对肺腺癌中恶性上皮细胞异质性的单细胞数据分析,用于患者分类和预后预测
Xu Ran1,2, Lu Tong1,2, Wang Chenghao1,2
1Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Heliyon
|October 9, 2023
概括
研究人员在肺腺癌 (LUAD) 中发现了一种新型恶性上皮细胞,KRT81 +. 这些细胞与由于活性缺氧和EMT通路的恶化患者预后有关,可能会导致转移.
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:
- 肺癌,特别是肺腺癌 (LUAD),是一个重大的全球健康挑战,在晚期的晚期生存率很低.
- 在LUAD中,治疗耐药性和瘤复发通常与未解决的瘤内异质性有关.
- 单细胞RNA测序 (scRNA-seq) 提供高分辨率的转录组数据,对于剖析瘤内的细胞多样性至关重要.
研究的目的:
- 通过使用集成的scRNA-seq和大量RNA-seq数据,研究肺腺癌的内异质性.
- 在LUAD中识别与患者预后相关的新细胞群.
- 探索已识别的细胞群的功能途径和潜在的转移能力.
主要方法:
- 从肺腺癌中整合单细胞RNA测序 (scRNA-seq) 和散装RNA测序 (散装RNA-seq) 数据.
- 生物信息学分析以识别不同的细胞群及其分子特征.
- 途径分析用于调查与特定细胞群相关的生物功能.
主要成果:
- 在LUAD中发现了一种新的KRT81阳性 (KRT81+) 恶性上皮细胞群.
- 恶性上皮细胞KRT81+显著与患者预后恶化有关.
- 这些细胞表现出活性缺氧和上皮-介质细胞过渡 (EMT) 途径,这表明它们在转移中发挥了作用.
- 该研究还探讨了这些细胞对瘤免疫微环境的影响,以及它们在患者分类和预后预测中的实用性.
结论:
- 恶性上皮细胞群KRT81+代表了肺腺癌预后不佳的新型生物标志物.
- 在KRT81+细胞中激活的缺氧和EMT通路有助于LUAD进展和转移潜力.
- 了解这些特定的瘤细胞种群可以改善肺腺癌的分类,并为预后策略提供信息.
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