Erlotinib
製品コードS7786 別名：CP358774, NSC 718781
分子量(MW)：393.44
Erlotinib is an EGFR inhibitor with IC50 of 2 nM, >1000-fold more sensitive for EGFR than human c-Src or v-Abl.
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カスタマーフィードバック(17)
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Erlotinib IC50 in HCC827 cell lines measured 48h after treatment with vehicle (control) or with erlotinib. Erlotinib IC50 is shown in parentheses. Data are representative of 3 independent experiments. Effects of treatment for 48h with a vehicle or the indicated doses of MP-470 in parental or ER1 and ER2 cell lines in the absence and presence of erlotinib on the indicated biomarkers.
Nat Genet 2012 44(8):852-60. Erlotinib purchased from Selleck.
J Clin Invest 2012 122, 3197-210. Erlotinib purchased from Selleck.
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Effects of combined treatment with erlotinib and NPS-1034 in HCC827/ER cells with AXL activation. Lysates were immunoprecipitated with an anti-AXL antibody and immunoblotted with antibodies for phosphotyrosine (p-Tyr) and AXL. HCC827/ER cells were treated with erlotinib. E, erlotinib; N, NPS-1034. **, P < 0.001 for the combination of erlotinib plus NPS-1034 versus either the control or drug alone.
Cancer Res 2014 4(1):253-62. Erlotinib purchased from Selleck.
(a&b) EGFR protein expression levels in 4T1, CT26 or SCC7 tumors with or without erlotinib treatment analyzed byWestern blotting (a) and the corresponding semi-quantitative results (b). (c) VEGF levels in different tumors measured by ELISA.
Biomaterials, 2017, 148:69-80. Erlotinib purchased from Selleck.
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Immunoblots of MCF7-HER2 cells treated with DMSO (c), BEZ235 (B, 500 nM) and lapatinib (L, 500 nM) as well as with erlotinib (E, 500 nM) and the indicated combinations for 24 h.
Oncogene 2010 30, 2547-2557. Erlotinib purchased from Selleck.
LNCaP-AI cells were starved in 1% stripped medium for 24 h. The cells were then treated with Erlotinib (20 μM), Gefitinib (20 μM), Lapatinib (20 μM), CI-1033 (8 μM), LY294002 (20 μM) and Bortezomib (20 μM) for 24 h. Cell culture medium was collected from each sample and subjected to ELISA for sPLA2-IIa. The condition medium samples were diluted 10 times for ELISA. Average of duplicate samples was converted to nanogram per milliliter against standard curve. The data represent one of five repeated experiments.
Carcinogenesis 2010 31, 1948–1955. Erlotinib purchased from Selleck.
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(B–C) LNCaP (B) and LNCaP-AI (C) cells were transiently transfected with sPLA2-IIa(-800)-Luc (0.5 μg). The cells were then treated with Erlotinib (20 μM), Gefitinib (20 μM), Lapatinib (20 μM), CI-1033 (8 μM), LY294002 (20 μM) and Bortezomib (20 μM) without or with EGF (100 ng/ml) for 24 h. Luciferase assay was performed according to a standard protocol with Renilla luciferase as an internal control. Data are presented as the mean (±SD) of duplicate values of a representative experiment that was independently repeated for five times.
Carcinogenesis 2010 31, 1948–1955. Erlotinib purchased from Selleck.
Susceptibility of lung cancer cells to cytolytic activity of NK-92 cells after treatment with EGFR inhibitors. Three lung cancer cells were untreated (open circle) or treated with 10 μM erlotinib or gefitinib (black filled square or black filled triangle) for 24 hours. The lung cancer cells were cocultured with NK-92 cells at indicated effector to target ratio (E:T ratio). To determine the specificity of NKG2D-mediated cytolysis of lung cancer cells, NK-92 cells were preincubated with blocking mAb against NKG2D before the assay (gray filled square and triangle) and correspond-ing isotype mAb (open square and triangle).
