在小细胞肺癌中循环瘤细胞的可塑性
Jiyoun Seo1, Mihir Kumar1, Jeremy Mason1,2,3
1Convergent Science Institute in Cancer, Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA, 90089, USA.
Scientific reports
|July 21, 2023
概括
液体活检揭示了小细胞肺癌 (SCLC) 中不同的循环瘤细胞. 这种异质性凸显了SCLC的特点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 小细胞肺癌 (SCLC) 是一种具有不良预后的侵袭性神经内分泌瘤.
- 瘤活检在SCLC中很困难,但在液体活检中循环瘤细胞 (CTC) 提供了一个可行的替代方案.
- 了解SCLC异质性对于开发向疗法至关重要.
研究的目的:
- 描述SCLC中罕见的循环瘤细胞的异质性.
- 在未来的临床试验中探索液体活检对SCLC患者分层的潜力.
- 通过分析SCLC细胞可塑性来确定新的治疗点.
主要方法:
- 应用了经过验证的直接成像平台来分析来自14名化疗无知SCLC患者和10名非癌症捐赠者的循环罕见细胞.
- 根据表皮细胞,内皮细胞和介质细胞生物标志物表达的特征,表现出八个不同的罕见细胞群.
- 进行单细胞基因组分析以确认基因组变化和细胞可塑性.
主要成果:
- 在SCLC患者的循环罕见细胞中观察到显著的表型异质性.
- 建立了一个患者级别的分类模型,以区分SCLC患者与健康的捐赠者.
- 在每一个罕见细胞组内确认了细胞可塑性和克隆基因组变化.
结论:
- 在SCLC中循环的罕见细胞表现出显著的异质性和可塑性.
- 液体活检是描述SCLC和分层患者的一个有希望的方法.
- 这项研究为发现SCLC新型治疗点提供了宝贵的资源.
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