VX-809 (Lumacaftor)

目录号:S1565 别名: VRT 826809

VX-809 (Lumacaftor) Chemical Structure

Molecular Weight(MW): 452.41

VX-809 (Lumacaftor)通过促进突变型CFTR(F508del-CFTR)的成熟,从而纠正囊性纤维症中常见的CFTR突变,在fisher大鼠甲状腺细胞中EC50为0.1 μM。Phase 3。

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客户使用该产品的3个实验数据:

  • △F508CFTR diffusion is increased by different correction mechanisms. A, example trajectories from MDCK cell lines for wtCFTR (black) and △F508CFTR rescued by VX-809 treatment in the absence (red) and presence (blue ) of mCh-CFTR-C. B, summary graph for wtCFTR, r△F508CFTR and CFTR△PDZ diffusion in VX-809-treated and control MDCK cell lines. C, example trajectories for MDCK cells transiently expressing 3FLAG-tagged wtCFTR(black), △F508CFTR rescued by VX-809 (red), CFTR△PDZ ( blue ), and △F508CFTR△PDZ rescued by VX-809 (green). D, summary graph for CFTR dif- fusion in VX-809-treated MDCK transiently transfected with 3FLAG-tagged CFTR constructs. E, example trajectories from MDCK cell lines stably expressing wtCFTR ( left ) and △F508CFTR ( right ) treated with thapsigargin ( black)or CoPo-22 (red) or transiently expressing GFP-GRASP55 (blue ). F, graphs for △F508CFTR ( top ) and wtCFTR (bottom) diffusion in MDCK cell lines treated with thapsigargin or CoPo-22 or transiently expressing GFP-GRASP55. For reference, median and interquartile values for wtCFTR diffusive range are shown by dashed lines(bar 1, top ). G, GFP-GRASP55 is Golgi-localized by immunocytochemical analysis (scale bar, 10 μm). Scale bar in A (500 nm) refers to all trajectories. In panels Band D, statistically significant differences in populations are shown (*, p<0.001). SPT data for MDCK cell lines was derived from 140 –788 trajectories and for transiently transfected MDCK cells from 131–298 trajectories.

    J Biol Chem 2012 287, 43630-8. VX-809 (Lumacaftor) purchased from Selleck.

     

    VX809 inceases the expression of DF508 CFTR in oocytes.  Oocytes injected with DF508 CFTR and b-adrenergic receptor RNAs were incubated at 17oC for 3 days with and without 5 μM VX809.  The conductance at the reversal potential (gCl at Vm = Erev) was assayed using two-electrode-voltage clamp. Oocytes were placed in experimental chambers and perfused with standard Frog Ringer's at room temperature where the conductance was monitored as a function of time. The conductance was near zero before stimulation using a cocktail containing 10 μM isoproterenol and 1 μM 3-isobutyl-1-methylxanthine (hatched bar).  At steady state, conductance of oocytes treated with 5 μM VX809 ("x" symbols in panel A and white bar in panel B) was significantly larger than that of untreated oocytes ("+" symbols in panel A and black bar in panel B).  Towards the end of the experiments, oocytes were exposed to 10 μM CFTR-172 to verify that the conductance was due to CFTR chloride channels. 

    Xuehong Liu of Oregon Health & Science University. VX-809 (Lumacaftor) purchased from Selleck.

  •  

    Figure 7. Using chamber experiments demonstrating that TGF- β1 inhibits functional rescue of △ F508-CFTR in CF-HBE cells. Representative recordings ( A&B) demonstrating that VX-809 and CF-106951 partially rescued the CFTRinh -172 sensitive I sc compared to vehicle control (Vehicle). VX-809 (10 μM), CF-106951 (10 μM) or vehicle control (DMSO) was added to the basolateral medium for 24 h. The final concentration of DMSO was ,0.1%. Experiments were repeated at least 3 times in CF-HBE cells from 3 different donors. In subsequent experiments, corrector VX-809 ( C&D) or CF-106951 ( E&F ) was used for 24 h to rescue the CFTRinh-172 sensitive Isc. Subsequently, TGF- β1 (15 ng/ml) or vehicle control (CTRL) was added with fresh VX-809 or CF-106951 to the basolateral medium for 24 h. Monolayers were bathed in Ringer’s solution in the presence of amiloride (10 μM). TGF-β1 decreased the CFTRinh-172 sensitive Isc rescued by either VX-809 or CF-106951.

