生物活性 | |||
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描述 | NEDD8-activating enzyme (NAE) is an essential component of the NEDD8 conjugation pathway that controls the activity of the cullin-RING subtype of ubiquitin ligases, thereby regulating the turnover of a subset of proteins upstream of the proteasome. Substrates of cullin-RING ligases have important roles in cellular processes associated with cancer cell growth and survival pathways[3]. MLN4924 is a potent and selective inhibitor of NAE with an IC50 value of 0.004 μM[3]. MLN4924 inhibits overall protein turnover in cultured HCT-116 cells. Treatment of HCT-116 cells with MLN4924 for 24 h results in a dose-dependent decrease of Ubc12-NEDD8 thioester and NEDD8-cullin conjugates, with an IC50 < 0.1 μM, resulting in a reciprocal increase in the abundance of the known CRL substrates CDT1, p27 and NRF2 (also known as NFE2L2), but not non-CRL substrates[3]. MLN4924 rapidly inhibits cullin 1 neddylation and remarkably suppresses growth and survival as well as migration in a dose-and time-dependent manner in gastric cancer cells, and significantly suppresses migration by transcriptionally activating E-cadherin and repressing MMP-9[4]. MLN492410, 30 or 60 mg/kg, s.c. leads to a dose- and time-dependent increase in the steady state levels of NRF2 and CDT1 in HCT-116 tumor-bearing mice, and decreases NEDD8-cullin levels in normal mouse tissue as illustrated in mouse bone marrow cells. MLN4924 administered on a BID schedule at 30 and 60 mg/kg inhibits tumor growth with T/C values of 0.36 and 0.15, respectively[3]. |
细胞研究 | |||||
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细胞系 | 浓度 | 检测类型 | 检测时间 | 活动说明 | 数据源 |
K562 cells | Proliferation assay | 72 h | Antiproliferative activity against human K562 cells after 72 hrs by CellTiter-Glo assay, EC50=0.108 μM | 24900352 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.25mL 0.45mL 0.23mL |
11.27mL 2.25mL 1.13mL |
22.55mL 4.51mL 2.25mL |
参考文献 |
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