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APTO-253

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Chemical Structure| 916151-99-0 同义名 : LT-253;LOR-253
CAS号 : 916151-99-0
货号 : A350879
分子式 : C22H14FN5
纯度 : 99%+
分子量 : 367.378
MDL号 : MFCD25976826
存储条件：

粉末 Sealed in dry,2-8°C

液体 -20°C:3-6个月-80°C:12个月
溶解度 :

DMSO: 60 mg/mL(163.32 mM)，配合低频超声助溶，注意：DMSO长时间开封后，会吸水并导致溶解能力下降，请避免使用长期开封的DMSO
动物实验配方：
生物活性
描述 The p21 Activated Kinases (PAKs) are a family of serine threonine kinases, that consist of 6 members, PAKs 1-6, which are positioned at an intersection of multiple signaling pathways implicated in oncogenesis[2]. APTO-253 is a phase I clinical stage small molecule that selectively induces CDKN1A (p21), promotes G0-G1 cell-cycle arrest, and triggers apoptosis in acute myeloid leukemia (AML) cells without producing myelosuppression in various animal species and humans. APTO-253 was found to elicit a concentration- and time-dependent reduction in MYC mRNA expression and protein levels. Intracellular pharmacokinetic studies in AML cells revealed that APTO-253 is converted intracellularly from a monomer to a ferrous complex [Fe(253)3][3]. Treatment of cells with APTO-253 caused DNA damage, which led us to ask whether cells deficient in homologous recombination (i.e., loss of BRCA1/2 function) were hypersensitive to this drug. It was found that loss of either BRCA1 or BRCA2 function in multiple isogenic paired cell lines resulted in hypersensitivity to APTO-253 of a magnitude similar to the effects of PARP inhibitors, olaparib. Raji cells selected for 16-fold acquired resistance had 16-fold reduced accumulation of Fe(253)3 RNA-seq analysis revealed that overexpression of the ABCG2 drug efflux pump is a key mechanism of resistance. ABCG2-overexpressed HEK-293 cells were resistant to APTO-253, and inhibition of ABCG2 reversed resistance to APTO-253 in Raji/253R[4]. Treatment of ovarian cancer cells with APTO-253, a small molecule inducer of KLF4, enhanced the efficacy of both chemotherapy drugs. KLF4 expression mediated by lentiviral vector or induced by APTO-253 resulted in G1 phase arrest in ovarian cancer cells[5].
实验方案
1mg 5mg 10mg

1 mM

5 mM

10 mM

2.72mL

0.54mL

0.27mL

13.61mL

2.72mL

1.36mL

27.22mL

5.44mL

2.72mL
参考文献

[1]Sakata VM, da Silva FT, et al. High rate of clinical recurrence in patients with Vogt-Koyanagi-Harada disease treated with early high-dose corticosteroids. Graefes Arch Clin Exp Ophthalmol. 2015 May;253(5):785-90.

[2]Chetan K Rane,et al. P21 activated kinase signaling in cancer. Semin Cancer Biol. 2019 Feb;54:40-49.

[3]Andrea Local,et al. APTO-253 Stabilizes G-quadruplex DNA, Inhibits MYC Expression, and Induces DNA Damage in Acute Myeloid Leukemia Cells. Mol Cancer Ther. 2018 Jun;17(6):1177-1186.

[4]Cheng-Yu Tsai,et al. APTO-253 Is a New Addition to the Repertoire of Drugs that Can Exploit DNA BRCA1/2 Deficiency. Mol Cancer Ther. 2018 Jun;17(6):1167-1176.

[5]Baojin Wang,et al. KLF4 expression enhances the efficacy of chemotherapy drugs in ovarian cancer cells. Biochem Biophys Res Commun. 2017 Mar 11;484(3):486-492.