WZ4002 is a mutant selective EGFR inhibitor with IC₅₀s of 2, 8, 3 and 2 nM for EGFR^L858R, EGFR^L858R/T790M, EGFR^E746_A750 and EGFR^{E746_A750/T790M}, respectively.

WZ4002 increases cellular potency correlated with inhibition of EGFR, AKT and ERK1/2 phosphorylation in NSCLC cell lines and EGFR phosphorylation in NIH-3T3 cells expressing different EGFR^T790M mutant alleles. WZ4002 inhibits EGFR kinase activity of recombinant L858R/T790M protein more potently than of WT EGFR^[1].

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.

In a pharmacodynamic study WZ4002 effectively inhibits EGFR, AKT and ERK1/2 phosphorylation which is associated with a significant increase in TUNEL positive and a significant decrease in Ki67 positive cells compared to vehicle alone treated mice. In a 2 week efficacy study, WZ4002 treatment results in significant tumor regressions compared to vehicle alone in both T790M containing murine models. Histological evaluation of the lungs following treatment confirms significant resolution of the tumor nodules with only few small residual nodules and nodule remnants that has evidence of treatment effect with decreased cellularity and increased fibrosis consistent with remodeling/scarring^[1].

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.

494.97

C₂₅H₂₇ClN₆O₃

1213269-23-8

Room temperature in continental US; may vary elsewhere.

DMSO : ≥ 100 mg/mL (202.03 mM)

* “≥” means soluble, but saturation unknown.

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： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (5.05 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (5.05 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 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

• 2.

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

  Solubility: ≥ 2.5 mg/mL (5.05 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (5.05 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 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
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.5 mg/mL (5.05 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (5.05 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 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Zhou W, et al. Novel mutant-selective EGFR kinase inhibitors against EGFR T790M.Nature. 2009 Dec 24;462(7276):1070-4.

EGFR kinase assay is performed using a GST-kinase fusion protein. The final reaction mixture contained 60 mM HEPES pH 7.5, 5 mM MgCl₂, 5 mM MnCl₂, 3 mM Na₃V0₄, 1.25 mM DTT, 20 μM ATP, 1.5 μM PTP1B (Tyr66) biotinylated peptide and 50 ng of EGFR kinase. A phospotyrosine mab (pTyr100) is used to detect phosphorylation of the EGFR substrate peptide in the presence of WZ4002, gefitinib or HKI-272 (concentration ranges 0-10 μM for all drugs) followed a fluorescent Anti-mouse IgG secondary antibody. Fluorescence emission is detected at 615 nm^[1].

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.

Growth and inhibition of growth is assessed by MTS assay. Ba/F3 cells are exposed to WZ4002 treatment for 72 hours. Growth and inhibition of growth is assessed by MTS assay^[1].

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.

Cohorts of EGFR TL/CCSP-rtTA and EGFR TD/CCSP-rtTA are put on doxycycline diet at 5 weeks of age to induce the expression of mutant EGFR. These mice undergo MRI after 6 to 8 weeks of doxycycline diet to document and quantify the lung cancer burden before being assigned to various treatment study cohorts. There is a minimum of 3 mice per treatment group. Mice are then treated either with vehicle (NMP 13 (10% 1-methyl-2-pyrrolidinone: 90% PEG-300) alone or WZ4002 at 25mg/kg gavage daily. After 2 weeks of treatment, these mice undergo a second round of MRI to document their response to the treatment. MRIs and tumor burden measurement are performed^[1].

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]. Zhou W, et al. Novel mutant-selective EGFR kinase inhibitors against EGFR T790M.Nature. 2009 Dec 24;462(7276):1070-4.