EAI045

製品コードS8242 バッチS824203

印刷

化学情報

Synonyms

N/A

Storage
(From the date of receipt)

3 years -20°C powder
1 years -80°C in solvent

化学式

C₁₉H₁₄FN₃O₃S

分子量

383.40

CAS No.

1942114-09-1

Solubility (25°C)*

体外

DMSO

76 mg/mL (198.22 mM)

Water

Insoluble

Ethanol

Insoluble

体内（毎回新しく調製した物を用意してください）

Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O この製剤はselleckのラボで検証済みです。上記の溶解方法がご要望を満たさない場合、selleckの営業担当までお問い合わせ頂ければ、個別の試験を行います。	3.800mg/ml (9.91mM)	Taking the 1 mL working solution as an example, add 50 μL of 76 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil この製剤はselleckのラボで検証済みです。上記の溶解方法がご要望を満たさない場合、selleckの営業担当までお問い合わせ頂ければ、個別の試験を行います。	0.470mg/ml (1.23mM)	Taking the 1 mL working solution as an example, add 50 μL of 9.4 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

* <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.

溶剤液（一定の濃度）を調合する

生物活性

製品説明	EAI045 is an allosteric inhibitor that targets selected drug-resistant EGFR mutants but spares the wild-type receptor.
in vitro	EAI045 potently inhibits EGFR Y1173 phosphorylation in H1975 cells (half maximal effective concentration (EC50)=2nM), but not in HaCaT cells, a keratinocyte cell line with wild-type EGFR. Despite potent inhibition of mutant EGFR, this compound shows no anti-proliferative effect in the H1975 and H3255 cell lines with concentrations as high as 10μM^[1]. It inhibits L858R/T790M mutant with an IC50 of 3 nM. However, this compound is not able to completely abolish EGFR autophosphorylation in H1975 NSCLC cell line harboring the L858R/T790M mutant. Dimerization-defective/independent mutants are markedly more sensitive to it. Since EGFR dimerization is required for kinase enzyme activation, this chemical may be active against one subunit of an EGFR heterodimer/asymmetric dimer^[2].
in vivo	Mouse pharmacokinetic studies with EAI045 reveals a maximal plasma concentration of 0.57μM, a half-life of 2.15 h, and oral bioavailability of 26% after dosing at 20mg/kg^[1]. When combined with cetuximab that blocks EGFR dimerization, this compound markedly reduces tumor growth in a mouse model of L858R/T790M-mutant-driven lung cancer. The mice treated alone with this chemical do not respond. It in combination with cetuximab also induces marked tumor shrinkage in the mouse model carrying L858R/T790M/C797S, a mutant known to be resistant to all third-generation EGFR TKIs. This compound and cetuximab exhibits mechanistic synergy^[2].

プロトコル(参考用のみ)

細胞アッセイ	細胞株	H1975, H3255 and HaCaT cell lines
	濃度	Serial dilution (0-100 μM)
	反応時間	3 days
	実験の流れ	H1975, H3255 and HaCaT cell lines are plated in solid white 384-well plates at 500 cells per well in 10% FBS RPMI penicillin/streptomycin media. Using a Pin Tool, 50 nl of serial diluted compounds are transferred to the cells. After 3 days, cell viability is measured.
動物実験	動物モデル	EGFR(TL) (bearing L858R/T790M point mutations) and EGFR(TD) (bearing exon19del/T790M point mutations) mice
	投薬量	60 mg/kg
	投与方法	by oral gavage

参考

https://pubmed.ncbi.nlm.nih.gov/27251290/
https://pubmed.ncbi.nlm.nih.gov/27448564/

Selleckの高級品が、幾つかの出版された研究調査結果（以下を含む）で使われた：

Synthesis and preclinical evaluation of [11C]EAI045 as a PET tracer for imaging tumors expressing mutated epidermal growth factor receptor [ EJNMMI Res, 2024, 14(1):19]	PubMed: 38363422
An UPLC-MS/MS method for the determination of EAI045 in plasma and tissues and its application to pharmacokinetic and distribution studies in rats. [ Pharmazie, 2018, 73(11):630-634]	PubMed: 30396380

長期の保管のために-20°Cの下で製品を保ってください。

人間や獣医の診断であるか治療的な使用のためにでない。

各々の製品のための特定の保管と取扱い情報は、製品データシートの上で示されます。大部分のSelleck製品は、推薦された状況の下で安定です。製品は、推薦された保管温度と異なる温度で、時々出荷されます。長期の保管のために必要とされてそれと異なる温度で、多くの製品は、短期もので安定です。品質を維持するが、夜通しの積荷のために最も経済的な貯蔵状況を用いてあなたの送料を保存する状況の下に、製品が出荷されることを、我々は確実とします。製品の受領と同時に、製品データシートの上で貯蔵推薦に従ってください。