SU1498 (AG 1498)
(Synonyms: AG 1498; Tyrphostin SU 1498) 目录号 : GC33840
A selective inhibitor of VEGFR2/FLK1
Cas No.:168835-82-3
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
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Kinase experiment: |
The ERK1 or ERK2 solution is pipetted into tubes (1 μL per tube) and mixed with 0-10 μL of 50 μM SU1498 (in kinase buffer without ATP). The blank tube receives buffer only. The volume is adjusted to 11 μL with the same buffer, and the mixtures are incubated for 10 min at 25°C. This is followed by the addition of 40 μL of the Elk1-ATP-buffer solution, and the incubations are continued for 30 min at 30°C. The reactions are stopped with 20 μL of 4× sample buffer mix and heating at 95°C for 10 min. Samples (15 μL) are fractionated by SDS-PAGE, and phosphorylated Elk1 is detected by immunoblotting with anti-phospho-Elk1 antibody[2]. |
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Cell experiment: |
For cell proliferation assay, U87 cells are seeded in 24-well plates (30,000 cells/well) and allowed to attach overnight. Cells are then treated for 24 or 72 h with different concentrations of Bevacizumab (from 10 ng/mL to 250 µg/mL) or SU1498 (from 1 µM to 30 µM) in triplicate wells. The cell viability is then assessed with the MTT assay[4]. |
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References: [1]. Strawn LM, et al. Flk-1 as a target for tumor growth inhibition.Cancer Res. 1996 Aug 1;56(15):3540-5. |
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SU 1498 is a selective inhibitor of the receptor tyrosine kinase VEGF receptor 2 (VEGFR2, aka FLK1; IC50 = 700 nM), having negligible activity at several other serine/threonine and tyrosine kinases.1,2 It effectively blocks signaling through VEGFR2 both in vitro and in vivo.1,3 SU 1498 is used to study the role of VEGFR2 signaling in diverse processes, including angiogenesis, tumor growth, neural progenitor cell survival, and neuroregeneration.3,4,5,6
1.Strawn, L.M., McMahon, G., App, H., et al.Flk-1 as a target for tumor growth inhibitionCancer Res.56(15)3540-3545(1996) 2.Fedorov, O., Marsden, B., Pogacic, V., et al.A systematic interaction map of validated kinase inhibitors with Ser/Thr kinasesProc. Natl. Acad. Sci. USA104(51)20523-20528(2007) 3.Arbiser, J.L., Larsson, H., Claesson-Welsh, L., et al.Overexpression of VEGF 121 in immortalized endothelial cells causes conversion to slowly growing angiosarcoma and high level expression of the VEGF receptors VEGFR-1 and VEGFR-2 in vivoAm. J. Pathol.156(4)1469-1476(2000) 4.Francescone, R., Scully, S., Bentley, B., et al.Glioblastoma-derived tumor cells induce vasculogenic mimicry through Flk-1 protein activationJ. Biol. Chem.287(29)24821-24831(2012) 5.Harms, K.M., Li, L., and Cunningam, L.A.Murine neural stem/progenitor cells protect neurons against ischemia by HIF-1α-regulated VEGF signalingPLoS One5(3)1-12(2010) 6.Pan, Z., Fukuoka, S., Karagianni, N., et al.Vascular endothelial growth factor promotes anatomical and functional recovery of injured peripheral nerves in the avascular corneaFEBS J.27(7)2756-2767(2013)
| Cas No. | 168835-82-3 | SDF | |
| 别名 | AG 1498; Tyrphostin SU 1498 | ||
| Canonical SMILES | O=C(NCCCC1=CC=CC=C1)/C(C#N)=C/C2=CC(C(C)C)=C(O)C(C(C)C)=C2 | ||
| 分子式 | C25H30N2O2 | 分子量 | 390.52 |
| 溶解度 | DMSO：78 mg/mL (199.73 mM) ; Ethanol：78 mg/mL (199.73 mM) ; Water：Insoluble | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.5607 mL | 12.8034 mL | 25.6069 mL |
| 5 mM | 0.5121 mL | 2.5607 mL | 5.1214 mL |
| 10 mM | 0.2561 mL | 1.2803 mL | 2.5607 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
The effect of tyrosine kinase inhibitors, tyrphostins: AG1024 and SU1498, on autocrine growth of prostate cancer cells (DU145)
Folia Histochem Cytobiol 2008;46(2):185-91.PMID:18519236DOI:10.2478/v10042-008-0028-1.
