骨髓衍生的转移性神经母细胞瘤的综合单细胞和转录组分析揭示了代谢重编程的分子机制
Jing Chu1, Rong Qin2, Shu-Jing Wang2
1Department of Pathology, The Second Affiliated Hospital of Anhui Medical University, Anhui Provincial Children's Hospital, Hefei, 230601, China.
Scientific reports
|August 5, 2025
概括
这项研究揭示了驱动神经母细胞瘤 (NB) 骨髓转移中的代谢重编程的五个关键基因,这些基因与不良预后和免疫抑制有关. 强调MRPL21是NB细胞增殖和线粒体功能的一个关键目标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 神经母细胞瘤 (NB) 是一种常见的儿童癌症,经常发生骨髓 (BM) 转移,往往导致治疗耐药性和不良结果.
- 代谢重编程在NB进展中至关重要,但其在BM微环境中的机制尚未完全理解.
研究的目的:
- 系统地研究骨髓透的NB细胞中代谢重编程的分子机制.
- 确定参与NB转移的关键基因和途径,以及它们与瘤微环境和预后的关联.
主要方法:
- 整合了来自NB患者的单细胞RNA测序和大量RNA测序数据.
- 生物信息分析包括细胞亚型注释,细胞间通信映射,转录因子规律构造和生存分析.
- 在体外验证NB细胞增殖,迁移,入侵和线粒体活动中识别的基因功能.
主要成果:
- 在BM-透NB中确定了9个不同的细胞亚群,MDK-NCL作为关键信号通路.
- 发现了五个核心代谢重编程基因 (MRPL21,NHP2,RPL13,RPL18A,RPL27A) 与NB预后不佳显著相关.
- 发现这些基因的高表达与免疫抑制的微环境以及氧化酸化和MYC/PI3K-Akt/p53信号通路的丰富相关.
- MRPL21敲击损害了NB细胞的增殖,迁移,入侵和线粒体功能.
结论:
- 五个关键基因参与了骨髓中转移性NB的代谢重编程.
- 这些基因有助于免疫抑制瘤微环境,并与NB的不良预后有关.
- MRPL21是NB细胞增殖和线粒体功能的关键调节者,代表了高风险NB的潜在治疗标.
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