这篇研究深入探讨了胰腺癌（PDAC）发展的早期阶段，特别关注了p53基因失活和KRAS信号通路在胰腺上皮细胞中的作用。文章识别了一种独特的祖细胞样状态，该状态在癌症发生前就同时激活了促肿瘤和抑癌程序，并与胰腺微环境的重塑紧密相关。通过小鼠模型和人类组织的单细胞转录组学和空间分析，研究人员揭示了p53失活如何促进这些祖细胞样细胞的积累，以及KRAS抑制剂如何瓦解这些促癌生态位，为早期干预策略提供了新的见解。References: Reyes J, Del Priore I, Chaikovsky A C, et al. Oncogenic and tumor-suppressive forces converge on a progenitor-orchestrated niche to shape early tumorigenesis[J]. bioRxiv, 2025: 2025.06. 10.656791.
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