It is well established that autocrine growth of human prostate cancer cell line DU145 is dependent on TGF (EGF)/EGFR loop. However, the participation of several other growth factors in proliferation of DU145 cells has been also proposed. We employed two selective tyrosine kinase inhibitors (tyrphostins): AG1024 (an IGFIR inhibitor) and SU1498 (a VEGFR2 inhibitor) for growth regulation of DU145 cells, cultured in chemically defined DMEM/F12 medium. Both the tested compounds inhibited autocrine growth of DU145 cells at similar concentration values (IC50 approximately 2.5 microM). The tyrphostins arrested cell growth of DU145 in G1 phase, similarly as inhibitors of EGFR. However, in contrast to selective inhibitors of EGFR, neither AG1024, nor SU1498 (at concentration < or =10 microM) decreased the viability of the investigated cells. These results strongly suggest that autocrine growth of DU145 cells is stimulated by, at least, three autocrine loops: TGFalpha(EGF)/EGFR, IGFII/IGFIr and VEGF/VEGFR2(VEGFR1). These data support the hypothesis of multi-loops growth regulation of metastatic prostate cancer cell lines.
Growth factor/growth factor receptor loops in autocrine growth regulation of human prostate cancer DU145 cells
Acta Biochim Pol 2011;58(3):391-6.PMID:21887406doi
Autocrine growth factors produced by epithelial cells mediate the development and proliferation of neoplastic human prostate tissue. Various approaches have been used to down-regulate neoplastic growth of prostate cancer using natural flavonoids, soluble receptors, pseudo-ligands, monoclonal antibodies and tyrosine kinase inhibitors (tyrphostins). Selected growth factor/growth factor receptor loops (mainly TGFα/EGFR and IGFs/IGFIR) have been proposed as regulators of prostate cancer cell growth. We have previously determined that blockade of IGFIR or VEGF2R signaling pathways by tyrphostin AG1024 and SU1498 inhibits autocrine growth and viability of DU145 cells in vitro. Recently, we compared the activity of AG1024 and SU1498 with the inhibiting effect of tyrphostin A23 (a selective inhibitor of EGFR). The results described in this paper confirm that DU145 cells do not produce IGFI or EGF. In contrast, DU145 cells produce a great amount of VEGF, much more than TGFα (about 60-fold), and VEGF may be the real autocrine growth factor of the investigated cells. The results indicate that the growth of DU145 may be regulated by at least three autocrine loops: TGFα/EGFR, IGFII/IGFIR and VEGF/VEGFR2. Neither AG1024 nor SU1498 affected the production of TGFα substantially, which excludes the possibility that IGFRs or VEGFR2 inhibitors arrest the growth of these cells by inhibition of synthesis and/or secretion of TGFα. The obtained data indicate that all tree investigated tyrphostins (AG1024, SU1498 and A23) inhibit signal transmission by Akt (PKB), ERK(1/2), Src and STAT in a similar manner. A comparison of the effects of the investigated tyrphostins indicates that TGFα, IGFII and VEGF stimulate cell growth by affecting the same signaling pathway. The hypothesis was confirmed by the effect of the investigated tyrphostins on activation of EGFR. All these inhibitors decreased phosphorylation of EGFR to the same extent, and after the same time of incubation with cell culture. These results strongly suggest that stimulation of EGFR kinase is the main step in the initiation of mitogen signaling in DU145 cells, regardless of the type of ligand (TGFα, IGFs or VEGF) and their specific receptors.
P2y receptor-mediated angiogenesis via vascular endothelial growth factor receptor 2 signaling
Proc West Pharmacol Soc 2007;50:58-60.PMID:18605230doi
Pathological as well as physiological angiogenesis is known to be regulated by such factors as nucleotides and Vascular Endothelial Growth Factor (VEGF). Activated P2Y nucleotide receptors have been observed to associate and transactivate VEGF Receptor 2 (VEGFR2), suggesting a cooperation between nucleotide and VEGF signaling in angiogenesis. P2YR mediated VEGFR2 signaling therefore may be important in describing the angiogenic signaling of nucleotides such as ATP. Here, we provide evidence that supports the notion of P2YR-VEGFR2 signaling. The significant angiogenic effect of P2Y1/2 receptor agonists (100 microM ATP and 10 microM 2MS-ATP) on endothelial cell tubulogenesis was suppressed back to near control levels upon addition of 1 microM SU1498 (specific VEGFR2 tyrosine kinase inhibitor). We believe that this P2YR-VEFGR2 signaling is an important component of pathological, as well as physiological angiogenesis.
