GSK343 is a highly potent and selectiveEZH2inhibitor with anIC₅₀of 4 nM.

IC50: 4 nM (EZH2), 240 nM (EZH1)^[1]

GSK343, which contains an n-propyl group at the 4-position of the pyridone, has EZH2 K_i^app=1.2±0.2 nM. In this 6-day proliferation assay, among the cell lines evaluated in this study, the prostate cancer cell line LNCaP is the most sensitive to EZH2 inhibition, with growth IC₅₀value of 2.9 μM for GSK343^[1]. GSK343 is found to have half maximal inhibitory concentration values of 13 μM in HeLa cells and 15 μM in SiHa cells^[2].

Compare with the controls, GSK343 (5 mg/kg)-treated mice exhibits significantly inhibited tumor growth. The average tumor volume and weight of the GSK343-treated cohort is remarkably reduced. As early as 20 days post-implantation, a significant reduction in tumor growth is observed in the GSK343-treated cohort relative to the control cohort; this difference persisted through the remainder of the study. In addition, compare with the control cohort, the GSK343-treated animals in the xenograft model show a remarkable increase in messenger RNA levels of E-cadherin but a significant decrease in vimentin messenger RNA levels^[2].

541.69

Solid

C₃₁H₃₉N₇O₂

1346704-33-3

Room temperature in continental US; may vary elsewhere.

DMSO : 15.62 mg/mL(28.84 mM;Need ultrasonic)

H₂O :< 0.1 mg/mL (ultrasonic;warming;heat to 60℃)(insoluble)

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℃, 6 months; -20℃, 1 month。-80℃ 储存时，请在 6 个月内使用，-20℃ 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: ≥ 1.56 mg/mL (2.88 mM); Clear solution

  此方案可获得 ≥ 1.56 mg/mL (2.88 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 15.6 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-CDin saline)

  Solubility: ≥ 1.56 mg/mL (2.88 mM); Clear solution

  此方案可获得 ≥ 1.56 mg/mL (2.88 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 15.6 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 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: ≥ 1.56 mg/mL (2.88 mM); Clear solution

  此方案可获得 ≥ 1.56 mg/mL (2.88 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 15.6 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。