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The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
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转录性可塑性是转移性胰腺癌的一个标志.

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科学领域:

  • 在瘤学瘤学.
  • 基因组学就是基因组学.
  • 系统生物学 系统生物学

背景情况:

  • 转移是癌症相关死亡的主要原因.
  • 了解瘤细胞适应于不同的器官环境对于开发抗转移策略至关重要.

研究的目的:

  • 研究胰腺管道腺癌细胞在转移期间如何适应不同器官微环境.
  • 在转移性病变中识别共享和特定位点的基因表达程序.

主要方法:

  • 从原发性和转移性瘤样本生成单细胞转录基因图谱.
  • 无监督的原型分析以识别基因表达程序.
  • 开发PICASSO,一种推断克隆系谱的概率方法.
  • 克隆结构与表型特征的比较.

主要成果:

  • 确定了共享和特定基因程序,包括脂质代谢和胃肠道程序.
  • 胰腺癌细胞显示适应当地环境,基因型贡献最小.
  • 环境因素在转移期间显著影响癌细胞的可塑性.

结论:

  • 转移期间癌细胞的适应主要是由环境影响而不是克隆基因型驱动的.
  • 这突显了癌细胞的可塑性和瘤微环境在转移性进展中的重要性.