Targeting PRMT1 Reduces Cancer Persistence and Tumor Relapse in EGFR- and KRAS-Mutant Lung Cancer.

IF 2 Q3 ONCOLOGY
Xiaoxiao Sun, Karl Kumbier, Savitha Gayathri, Veronica Steri, Lani F Wu, Steven J Altschuler
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Abstract

Significance: Eliminating "persisters" before relapse is crucial for achieving durable treatment efficacy. This study provides a rationale for developing PRMT1-selective inhibitors to target cancer persisters and achieve more durable outcomes in oncogene-targeting therapies.

靶向PRMT1可减少EGFR-和kras突变肺癌的肿瘤持久性和肿瘤复发。
不完全杀死癌细胞会破坏癌基因靶向治疗并导致疾病复发。消除治疗过程中持续存在的癌细胞对于改善治疗效果至关重要。在这里,我们发现I型蛋白精氨酸甲基转移酶(PRMTs)的一种特异性异构体,即PRMT1,使具有EGFR或KRASG12C驱动突变和高STAT1活性的肺癌细胞能够通过靶向药物治疗持续存在。PRMT1敲低与EGFR或KRASG12C抑制剂联合使用,降低了细胞系模型中癌细胞的持久性和延迟了癌细胞的再生,并显著延长了异种移植模型中肿瘤的消退时间。相比之下,我们发现敲除另外两种I型PRMT亚型,PRMT4和PRMT6,会增加持久性。最后,我们发现在5q31.1染色体完整与缺失的肺癌模型中,靶向PRMT1降低持久性更有效,5q31.1是一个富含JAK-STAT通路基因的区域,这提示了一个潜在的分层标准。总之,我们的研究指出,在EGFR-或krasg12c靶向治疗中,PRMT1亚型是癌症持续的关键易感性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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