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产品介绍
产品介绍
产品信息
抗原名称
ATR
商品描述
VE-822是选择性ATR抑制剂，Ki< 0.2 nM，ATR选择性比高相关性的PI3K关联酶ATM/DNA-PK高了170倍。作为对XRT和gemcitabine的响应，VE-822（80 nM）减弱ATR信号传导途径，并降低肿瘤细胞存活率。在正常细胞中，VE-822（80 nM）减弱ATR信号通路强度，但并没有增强辐射和gemcitabine杀伤正常细胞的能力。与XRT中的MiaPaCa-2和PSN-1细胞相比，VE-822（80 nM）增加XRT引起的残余γH2AX和53BP1灶。
分子量
463.55
纯度
>98%
可溶性
DMSO ：34 mg/mL (73.3 mM)
外观
黄色粉末
In vitro(体外研究)
VE-822 (80 nM) attenuates ATR signaling pathway and reduces survival in tumor cells in response to XRT and gemcitabine. VE-822 (80 nM) attenuates ATR signaling in normal cells without enhancing radiation and gemcitabine killing in normal cells. VE-822 (80 nM) increases XRT-induced residual γH2AX and 53BP1 foci compared with XRT in MiaPaCa-2 and PSN-1 cells. VE-822 (80 nM) pre-treatment decreases Rad51 foci after XRT in MiaPaCa-2 and PSN-1 cells. VE-822 (80 nM) alone increases the G1-phase-fraction in MiaPaCa-2 and PSN-1 cells. VE-822 (80 nM) abrogates XRT enriched G2/M-phase-fraction in MiaPaCa-2 and PSN-1 cells. VE-822 has little effect alone, while VE-822 (80 nM) combined with XRT and/or gemcitabine enhances early and late apoptosis in PSN-1 cells that is strongest in the triple combination. VE-822 increases tumor response to DNA damaging agents associated with blockade of pChk1 Ser345.
In vivo(体内研究)
VE-822 (60 mg/kg) inhibits phospho-Ser-345-Chk1 in mice bearing PSN-1 tumors after DNA-damaging agents. VE-822 (60 mg/kg) combined with XTR doubles the time for tumors to grow to 600 mm3 of XRT alone in mice bearing both PSN-1 and MiaPaCa-2 tumors. VE-822 (60 mg/kg) added to the combination of gemcitabine and XRT substantially prolongs the tumor growth delay compared with the Gem+XRT1 group n mice bearing both PSN-1 tumors. VE-822 (60 mg/kg) combined with XRT1 increases uptake in tumors by 44% compared with XRT1, suggesting that addition of VE-822 increased γH2AX phosphorylation and persistence of DNA damage caused by XRT.
背景
别名
VE 822
分子式
C24H25N5O3S
CAS号
1232416-25-9
制备和贮存
保存方式
Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.
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