Galunisertib (LY2157299) is an oral and selective TGF-β receptor type I (TGF-βRI) kinase inhibitor with an IC₅₀ of 56 nM.

IC50: 56 nM (TGF-βRI)^[4]

Galunisertib (LY2157299) (0.1, 1, 10, and 100 μM) displays a slight dose-dependent potentiation of Bay 43-9006 in SK-Sora, HepG2, and Hep3B cell lines but not in JHH6, SK-HEP1, and HuH7 cell lines^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Human xenografts Calu6 (non-small cell lung cancer) and MX1 (breast cancer) are implanted subcutaneously in nude mice. After oral administration of 75 mg/kg, Galunisertib (LY2157299) induces a 70% decrease in pSmad for both types of cell lines. The time at which pSmad recovered 80% of baseline is approximately 6 h after administration^[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

369.42

C₂₂H₁₉N₅O

700874-72-2

Room temperature in continental US; may vary elsewhere.

DMSO : 100 mg/mL (270.69 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： 5% DMSO    40% PEG300    5% Tween-80    50% saline

  Solubility: ≥ 5.75 mg/mL (15.56 mM); Clear solution
• 2.

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

  Solubility: ≥ 2.08 mg/mL (5.63 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (5.63 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 (5.63 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (5.63 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 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 (5.63 mM); Clear solution

  此方案可获得 ≥ 2.08 mg/mL (5.63 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]. Cong L, et al. Targeting the TGF-β receptor with kinase inhibitors for scleroderma therapy. Arch Pharm (Weinheim). 2014 Sep;347(9):609-15.

  [2]. Serova M, et al. Effects of TGF-beta signalling inhibition with galunisertib (LY2157299) in hepatocellular carcinoma models and in ex vivo whole tumor tissue samples from patients. Oncotarget. 2015 Aug 28;6(25):21614-27

  [3]. Bueno L, et al. Semi-mechanistic modelling of the tumour growth inhibitory effects of LY2157299, a new type I receptor TGF-beta kinase antagonist, in mice. Eur J Cancer. 2008 Jan;44(1):142-50.

  [4]. Herbertz S, et al. Clinical development of galunisertib (LY2157299 monohydrate), a small molecule inhibitor of transforming growth factor-beta signaling pathway. Drug Des Devel Ther. 2015 Aug 10;9:4479-99.

Cell survival is determined using the MTT assay. The conversion of yellow water-soluble tetrazolium MTT into purple insoluble formazan is catalyzed by mitochondrial dehydrogenases and used to estimate the number of viable cells. In brief, cells are seeded in 96-well tissue culture plates at a density of 2×10³ cells/well. After drug exposure, cells are incubated with 0.4 mg/mL MTT for 4 hours at 37°C. After incubation, the supernatant is discarded, insoluble formazan precipitates are dissolved in 0.1 mL of DMSO, and the absorbance is measured at 560 nm by use of a microplate reader. Wells with untreated cells or with drug-containing medium without cells are used as positive and negative controls respectively. For proliferation assay, MTT assay is done daily to determine the number of viable cells in untreated control andGalunisertib (LY2157299) (0.1, 1, 10, and 10 μM)-treated group^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Mice^[3]
Charles River nude mice (weight 25 mg) are used. Galunisertib (LY2157299) is given orally as a single dose or in a multiple dosing design. The value of the dose levels given in a single dose manner is 10 (n=3), 30 (n=8), 50 (n=26), 75 (n=69), 100 (n=3), 150 (n=21) and 300 (n=3) mg/kg. Animals are sacrificed at the following times: 0.5, 1, 1.5, 2, 4, 8 and 16 h after administration, then the tumor is removed and blood is recovered. In the multiple dosing study, Galunisertib (LY2157299) is administered twice a day (bid) at the dose of 75 mg/kg every 12 h for 20 consecutive days to 31 mice. Animals are sacrificed at 2 h after the last administration at days 10, 15, 20 and 25, and the tumor is removed for pSmad determination and the blood is recovered for determination of drug levels in plasma.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Cong L, et al. Targeting the TGF-β receptor with kinase inhibitors for scleroderma therapy. Arch Pharm (Weinheim). 2014 Sep;347(9):609-15.

  [2]. Serova M, et al. Effects of TGF-beta signalling inhibition with galunisertib (LY2157299) in hepatocellular carcinoma models and in ex vivo whole tumor tissue samples from patients. Oncotarget. 2015 Aug 28;6(25):21614-27

  [3]. Bueno L, et al. Semi-mechanistic modelling of the tumour growth inhibitory effects of LY2157299, a new type I receptor TGF-beta kinase antagonist, in mice. Eur J Cancer. 2008 Jan;44(1):142-50.

  [4]. Herbertz S, et al. Clinical development of galunisertib (LY2157299 monohydrate), a small molecule inhibitor of transforming growth factor-beta signaling pathway. Drug Des Devel Ther. 2015 Aug 10;9:4479-99.