1. Protein Tyrosine Kinase/RTK
    JAK/STAT Signaling
    Autophagy
  2. EGFR
    Autophagy
  3. Erlotinib

Erlotinib (Synonyms: CP-358774; NSC 718781; OSI-774)

目录号: HY-50896 纯度: 99.99%
产品使用指南

Erlotinib (CP-358774) 是一种直接作用的 EGFR 酪氨酸激酶抑制剂,对人 EGFR 的 IC50 为 2 nM。Erlotinib 可降低完整肿瘤细胞的 EGFR 自磷酸化,IC50 为 20 nM。Erlotinib 用于治疗非小细胞肺癌。

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Erlotinib Chemical Structure

Erlotinib Chemical Structure

CAS No. : 183321-74-6

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Customer Review

Other Forms of Erlotinib:

Top Publications Citing Use of Products

    Erlotinib purchased from MCE. Usage Cited in: Mol Oncol. 2018 Mar;12(3):305-321.

    Western blot analysis of total and phosphorylated EGFR expression in two breast cancer cells pretreated with different concentration Erlotinib for 4h.

    Erlotinib purchased from MCE. Usage Cited in: Oncogene. 2017 May 11;36(19):2643-2654.

    Effects of anti-cancer agents Oxaliplatin (25 mM), Erlotinib (25 mM) and cAMP inducer Forskolin (25 mM) on FOXO3 expression in Panc-1 cells are assessed for 72h (n=3).

    Erlotinib purchased from MCE. Usage Cited in: Anal Chim Acta. 2018 Nov 22;1032:138-146.

    30 min after EGF(100 ng/mL) and EGFP-sSH2(Arg)9 (5 μM) are added into the MDA-MB-468 cell culture medium, Erlotinib is added into the cell culture medium (100 nM), and the picture was collected at 30 min after Erlotinib treatment.

    Erlotinib purchased from MCE. Usage Cited in: Front Pharmacol. 2018 Jun 21;9:660.

    By Western blotting, the α-SMA and palladin proteins are determined in cells that are pretreated with NF-κB (JSH-23), Wnt/β-catenin (XAV939), EGFR (erlotinib), p38 MAPK (TAK-715), and Smad3 (SIS3) inhibitors and are followed by TWEAK stimulation.

    Erlotinib purchased from MCE. Usage Cited in: Cancer Med. 2019 Nov 5. 

    Western blots of proteins expression in EGFR signaling pathways in LN229 and U87 cells with MYST1/GFP overexpression after erlotinib (200 ng/mL)/DMSO treatment.
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    Description

    Erlotinib (CP-358774) is a directly acting EGFR tyrosine kinase inhibitor, with an IC50 of 2 nM for human EGFR. Erlotinib reduces EGFR autophosphorylation in intact tumor cells with an IC50 of 20 nM. Erlotinib is used for the treatment of non-small cell lung cancer[1].

    IC50 & Target[1]

    EGFR

    2 nM (IC50, Cell Free Assay)

    In Vitro

    Erlotinib (CP-358774) is also a potent inhibitor of the recombinant intracellular (kinase) domain of the EGFR, with an IC50 of 1 nM. The proliferation of DiFi cells is strongly inhibited by Erlotinib with an IC50 of 100 nM for an 8-day proliferation assay[1]. The combination of B-DIM and Erlotinib (2 μM) results in a significant inhibition of colony formation in BxPC-3 cells when compared with either agent alone. The combination of B-DIM and Erlotinib (2 μM) results in a significant induction of apoptosis only in BxPC-3 cells when compare with the apoptotic effect of either agent alone[2].

    In Vivo

    Under the experimental conditions, the combination of B-DIM and Erlotinib (50 mg/kg, i.p.) treatment shows significant decrease (P <0.01) in tumor weight compared with untreated control[2]. Erlotinib (20 mg/kg, p.o.) significantly attenuates Cisplatin (CP)-induced body weight (BW) loss when compared to the CP+vehicle (V) rats (P<0.05). Erlotinib treatment significantly improves renal function in CP-N(normal control group, NC) rats. The CP+Erlotinib (E) rats show significant reduction of the levels of Serum creatinine (s-Cr) (P<0.05), blood urea nitrogen (BUN) (P<0.05), urinary N-acetyl-β-D-glucosaminidase (NAG) index (P<0.05), and significant increase of urine volume (UV) (P<0.05) and Cr clearance (Ccr) (P<0.05) compare to the CP+V rats[3]

    Clinical Trial
    Molecular Weight

    393.44

    Formula

    C₂₂H₂₃N₃O₄

    CAS No.

    183321-74-6

    SMILES

    C#CC1=CC=CC(NC2=NC=NC3=C2C=C(C(OCCOC)=C3)OCCOC)=C1

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage
    Powder -20°C 3 years
      4°C 2 years
    In solvent -80°C 6 months
      -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 50 mg/mL (127.08 mM)

    H2O : < 0.1 mg/mL (insoluble)

    * "≥" means soluble, but saturation unknown.

