SB-218078

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上海金畔生物科技有限公司为生命科学和医药研发人员提供生物活性分子抑制剂、激动剂、特异性抑制剂、化合物库、重组蛋白，专注于信号通路和疾病研究领域。

SB-218078  纯度: ≥98.0%

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。

SB-218078

SB-218078 Chemical Structure

CAS No. : 135897-06-2

规格 价格 是否有货 数量
1 mg ￥1500 In-stock
5 mg ￥3800 In-stock
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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[1][2][3].

IC50 & Target[1]

Chk1

15 nM (IC50)

Cdc2

250 nM (IC50)

PKC

1000 nM (IC50)

Apoptosis

 

体外研究
(In Vitro)

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[1].
SB-218078 (500-625 μM; 96 hours; HeLa and HT-29 cells) treatment significantly increases the cytotoxicity of DNA damage [1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Cycle Analysis[1]

Cell Line: HeLa cells
Concentration: 2.5 μM, 5 μM
Incubation Time: 18 hours
Result: Abrogated G2 cell cycle arrest caused by γ-irradiation and topoisomerase I inhibition.

Cell Cytotoxicity Assay[1]

Cell Line: HeLa and HT-29 cells
Concentration: 500 nM, 625 nM
Incubation Time: 96 hours
Result: Enhanced cytotoxicity of DNA damage.

体内研究
(In Vivo)

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[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: C57/Bl6 mice injected with ARF-/- lymphomas[2]
Dosage: 5 mg/kg
Administration: Intraperitoneal injection; for 16 hours
Result: Promoted a strong increase of γ-H2AX and apoptosis throughout the lymphoma.

分子量

393.39

Formula

C24H15N3O3
CAS 号

135897-06-2
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
参考文献

  • [1]. Jackson JR, et al. An indolocarbazole inhibitor of human checkpoint kinase (Chk1) abrogates cell cycle arrest caused by DNA damage. Cancer Res. 2000 Feb 1;60(3):566-72.

    [2]. Murga M, et al. Exploiting oncogene-induced replicative stress for the selective killing of Myc-driven tumors. Nat Struct Mol Biol. 2011 Nov 27;18(12):1331-1335.

    [3]. Preet R, et al. Chk1 inhibitor synergizes quinacrine mediated apoptosis in breast cancer cells by compromising the base excision repair cascade. Biochem Pharmacol. 2016 Apr 1;105:23-33.

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