Axitinib is a multi-targeted tyrosine kinase inhibitor with IC₅₀s of 0.1, 0.2, 0.1-0.3, 1.6 nM for VEGFR1, VEGFR2, VEGFR3 and PDGFRβ, respectively.

Axitinib (AG-013736) is a potent and selective inhibitor of VEGFR 1 to 3. In transfected or endogenous RTK-expressing cells, Axitinib potently blocks growth factor-stimulated phosphorylation of VEGFR-2 and VEGFR-3 with average IC₅₀ values of 0.2 and 0.1 to 0.3 nM, respectively. Cellular activity against VEGFR-1 is 1.2 nM (measured in the presence of 2.3% bovine serum albumin), equivalent to an absolute IC₅₀ of ~0.1 nM, based on protein binding of Axitinib. The potency against murine VEGFR-2 (Flk-1) in Flk-1-transfected NIH-3T3 cells is 0.18 nM, similar to that of its human homologue. Axitinib shows ~8- to 25-fold higher IC₅₀ against the closely related type III and V family RTKs, including PDGFR-β (1.6 nM), KIT (1.7 nM), and PDGFR-α (5 nM); nanomolar concentrations of Axitinib blocks PDGF BB-mediated human glioma U87MG cell (PDGFR-β-positive) migration but not proliferation^[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

A single oral dose of Axitinib (100 mg/kg) markedly suppresses murine VEGFR-2 phosphorylation for up to 7 h compared with control tumors. Axitinib rapidly inhibits VEGF-induced vascular permeability in the skin of mice; the inhibition is dose-dependent and directly correlated with drug concentration in mice. Pharmacokinetic/pharmacodynamic analysis indicate an unbound EC₅₀ of 0.46 nM. Similar inhibitory effects are also shown in the skin of MV522 tumor-bearing mice without exogenous VEGF-A stimulation. Axitinib inhibits the growth of human xenograft tumors in mice. Axitinib produces dose-dependent growth delay regardless of initial tumor size, model type, or implant site^[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

386.47

C₂₂H₁₈N₄OS

319460-85-0

阿昔替尼；阿西替尼

Room temperature in continental US; may vary elsewhere.

DMSO : 20.83 mg/mL (53.90 mM; Need ultrasonic)

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, 6 months; -20°C, 1 month。-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。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂： 20% HP-β-CD/10 mM citrate pH 2.0

  Solubility: 8.33 mg/mL (21.55 mM); Clear solution; Need ultrasonic and adjust pH to 3 with H₂O
• 2.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.08 mg/mL (5.38 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (5.38 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 3.

  请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in saline)

  Solubility: 2.08 mg/mL (5.38 mM); Suspended solution; Need ultrasonic

  此方案可获得 2.08 mg/mL (5.38 mM) 的均匀悬浊液，悬浊液可用于口服和腹腔注射。

  以 1 mL 工作液为例，取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 4.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.08 mg/mL (5.38 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (5.38 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Fenton BM, et al. The addition of AG-013736 to rractionated radiation improves tumor response without functionally normalizing the tumor vasculature. Cancer Res. 2007 Oct 15;67(20):9921-8.

  [2]. Hu-Lowe DD, et al. Nonclinical antiangiogenesis and antitumor activities of axitinib (AG-013736), an oral, potent, and selective inhibitor of vascular endothelial growth factor receptor tyrosine kinases 1, 2, 3. Clin Cancer Res. 2008 Nov 15;14(22):7272-83

  [3]. Allen E, et al. Metabolic Symbiosis Enables Adaptive Resistance to Anti-angiogenic Therapy that Is Dependent on mTOR Signaling. Cell Rep. 2016 May 10;15(6):1144-60.

Endothelial or tumor cells are starved for 18 h in the presence of either 1% FBS (HUVEC) or 0.1% FBS (tumor cells). Axitinib is added and cells are incubated for 45 min at 37°C in the presence of 1 mM Na₃VO₄. The appropriate growth factor is added to the cells, and after 5 min, cells are rinsed with cold PBS and lysed in the lysis buffer and a protease inhibitor cocktail. The lysates are incubated with immunoprecipitation antibodies for the intended proteins overnight at 4°C. Antibody complexes are conjugated to protein A beads and supernatants are separated by SDS-PAGE^[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Mice and Rats^[2]
Mice with M24met xenograft tumors (400-600 mm³) are administered with a single dose of Axitinib or the control (0.5% carboxymethylcellulose/H₂O). Blood and tumor tissue samples are collected for pharmacokinetic and VEGFR-2 measurements. Total protein concentrations in tumor tissues are determined using the Bradford colorimetric assay.
Six-day-old Sprague-Dawley rats are given two i.p. injections of Axitinib (30 mg/kg ). Animals are sacrificed, retinas are collected and lysed, and immunoprecipitation/immunoblotting experiments are done. ECL-Plus is used for detection and densitometry analysis is done using the Alpha Imager 8800.

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Fenton BM, et al. The addition of AG-013736 to rractionated radiation improves tumor response without functionally normalizing the tumor vasculature. Cancer Res. 2007 Oct 15;67(20):9921-8.

  [2]. Hu-Lowe DD, et al. Nonclinical antiangiogenesis and antitumor activities of axitinib (AG-013736), an oral, potent, and selective inhibitor of vascular endothelial growth factor receptor tyrosine kinases 1, 2, 3. Clin Cancer Res. 2008 Nov 15;14(22):7272-83

  [3]. Allen E, et al. Metabolic Symbiosis Enables Adaptive Resistance to Anti-angiogenic Therapy that Is Dependent on mTOR Signaling. Cell Rep. 2016 May 10;15(6):1144-60.