MG-132
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
MG132是一种肽醛,可以有效地阻断蛋白酶体的蛋白水解活性,包含苄酯基 - 亮氨酸 - 亮氨酸 - 亮氨酸序列。据报道,蛋白酶体的抑制剂 (包括MG132)可以通过形成活性氧(ROS)从而诱导细胞凋亡。蛋白酶体抑制剂引起的ROS的形成和谷胱甘肽(GSH)的耗竭可导致线粒体功能障碍和随后细胞色素c的释放,从而导致细胞活力的丧失。
MG132剂量依赖性地抑制A549细胞的生长,IC50值为20 μM。MG-132也可以抑制人宫颈癌Hela细胞的生长,IC50值为5 μM。同样的,0.5 μM的MG-132就可以显著减少Hela细胞的生长,并诱导细胞死亡。MG132对细胞生长的抑制取决于孵育的剂量和细胞类型。
MG132可以显著阻滞G1期。MG-132通过诱导G2 / M期阻滞从而抑制HT-29结肠癌细胞和MG-63骨肉瘤细胞的生长。在氯化锰处理的A549细胞中,MG-132可以延长G0 / G1期阻滞。同时,MG-132可以诱导胃癌细胞中G1期的阻滞。MG132对泛素-蛋白酶体系统的作用可能导致不同的细胞周期阻滞,这取决于不同的肿瘤细胞系。
已有研究表明,蛋白酶体的抑制剂 (包括MG132)可以通过形成活性氧(ROS)从而诱导凋亡性细胞死亡。MG132通过诱导细胞周期阻滞从而触发细胞凋亡,从而抑制A549细胞的生长,这与ROS和GSH水平的变化具有一定的相关性。
参考文献:
1. Ling YH, Liebes L, Zou Y and Perez-Soler R. Reactive oxygen species generation and mitochondrial dysfunction in the apoptotic response to Bortezomib, a novel proteasome inhibitor, in human H460 non-small cell lung cancer cells, 2003; 278: 33714–33723.
2. Qiu JH, Asai A, Chi S, et al. Proteasome inhibitors induce cytochrome c-caspase-3-like protease-mediated apoptosis in cultured cortical neurons. J Neurosci 2000; 20: 259–265.
3. YH. Han, WH. Park, MG132 as a proteasome inhibitor induces cell growth inhibition and cell death in A549 lung cancer cells via influencing reactive oxygen species and GSH level, Human and Experimental Toxicology, 29(7) 607–614.
4. Wu WK, Wu YC, Yu L, et al. Induction of autophagy by proteasome inhibitor is associated with proliferative arrest in colon cancer cells. Biochem Biophys Res Commun 2008; 374: 258–263.
5. Yan XB, Yang DS, Gao X, et al. Caspase-8 dependent osteosarcoma cell apoptosis induced by proteasome inhibitor MG132. Cell Biol Int 2007; 31: 1136–1143.
6. ZhangW, Tong Q, Li S, Wang X andWang Q.MG-132 inhibits telomerase activity, induces apoptosis and G(1) arrest associated with upregulated p27kip1 expression and downregulated survivin expression in gastric carcinoma cells. Cancer Invest 2008; 26:1032–1036.
7. Wu HM, Chi KH, Lin WW. Proteasome inhibitors stimulate activator protein-1 pathway via reactive oxygen species production. FEBS Lett 2002; 526: 101–105.
