VX-803 (M4344)

製品コードS9639 バッチS963901

化学情報

	Synonyms	ATR inhibitor 2	Storage (From the date of receipt)	3 years -20°C powder
	化学式	C₂₅H₂₉F₂N₉O₃
	分子量	541.55	CAS No.	1613191-99-3
Solubility (25°C)*	体外	DMSO	15 mg/mL (27.69 mM)
		Water	Insoluble
		Ethanol	Insoluble
* <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	VX-803 (M4344, ATR inhibitor 2) is an ATP-competitive, orally active, and selective inhibitor of ataxia telangiectasia and Rad3 related (ATR) kinase with Ki of < 150 pM. VX-803 (M4344) potently inhibits ATR-driven phosphorylated checkpoint kinase-1 (P-Chk1) phosphorylation with IC50 of 8 nM. VX-803 (M4344) exhibits potential antineoplastic activity.
in vitro	M4344 is determined to be an adenosine triphosphate (ATP)-competitive, highly potent, and tight-binding inhibitor of ATR with a Ki of < 150 pM. Minimal inhibitory activity is observed against a large panel of unrelated protein kinases, with 308 of 312 kinases tested having a measured Ki corresponding to more than 100-fold selectivity. M4344 potently inhibits ATR-driven phosphorylated checkpoint kinase-1 (P-Chk1) phosphorylation with an IC50 of 8 nM. Profiling on a selected set of cancer cell lines shows synergy with several types of DNA damaging chemotherapeutics as well as PARP1/2 and CHK1 inhibitors.^[1]
in vivo	In monotherapy efficacy studies M4344 shows tumor stasis to regression in tumor models with alternative lengthening of telomeres (ALT). In combination with PARP inhibitors, tumor regression can be observed in triple-negative breast cancer xenograft models.^[1]

プロトコル(参考用のみ)

細胞アッセイ	細胞株	Cell-free assays
	濃度	Ki of < 150 pM
	反応時間
	実験の流れ
動物実験	動物モデル	Rag2 mice
	投薬量	10 or 20 mg/kg
	投与方法	o.g.

参考

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：

Detailed mechanisms for unintended large DNA deletions with CRISPR, base editors, and prime editors [ bioRxiv, 2024, ]	PubMed: none
A Chemical Proteomics Approach to Discover Regulators of Innate Immune Signaling [ Viruses, 2023, 15(5)1112]	PubMed: 37243198
ATR inhibition overcomes platinum tolerance associated with ERCC1- and p53-deficiency by inducing replication catastrophe [ NAR Cancer, 2023, 5(1):zcac045]	PubMed: 36644397
Immunogenicity of small-cell lung cancer associates with STING pathway activation and is enhanced by ATR and TOP1 inhibition [ Cancer Med, 2022, 10.1002/cam4.5109]	PubMed: 35957613

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。

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