J Immunother 2011 34, 372-81. Erlotinib purchased from Selleck.
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The TMZ-induced caveolin-1 modulation is Src-dependent in Hs683 GBM cells Western blot analyses of soluble caveolin-1 expression in Hs683 glioma cells treated with TMZ (100 μM) four times per week (day 1-4) for 7 h/d, the EGFR inhibitor (10 μM) (erlotinib; day 1), the Src inhibitor AZD0530 (10 μM) (day 1), and combination of the inhibitors and TMZ (+TMZ) compared with control untreated cells (Ct). Soluble caveolin-1 expression was measured on day 5.
Transl Oncol 2011 4, 92-100. Erlotinib purchased from Selleck.
Pressure-induced myogenic tone in coronary arterioles with and without EGFR tyrosine kinase inhibitors (AG1478 and Erlotinib, 1 μM) n=6, *Pb0.05 CTR vs. EGFR inhibitor
Microvasc Res 2010 81, 135-142. Erlotinib purchased from Selleck.
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DUSP6 is regulated by EGFR/ERK inhibition in NSCLC cell lines. Protein expression levels were assayed by immunoblot for phosphor-EGFR at indicated tyrosine sites, total-EGFR, phosphor-ERK, total-ERK, ETS1, DUSP6 and GAPDH demonstrating suppression of DUSP6 following inhibition of activated ERK (P-ERK) and ETS1 levels in the presence of appropriate drug for each of the following cell lines: (a) HCC827 cells treated with erlotinib; (b) H1975 cells treated with erlotinib or CL-387,785 (an irreversible EGFR inhibitor); H441 cells treated with (c) erlotinib or U0126 (a MEK1/2 inhibitor) and (d) erlotinib or AG1478 (specific EGFR inhibitor) (d). Cells were starved overnight with serum-free media, then treated with drug as indicated by the following abbreviations: (E) 100ng/ml EGF; (D) 0.01% DMSO control; (Er) 1 μM erlotinib, (CL) 1 μM CL-387,785, (U) 20 μM U0126 or AG1478. Whole cell lysates were obtained using 10% TCA lysis buffer and immunoblotting was performed at indicated time points.
2010 Dr. Balazs Halmos of Columbia University. Erlotinib purchased from Selleck.
DUSP6 gene expression is inhibited by erlotinib using quantitative real-time PCR analysis. RNA was extracted from treated (a) HCC827 and (b) PC9 cells and relative expression level standardized against GAPDH at several time points.
2010 Dr. Balazs Halmos of Columbia University. Erlotinib purchased from Selleck.
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Breast cancer cells were pretreated with 100ng/ml EGF for 15 min and then treated with the indicated concentrations of Erlotinib for 24 hours.
2010 Dr. Zhang of Tianjin Medical University. Erlotinib purchased from Selleck.
Inhibition of anchorage-independent growth of lung tumor cell lines by selected inhibitors. Each selected cell line was treated with the indicated inhibitor at 0.1 μM and 1 μM concentrations for two weeks and cell colony size formation was scored under the Nikon inverted-phase microscope.
Int J Proteomics 2011 215496. Erlotinib purchased from Selleck.
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Erlotinib and picropodophyllin (PPP) act together to reduce cell proliferation. MET1 cells were cultured for 48 hours in increasing concentrations of erlotinib (A) or PPP (B) as indicated. Cell growth was then assessed using methyl thiazolyl-tetrazolium (MTT) assays. A dose-dependent decrease in the number of viable cells is seen with rising inhibitor concentrations (n = 3 at all time points). MET1 cells (C), MET4 cells (D), SCC12 cells (E), and SCC13 cells (F) were cultured for 48 hours in varying concentrations of erlotinib and PPP as indicated. Cell growth was then assayed with MTT assays. Both erlotinib and PPP demonstrated dose-dependent inhibition of cell growth, and at intermediate concentrations there seemed to be synergistic prevention of cell growth by both inhibitors. Higher concentrations of all inhibitors were also tested but are not shown as they exceeded the maximal responses of the cells to the inhibitors.
