EC359 is a potent, selective, high affinity and orally active leukemia inhibitory factor receptor (LIFR) inhibitor with a K_d of 10.2 nM, which directly interacts with LIFR to effectively block LIF/LIFR interactions^[1].

Kd: 10.2 nM (leukemia inhibitory factor receptor)^[1]

EC359 (0-100 nM; 3 days; BT-549, SUM-159, MDA-MB-231, MDA-MB-468, and HCC1806 cells) treatment reduces cell viability in a dose-dependent manner^[1].
EC359 (20 nM, 25 nM; 72 hours; MDA-MB-231 and BT-549 cells) treatment significantly increases caspase-3/7 activity and Annexin V-positive cells in both MDAMB-231 and BT-549 cells. EC359 exhibits significant inhibitory activity on invasion and promotes apoptosis of TNBC cells^[1].
EC359 (100 nM; 12 hours; BT549 cells) treatment significantly reduces the expression of several (such as STAT1 TGFB1, JUNB, MCL-1, etc) known STAT3 target genes^[1].
EC359(100 nM; 1 hour; MDA-MB-231 and BT-549 cells) treatment substantially reduces the LIF activation of STAT3, also reduces the STAT3 activation by OSM and CNTF. EC359 treatment substantially decreases the phosphorylation of AKT, mTOR, S6, and ERK1/2 in MDA-MB231 and BT-549 cells. EC359 treatment also increases the phosphorylation of proapoptotic p38MAPK in BT549 cells^[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.

EC359 (5 mg/kg; subcutaneous injection; 3 days per week; for 25 days; female athymic nude mice) treatment significantly reduces the tumor progression. The body weights of mice in EC359-treated groups remains unchanged confirming the low toxicity of EC359^[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.

540.68

C₃₆H₃₈F₂O₂

2012591-09-0

Room temperature in continental US; may vary elsewhere.

DMSO : 125 mg/mL (231.19 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： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.08 mg/mL (3.85 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (3.85 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

• 2.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.08 mg/mL (3.85 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (3.85 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]. Viswanadhapalli S, et al. EC359: A First-in-Class Small-Molecule Inhibitor for Targeting Oncogenic LIFR Signaling in Triple-Negative Breast Cancer. Mol Cancer Ther. 2019 Aug;18(8):1341-1354.