Afatinib (BIBW2992)

Afatinib (BIBW2992)は不可逆的にEGF受容体/ HER2含むEGF受容体を抑制、 EGFR L858R , EGFR L858R/T790M と HER2を作用すると、 IC50がそれぞれ0.5 nM, 0.4 nM, 10 nM, 14 nMとなる。

目録号S1011
5 5 3レビュー 20製品表彰状
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Afatinib (BIBW2992) 化学構造
分子量: 485.94

品質と確認

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Quality Control & MSDS

製品情報

  • Compare EGFR Inhibitors
    EGFR阻害剤を比較
  • 研究分野
  • Combination Therapy
    併用療法
  • Afatinib (BIBW2992)のメカニズム

製品の説明

生物活性

情報 Afatinib (BIBW2992)は不可逆的にEGF受容体/ HER2含むEGF受容体を抑制、 EGFR L858R , EGFR L858R/T790M と HER2を作用すると、 IC50がそれぞれ0.5 nM, 0.4 nM, 10 nM, 14 nMとなる。
目標

EGFRwt

EGFRL858R

EGFR L858R/T790M

HER2

IC50

0.5 nM

0.4 nM

10 nM

14 nM [1]

In vitro試験 BIBW2992 shows potent activity against both wild-type and mutant forms of EGFR and HER2. It is similar to Gefitinib in potency against L858R EGFR, but about 100-fold more active against the Gefitinib resistant L858R-T790M EGFR double mutant. BIBW2992 exhibits potent effects on both EGFR and HER2 phosphorylation in vivo. It compares favorably to reference compounds (such as Lapatinib et al.) in all cell types tested, such as human epidermoid carcinoma cell line A431 expressing wt EGFR, murine NIH-3T3 cells transfected with wt HER2, as well as breast cancer cell line BT-474 and gastric cancer cell line NCI-N87, which express endogenous HER2. [1]
In vivo試験 Daily oral administration of BIBW2992 at 20 mg/kg for 25 days results in dramatic tumor regression with a cumulative treated/control tumor volume ratio (T/C ratio) of 2%. Reduced phosphorylation of EGFR and AKT is confirmed by immunohistochemical staining of tissue sections. Therefore, like lapatinib and neratinib, BIBW2992 is a next generation tyrosine kinase inhibitor (TKI) that inhibits human epidermal growth factor receptor 2 (Her2) and epidermal growth factor receptor (EGFR) kinases irreversibly. BIBW2992 is not only active against EGFR mutations targeted by first generation TKIs like Erlotinib or Gefitinib, but also against those insensitive to these standard therapies. [1]
臨床試験 A Phase II clinical trial of BIBW2992 for the treatment of cancer has been terminated.
特集

推薦された実験操作 (公開の文献だけ)

キナーゼアッセイ:

[1]

In vitro kinase activity assays The wild type tyrosine kinase domain of the human EGFR as well as that of the EGFR L858R/T790M double mutant are fused to Glutathione-S-transferase (GST), and extracted. Enzyme activity is then assayed in the presence of the inhibitor BIBW2992, serially diluted in 50% DMSO. A random polymer pEY (4:1) is used as substrate and biotinylated pEY (bio-pEY) is added as a tracer substrate. The kinase domain of HER2 is cloned using the baculovirus system and extracted similarly to that of EGFR kinase. Details of assays for EGFR, HER2, SRC, BIRK and VEGFR2 kinase activity are available in Supplementary information.

細胞アッセイ:

[1]

細胞系 NSCLC cells
濃度 0-10 μM
処理時間 1 hour
方法

1 × 104 NSCLC cells are transferred into each well of a 96-well plate and cultured overnight in serum-free media for the EGFR phosphorylation assay. After addition of BIBW2992 on the next day, the plates are incubated at 37 °C for 1 hour. EGF-stimulation is done using 100 ng/mL for 10 min at room temperature. Cells are washed with ice cold PBS, extracted with 120 μL HEPEX buffer per well and shaken at room temperature for 1 hour. In all 2 × 104 cells per well is used for the HER2 phosphorylation assay. Streptavidin precoated plates are coated with anti-EGFR-biotin at 1:100 dilution in blocking buffer and c-erb2/HER2 oncoprotein Ab-5(Clone N24)-Biotin. Cell extracts is then transferred to the antibody-coated wells and incubated at room temperature for 1 hour. Extinction is measured at 450 nm.

動物実験:

[1]

動物モデル Athymic NMRI-nu/nu female mice
製剤 In 0.5% methocellulose-0.4% polysorbate-80 (Tween 80)
投薬量 20 mg/kg
管理 Oral administration
Solubility 0.5% methylcellulose/0.2% Tween 80 30 mg/mL
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

SpeciesBaboonDogMonkeyRabbitGuinea pigRatHamsterMouse
Weight (kg)121031.80.40.150.080.02
Body Surface Area (m2)0.60.50.240.150.050.0250.020.007
Km factor202012128653
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×  mouse Km(3)  = 11.2 mg/kg
rat Km(6)
1

参考

化学情報

Download Afatinib (BIBW2992) SDF
分子量 485.94
化学式

C24H25ClFN5O3

CAS No. 439081-18-2
保管 2年-20℃
6月-80℃in DMSO
別名
溶解度 (25°C) * In vitro DMSO 97 mg/mL (199.61 mM)
<1 mg/mL (<1 mM)
エタノール 15 mg/mL (30.86 mM)
In vivo 0.5% methylcellulose/0.2% Tween 80 30 mg/mL
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
化学名 (S,E)-N-(4-(3-chloro-4-fluorophenylamino)-7-(tetrahydrofuran-3-yloxy)quinazolin-6-yl)-4-(dimethylamino)but-2-enamide

研究分野

カスタマーレビュー (3)


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Rating
Source Int J Proteomics, 2011, 2011, 215496. Afatinib (BIBW2992) purchased from Selleck
Method CEER assay
Cell Lines H460/A549/RFU cell lines
Concentrations 0-10 μM
Incubation Time 4 h
Results This data showed that a potent dose-dependent inhibition of the HER1 and HER2 pathways in the HCC827 cells was observed by treatment with BIBW-2992. Other HER1 and/or HER2 pathway-activated cell lines, H1975 and H1650, were likewise had these pathway activations blocked by the treatment with BIBW-2992.

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Rating
Source Int J Proteomics, 2011, 2011, 215496. Afatinib (BIBW2992) purchased from Selleck
Method Nikon inverted-phase microscope
Cell Lines lung tumor cell lines
Concentrations 0.1/1 µM
Incubation Time two weeks
Results Reduction of cell colony size formation was observed by the treatment with the irreversible HER1/2 inhibitor BIBW-2992 in H1975 and H1650 cells as seen when these cells were grown in an anchorage-dependent manner.

Click to enlarge
Rating
Source Dr. Zhang of Tianjin Medical University. Afatinib (BIBW2992) purchased from Selleck
Method Western blot
Cell Lines Breast cancer cells
Concentrations 0-1 nM
Incubation Time 3 h
Results BIBW2992 treatment resulted in a reduction of EGFR phosphorylation in Breast cancer cells.

製品表彰状 (20)

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