Hashimoto Mari, Ishikawa Fumihiko
RIKEN, Center for Integrative Medical Sciences.
Rinsho Ketsueki. 2021;62(7):774-780. doi: 10.11406/rinketsu.62.774.
Genetic complexity and heterogeneity have made drug discovery difficult in human malignancies. In the past few years, we aimed to find vulnerabilities in therapy-resistant and refractory acute myeloid leukemia (AML) through integrative analyses of genomic data, clinical information, and results from in vivo/in vitro cell biological assays. Through analyses, we found that the cells of patients with AML show distinct sensitivity/resistance to small inhibiting molecules for anti-apoptosis and cell cycle/division. In particular, AML cells harboring the IDH1/2 mutations were highly sensitive to BCL-2 inhibition, while inhibition of IAP proteins resulted in efficient elimination of AML cells with varied FLT3, NRAS, and CBL mutations. Linking AML-initiating events with appropriate therapeutic strategies through cellular and genomic analyses might be further translated into nonmyeloid malignancies and solid tumors in the future.
基因复杂性和异质性使得人类恶性肿瘤的药物研发颇具难度。在过去几年中,我们旨在通过对基因组数据、临床信息以及体内/体外细胞生物学试验结果进行综合分析,来寻找治疗抵抗性和难治性急性髓系白血病(AML)中的薄弱环节。通过分析,我们发现AML患者的细胞对抑制抗凋亡和细胞周期/分裂的小分子表现出不同的敏感性/抗性。特别是,携带IDH1/2突变的AML细胞对BCL-2抑制高度敏感,而抑制IAP蛋白可有效清除具有不同FLT3、NRAS和CBL突变的AML细胞。通过细胞和基因组分析将AML起始事件与适当的治疗策略联系起来,未来可能会进一步应用于非髓系恶性肿瘤和实体瘤。