MG-132 (Z-Leu-Leu-Leu-al) 是一种有效的,可逆的蛋白酶体 (proteasome) 抑制剂,IC50为 100 nM。MG-132 有效阻断 26S 蛋白酶体复合物的蛋白水解活性。MG-132 是一种肽醛,是自噬 (autophagy) 激活剂。MG-132 还诱导凋亡 (apoptosis)。
生物活性 | MG-132 (Z-Leu-Leu-Leu-al) is a potentproteasomeandcalpaininhibitor withIC50s of 100 nM and 1.2 μM, respectively. MG-132 effectively blocks the proteolytic activity of the 26Sproteasomecomplex. MG-132, a peptide aldehyde, also is anautophagyactivator. MG-132 also inducesapoptosis[1][2][3]. |
IC50& Target | IC50: 100 nM (Proteasome), 1.2 μM (Calpain)[1][3] |
体外研究 (In Vitro) | MG-132 (Z-Leu-Leu-Leu-al) initiates neurite outgrowth in PC12 cells at a low concentration (30 nM) and is a very strong inhibitor of 20S proteasome[3]. MG-132 (10 μM; 1 hour) reverses the effects of TNF- α on I κ B degradation and NF-κ B activation in A549 cells[4]. MG-132 (0.75-5 μM; 24 hours) potently induces p53-dependent apoptosis in KIM-2 cells by 26S proteasome inhibition[5]. MG-132 (10-40 μM; 24 hours) significantly reduces the viability of C6 glioma cells in both time- and concentration-dependent manners and shows the IC50of 18.5 μM at 24 hours[6]. MG-132 (18.5 μM; 24 hours) induces down-regulation of anti-apoptotic proteins Bcl-2 and XIAP and up-regulates expression of pro-apoptotic protein Bax and caspase-3[6].
Cell Viability Assay[3] Cell Line: | C6 glioma cells | Concentration: | 10, 20, 30, 40 μM | Incubation Time: | 24 hours | Result: | Significantly reduced the viability of C6 glioma cells beginning at 6 h in both time- and concentration-dependent manners and showed the IC50of 18.5 μM at 24 hours. |
Western Blot Analysis[3] Cell Line: | A549 cells | Concentration: | 10 μM | Incubation Time: | 1 hour | Result: | Reversed the effects of TNF-α on IκB degradation and resulted in a reversal of TNF-α-induced NF-κB activation. |
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体内研究 (In Vivo) | MG132 (10 mg/kg; i.p.; daily for 25 days starting 5 days after EC9706 cells injection) significantly inhibits tumor growth of the EC9706 xenograft without causing toxicity to mice[7]. MG-132 (1 mg/kg; i.v.; twice a week for 4 weeks) shows potent tumor inhibitory effect against mice bearing HeLa tumors[8]. MG-132 (1-10 μg/kg/24 hours; subcutaneously implanted osmotic pumps; for 8 days) greatly increases the expression levels of β-dystroglycan, α-dystroglycan, α-sarcoglycan, and dystrophin in skeletal muscle lysates in mice (six-month-old male C57BL/10ScSn DMD mdx mice)[9].
Animal Model: | 5- to 6-weeks old female athymic nude mice (EC9706 xenograft) | Dosage: | 10 mg/kg | Administration: | I.p.; daily for 25 days starting 5 days after EC9706 cells injection | Result: | Significantly inhibited tumor growth of the EC9706 xenograft without causing toxicity to the mice. |
Animal Model: | Five-week-old female C.B-17/lcr-scid/scidJcl mice (bearing HeLa cells)[8] | Dosage: | 1 mg/kg | Administration: | Intravenous injection; twice a week for 4 weeks | Result: | The growth inhibition rates in HeLa tumors was 49% compared to the control. |
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运输条件 | Room temperature in continental US; may vary elsewhere. |
储存方式 | Powder | -20°C | 3 years | In solvent | -80°C | 6 months | | -20°C | 1 month |
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溶解性数据 | In Vitro: DMSO : 100 mg/mL(210.25 mM;Need ultrasonic) 配制储备液 1 mM | 2.1025 mL | 10.5126 mL | 21.0252 mL | 5 mM | 0.4205 mL | 2.1025 mL | 4.2050 mL | 10 mM | 0.2103 mL | 1.0513 mL | 2.1025 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: ≥ 1.67 mg/mL (3.51 mM); Clear solution
此方案可获得 ≥ 1.67 mg/mL (3.51 mM,饱和度未知) 的澄清溶液。 以 1 mL 工作液为例,取 100 μL 16.7 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。 2. 请依序添加每种溶剂: 10% DMSO 90% (20%SBE-β-CDin saline) Solubility: 1.67 mg/mL (3.51 mM); Suspended solution; Need ultrasonic
此方案可获得 1.67 mg/mL (3.51 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 16.7 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。 3. 请依序添加每种溶剂: 10% DMSO 90%corn oil Solubility: ≥ 1.67 mg/mL (3.51 mM); Clear solution
此方案可获得 ≥ 1.67 mg/mL (3.51 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 16.7 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。 *以上所有助溶剂都可在本网站选购。
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