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首页> 外文期刊>British Journal of Haematology >AT9283, a potent inhibitor of the Aurora kinases and Jak2, has therapeutic potential in myeloproliferative disorders
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AT9283, a potent inhibitor of the Aurora kinases and Jak2, has therapeutic potential in myeloproliferative disorders

机译:AT9283是Aurora激酶和Jak2的有效抑制剂,在骨髓增生性疾病中具有治疗潜力

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SummaryConstitutive activation of Janus kinase (Jak) 2 is the most prevalent pathogenic event observed in the myeloproliferative disorders (MPD), suggesting that inhibitors of Jak2 may prove valuable in their management. Inhibition of the Aurora kinases has also proven to be an effective therapeutic strategy in a number of haematological malignancies. AT9283 is a multi-targeted kinase inhibitor with potent activity against Jak2 and Aurora kinases A and B, and is currently being evaluated in clinical trials. To investigate the therapeutic potential of AT9283 in the MPD we studied its activity in a number of Jak2-dependent systems. AT9283 potently inhibited proliferation and Jak2-related signalling in Jak2-dependent cell lines as well as inhibiting the formation of erythroid colonies from haematopoietic progenitors isolated from MPD patients with Jak2 mutations. The compound also demonstrated significant therapeutic potential in vivo in an ETV6-JAK2 (TEL-JAK2) murine leukaemia model. Inhibition of both Jak2 and Aurora B was observed in the model systems used, indicating a dual mechanism of action. Our results suggest that AT9283 may be a valuable therapy in patients with MPD and that the dual inhibition of Jak2 and the Aurora kinases may potentially offer combinatorial efficacy in the treatment of these diseases.
机译:总结Janus激酶(Jak)2的组成性激活是在骨髓增生性疾病(MPD)中观察到的最普遍的致病事件,表明Jak2抑制剂可能在其治疗中具有重要价值。极光激酶的抑制也已被证明是许多血液系统恶性肿瘤的有效治疗策略。 AT9283是一种多靶点激酶抑制剂,具有针对Jak2和Aurora激酶A和B的有效活性,目前正在临床试验中进行评估。为了研究AT9283在MPD中的治疗潜力,我们研究了其在许多Jak2依赖系统中的活性。 AT9283有效抑制Jak2依赖性细胞系中的增殖和Jak2相关信号传导,并抑制来自Jak2突变的MPD患者的造血祖细胞形成的类红细胞集落的形成。在ETV6-JAK2(TEL-JAK2)鼠白血病模型中,该化合物还具有体内显着的治疗潜力。在所使用的模型系统中,Jak2和Aurora B均被抑制,这表明它具有双重作用机制。我们的结果表明,AT9283在MPD患者中可能是一种有价值的疗法,而Jak2和Aurora激酶的双重抑制可能在这些疾病的治疗中提供组合疗效。

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