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Mitochondrial metabolism as a potential therapeutic target in myeloid leukaemia
Leukemia ( IF 11.4 ) Pub Date : 2021-09-24 , DOI: 10.1038/s41375-021-01416-w
Lucie de Beauchamp 1 , Ekaterini Himonas 1 , G Vignir Helgason 1
Affiliation  

While the understanding of the genomic aberrations that underpin chronic and acute myeloid leukaemia (CML and AML) has allowed the development of therapies for these diseases, limitations remain. These become apparent when looking at the frequency of treatment resistance leading to disease relapse in leukaemia patients. Key questions regarding the fundamental biology of the leukaemic cells, such as their metabolic dependencies, are still unresolved. Even though a majority of leukaemic cells are killed during initial treatment, persistent leukaemic stem cells (LSCs) and therapy-resistant cells are still not eradicated with current treatments, due to various mechanisms that may contribute to therapy resistance, including cellular metabolic adaptations. In fact, recent studies have shown that LSCs and treatment-resistant cells are dependent on mitochondrial metabolism, hence rendering them sensitive to inhibition of mitochondrial oxidative phosphorylation (OXPHOS). As a result, rewired energy metabolism in leukaemic cells is now considered an attractive therapeutic target and the significance of this process is increasingly being recognised in various haematological malignancies. Therefore, identifying and targeting aberrant metabolism in drug-resistant leukaemic cells is an imperative and a relevant strategy for the development of new therapeutic options in leukaemia. In this review, we present a detailed overview of the most recent studies that present experimental evidence on how leukaemic cells can metabolically rewire, more specifically the importance of OXPHOS in LSCs and treatment-resistant cells, and the current drugs available to target this process. We highlight that uncovering specific energy metabolism dependencies will guide the identification of new and more targeted therapeutic strategies for myeloid leukaemia.



中文翻译:

线粒体代谢作为髓系白血病的潜在治疗靶点

虽然对慢性和急性髓性白血病(CML 和 AML)背后的基因组畸变的了解使得这些疾病的治疗方法得以开发,但局限性仍然存在。当观察导致白血病患者疾病复发的治疗耐药性频率时,这些问题就变得显而易见。关于白血病细胞的基本生物学的关键问题,例如它们的代谢依赖性,仍未解决。尽管大多数白血病细胞在初始治疗期间被杀死,但由于各种可能导致治疗抵抗的机制(包括细胞代谢适应),目前的治疗仍无法根除持续性白血病干细胞(LSC)和治疗抵抗细胞。事实上,最近的研究表明,LSC 和治疗抵抗细胞依赖于线粒体代谢,因此使它们对线粒体氧化磷酸化 (OXPHOS) 的抑制敏感。因此,白血病细胞中重新连接的能量代谢现在被认为是一个有吸引力的治疗靶点,并且这一过程的重要性在各种血液恶性肿瘤中越来越得到认识。因此,识别和靶向耐药白血病细胞中的异常代谢是开发白血病新治疗方案的必要和相关策略。在这篇综述中,我们详细概述了最新的研究,这些研究提供了关于白血病细胞如何代谢重新连接的实验证据,更具体地说,OXPHOS 在 LSC 和治疗抵抗细胞中的重要性,以及当前可用于靶向这一过程的药物。我们强调,揭示特定的能量代谢依赖性将指导确定新的、更有针对性的髓系白血病治疗策略。

更新日期:2021-09-28
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