SB-218078 是一种有效的，选择性，ATP 竞争性且细胞可渗透的检查点激酶 1 (Chk1) 抑制剂，可抑制 cdc25C 的 Chk1 磷酸化，IC50 为 15 nM。SB-218078 对 Cdc2 (IC50 为 250 nM) 和 PKC (IC50 为 1000 nM) 的抑制作用较弱。SB-218078 通过 DNA 损伤和细胞周期停滞诱导细胞凋亡。
| 生物活性 |
SB-218078 is a potent, selective, ATP-competitive and cell-permeable checkpoint kinase 1 (Chk1) inhibitor that inhibits Chk1 phosphorylation of cdc25C with an IC50 of 15 nM. SB-218078 is less potently inhibits Cdc2 (IC50 of 250 nM) and PKC (IC50 of 1000 nM). SB-218078 causes apoptosis by DNA damage and cell cycle arrest. |
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| 体外研究 |
SB-218078 (2.5-5 μM; 18 hours; HeLa cells) treatment abrogates G2 cell cycle arrest caused by either γ-irradiation or a topoisomerase I Topotecan inhibition. Cell Cycle Analysis
Cell Cytotoxicity Assay
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| 体内研究 |
SB-218078 (5 mg/kg; intraperitoneal injection; for 16 hours; C57/Bl6 mice) treatment could promote a strong increase of γ-H2AX and apoptosis throughout the lymphoma, while having no effect on a healthy spleen in Myc-induced lymphomas mouse model.
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| 分子式 |
C24H15N3O3
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| 分子量 |
393.39
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| CAS号 |
135897-06-2
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| 运输条件 |
Room temperature in continental US; may vary elsewhere. |
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| 储存方式 |
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| 科研文献 |
纯度： ≥98%
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