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.5417 mL 12.7084 mL 25.4168 mL
    5 mM 0.5083 mL 2.5417 mL 5.0834 mL
    10 mM 0.2542 mL 1.2708 mL 2.5417 mL
    *

    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。

    In Vivo:

    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: 0.5% CMC-Na/saline water

      Solubility: 10 mg/mL (25.42 mM); Suspended solution; Need ultrasonic

    • 2.

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

      Solubility: ≥ 2 mg/mL (5.08 mM); Clear solution

      此方案可获得 ≥ 2 mg/mL (5.08 mM,饱和度未知) 的澄清溶液。

      以 1 mL 工作液为例,取 100 μL 20.0 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,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: 2.5 mg/mL (6.35 mM); Suspended solution; Need ultrasonic

      此方案可获得 2.5 mg/mL (6.35 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 25.0 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: ≥ 2.5 mg/mL (6.35 mM); Clear solution

      此方案可获得 ≥ 2.5 mg/mL (6.35 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 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

    • 5.

      请依序添加每种溶剂: 50% PEG300    50% saline

      Solubility: 10 mg/mL (25.42 mM); Suspended solution; Need ultrasonic

    *以上所有助溶剂都可在 MCE 网站选购。
    References
    Kinase Assay
    [1]

    The kinase reaction is performed in 50 μL of 50 mM HEPES (pH 7.3), containing 125 mM NaCl, 24 mM MgCl2, 0.1 mM Na3VO4, 20 μM ATP, 1.6 μg/mL EGF, and 15 ng of EGFR, affinity purified from A431 cell membranes. The compound in DMSO is added to give a final DMSO concentration of 2.5%. Phosphorylation is initiated by addition of ATP and proceeded for 8 mm at room temperature, with constant shaking. The kinase reaction is terminated by aspiration of the reaction mixture and is washed 4 times with wash buffer. Phosphorylated PGT is measured by 25 mim 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 wash buffer. The colonmetric signal is developed by addition of TMB Microwell Peroxidase Substrate, 50 μL per well, and stopped by the addition of 0.09 M sulfuric acid, 50μL 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 POT and is proportional to the time of incubation for 10 mm[1].

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

    Cell Assay
    [2]

    To test the viability of cells treated with B-DIM, Erlotinib, or the combination, BxPC-3 and MIAPaCa cells are plated (3,000-5,000 per well) in a 96-well plate and incubated overnight at 37°C. A range of concentrations for both B-DIM (10-50 µM) and Erlotinib (1-5 µM) is initially tested. Based on the initial results, the concentration of B-DIM (20 µM) and Erlotinib (2 µM) are chosen for all assays. The effects of B-DIM (20 µM), Erlotinib (2 µM), and the combination on BxPC-3 and MIAPaCa cells are determined by the standard MTT assay after 72 h and is repeated three times. The color intensity is measured by a Tecan microplate fluorometer at 595 nm. DMSO-treated cells are considered to be the untreated control and assigned a value of 100%. In addition to the above assay, we have also done clonogenic assay for assessing the effects of treatment[2].

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

    Animal Administration
    [2][3]

    Mice[2]
    Female ICR-SCID (6-7 weeks old) mice are randomized into the following treatment groups (n=7): (a) untreated control; (b) only B-DIM (50 mg/kg body weight), intragastric once every day; (c) Erlotinib (50 mg/kg body weight), everyday i.p. for 15 days; and (d) B-DIM and Erlotinib, following schedule as for individual treatments. All mice are killed on day 3 following last dose of treatment, and their body weight is determined. One part of the tissue is rapidly frozen in liquid nitrogen and stored at −70°C for future use and the other part is fixed in formalin and processed for paraffin block. H&E staining of fixed tissue section is used to confirm the presence of tumor(s) in each pancreas.
    Rats[3]
    Six-week-old male Sprague-Dawley (SD) rats weighing 180 to 210 g are used. Cisplatin (CP) is freshly prepared in saline at a concentration of 1 mg/mL and then injected intraperitoneally in SD rats (n=28) at a dose of 7 mg/kg on day 0. To investigate the effect of Erlotinib, 28 CP-N rats are divided into two groups. Separate groups (n=14) each of animals are administered with either Erlotinib (20 mg/kg) (CP+E, n=14) or vehicle (CP+V, n=14) daily by oral gavage from day -1 (24 hours prior to the CP injection) to day 3. Vehicle-treated groups receive an equivalent volume of saline. Five male SD rats at the age of 6 weeks are used as a normal control group (NC, n=5). The NC rats are given an equivalent volume of saline daily by oral gavage from day -1 to day 3. At day 4 (96 hours after CP injection), each rat is anesthetized and sacrificed by exsanguination after the cardiac puncture; blood is collected by cardiac puncture and kidneys are collected. Renal tissue is divided; separate portions are snap-frozen in liquid nitrogen or fixed in 2% paraformaldehyde/phosphate-buffered saline (PBS) for later use. All surgery is performed under diethyl ether gas anesthesia, and all efforts are made to minimize suffering.

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

    References

    Purity: 99.99%

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    Keywords:

    ErlotinibCP-358774NSC 718781OSI-774CP358774CP 358774NSC718781NSC-718781OSI774OSI 774EGFRAutophagyEpidermal growth factor receptorErbB-1HER1directlyactingautophosphorylationintacttumornon-smallcelllungcancerInhibitorinhibitorinhibit

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