatin 1 (1 μM). Under these conditions growth inhibition caused by bryostatin 1 is negligible. Bryostatin is removed by extensive washing of the cells followed by a 2 h recovery period. In previous work using the A549 cell line this washing procedure has been shown to eliminate bryostatin-mediated effects. The cells are then incubated for a further 24 h with staurosporine, RO 31-8220, UCN-01 or H-7. In some experiments cells are incubated with inhibitor for 48 rather than 24 h, in this case bryostation was not removed and left in the incubate. After removal of agents inhibition of DNA synthesis is evaluated by measurement of [3H]Tdr incorporation into cell. Radioactivity is counted using a Packard 1500 Tricarb scintillation counter. (Only for Reference)

激酶实验: Assay of PKC Activity : Assay mixtures contain 0.2 mg/mL peptide-gamma, 10 μM MgCl2, 0.6 mM CaCl2, 10 μM [γ-32P]ATP, 1.25 mg/mL phosphatidylserine and 1.25 ng/mL phorbol 12-myristate 13-acetate in 20 mM Hepes (pH 7.5), 2 mM EDTA, 1 mM dithiothreitol and 0.02% (w/v) Triton X-100. Peptide-γ is a synthetic peptide, GPRPLFCRKGSLRQKW, resembling the PKC-γ pseudosubstrate site, except that a serine residue replaces the pseudosubstrate alanine, converting the peptide from an inhibitor into a substrat. The assays are started by the addition of 2.5 m-units of enzyme, incubated at 30 °C for 10 min and terminated by spotting on to P81 paper, followed by extensive washing in 75 mM orthophosphoric acid. The papers are then washed in ethanol, dried, and incorporated radioactivity is determined by liquidscintillation spectroscopy.

体外活性: 在MLP?/?小鼠体内,Ro 31-8220 (6 mg/kg/d,s.c.)可明显增加心肌收缩力.

体内活性: RO31-8220可有效抑制A549细胞（IC50：0.78 μM）和MCF-7细胞（IC50：0.897 μM）的生长。在儿茶酚胺低反应血小板中,RO31-8220可增强Akt的磷酸化从而使肾上腺素诱导的血小板聚集作用增强。通过抑制apoE基因的囊泡运输到质膜,RO31-8220对载脂蛋白E从原代人巨噬细胞的分泌有显著降低效果,对ApoE的mRNA水平或蛋白水平无显著影响。RO31-8220抑制大鼠脑蛋白激酶C活性（IC50：23 nM）,对PKC-α/β/γ/ε无选择性。 此外,RO31-8220对电压依赖性钠离子通道有抑制作用。

存储条件: Powder: -20°C for 3 years | In solvent: -80°C for 1 year

溶解度: Ethanol : 2.8 mg/mL (5 mM)
DMSO : 55.4 mg/mL (100 mM)


关键字: inhibit | Inhibitor | Ro 318220 Mesylate | Protein kinase C | PKC | Ro 31 8220 Mesylate | Ro 31-8220 Mesylate | Bisindolylmaleimide IX Mesylate | Ro 31-8220

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注：该产品未在中华人民共和国食品药品监督管理部门申请医疗器械注册和备案，不可用于临床诊断或治疗等相关用途