909-胰腺癌恶性转化的原基生态位研究 episode artwork

EPISODE · May 6, 2026 · 14 MIN

909-胰腺癌恶性转化的原基生态位研究

from 聊聊Sci

这项研究利用胰腺癌小鼠模型和单细胞空间转录组技术,揭示了良性病变向恶性肿瘤转化的关键机制。研究发现,致癌基因 KRAS 与抑癌因子 p53 等力量在一种特殊的类祖细胞状态中交汇,这种细胞能构建一个自我强化的类癌症微环境(Niche)。当 p53 蛋白保持活性或 KRAS 受到抑制时,这种促癌生态位会迅速崩溃,从而阻断恶性转化进程。在人类慢性胰腺炎样本中,也观察到了类似的病理结构,证实了该发现的临床相关性。这一成果确定了癌症发生的早期干预窗口,即通过破坏类祖细胞状态及其微环境来预防恶性肿瘤的形成。因此,针对这些早期细胞状态的治疗手段可能成为阻断胰腺癌进展的有效策略。References:Reyes J, Del Priore I, Chaikovsky A C, et al. Oncogenic and tumor-suppressive forces converge on a progenitor niche at the benign-to-malignant transition[J]. Cell, 2025.前往小宇宙评论区与主播互动

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909-胰腺癌恶性转化的原基生态位研究

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