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Larotrectinib
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Larotrectinib图片
CAS NO:1223403-58-4
包装与价格:
包装价格(元)
10 mM * 1 mL in DMSO电议
5mg电议
10mg电议
50mg电议
100mg电议
200mg电议
500mg电议

产品名称
LOXO-101
ARRY-470
产品介绍
Larotrectinib (LOXO-101) 是一种 ATP 竞争性的、口服选择性抑制剂,对原肌凝蛋白相关激酶(TRK)家族受体的三个亚型 (TRKA,B 和C) 具有纳摩尔级别的 50% 抑制浓度。
生物活性

Larotrectinib (LOXO-101) is an ATP-competitive oral, selective inhibitor of the tropomyosin-related kinase(TRK)family receptors, with low nanomolar 50% inhibitory concentrations against all three isoforms (TRKA, B, and C).

IC50& Target[1][2]

TrkA

 

TrkB

 

TrkC

 

体外研究
(In Vitro)

Larotrectinib (LOXO-101) is an ATP-competitive oral inhibitor of the tropomyosin-related kinase (TRK) family of receptor kinases (TRKA, B, and C), with low nanomolar 50% inhibitory concentrations against all three isoforms, and 1,000-fold or greater selectivity relative to other kinases[1][2]. Measurement of proliferation following treatment with Larotrectinib (LOXO-101) demonstrates a dose-dependent inhibition of cell proliferation in all three cell lines. The IC50is less than 100 nM for CUTO-3.29 and less than 10 nM for KM12 and MO-91 consistent with the known potency of this drug for the TRK kinase family[3].

体内研究
(In Vivo)

In rat and monkey studies, Larotrectinib (LOXO-101) demonstrates 33-100% oral bioavailability and 60-65% plasma protein binding. It has low brain penetration, and is well tolerated in 28 day (d) GLP toxicology studies. A single dose (30 mg/kg) of Larotrectinib (LOXO-101) reduces tyrosine phosphorylation of TRKA and downstream signal transduction (pERK) in the tumor >80%[1]. Athymic nude mice injected with KM12 cells are treated with Larotrectinib (LOXO-101) orally daily for 2 weeks. Dose-dependent tumor inhibition is observed demonstrating the ability of this selective compound to inhibit tumor growth in vivo[4]. Larotrectinib (LOXO-101) (200mg/kg/day p.o for six weeks) reduces leukemic infiltration to undetectable levels in the bone marrow and spleen compared to vehicle-treated mice. Mice treated with Larotrectinib (LOXO-101) are still alive and leukemia-free four weeks after the cessation of treatment, as determined by Xenogen imaging[5].

Clinical Trial
分子量

428.44

性状

Solid

Formula

C21H22F2N6O2

CAS 号

1223403-58-4

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder-20°C3 years
4°C2 years
In solvent-80°C6 months
-20°C1 month
溶解性数据
In Vitro: 

DMSO : ≥ 4.6 mg/mL(10.74 mM)

*"≥" means soluble, but saturation unknown.

配制储备液
浓度溶剂体积质量1 mg5 mg10 mg
1 mM2.3340 mL11.6702 mL23.3405 mL
5 mM0.4668 mL2.3340 mL4.6681 mL
10 mM0.2334 mL1.1670 mL2.3340 mL
*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80℃, 6 months; -20℃, 1 month。-80℃ 储存时,请在 6 个月内使用,-20℃ 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照In Vitro方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂: 10% DMSO    40%PEG300   5%Tween-80   45% saline

    Solubility: ≥ 2.5 mg/mL (5.84 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.84 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH2O 中,得到澄清透明的生理盐水溶液
  • 2.

    请依序添加每种溶剂: 10% DMSO    90% (20%SBE-β-CDin saline)

    Solubility: ≥ 2.5 mg/mL (5.84 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.84 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
*以上所有助溶剂都可在本网站选购。