    VX-809 (Lumacaftor) purchased from Selleck.

产品安全说明书

CFTR抑制剂选择性比较

生物活性

产品描述 VX-809 (Lumacaftor)通过促进突变型CFTR(F508del-CFTR)的成熟,从而纠正囊性纤维症中常见的CFTR突变,在fisher大鼠甲状腺细胞中EC50为0.1 μM。Phase 3。
特性 在纠正CFTR缺陷方面,VX-809比之前报道的药物特异性更强,且更有效。
靶点
F508del-CFTR [1]
(Fisher rat thyroid cells)
0.1 μM(EC50)
体外研究

VX-809在雌激素受体(ER)水平上起作用的行为,使一部分F508del-CFTR采取正确折叠的方式,退出ER,转移到细胞表面,正常起作用。VX-809作用于表达 F508del-CFTR的Fischer 大鼠甲状腺 (FRT)细胞, VX-809显著提高F508del-CFTR突变,提高7.1 倍,EC50为0.1 μM, 且增强F508del-CFTR调节的氯离子运输,提高5 倍, EC50 为0.5 μM, 而VRT-768作用时具有更高的EC50 值,EC50分别为7.9 μM 和 16 μM。VX-809 (3 μM)作用于表达F508del-CFTR的HEK-293细胞,提高ER中的F508del-CFTR,提高6倍。VX-809作用于携带F508del-CFTR突变的原代人支气管上皮 (HBE)细胞,提高CFTR成熟度,且增强氯离子分泌,EC50分别为350 nM和81 nM,比Corr-4a和VRT-325更有效。VX-809修正的F508del-CFTR具有单通道开发概率,为0.39,与正常CFTR 类似,正常CFTR为0.40。与VX-770不同, VX-809不是CFTR增强剂,急剧加入VX-809不会对F508del-CFTR 功能造成影响。与VRT-325和Corr-4a相反, VX-809 不会促进正常或突变形式hERG 或P-gp的进程,及其他疾病引起错误定位的蛋白质,包括α1-抗胰蛋白酶Z突变 (E342K-α1-AT)或N370S-β-葡萄糖苷酶, 说明VX-809特异性作用于CFTR。

Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
human CFBE41o cells M{PHZWZ2dmO2aX;uJIF{e2G7 MU\Dc5Jz\WO2b4KgZYN1cX[rdImgZZQhS0[WUjDGOVA5\GWuIH31eIFvfCBqdX7rco94diCxcnnnbY4qKGW6cILld5Nm\CCrbjDoeY1idiCFRlLFOFFwKGOnbHzzJIF{e2W|c3XkJIF{KGmwY4LlZZNmKGmwIH\1cIx6KGeueXPvd5lt[XSnZDDwdo91\WmwIHL5JJdme3Sncn6gZoxwfCCjbnHsfZNqew>? MojmNlYxPDF3N{e=

... Click to View More Cell Line Experimental Data

推荐的实验操作(此推荐来自于公开的文献所以Selleck并不保证其有效性)

激酶实验:[1]
+ 展开

F508del-CFTR成熟度:

