ZSTK474
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
ZSTK474通过直接抑制PI3K的活性,强效抑制肿瘤细胞的生长,可以抑制所有I类PI3K,对PI3Kα、PI3-Kβ、PI3-Kγ和PI3-Kδ的IC50分别为16 nM、44 nM、49 nM和4.6 nM[1]。
PI3Ks是一个酶家族,其磷酸化磷酸肌醇的肌醇环的3'-羟基位置。基于结构特性和体外的脂质底物特异性,PI3Ks被分为3类。1α型PI3Ks包含P110α、β和δ,Ib类PI3K包含P110γ,分别将生长因子受体和G-蛋白偶联受体与广泛的下游信号通路相偶联。通过PI3K/Akt途径的信号转导参与调节不同细胞类型的细胞活性,如增殖、存活、迁移、运动和肿瘤发生[2]。
ZSTK474是一种有效的ATP-竞争性泛I类PI3K抑制剂,与其它类PI3K和蛋白激酶相比,它对I类PI3K具有很高的选择性。ZSTK474也抑制成熟破骨细胞的骨吸收活性。实验表明,0.1 μM 的ZSTK474完全阻止破骨细胞的坑形成。另外,对PI3Kα、PI3-Kβ、PI3-Kγ和PI3-Kδ 的IC50值分别是16 nM、44 nM、49 nM和4.6 nM[1]。
注射黑色素瘤细胞的BDF1小鼠中,从0到13天,每日口服ZSTK474 剂量100、200或400 mg/kg,测量肿瘤的体积,结果表明,小鼠中ZSTK474口服给药对人癌异种移植物具有强的抗肿瘤活性,而且对重要的器官无毒性作用。口服ZSTK474后,移植瘤的Akt蛋白磷酸化降低[3]。
参考文献:
1. Toyama S, Tamura N, Haruta K, et al. Research article Inhibitory effects of ZSTK474, a novel phosphoinositide 3-kinase inhibitor, on osteoclasts and collagen-induced arthritis in mice[J]. 2010.
2. Marone R, Cmiljanovic V, Giese B, et al. Targeting phosphoinositide 3-kinase—moving towards therapy[J]. Biochimica et Biophysica Acta (BBA)-Proteins and Proteomics, 2008, 1784(1): 159-185.
3. Yaguchi S, Fukui Y, Koshimizu I, et al. Antitumor activity of ZSTK474, a new phosphatidylinositol 3-kinase inhibitor[J]. Journal of the National Cancer Institute, 2006, 98(8): 545-556.
Physical Appearance | A solid |
Storage | Store at -20°C |
M.Wt | 417.41 |
Cas No. | 475110-96-4 |
Formula | C19H21F2N7O2 |
Solubility | insoluble in H2O; insoluble in EtOH; ≥20.85 mg/mL in DMSO |
Chemical Name | 4-[4-[2-(difluoromethyl)benzimidazol-1-yl]-6-morpholin-4-yl-1,3,5-triazin-2-yl]morpholine |
SDF | Download SDF |
Canonical SMILES | C1COCCN1C2=NC(=NC(=N2)N3C4=CC=CC=C4N=C3C(F)F)N5CCOCC5 |
运输条件 | 蓝冰运输或根据您的需求运输。 |
一般建议 | 不同厂家不同批次产品溶解度各有差异,仅做参考。若实验所需浓度过大至产品溶解极限,请添加助溶剂助溶或自行调整浓度。溶液形式一般不宜长期储存,请尽快用完。 |
Description | ZSTK474是I类PI3K的抑制剂,IC50为37 nM。 | |||||
靶点 | PI3Kδ | PI3Kα | PI3K | PI3Kβ | PI3Kγ | |
IC50 | 4.6 nM | 16 nM | 37 nM | 44 nM | 49 nM |