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化学疗法耐药高风险神经母细胞瘤持久细胞的识别和表征

Liron D Grossmann^1,2,3, Chia-Hui Chen¹, Yasin Uzun^4,5,6

¹Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.

Cancer discovery

|July 31, 2024

概括

研究人员确定了导致神经母细胞瘤复发高风险的恶性细胞. 这些细胞通过抑制MYC(N) 和激活NFκB信号来逃避化疗,为预防疾病复发提供了新的点.

科学领域:

在瘤学瘤学.
基因组学就是基因组学.
分子生物学分子生物学

背景情况:

高危神经母细胞瘤的复发率很高,具有未识别的恶性细胞和鲜为人知的治疗抵抗机制.
大约50%的高风险神经母细胞瘤患者死于复发或耐药性疾病.

研究的目的:

在高风险神经母细胞瘤中识别和表征剩余的恶性"持久性"细胞,这些细胞在化疗中幸存下来.
阐明这些持久性细胞使用的化疗逃脱和治疗抵抗机制.

主要方法:

单核RNA测序 (snRNA-seq) 和大量全基因组测序 (WGS).
分析了20个匹配的瘤样本,这些样本来自高风险神经母细胞瘤患者,接受了诱导化疗.

主要成果:

持久性细胞表现出常见的化疗逃生机制,包括抑制的MYC(N) 活动.
激活NFκB信号传递是一个关键机制,由瘤微环境相互作用增强.
确定负责复发的特定恶性细胞群.

结论:

这项研究剖析了高风险神经母细胞瘤中细胞持久性的转录景观.
已确定的信号通路 (MYC(N) 抑制,NFκB激活) 提供了潜在的治疗点.
抑制这些途径可以消除持久细胞并防止神经母细胞瘤复发.

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