GSK461364

公告提醒：爱必信所有产品和服务仅用于科学研究，不用于临床应用及其他用途提供产品和服务（也不为任何个人提供产品和服务）!

抑制剂描述：

产品名称：GSK461364

产品别名：见爱必信官网

英文别名：GSK461364

靶点：PLK

CAS：929095-18-1

纯度：98%

外观：见爱必信官网

保存方法：store at -20℃ for one year（Powder）； in DMSO or others solvent store at 2-4℃ for two weeks, at -20℃ for six months.

描述：

GSK461364抑制纯化的Plk1，K_i为2 nM，比作用于Plk2/3选择性高1000倍。GSK461364作用于非细胞分裂细胞，从多起点抑制癌细胞系增殖。 野生型p53的RNA沉默提高GSK461364的抗增殖活性。许多癌症疗法对p53野生型患者更有效, p53缺陷肿瘤对GSK461364的高度敏感性可提供治疗肿瘤的机会。

溶解性：Ethanol ：28 mg/mL (51.5 mM)
DMSO ：10 mg/mL (18.39 mM)

体外研究：

GSK461364 inhibits cancer cell line proliferation from multiple origins with minimal toxicity in nondividing human cells. RNA silencing of WT p53 increases the antiproliferative activity of GSK461364. As many cancer therapies tend to be more effective in p53 WT patients, the higher sensitivity of p53-deficient tumors toward GSK461364 could potentially offer an opportunity to treat tumors that are refractory to other chemotherapies as well as early line therapy for these genotypes. GSK461364 is a thiophene amide that inhibits purified Plk1 enzyme in vitro with a Ki of 2 nM and has >100-fold selectivity for Plk1 compared with Plk2 and Plk3. GSK461364 is a potent inhibitor of cell proliferation causing 50% growth inhibition (GI50) below 100 nM in most of the cell lines tested with limited toxicity against human nonproliferating cells. Inhibition of cell cycle progression is concentration dependent with initial delay at G2 phase at high GSK461364 concentrations and arrest at M phase at lower concentrations. Currently, GSK461364 is in a dose-escalation first-time-in-human trial. Cell lines with mutations in the TP53 gene tended to be more sensitive to GSK461364, and that inhibiting the p53 response by RNA silencing confers increased sensitivity in some p53 wild-type (WT) cells. Furthermore, these more sensitive cell lines also have increased levels of chromosome instability, a characteristic associated with TP53 mutations. In preclinical testing, GSK461364 shows antiproliferative activity against multiple (>120) tumor cell lines and potently inhibits the proliferation of greater than 83% and 91% of these cell lines, with IC50 values lower than 50 and 100 nM, respectively.

体内研究：Cell culture growth inhibition by GSK461364 can be cytostatic or cytotoxic but leads to tumor regression in xenograft tumor models under proper dose scheduling. GSK461364 shows clear antitumor activity in human tumor xenograft models. GSK461364 shows a dose-dependent mitotic arrest in mouse xenografts, which correlates with effects on tumor growth. Intraperitoneal administration of GSK461364 causes regression or tumor growth delay in different xenograft models, including Colo205 xenografts. Suppression of Plk1 in vivo by using GSK461364 results in mitotic arrest with aberrant mitotic figures consisting of monopolar or collapsed mitotic spindles.

产品信息订购：

产品更多信息请进入爱必信网站咨询