在肝细胞癌中,内瘤化异质性和克隆进化
Pierre Cordier1, Théo Z Hirsch2, Stefano Caruso3
1Centre de Recherche des Cordeliers, Sorbonne Université, INSERM, Université de Paris, Paris, France; Genomic Instability, Metabolism, Immunity and Liver Tumorigenesis laboratory, Equipe Labellisée LIGUE 2023, Paris, France.
Journal of hepatology
|November 26, 2025
概括
使用数字病理学进行的肝细胞癌 (HCC) 阴性概况分析揭示了双胞胎和超双胞胎亚型. 超性HCC与不良的预后和干性有关,提供了新的诊断和治疗见解.
科学领域:
- 在瘤学瘤学.
- 数字病理学数字病理学
- 基因组学就是基因组学.
背景情况:
- 肝细胞癌 (HCC) 是癌症死亡的主要原因,因此需要生物标志物来改善预后和治疗预测.
- 聚化是固体癌症中常见的现象,在HCC中具有作为预后生物标志物的潜力.
- 目前评估HCC ploidy的方法有限,这阻碍了临床应用.
研究的目的:
- 开发和验证一个高通量定量数字病理学方法来评估HCC ploidy.
- 将HCC分为不同的化子类型 (双化,超化,混合) 并分析它们的空间组织.
- 调查与不同HCC ploidy亚型相关的基因组和转录组特征.
主要方法:
- 在全幻灯片成像上的定量数字病理学被用来评估111个HCC的核形态学和性.
- 进行了全外体测序 (WES) 和散装RNA测序,以进行基因组和转录组分析.
- 3'mRNA测序和空间转录组学被用来研究超平流体克隆的克隆进化和空间组织.
主要成果:
- 通过使用数字病理学,HCs成功地被分为二倍体 (DP) 和超倍体 (HP) 亚型.
- 通过转录组分析,HP-HCC与一个繁殖的子类,不良预后和茎状特征有关.
- 空间分析揭示了新生的超化焦点与HP-HCCs的转录基因重叠,表明从双化前体通过全基因组翻倍的克隆进化.
结论:
- 核化分析在HCC中具有显著的预后价值.
- 超化HCCs从内超化焦点以克隆方式进化,导致肝脏瘤发生的基因组不稳定性.
- 这项研究为HCC ploidy评估提供了一个新的数字病理学工具,为新的诊断和治疗策略铺平了道路.
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