Cobimetinib (Synonyms: GDC-0973, RG-7420, XL518) |
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カタログ番号GC10033
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Cobimetinibは有力で選択的なMEK1の阻害剤であり、IC50値は0.9nMである。
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Cas No.: 934660-93-2
Sample solution is provided at 25 µL, 10mM.
Cobimetinibは有力で選択的なMEK1の阻害剤であり、IC50値は0.9nMである[1]。Cobimetinibはリン酸化のERKの活性を減らし、小胞体ストレス応答を起こし、細胞死を促進できる[2]。Cobimetinibは異種移植腫瘍モデルに広く使われ、腫瘍の成長を阻害してきている[3]。
体外で、96時間のCobimetinibの処理は、LS174T、RW7213とRW2982細胞の生存率を著しく阻害し、IC50値はそれぞれ0.28μM、0.23μMと0.44μMであった[4]。1µM CobimetinibでHCT116細胞を24時間処理した結果、サイクリンD1とサイクリンEの発見レベルを減らし、p21の発見レベルを増やし、G1期停止を誘発した[5]。1µM CobimetinibでIMR-32細胞を24時間処理した結果、PARP切断と細胞アポトーシスを誘発した[6]。
体内で、1mg/kg/日のCobimetinibを21日間連続経口投与した結果、肝細胞癌異種移植マウスモデルで、腫瘍成長、腫瘍の血管新生、ERKシグナルの伝達を著しく阻害した[7]。Cobimetinib (10mg/kg/日;経口投与)とvenetoclax (100mg/kg/日;経口投与)を併用して28日間連続的に投与した結果、急性骨髄白血病のマウスモデルで、白血病の負担量を減らし、マウスの生存期間を延ばせる[8]。
References:
[1] Rice K D, Aay N, Anand N K, et al. Novel carboxamide-based allosteric MEK inhibitors: discovery and optimization efforts toward XL518 (GDC-0973)[J]. ACS medicinal chemistry letters, 2012, 3(5): 416-421.
[2] Corazao-Rozas P, Guerreschi P, André F, et al. Mitochondrial oxidative phosphorylation controls cancer cell's life and death decisions upon exposure to MAPK inhibitors[J]. Oncotarget, 2016, 7(26): 39473.
[3] Choo E F, Ng C M, Berry L, et al. PK-PD modeling of combination efficacy effect from administration of the MEK inhibitor GDC-0973 and PI3K inhibitor GDC-0941 in A2058 xenografts[J]. Cancer chemotherapy and pharmacology, 2013, 71(1): 133-143.
[4] Kuracha M R, Thomas P, Loggie B W, et al. Bilateral blockade of MEK-and PI3K-mediated pathways downstream of mutant KRAS as a treatment approach for peritoneal mucinous malignancies[J]. PLoS One, 2017, 12(6): e0179510.
[5] Gong S, Xu D, Zhu J, et al. Efficacy of the MEK inhibitor cobimetinib and its potential application to colorectal cancer cells[J]. Cellular Physiology and Biochemistry, 2018, 47(2): 680-693.
[6] Singh A, Ruan Y, Tippett T, et al. Targeted inhibition of MEK1 by cobimetinib leads to differentiation and apoptosis in neuroblastoma cells[J]. Journal of Experimental & Clinical Cancer Research, 2015, 34(1): 104.
[7] Tong X, Wang Q, Wu D, et al. MEK inhibition by cobimetinib suppresses hepatocellular carcinoma and angiogenesis in vitro and in vivo[J]. Biochemical and Biophysical Research Communications, 2020, 523(1): 147-152.
[8] Han L, Zhang Q, Dail M, et al. Concomitant targeting of BCL2 with venetoclax and MAPK signaling with cobimetinib in acute myeloid leukemia models[J]. Haematologica, 2019, 105(3): 697.
| 細胞実験[1]: | |
細胞株 | RKO細胞 |
準備方法 | 10% (v/v)の100U/ml ペニシリンと100µg/mlのストレプトマイシンを添加した高グルコースのDulbecco修飾Eagle培地でRKO細胞を培養した。続いて、細胞を37°C、5% CO2の湿潤インキュベートに播種した。トリプシン消化後、RKO細胞を8000個の細胞/ウェルの密度で96ウェルのプレートに播種した。一晩中のインキュベート後、細胞を様々な濃度のCobimetinib (0.05、0.1、0.2、0.4、0.6、0.8と1.0µM)で48時間処理し、DMSO (0.1%)処理群を対照群とした。続いて、10μlのMTT溶液(5mg/ml)を各ウェルに添加し、4時間インキュベートした。その後、100μlのDMSOを使い、上清の代わりに不溶性メチレンブルー結晶を溶解した。最終的に、吸光度を490nmまたは570nmで測定した。 |
反応条件 | 0.05、0.1、0.2、0.4、0.6、0.8と1.0µM;48時間 |
アプリケーション | CobimetinibはRKO細胞の生存率を用量依存的に著しく阻害した。 |
| 動物実験 [2]: | |
動物モデル | SCIDマウス |
準備方法 | 100μlのPBSで、5×107個のHep3B-r細胞を6週齢のSCIDマウスの側腹部に皮下注射した。腫瘍の体積が約200mm3 (n=5)に達した時、マウスには1mg/kg/日のCobimetinibを経口投与した。マウスの体重と腫瘍のサイズを毎日二回監視した。腫瘍の長さと幅をノギスで測定し、体積を式(長さ×幅2× 0.5236)で算出した。21日間のCobimetinibの処理後、マウスを安楽死させ、腫瘍を単離して分析を行った。 |
投与形態 | 1mg/kg/日、21日間;経口投与 |
アプリケーション | Cobimetinibの処理は、マウスでHep3B-r腫瘍の成長を遅延させ、血管新生を阻害した。 |
References: | |
| Cas No. | 934660-93-2 | SDF | |
| 同義語 | GDC-0973, RG-7420, XL518 | ||
| Chemical Name | [3,4-difluoro-2-(2-fluoro-4-iodoanilino)phenyl]-[3-hydroxy-3-[(2S)-piperidin-2-yl]azetidin-1-yl]methanone | ||
| Canonical SMILES | C1CCNC(C1)C2(CN(C2)C(=O)C3=C(C(=C(C=C3)F)F)NC4=C(C=C(C=C4)I)F)O | ||
| Formula | C21H21F3IN3O2 | M.Wt | 531.31 |
| 溶解度 | ≥ 26.55 mg/mL in DMSO, ≥ 33.53 mg/mL in EtOH with gentle warming | Storage | Store at RT |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.8821 mL | 9.4107 mL | 18.8214 mL |
| 5 mM | 376.4 μL | 1.8821 mL | 3.7643 mL |
| 10 mM | 188.2 μL | 941.1 μL | 1.8821 mL |
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Quality Control & SDS
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- Purity: >99.50% Appearance: A solid
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Average Rating: 5 (Based on Reviews and 30 reference(s) in Google Scholar.)