Head Neck 2013 35, 86-93. Erlotinib purchased from Selleck.
Tuberc Respir Dis 2013 75(1), 9-17. Erlotinib purchased from Selleck.
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Inhibition rate was tested at different intervals with the lower 48-h IC50 of the pair of stably transfected cell lines. The error bars represent mean ± SE of three independent experiments. *P < 0.05
Biochem Biophys Res Commun, 2018, 495(1):733-739. Erlotinib purchased from Selleck.
製品安全説明書
EGFR阻害剤の選択性比較
生物活性
| 製品説明 | Erlotinib is an EGFR inhibitor with IC50 of 2 nM, >1000-fold more sensitive for EGFR than human c-Src or v-Abl. | |||||||||||||||||||||||
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| ターゲット |
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| 体外試験 |
Erlotinib HCl potently inhibits EGFR activation in intact cells including HNS human head and neck tumor cells (IC50 20nM), DiFi human colon cancer cells and MDA MB-468 human breast cancer cells. Erlotinib HCl (1 μM) induces apoptosis in DiFi human colon cancer cells. [1] Erlotinib inhibits growth of a panel of NSCLC cell lines including A549, H322, H3255, H358 H661, H1650, H1975, H1299, H596 with IC50 ranging from 29 nM to >20 μM. [2] Erlotinib HCl(2 μM) significantly inhibits growth of AsPC-1 and BxPC-3 pancreatic cells. [3] The effects of Erlotinib HCl in combination with gemcitabine are considered additive in KRAS-mutated pancreatic cancer cells. Ten micromolar of Erlotinib HCl inhibits EGFR phospho-rylation at the Y845 (Src-dependent phosphorylation) and Y1068 (auto-phosphorylation) sites. [4] Combination with Erlotinib HCl could down-modulate rapamycin-stimulated Akt activity and produces a synergistic effect on cell growth inhibition. [5] |
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| 体内試験 | At doses of 100 mg/kg, Erlotinib HCl completely prevents EGF-induced autophosphorylation of EGFR in human HN5 tumors growing as xenografts in athymic mice and of the hepatic EGFR of the treated mice. [1] Erlotinib HCl (100 mg/Kg) inhibits H460a and A549 tumor models with 71 and 93% inhibition rate. [5] |
お薦めの試験操作（参考用のみ）
| キナーゼ試験： |
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Kinase assays: 96-well plates are coated by incubation overnight at 37 °C with 100 μL per well of 0.25 mg/mL PGT in PBS. Excess PGT is removed by aspiration, and the plate is washed 3 times with washing buffer (0.1% Tween 20 in PBS). The kinase reaction is performed in 50 μL of 50 mM HEPES (pH 7.3), containing 125 mM sodium chloride, 24 mM magnesium chloride, 0.1 mM sodium orthovanadate, 20 μM ATP, 1.6 μg/mL EGF, and 15 ng of EGFR, affinity purified from A431 cell membranes. Erlotinib HCl in DMSO is added to give a final DMSO concentration of 2.5%. Phosphorylation is initiated by addition of ATP and proceeded for 8 minutes at room temperature, with constant shaking. The kinase reaction is terminated by aspiration of the reaction mixture and is washed 4 times with washing buffer. Phosphorylated PGT is measured by 25 minutes of incubation with 50 μL per well HRP-conjugated PY54 antiphosphotyrosine antibody, diluted to 0.2 μg/mL in