R547
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.
R547是细胞周期与转录周期蛋白依赖激酶的新型选择性抑制剂,对CDK1/cyclin B\CDK2/cyclin E和CDK4/cyclin D1的Ki值中位数为2 nM(对 CDK1\CDK2和CDK4的Ki=0.001\0.003\0.001 μM) [1].
细胞周期蛋白依赖激酶(CDKs)是一种蛋白激酶家族,调节细胞周期\转录\mRNA加工以及神经细胞分化,可作为潜在的抗癌靶点.CDK抑制剂如Seliciclib正处于临床试验中.虽然其最初只是作为潜在抗癌药物开发,目前Seliciclib的实验室试验表明其也能诱导介导炎症的中性粒细胞的凋亡[2].
R547抑制肿瘤细胞系的增殖,在不分组织来源\多药耐药性(MDR)\p53或视网膜母细胞瘤状态的所有检测的19种细胞系中均有活性.具有5和6氟代的R547是低纳摩尔效力的CDKs抑制剂,并有极强的细胞效力(HCT116细胞系的IC50值为0.08 μM).
在人类结肠癌\肺癌\乳腺癌\前列腺癌以及黑色素瘤异种移植模型中,按40 mg/kg每天口服R547表现出显著的TGI (79-99%).按40 mg/kg每周一次静脉注射也表现出相似的效力(TGI 61-95%).这些剂量下R547并没有毒性,也不会引起体重降低.在3周的研究过程中,R547并没有表现出明显的毒性,研究末尾解剖检验也没有发现任何肉眼可见的病理损伤[3].在人类HCT116结肠癌异种移植裸鼠模型中,R547的肿瘤抑制作用高达95%.口服或静脉注射最大耐受剂量或低于最大耐受剂量的R547,在所有实验模型中都引起显著的TGI.肿瘤异种移植模型中有效剂量的R547能够抑制肿瘤中视网膜母细胞瘤蛋白的磷酸化,提供了临床应用的一种药效标志物.R547是实体瘤治疗的评估中有希望的分子[4].
参考文献:
1. Davis MI1, Hunt JP, Herrgard S, Ciceri P, Wodicka LM, Pallares G, Hocker M, Treiber DK, Zarrinkar PP. “Comprehensive analysis of kinase inhibitor selectivity.” Nat Biotechnol. 2011, 29(11):1046-51.
2. Rossi, Adriano G. “Cyclin-dependent kinase inhibitors enhance the resolution of inflammation by promoting inflammatory cell apoptosis.” 2006. Nature Medicine 12 .
3. Rodriguez A , et al. Mol Cancer Ther, 2006, 5(11), 2644-2658.
4. Chu XJ, et al. J Med Chem, 2006, 49(22), 6549-6560.
- 1. Cingöz O, Goff SP. "Cyclin-dependent kinase activity is required for type I interferon production." Proc Natl Acad Sci U S A. 2018 Mar 27;115(13):E2950-E2959. PMID:29507205
- 2. Costa, D. C. S.; Forezi, L. S. M.; et al. "A Compendium of Tyrosine-kinase Inhibitors: Powerful and Efficient Drugs against Cancer." Rev. Virtual Quim., 2017, 9 (3), 974-1064.
Physical Appearance | A crystalline solid |
Storage | Store at -20°C |
M.Wt | 441.45 |
Cas No. | 741713-40-6 |
Formula | C18H21F2N5O4S |
Solubility | Soluble in DMSO |
Chemical Name | [4-amino-2-[(1-methylsulfonylpiperidin-4-yl)amino]pyrimidin-5-yl]-(2,3-difluoro-6-methoxyphenyl)methanone |
SDF | Download SDF |
Canonical SMILES | COC1=C(C(=C(C=C1)F)F)C(=O)C2=CN=C(N=C2N)NC3CCN(CC3)S(=O)(=O)C |
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 | R547是高效ATP竞争性CDK1/2/4抑制剂,Ki值分别为2 nM/ 3 nM/ 1 nM. | |||||
靶点 | CDK4/CyclinD1 | CDK1/CyclinB | CDK2/CyclinE | PKA | PKB | |
IC50 | 1 nM(Ki) | 2 nM(Ki) | 3 nM(Ki) | >5 μM(Ki) | >5 μM(Ki) |
质量控制和MSDS
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