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Storage | Store at -20°C该产品在溶液中不稳定,建议现配现用 |
M.Wt | 475.6 |
Cas No. | 133407-82-6 |
Formula | C26H41N3O5 |
Synonyms | MG132,Z-LLL-al,Z-Leu-Leu-Leu-CHO |
Solubility | ≥23.78 mg/mL in DMSO; insoluble in H2O; ≥49.5 mg/mL in EtOH |
Chemical Name | benzyl N-[(2S)-4-methyl-1-[[(2S)-4-methyl-1-[[(2S)-4-methyl-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]amino]-1-oxopentan-2-yl]carbamate |
SDF | Download SDF |
Canonical SMILES | CC(C)CC(C=O)NC(=O)C(CC(C)C)NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1 |
运输条件 | 蓝冰运输或根据您的需求运输。 |
一般建议 | 不同厂家不同批次产品溶解度各有差异,仅做参考。若实验所需浓度过大至产品溶解极限,请添加助溶剂助溶或自行调整浓度。溶液形式一般不宜长期储存,请尽快用完。 |
激酶实验: | |
MG-132对蛋白酶体9的抑制活性 |
MG-132是一种肽醛,可以有效阻断蛋白酶体9的蛋白水解活性。已有研究表明,蛋白酶体的抑制剂 (包括MG-132)通过形成活性氧(ROS)从而诱导凋亡性细胞死亡。蛋白酶体抑制剂引起的ROS的形成和谷胱甘肽(GSH)的耗竭可能导致线粒体功能障碍和随后细胞色素c的释放,从而导致细胞活力的丧失[1,2]。 |
细胞实验: | |
细胞系 |
A549细胞、人宫颈癌HeLa细胞、HT-29结肠癌细胞、MG-63骨肉瘤细胞等。 |
溶解方法 |
在DMSO中的溶解度>23.8 mg/mL。为了获得更高的浓度,可以将离心管在37°C加热10分钟和/或在超声波浴中震荡一段时间。原液可以在-20°C以下储存几个月。 |
反应时间 |
24-48小时 |
应用 |
MG-132是一种膜通透性的蛋白酶体抑制剂。在PC12细胞中,MG-132(10 μM) 可用于诱导神经突触的生长。MG-132剂量依赖地抑制A549细胞的生长,IC50值为20 μM。MG-132也可以抑制人宫颈癌Hela细胞的生长,IC50值约为5 μM。0.5 μM的MG-132就可以显著减少Hela细胞的生长,诱导细胞死亡[3]。MG-132通过诱导G2 / M期细胞周期停滞从而抑制HT-29结肠癌细胞和MG-63骨肉瘤细胞的生长[5]。在氯化锰处理的A549细胞中,MG-132延长G0 / G1期停滞的时间。MG-132也可以诱导胃癌细胞中G1期停滞[6]。 |
动物实验: | |
动物模型 |
C57BL小鼠 |
剂量 |
~10 μg/kg/天,尾静脉或腹腔注射。 |
溶解方法 |
溶解于DMSO中用于制备10 mg/mL的储备原液,工作液可用PBS或生理盐水进行稀释,pH等于7。 |
注意事项 |
请测试所有化合物在室内的溶解度,实际溶解度和理论值可能略有不同。这是由实验系统的误差引起的,属于正常现象。 |
References: 1. Ling YH, Liebes L, Zou Y and Perez-Soler R. Reactive oxygen species generation and mitochondrial dysfunction in the apoptotic response to Bortezomib, a novel proteasome inhibitor, in human H460 non-small cell lung cancer cells, 2003; 278: 33714–33723. 2. Qiu JH, Asai A, Chi S, et al. Proteasome inhibitors induce cytochrome c-caspase-3-like protease-mediated apoptosis in cultured cortical neurons. J Neurosci 2000; 20: 259–265. 3. YH. Han, WH. Park, MG132 as a proteasome inhibitor induces cell growth inhibition and cell death in A549 lung cancer cells via influencing reactive oxygen species and GSH level, Human and Experimental Toxicology, 29(7) 607–614. 4. Wu WK, Wu YC, Yu L, et al. Induction of autophagy by proteasome inhibitor is associated with proliferative arrest in colon cancer cells. Biochem Biophys Res Commun 2008; 374: 258–263. 5. Yan XB, Yang DS, Gao X, et al. Caspase-8 dependent osteosarcoma cell apoptosis induced by proteasome inhibitor MG132. Cell Biol Int 2007; 31: 1136–1143. 6. ZhangW, Tong Q, Li S, Wang X andWang Q.MG-132 inhibits telomerase activity, induces apoptosis and G(1) arrest associated with upregulated p27kip1 expression and downregulated survivin expression in gastric carcinoma cells. Cancer Invest 2008; 26:1032–1036. |
描述 | MG-132是一种蛋白酶体抑制剂,IC50为100 nM,也可以抑制钙蛋白酶,IC50为1.2 μM。 | |||||
靶点 | Proteasome | |||||
IC50 | 100 nM |
质量控制和MSDS
- 批次: