Doramapimod(Synonyms: 达马莫德; BIRB 796)

上海金畔生物科技有限公司为生命科学和医药研发人员提供生物活性分子抑制剂、激动剂、特异性抑制剂、化合物库、重组蛋白,专注于信号通路和疾病研究领域。

Doramapimod (Synonyms: 达马莫德; BIRB 796) 纯度: 99.62%

Doramapimod (BIRB 796) 是一种具有口服活性的,高效的 p38 MAPK 抑制剂,IC50 值分别为 p38α=38 nM,p38β=65 nM,p38γ=200 nM,p38δ=520 nM。Doramapimod 对 p38 激酶具有皮摩尔亲和力 (Kd=0.1 nM)。Doramapimod 也抑制 B-Raf 和 Abl,IC50 分别为 83 nM 和 14.6 μM。

Doramapimod(Synonyms: 达马莫德; BIRB 796)

Doramapimod Chemical Structure

CAS No. : 285983-48-4

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生物活性

Doramapimod (BIRB 796) is an orally active, highly potent p38 MAPK inhibitor, which has an IC50 for p38α=38 nM, for p38β=65 nM, for p38γ=200 nM, and for p38δ=520 nM. Doramapimod has picomolar affinity for p38 kinase (Kd=0.1 nM). Doramapimod also inhibits B-Raf with an IC50 of 83 nM[1][2].

IC50 & Target[1][2]

p38α

38 nM (IC50)

p38β

65 nM (IC50)

p38δ

520 nM (IC50)

p38γ

200 nM (IC50)

B-Raf

83.4 nM (IC50)

Abl

14600 nM (IC50)

p38 MAP kinase

0.1 nM (Kd)

体外研究
(In Vitro)

Doramapimod (BIRB 796) is usually associated with inflammation because of its role in T-cell proliferation and cytokine production[1].
Doramapimod (BIRB 796) blocks the stress-induced phosphorylation of the scaffold protein SAP97, further establishing that this is a physiological substrate of SAPK3/p38γ. The binding of Doramapimod to the p38 MAPKs or JNK1/2 is impairing their phosphorylation by the upstream kinase MKK6 or MKK4[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究
(In Vivo)

The mean xenograft weigh of Doramapimod (BIRB 796) is lighter than control. The inhibition rate of Doramapimod is 1.93%[4].
The Doramapimod (BIRB 796) treatment slightly reduces blood pressure (166±7 mm Hg at week 7; P<0.05), whereas SD rats are normotensive (123±3 mm Hg). Despite the reduction in blood pressure, untreated and Doramapimod-treated dTGRs have similar heart weight and cardiac hypertrophy indices (heart-to-tibia ratio), which are significantly higher compare with nontransgenic SD rats (310±6 versus 307±6 versus 206±5 mg/cm, respectively; P<0.05)[5].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial

分子量

527.66

Formula

C31H37N5O3

CAS 号

285983-48-4

中文名称

达马莫德

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : 125 mg/mL (236.89 mM; Need ultrasonic)

Ethanol : 33.33 mg/mL (63.17 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 1.8952 mL 9.4758 mL 18.9516 mL
5 mM 0.3790 mL 1.8952 mL 3.7903 mL
10 mM 0.1895 mL 0.9476 mL 1.8952 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°C, 6 months; -20°C, 1 month。-80°C 储存时,请在 6 个月内使用,-20°C 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    90% corn oil

    Solubility: ≥ 2.5 mg/mL (4.74 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (4.74 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    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 μL玉米油中,混合均匀。

  • 2.

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

    Solubility: ≥ 2.08 mg/mL (3.94 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (3.94 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 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

  • 3.

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

    Solubility: 2.08 mg/mL (3.94 mM); Suspended solution; Need ultrasonic

    此方案可获得 2.08 mg/mL (3.94 mM) 的均匀悬浊液,悬浊液可用于口服和腹腔注射。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 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 上海金畔生物科技有限公司 网站选购。
参考文献
  • [1]. Dietrich J, et al. The design, synthesis, and evaluation of 8 hybrid DFG-out allosteric kinase inhibitors. Bioorg Med Chem. 2010 Aug 1;18(15):5738-48

    [2]. Cicenas J, et al. JNK, p38, ERK, and SGK1 Inhibitors in Cancer. Cancers (Basel). 2017 Dec 21;10(1). pii: E1.

