MG-132

MCE 国际站：MG-132

产品活性：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)。

研究领域：Metabolic Enzyme/Protease | Autophagy | Apoptosis

作用靶点：Proteasome | Autophagy | Apoptosis

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.
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.
MG-132 (0.75-5 μM; 24 hours) potently induces p53-dependent apoptosis in KIM-2 cells by 26S proteasome inhibition.
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 IC₅₀ of 18.5 μM at 24 hours.
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.

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.
MG-132 (1 mg/kg; i.v.; twice a week for 4 weeks) shows potent tumor inhibitory effect against mice bearing HeLa tumors.
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).

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