美国加州大学旧金山分校Allan Balmain研究团队发现,干细胞状态在皮肤鳞状细胞癌的多阶段发展中趋同。2024年5月31日出版的《科学》杂志发表了这项成果。
研究人员从数百个小鼠组织样本(包括正常组织和肿瘤组织)中创建了基因表达网络,并将其与系谱追踪和单细胞RNA-seq整合在一起,以确定恶性肿瘤前期细胞中表达谱系可塑性和耐药性标记的细胞状态的趋同性。
其中两种代表多谱系可塑性或增殖的细胞状态成反比,表明两者之间存在相互排斥的关系。用化疗治疗体内癌细胞可抑制增殖状态并激活多谱系可塑性,而抑制分化则可抑制可塑性并增强对细胞周期抑制剂的反应。对这一细胞状态转换点的操纵可能为癌症治疗提供潜在的组合靶点。
据悉,干细胞对细胞异质性、谱系可塑性和耐药性起着至关重要的作用。
附:英文原文
Title: Stem-cell states converge in multistage cutaneous squamous cell carcinoma development
Author: Mark A. Taylor, Eve Kandyba, Kyle Halliwill, Reyno Delrosario, Matvei Khoroshkin, Hani Goodarzi, David Quigley, Yun Rose Li, Di Wu, Saumya R. Bollam, Olga K. Mirzoeva, Rosemary J. Akhurst, Allan Balmain
Issue&Volume: 2024-05-31
Abstract: Stem cells play a critical role in cancer development by contributing to cell heterogeneity, lineage plasticity, and drug resistance. We created gene expression networks from hundreds of mouse tissue samples (both normal and tumor) and integrated these with lineage tracing and single-cell RNA-seq, to identify convergence of cell states in premalignant tumor cells expressing markers of lineage plasticity and drug resistance. Two of these cell states representing multilineage plasticity or proliferation were inversely correlated, suggesting a mutually exclusive relationship. Treatment of carcinomas in vivo with chemotherapy repressed the proliferative state and activated multilineage plasticity whereas inhibition of differentiation repressed plasticity and potentiated responses to cell cycle inhibitors. Manipulation of this cell state transition point may provide a source of potential combinatorial targets for cancer therapy.
来源:科学网
原标题:干细胞状态在皮肤鳞状细胞癌的多阶段发展中趋同
作者:小柯机器人