    [3]. Kuma Y, et al. BIRB796 inhibits all p38 MAPK isoforms in vitro and in vivo. J Biol Chem, 2005, 280(20), 19472-19479.

    [4]. He D, et al. BIRB796, the inhibitor of p38 mitogen-activated protein kinase, enhances the efficacy of chemotherapeutic agents in ABCB1 overexpression cells. PLoS One. 2013;8(1):e54181.

    [5]. Park JK, et al. p38 mitogen-activated protein kinase inhibition ameliorates angiotensin II-induced target organ damage. Hypertension. 2007 Mar;49(3):481-9.

Cell Assay
[3]

Human embryonic kidney (HEK) 293 and HeLa cells are exposed to 0.5 M sorbitol for 30 min or 100 ng/mL EGF for 10 min and then lysed in buffer A (50 mM Tris-HCl, pH 7.5, 1 mM EGTA, 1 mM EDTA, 1 mM sodium orthovanadate, 10 mM sodium fluoride, 50 mM sodium β-glycerophosphate, 5 mM pyrophosphate, 0.27 M sucrose, 0.1 mM phenylmethylsulfonyl fluoride, 1% (v/v) Triton X-100) plus 0.1% (v/v) 2-mercaptoethanol and Complete proteinase inhibitor mixture. Lysates are centrifuged at 18,000× g for 5 min at 4°C, and the supernatants are removed, quick-frozen in liquid nitrogen, and stored at -20°C until use. When required, cells are preincubated for 1 h without or with 10 μM SB 203580 or 10 μM PD 184352 or with different concentrations of Doramapimod for the times indicated in the figures[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration
[4][5]

Mice[4]
Athymic nude mice (BALB/c-nu/nu), 6 to 8 weeks of age and weighing 18 to 24 g, are used. The mice are treated with Doramapimod (10 mg/kg p.o., every 3 days×5). The body weights of the animals and the two perpendicular tumor diameters (A and B) are recorded every 3 days, and the tumor volume (V) is estimated.
Rats[5]
Male transgenic dTGRs (RCC Ltd) and age-matched nontransgenic Sprague-Dawley (SD) rats (MDC) are use. 2 different protocols are performed. In protocol 2, untreated dTGR (n=15), dTGR+BIRB796 (30 mg/kg per day in the diet for 3 weeks; n=11), and SD (n=8 each group) rats are analyzed. Systolic blood pressure is measured weekly by tail cuff. Twenty-four-hour urine samples are collected in metabolic cages from weeks 5 to 7. Serum is collected at week 7. Serum creatinine and cystatin C are measured by clinical routine assays. Urinary rat albumin is determined by enzyme-linked immunosorbent assay. The aim of protocol 2 is to focus on electrophysiological alterations and mortality. Untreated dTGR (n=10), dTGR+BIRB796 (n=10), and SD (n=10) rats are studied up to week 8.

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

参考文献
  • [1]. Dietrich J, et al. The design, synthesis, and evaluation of 8 hybrid DFG-out allosteric kinase inhibitors. Bioorg Med Chem. 2010 Aug 1;18(15):5738-48

    [2]. Cicenas J, et al. JNK, p38, ERK, and SGK1 Inhibitors in Cancer. Cancers (Basel). 2017 Dec 21;10(1). pii: E1.

    [3]. Kuma Y, et al. BIRB796 inhibits all p38 MAPK isoforms in vitro and in vivo. J Biol Chem, 2005, 280(20), 19472-19479.

    [4]. He D, et al. BIRB796, the inhibitor of p38 mitogen-activated protein kinase, enhances the efficacy of chemotherapeutic agents in ABCB1 overexpression cells. PLoS One. 2013;8(1):e54181.

    [5]. Park JK, et al. p38 mitogen-activated protein kinase inhibition ameliorates angiotensin II-induced target organ damage. Hypertension. 2007 Mar;49(3):481-9.

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