嗅觉神经母细胞瘤模仿小细胞肺癌的分子异质性和血统轨迹
John B Finlay1, Abbie S Ireland2, Sarah B Hawgood2
1Department of Head and Neck Surgery & Communication Sciences, Duke University, Durham 27710, NC, USA.
Cancer cell
|May 24, 2024
概括
嗅觉神经母细胞瘤 (ONB) 来自基底干细胞,与小细胞肺癌 (SCLC) 有相似之处. 这项研究揭示了ONB细胞命运的可塑性和异质性,影响了其分类和治疗.
科学领域:
- 神经科学是一个神经科学.
- 在瘤学瘤学.
- 干细胞生物学 干细胞生物学
背景情况:
- 嗅觉上皮通过基底干细胞再生,但可以发展到嗅觉神经母细胞瘤 (ONB).
- 人们对ONB的细胞起源和异质性仍然不太了解.
- 在Rb1/Trp53/Myc (RPM) 中的遗传变化与高度转移性ONB有关.
研究的目的:
- 建立一种高度转移性ONB.的基因工程小鼠模型.
- 为了研究ONB的起源细胞和细胞异质性.
- 探索ONB和其他神经内分泌瘤 (如小细胞肺癌 (SCLC)) 之间的相似之处.
主要方法:
- 用于ONB的基因工程小鼠模型 (RPM改变)
- 基于条形码的血统追踪.
- 单细胞转录组学. 单细胞转录组学.
- 对NEUROD1和POU2F3表达模式的分析.
主要成果:
- 全球基底细胞 (GBCs) 被确定为ONB.的允许来源细胞.
- ONBs表现出细胞命运异质性,反映了GBC的发展.
- 在ONB中失去ASCL1会诱导POU2F3+非神经元表型.
- 鼠标和人类的ONBs表现出相互排斥的NEUROD1和POU2F3类状态,一种免疫冷的微环境,以及类似于SCLC的细胞命运可塑性.
结论:
- ONB与神经内分泌瘤,特别是SCLC有着保留的相似之处.
- 了解ONB细胞命运异质性和可塑性对于其分类和治疗至关重要.
- 开发的小鼠模型为研究ONB病原和治疗策略提供了一个平台.
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