AS-99

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上海金畔生物科技有限公司为生命科学和医药研发人员提供生物活性分子抑制剂、激动剂、特异性抑制剂、化合物库、重组蛋白，专注于信号通路和疾病研究领域。

AS-99 

AS-99 是首创的、有效的、选择性 ASH1L 组蛋白甲基转移酶抑制剂 (IC50= 0.79 µM，Kd= 0.89 µM)，并具有抗白血病活性。AS-99 阻断细胞增殖，诱导细胞凋亡 (apoptosis) 和细胞分化，下调 MLL 融合靶基因，减少体内白血病负担。

AS-99

AS-99 Chemical Structure

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AS-99 的其他形式现货产品:

AS-99 TFA

生物活性

AS-99 is a first-in-class, potent, and selective ASH1L histone methyltransferase inhibitor (IC50= 0.79 µM, Kd= 0.89 µM) with anti-leukemic activity. AS-99 blocks cell proliferation, induces apoptosis and differentiation, downregulates MLL fusion target genes, and reduces the leukemia burden in vivo[1].

IC50 & Target

0.79 µM (ASH1L histone methyltransferase)[1]
体外研究
(In Vitro)

AS-99 is tested against a panel of 20 histone methyltransferases, including NSD1, NSD2, NSD3, and SETD2. NO significant inhibition is observed at 50 µM of AS-99 on any of the tested histone methyltransferases, indicating over 100-fold selectivity towards ASH1L[1].
AS-99 shows a several fold weaker effect on the proliferation of leukemia cells without MLL1 translocations, such as SET2 and K562, with no or limited effects at 10 µM or higher concentrations[1].
AS-99 (1-8 µM; 7 days) also induces apoptosis in the MLL leukemia cells, but not in the K562 cells, as assessed by the quantification of the Annexin V positive cells[1].
AS-99 suppresses MLL fusion driven transcriptional programs[1].
AS-99 results in a reduced number of H3K36me2 peaks when compared to the DMSO-treated cells[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

RT-PCR[1]

Cell Line: MOLM13 cells
Concentration: 2-6 µM
Incubation Time: 7 days
Result: Led to a dose-dependent downregulation of canonical MLL fusion target genes required for leukemogenesis including MEF2C, DLX2, FLT3, and HOXA9.

体内研究
(In Vivo)

AS-99 (30 mg/kg; i.p.; q.d., treated for 14 consecutive days) reduces leukemia burden in mice[1].
AS-99 is used for in vivo studies in mice, which reveals favorable exposure in plasma upon i.v. and i.p. administration (AUC = 9701 hr* ng/mL and 10,699 hr* ng/mL, respectively), suitable half-life (~5-6 h) and Cmax > 10 µM[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: 8- to 10-week old female NSG mice (bearing MV4;11 cells)[1]
Dosage: 30 mg/kg
Administration: I.p.; q.d., treated for 14 consecutive days
Result: Reduced the leukemia burden in the xenotransplantation mouse model of MLL leukemia without affecting blood counts in normal mice.

分子量

630.14

Formula

C27H31ClF3N5O3S2
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.
参考文献

  • [1]. Rogawski DS, et al. Discovery of first-in-class inhibitors of ASH1L histone methyltransferase with anti-leukemic activity. Nat Commun. 2021 May 14;12(1):2792.

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