SD-208
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.
EC50值:SD-208抑制TGF-β–敏感性CCL64细胞的生长抑制,EC50值为0.1 μmol/L.
细胞因子转化生长因子(TGF)-β成为实验治疗人脑恶性胶质瘤的的主要靶点.SD-208作为一种新型转化生长因子β受体I激酶的抑制剂,抑制生长和侵袭,且增强体内外小鼠和人脑胶质瘤细胞的免疫原性.
体外实验:SD-208抑制由重组TGF-β1或TGF-β2,或含TGF-β的胶质瘤细胞上清液介导的TGF-β–敏感性CCL64细胞的生长抑制,EC50值为0.1 μmol/L.SD-208也阻断胶质瘤细胞中的自分泌和旁分泌TGF-β信号,而其是通过Smad2或TGF-β的磷酸化报告实验中检测出来的,且SD-208强效抑制组成型和TGF-β诱发的迁移和侵袭,但是不抑制其活力或增殖.另外,在重组TGF-β 或含TGF-β的胶质瘤细胞上清液存在时,SD-208可恢复多克隆自然杀伤细胞对胶质瘤细胞的溶解活性[1].
体内实验:在脾脏和大脑中,通过证明对TGF-β诱发的Smad磷酸化的抑制作用来验证SD-208的口服生物利用度.在同系VM/Dk小鼠脑中植入SMA-560细胞后3天开始全身SD-208用药,可将中位生存期从18.6延长至25.1天.组织学分析表明,血管形成\增殖或细胞凋亡方面没有区别.然而,动物SD-208用药后可增加自然杀伤细胞\CD8 T细胞及巨噬细胞肿瘤浸润.这些数据证实,TGF-β受体I激酶抑制剂(例如SD-208)是一种有前景的用于治疗人脑恶性胶质瘤和其他与病理TGF-β活性相关病症的新药剂[1].
临床实验:到目前为止,SD-208仍用于临床前发展阶段.
参考文献:
[1] Leung SY, Niimi A, Noble A, Oates T, Williams AS, Medicherla S, Protter AA, Chung KF. Effect of transforming growth factor-beta receptor I kinase inhibitor 2,4-disubstituted pteridine (SD-208) in chronic allergic airway inflammation and remodeling. J Pharmacol Exp Ther. 2006;319(2):586-94.
Physical Appearance | A crystalline solid |
Storage | Store at -20°C |
M.Wt | 352.75 |
Cas No. | 627536-09-8 |
Formula | C17H10ClFN6 |
Synonyms | SD 208; SD208 |
Solubility | ≥8.95 mg/mL in DMSO with ultrasonic; insoluble in EtOH; insoluble in H2O |
Chemical Name | 2-(5-chloro-2-fluorophenyl)-N-pyridin-4-ylpteridin-4-amine |
SDF | Download SDF |
Canonical SMILES | C1=CC(=C(C=C1Cl)C2=NC3=NC=CN=C3C(=N2)NC4=CC=NC=C4)F |
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 | SD-208是一种强效的和具有口服活性的TGF-βR I激酶抑制剂,基于直接酶法的IC50值为49 nM. | |||||
靶点 | TGF-βR I kinase | |||||
IC50 | 49 nM |
质量控制和MSDS
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