blocking buffer (3% BSA and 0.05% Tween 20 in PBS). Antibody is removed by aspiration, and the plate is washed 4 times with washing buffer. The colorimetric signal is developed by addition of TMB Microwell Peroxidase Substrate, 50μL per well, and stopped by the addition of 0.09 M sulfuric acid, 50 μL per well. Phosphotyrosine is estimated by measurement of absorbance at 450 nm. The signal for controls is typically 0.6-1.2 absorbance units, with essentially no back ground in wells without AlP, EGFR, or PGT and is proportional to the time of incubation for 10 minutes. |
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| 細胞試験： |
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溶解度 (25°C)
| 体外 | DMSO | 78 mg/mL (198.25 mM) |
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| Ethanol | 15 mg/mL warmed (38.12 mM) | |
| Water | Insoluble | |
| 体内 |
左から（NMPから）右の順に溶剤を製品に加えます(文献ではなく、Selleckの実験によるデータ): 5% DMSO+30% PEG 300+5% Tween 80+ddH2O 混合させたのち直ちに使用することを推奨します。 |
6mg/mL |
* 溶解度測定はSelleck技術部門によって行われており、その他文献に示されている溶解度と差異がある可能性がありますが、同一ロットの生産工程で起きる正常な現象ですからご安心ください。
化学情報
| 分子量 | 393.44 |
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| 化学式 | C22H23N3O4 |
| CAS No. | 183321-74-6 |
| 保管 | 粉 |
| in solvent | |
| 別名 | CP358774, NSC 718781 |
便利ツール
モル濃度計算器
求めたい質量、体積または濃度を計算してください。
質量 (g) = 濃度 (mol/L) x 体積 (L) x 分子量 (g/mol)
モル濃度計算器方程式
*貯蔵液を準備するとき、常に、オンであるとわかる製品のバッチに特有の分子量を使って、を通してラベルとMSDS/COA（製品ページで利用可能な）。
希釈計算器
貯蔵液を準備するために必要な希釈率を計算してください。Selleck希釈計算器は、以下の方程式に基づきます：
開始濃度 x 開始体積 = 最終濃度 x 最終体積
希釈の計算式
この方程式は、一般に略語を使われます：C1V1 = C2V2 ( 入力 出力 )
常に貯蔵液を準備するとき、小びんラベルとMSDS/COA（オンラインで利用できる）で見つかる製品のバッチに特有の分子量を使ってください。
分子量计算器
そのモル質量と元素組成を計算するために、合成物の化学式を入力してください：
チップス: 化学式は大文字と小文字の区別ができます。C10H16N2O2 c10h16n2o2
モル濃度計算器
臨床試験
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
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| NCT03720873 | Recruiting | EGFR Gene Mutation | Fujian Cancer Hospital | October 2018 | Phase 2 |
| NCT03653546 | Not yet recruiting | Non-small Cell Lung Cancer|EGFR Gene Mutation|Brain Metastases | Alpha Biopharma (Jiangsu) Co. Ltd. | August 31 2018 | Phase 2|Phase 3 |
| NCT03529084 | Withdrawn | Carcinoma Non-small Cell Lung | Novartis Pharmaceuticals|Novartis | July 23 2018 | Phase 3 |
| NCT03628521 | Recruiting | Lung Cancer|Advanced Stage | Shanghai Chest Hospital | July 20 2018 | Phase 1 |
| NCT03498521 | Recruiting | Cancer of Unknown Primary Site | Hoffmann-La Roche|Foundation Medicine Inc. | July 10 2018 | Phase 2 |
| NCT03647592 | Recruiting | Efficacy and Safety of Erlotinib Combined With Bevacizumab in EGFR Mutation Positive Advanced Non-squamous Non-small Cell Lung Cancer | Hunan Province Tumor Hospital | June 1 2018 | -- |
技術サポート
ストックの作り方、阻害剤の保管方法、細胞実験や動物実験の際に注意すべき点など、製品を取扱う時に問い合わせが多かった質問に対しては取扱説明書でお答えしています。
他に質問がある場合は、お気軽にお問い合わせください。
よくある質問（FAQ）
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質問1：
Can you please give me some advice for which solvent we should use to dissolve it for animal studies?
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回答：
For in vivo application, we recommend to use 5% DMSO+45% PEG 300+ddH2O up to 6mg/ml.
