GSK126 (GSK2816126A) is a potent, highly selective inhibitor ofEZH2methyltransferasewith anIC₅₀of 9.9 nM^[1].

GSK126 potently inhibits both wild-type and mutant EZH2 methyltransferase activity with similar potencies (K_i=0.5-3 nM) independent of substrate used, and is competitive with S-adenosyl-methionine (SAM) and non-competitive with peptide substrates. GSK126 is highly selective against other methyltransferases and multiple other protein classes (EZH1, IC₅₀=680 nM)^[1]. Treatment of three SCLC cell lines with GSK126, induces growth inhibition. SCLC cell lines (Lu130, H209, and DMS53) are treated with 0.5, 2, and 8 μM GSK126, and growth curve is analyzed by WST-8 assay. Inhibition of cellular growth by GSK126 treatment is observed at 8 μM in all the three cell lines, while Lu130 and H209 are more sensitive to GSK126, even at lower doses^[2].

GSK126 is administered intraperitoneally at a dose volume of 0.2 mL per 20 g body weight in female beige SCID mice. GSK126 effectively inhibits the proliferation of EZH2 mutant DLBCL cell lines and markedly inhibits the growth of EZH2 mutant DLBCL xenografts in mice^[1].

526.67

Solid

C₃₁H₃₈N₆O₂

1346574-57-9

Room temperature in continental US; may vary elsewhere.

DMSO : 12.5 mg/mL(23.73 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℃, 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： 20%SBE-β-CDadjusted to pH 4-4.5 with 1 N acetic

  Solubility: 20 mg/mL (37.97 mM); Clear solution; Need ultrasonic and warming
• 2.

  请依序添加每种溶剂： 50%PEG300   50% saline

  Solubility: 10 mg/mL (18.99 mM); Suspended solution; Need ultrasonic
• 3.

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

  Solubility: ≥ 1.25 mg/mL (2.37 mM); Clear solution

  此方案可获得 ≥ 1.25 mg/mL (2.37 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 12.5 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
• 4.

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

  Solubility: 1.25 mg/mL (2.37 mM); Suspended solution; Need ultrasonic

  此方案可获得 1.25 mg/mL (2.37 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 12.5 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
• 5.

  请依序添加每种溶剂： 10% DMSO    90%corn oil

  Solubility: ≥ 1.25 mg/mL (2.37 mM); Clear solution

  此方案可获得 ≥ 1.25 mg/mL (2.37 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 12.5 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• 6.

  请依序添加每种溶剂： 5% DMSO    40%PEG300   5%Tween-80   50% saline

  Solubility: ≥ 0.82 mg/mL (1.56 mM); Clear solution
• 7.

  请依序添加每种溶剂： 5% DMSO    95% (20%SBE-β-CDin saline)

  Solubility: ≥ 0.82 mg/mL (1.56 mM); Clear solution