Transactivation of fetal liver kinase-1/kinase-insert domain-containing receptor by lysophosphatidylcholine induces vascular endothelial cell proliferation
Endocrinology 2006 Mar;147(3):1377-85.PMID:16322069DOI:10.1210/en.2005-0644.
Lysophosphatidylcholine (LPC), a major lipid component of oxidized low-density lipoprotein, is a bioactive lipid molecule involved in numerous biological processes including the progression of atherosclerosis. Recently orphan G protein-coupled receptors were identified as high-affinity receptors for LPC. Although several G protein-coupled receptor ligands transactivate receptor tyrosine kinases, LPC-stimulated transactivation of receptor tyrosine kinase has not yet been reported. Here we observed for the first time that LPC treatment of human umbilical vein endothelial cells (HUVECs) induces tyrosyl phosphorylation of vascular endothelial growth factor receptor 2 [fetal liver kinase-1/kinase-insert domain-containing receptor, Flk-1/KDR)]. Flk-1/KDR transactivation by LPC was inhibited by vascular endothelial growth factor receptor tyrosine kinase inhibitors, SU1498 and 4-[(4'-chloro-2'-fluoro) phenylamino]6,7-dimethoxyquinazoline (VTKi) in immunoprecipitation. Furthermore, we examined the effects of the Src family kinases inhibitors, herbimycin A and 4-amino-5-(4-chlorophenyl)-7-(t-butyl) pyrazolo[3,4-d] pyrimidine (PP2), on LPC-induced Flk-1/KDR transactivation. Results from Western blots, c-Src is involved in LPC-induced Flk-1/KDR transactivation because herbimycin A and PP2 inhibited this transactivation. Kinase-inactive (KI) Src transfection also inhibited LPC-induced Flk-1/KDR transactivation. In addition, results from Western blots, ERK1/2 and Akt, which are downstream effectors of Flk-1/KDR, were also activated by LPC, and this was inhibited by SU1498, VTKi, herbimycin A, PP2, and KI Src transfection in HUVECs. LPC-induced stimulation of HUVEC proliferation was shown to be secondary to transactivation because it was suppressed by SU1498, VTKi, herbimycin A, PP2, and KI Src transfection in dimethylthiazoldiphenyltetra-zoliumbromide assay. These findings suggest that LPC-induced Flk-1/KDR transactivation via c-Src may have important implications for the progression of atherosclerosis.
Flow shear stress stimulates Gab1 tyrosine phosphorylation to mediate protein kinase B and endothelial nitric-oxide synthase activation in endothelial cells
J Biol Chem 2005 Apr 1;280(13):12305-9.PMID:15665327DOI:10.1074/jbc.M500294200.
Fluid shear stress generated by blood flow modulates endothelial cell function via specific intracellular signaling events. We showed previously that flow activated the phosphatidylinositol 3-kinase (PI3K), Akt, and endothelial nitric-oxide synthase (eNOS) via Src kinase-dependent transactivation of vascular endothelial growth factor receptor 2 (VEGFR2). The scaffold protein Gab1 plays an important role in receptor tyrosine kinase-mediated signal transduction. We found here that laminar flow (shear stress = 12 dynes/cm2) rapidly stimulated Gab1 tyrosine phosphorylation in both bovine aortic endothelial cells and human umbilical vein endothelial cells, which correlated with activation of Akt and eNOS. Gab1 phosphorylation as well as activation of Akt and eNOS by flow was inhibited by the Src kinase inhibitor PP2 (4-amino-5-(4-chlorophenyl)-7-(t-butyl)pyrazolo[3,4-d]pyrimidine) and VEGFR2 kinase inhibitors SU1498 and VTI, suggesting that flow-mediated Gab1 phosphorylation is Src kinase-dependent and VEGFR2-dependent. Tyrosine phosphorylation of Gab1 by flow was functionally important, because flow stimulated the association of Gab1 with the PI3K subunit p85 in a time-dependent manner. Furthermore, transfection of a Gab1 mutant lacking p85 binding sites inhibited flow-induced activation of Akt and eNOS. Finally, knockdown of endogenous Gab1 by small interference RNA abrogated flow activation of Akt and eNOS. These data demonstrate a critical role of Gab1 in flow-stimulated PI3K/Akt/eNOS signal pathway in endothelial cells.