用浓度不断增高的VX-809处理稳定表达F508del-CFTR的Fischer大鼠甲状腺(FRT)细胞48小时。温育后,细胞收集在冰冻D-PBS溶液中 (没有钙和镁),然后按1,000 × g 转速在4oC下离心。细胞颗粒溶解1% Nonidet P-40, 0.5%去氧胆酸钠,200 mM NaCl, 10 mM Tris, pH 7.8, 及 1 mM EDTA和蛋白酶抑制剂混合物中(1:250),然后在冰上放置30分钟。裂解物在10,000×g转速4oC下旋转10分钟,将细胞核和不溶性物质制成颗粒状。12 μg 全部蛋白在Laemmli buffer 中与5% β-巯基乙醇在37oC加热5分钟,然后上样到3% 到8% Tris-乙酸凝胶上。凝胶转移到硝化纤维素中,使用单克隆CFTR抗体或 GAPDH多克隆抗体进行 Western blotting。通过增强发光而进行印迹。通过扫描片的 NIH ImageJ 分析而而测量C带和GAPDH的相对量。
细胞实验:[1]
+ 展开
  • Cell lines: FRT(CFTR 或 F508del-CFTR), HEK-293 (CFTT 或 F508del-CFTR), 和HBE
  • Concentrations: 溶于DMSO, 终浓度为~0.1 mM
  • Incubation Time: 24 或 48 小时
  • Method: 使用浓度不断增高的VX-809处理细胞24或48小时。使用Ussing chamber技术记录 CFTR介导氯离子运输中的跨膜电流 (IT)结果。通过使用离体的内面外向式膜片钳测量CFTR单通道活性。使用单克隆CFTR 抗体及免疫印迹技术测量表达CFTR或F508del-CFTR的FRT, HEK-293, 或 HBE细胞中CFTR成熟度。
    (Only for Reference)

溶解度 (25°C)

体外 DMSO 90 mg/mL (198.93 mM)
Ethanol 6 mg/mL (13.26 mM)
Water Insoluble
体内 从左到右依次加入纯溶剂:
30% PEG400+0.5% Tween80+5% propylene glycol
30 mg/mL

* 溶解度检测是由Selleck技术部门检测的,可能会和文献中提供的溶解度有所差异,这是由于生产工艺和批次不同产生的正常现象。请按照顺序依次加入各个纯溶剂。

化学数据

分子量 452.41
化学式

C24H18F2N2O5

CAS号 936727-05-8
稳定性 powder
别名 VRT 826809

计算器

摩尔浓度计算器

摩尔浓度计算器

本计算器可帮助您计算出特定溶液中溶质的质量、溶液浓度和体积之间的关系,公式为:

质量 (g) = 浓度 (mol/L) x 体积 (L) x 分子量 (g/mol)

摩尔浓度计算公式

  • 质量
    浓度
    体积
    分子量

*在配置溶液时,请务必参考Selleck产品标签上、MSDS / COA(可在Selleck的产品页面获得)批次特异的分子量使用本工具。

稀释计算器

稀释计算器

用本工具协助配置特定浓度的溶液,使用的计算公式为:

开始浓度 x 开始体积 = 最终浓度 x 最终体积

稀释公式

稀释公式一般简略地表示为: C1V1 = C2V2 ( 输入 输出 )

  • C1
    V1
    C2
    V2

在配置溶液时,请务必参考Selleck产品标签上、MSDS / COA(可在Selleck的产品页面获得)批次特异的分子量使用本工具。.

连续稀释计算器方程

  • 连续稀释

  • 计算结果

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):
分子量计算器

分子量计算器

通过输入化合物的化学式来计算其分子量:

总分子量:g/mol

注:化学分子式大小写敏感。C10H16N2O2 c10h16n2o2

摩尔浓度计算器

质量 浓度 体积 分子量
计算

临床试验信息

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02858843 Not yet recruiting Cystic Fibrosis|Diabetes Massachusetts General Hospital August 2016 --
NCT02807415 Recruiting Cystic Fibrosis Hannover Medical School|Heidelberg University|University of Giessen June 2016 --
NCT02797132 Recruiting Cystic Fibrosis Vertex Pharmaceuticals Incorporated May 2016 Phase 3
NCT02653027 Not yet recruiting Diabetes|Cystic Fibrosis Massachusetts General Hospital January 2016 --
NCT02544451 Enrolling by invitation Cystic Fibrosis Vertex Pharmaceuticals Incorporated August 2015 Phase 3
NCT02514473 Completed Cystic Fibrosis Vertex Pharmaceuticals Incorporated July 2015 Phase 3

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CFTR Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID