VDAC2 primes myeloma cells for BAK-dependent apoptosis and represents a novel therapeutic target

IF 13.4 1区 医学 Q1 HEMATOLOGY Leukemia Pub Date : 2025-02-06 DOI:10.1038/s41375-025-02523-8
Ophélie Champion, Sophie Maïga, Chloé Antier, Christelle Dousset, Agnès Moreau-Aubry, Céline Bellanger, François Guillonneau, Géraldine Descamps, Jose Antonio Moreno, Ohyun Kwon, Nicoletta Libera Lilli, Philippe Moreau, David Chiron, Catherine Pellat-Deceunynck, Cyrille Touzeau, Patricia Gomez-Bougie
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VDAC2启动骨髓瘤细胞的bak依赖性凋亡,代表了一个新的治疗靶点
BAX和BAK是BCL2家族[1]中凋亡的关键执行者,它们也受到非BCL2家族蛋白的调控,如线粒体通道VDAC2[2]。虽然VDAC2在代谢物和离子通量[3]中的作用已得到广泛认可,但其参与细胞凋亡的调控引起了特别的关注。据报道,VDAC2是有效的bax依赖性凋亡[4]所必需的,同时抑制BAK凋亡功能[5]。BAX,而不是BAK,是一个众所周知的p53靶基因,并且p53介导的BAX调控是对靶向BCL2或MCL1的bh3模拟物的最佳应答所必需的[6,7]。在BAX低表达的p53缺陷骨髓瘤细胞中,预计凋亡依赖于BAK的表达和调控。这些数据促使我们研究靶向VDAC2是否会克服p53缺陷细胞的线粒体抗性。为了研究VDAC2如何影响多发性骨髓瘤(MM)的线粒体凋亡,我们在缺乏tp53的人骨髓瘤细胞系(hcls)中对VDAC2进行了短暂沉默。此外,我们评估了VDAC2在MM细胞系和原代MM患者细胞中的药理靶向性。
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来源期刊
Leukemia
Leukemia 医学-血液学
CiteScore
18.10
自引率
3.50%
发文量
270
审稿时长
3-6 weeks
期刊介绍: Title: Leukemia Journal Overview: Publishes high-quality, peer-reviewed research Covers all aspects of research and treatment of leukemia and allied diseases Includes studies of normal hemopoiesis due to comparative relevance Topics of Interest: Oncogenes Growth factors Stem cells Leukemia genomics Cell cycle Signal transduction Molecular targets for therapy And more Content Types: Original research articles Reviews Letters Correspondence Comments elaborating on significant advances and covering topical issues
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