摘要
通过DNA测序对急性髓系白血病(AML)的基因组特征进行了阐明,这种疾病具有明显的驱动突变,可能对靶向治疗有反应。大约15-23%的AML基因组存在异柠檬酸脱氢酶两种异构体(IDH1或IDH2)中的一种突变。这些酶是基本细胞代谢的组成介质,但它们的突变形式在癌症中合成一种异常代谢物,2-羟基戊二酸,反过来作为一种多基因调节酶的竞争性抑制剂。因此,白血病的IDH突变导致基因组结构和基因活性的改变,最终导致正常骨髓分化的停止。这些发现激发了一类新的选择性小分子的发展,这些小分子有能力抑制突变的IDH酶,同时保留正常的细胞代谢。这些药物在动物模型和早期临床试验中显示出良好的抗白血病活性,目前正进入第三期研究。这篇综述将聚焦于日益增多的评估IDH抑制剂治疗IDH突变AML的临床前和临床数据。这些数据表明诱导细胞分化是IDH抑制剂临床疗效的核心机制,同时也介导了IDH分化综合征患者的毒性。目前正在进行IDH抑制剂联合其他AML治疗的疗效研究,以评估潜在的协同组合,并在现有的标准护理方案中确定IDH抑制剂的合适位置。
关键词: 急性髓系白血病,异柠檬酸脱氢酶,IDH1,IDH2,ivosidenib,enasidenib
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