| 名稱 | Galunisertib |
| 描述 | Galunisertib (LY2157299) is a TGF-β receptor type I (TGF-βRI) inhibitor (IC50=56 nM) that is selective. Galunisertib has antitumor activity and can be used in combination with PD-1 inhibitors. |
| 細胞實驗 | Cell survival was 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 were seeded in 96-well tissue culture plates at a density of 2 × 103 cells/well. After drug exposure, cells were incubated with 0.4 mg/mL MTT for 4 hours at 37°C. After incubation, the supernatant was discarded, insoluble formazan precipitates were dissolved in 0.1 mL of DMSO, and the absorbance was measured at 560 nm by use of a microplate reader. Wells with untreated cells or with drug-containing medium without cells were used as positive and negative controls respectively. For proliferation assay, MTT assay was done daily to determine the number of viable cells in untreated control and galunisertib-treated group [2]. |
| 激酶實驗 | Briefly, the assay was first done at 30°C for 4 h in a 96-well plate containing 2 ng/mL TGF-bR KD, 100 mM Hepes pH 7.5, 4 mM MgCl2, 0.2 mM MnCl2, 0.4 mM sodium orthovanadate, 2 mM DL-dithiothreitol, and 10mM ATP. After incubation, 50mL of Kinase-Glo plus reagent was added and further incubated at 25°C for 30 min. Subsequently, a 100mL aliquot of each reaction mixture was transferred to a black mictotiter plate and the luminescence was measured by a vector counter. The inhibitory activity IC50 was tested in duplicate for each sample [1]. |
| 動物實驗 | Transgenic mice expressing a fusion gene (Alb/TGF) consisting of modified porcine TGF-β1 cDNA under the control of the regulatory elements of the mouse albumin gene (26) were used under animal institute approved protocol. Mice were given LY-2157299 at a dose of 100mg/kg/day in NaCMC/SLS/PVP/antifoam solution by gastric lavage using a curved 14 G needle. Blood counts were analyzed by the Advia machine. Mice femurs were flushed and bone marrows cells were used for clonogenic assays [3]. |
| 體外活性 | 方法: 小鼠胚胎成纖維細胞 NIH3T3 用 Berzosertib (0.0001-10 μM) 處理 2 h，隨后用 TGFβ1 孵育過夜，使用 3H-thymidine proliferation assay 檢測細胞增殖。
結果: Berzosertib 抑制 TGFβ1 誘導的增殖，IC50 為 0.396 μM。[1]
方法: 七種 HCC 細胞系 JHH6、SK-HEP1、SK-Suni、SK-Sora、HepG2、Hep3B、HuH7 用 Galunisertib (1-10 μM) 和 TGF-β (5 ng/mL) 處理 5-24 h，使用 Western Blot 檢測靶點蛋白表達水平。
結果: 添加 Galunisertib 以劑量和時間依賴的方式降低了所有細胞系中 p-Smad2 的表達水平，與 TGF-β 誘導無關。[2] |
| 體內活性 | 方法: 為檢測體內抗腫瘤活性，用 Galunisertib (75 mg/kg，10% beta-cyclodextrin-HCl) 灌胃給藥攜帶 MX1、Calu6 或 4T1 腫瘤的 athymic nu/nu 小鼠，每天兩次，持續(xù) 20-40 天。
結果: Galunisterib 單藥治療都導致了明顯的腫瘤生長延遲。對于MX1，Galunisertib 治療導致腫瘤生長延遲 10.3±4.3天。對于 Calu6，Galunisertib 治療導致腫瘤生長推遲 8.3±2.6天。對于 4T1，Galunisertib 治療導致腫瘤生長延遲 13±2.4天。[1] |
| 存儲條件 | Store at low temperature
Powder: -20°C for 3 years | In solvent: -80°C for 1 year
Shipping with blue ice/Shipping at ambient temperature. |
| 溶解度 | DMSO : 250 mg/mL (676.74 mM), Sonication is recommended.
10% DMSO+40% PEG300+5% Tween 80+45% Saline : 6.9 mg/mL (18.68 mM), Solution.
Ethanol : Insoluble
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| 關鍵字 | TβRI | Transforming growth factor beta receptors | TGF-β/Smad | TGF-β Receptor | TGFβ | TGFbeta/Smad | TGF-beta | TGFbeta | TGF-b/Smad | TGFb | Smad | LY-2157299 | LY 2157299 | Inhibitor | inhibit | Galunisertib |
| 相關產品 | Trimethylamine N-oxide | Demethylzeylasteral | Pirfenidone | Melamine | A 83-01 | Suberic acid | Chromenone 1 | SB-431542 | Cetrimonium bromide | Alantolactone | Fusaric acid | Hydrochlorothiazide |
| 相關庫 | 抑制劑庫 | 抗癌活性化合物庫 | 經典已知活性庫 | 已知活性化合物庫 | 抗結直腸癌化合物庫 | 激酶抑制劑庫 | NO PAINS 化合物庫 | TGF-β/Smad靶點化合物庫 | 膜蛋白靶向化合物庫 | 藥物功能重定位化合物庫 | 抗癌臨床化合物庫 | 抗癌藥物庫 |