NU-7441 (KU-57788),503468-95-9

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抑制剂描述：

产品名称：NU-7441 (KU-57788)

产品别名：见爱必信官网

英文别名：NU-7441 (KU-57788)

靶点：DNA-PK

CAS：503468-95-9

纯度：＞98%

外观：见爱必信官网

保存方法：Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.

描述：

NU7441 (KU-57788)是一种高度有效的，选择性DNA-PK抑制剂，在无细胞试验中IC50为14 nM，也会抑制PI3K，IC50为5 μM。

溶解性：DMSO ：4 mg/mL warmed (9.67 mM)

体外研究：

NU7441 increases the persistence of γH2AX foci after ionizing radiation–induced or etoposide-induced DNA damage. NU7441 (0.5 μM or 1 μM) appreciably increases G2-M accumulation induced by ionizing radiation, etoposide, and doxorubicin in both SW620 and LoVo cells. NU7441 causes persistence of doxorubicin- and ionising radiation-induced DNA double-strand break and also slightly decreases homologous recombination activity DNA-PK-proficient M059-Fus-1 and DNA-PK-deficient M059 J human tumour cells. NU7441 inhibits UV-induced RPA p34 hyperphosphorylation in a dose-dependent manner both in cells lacking and cells expressing polymerase η. NU7441 increases levels of fludarabine-induced γH2AX foci and correspondingly decreased fludarabine-induced cell death in chronic lymphocytic leukemia cells. NU7441 also inhibits mitoxantrone-induced DNA-PKcs autophosphorylation and repair in chronic lymphocytic leukemia cells. It reduces the frequency of NHEJ while increasing the rate of HDR following Cas9-mediated DNA cleavage.

体内研究：NU7441 intraperitoneally administrated at dose of 10 mg/kg maintains for at least 4 hours shows nontoxic and increases etoposide-induced tumor growth delay 2-fold in mice bearing SW620 xenografts.

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