2型糖尿病会改变脏静止的星状细胞,使其处于易致瘤的状态
Yutaro Hara1,2, Hiroki Mizukami1, Takahiro Yamada1,2
1Department of Pathology and Molecular Medicine, Biomedical Research Center.
JCI insight
|June 23, 2025
概括
2型糖尿病改变了胰腺星状细胞 (PSC) 亚群. 一种特定的PSC类型,tapPafs,在糖尿病中减少,这表明胰腺癌和糖尿病的治疗点.
科学领域:
- 在瘤学瘤学.
- 内分泌学 在内分泌学.
- 细胞生物学 细胞生物学
背景情况:
- 胰腺恒星细胞 (PSC) 是胰腺管腺癌 (PDAC) 发展的关键参与者.
- 2型糖尿病 (T2D) 是PDAC的潜在风险因素,但其对PSC的影响尚不清楚.
研究的目的:
- 调查静止PSCs (qPSCs) 的子群体以及T2D如何影响它们.
- 在糖尿病患者中确定PDAC的潜在治疗点.
主要方法:
- 来自C57BL/6J和糖尿病db/db小鼠的PSCs的单细胞RNA测序.
- 将qPSC亚种群和PDAC细胞皮下移植到异性小鼠体内.
主要成果:
- qPSCs被分为介质细胞和胰腺纤维细胞 (Pafs).
- 帕夫进一步分为炎症性帕夫,肌纤维细胞帕夫 (myPafs) 和促进瘤免疫和血管生成的帕夫 (tapPafs).
- 患有myPafs的瘤比患有tapPafs的瘤更大;T2D在癌前阶段显示myPafs增加和tapPafs减少.
结论:
- T2D改变了qPSC亚群,降低了有益的tapPafs,增加了有害的myPafs.
- 增加 tapPafs可能代表了在患有或没有T2D的患者中PDAC的新疗法策略,包括在癌前阶段的患者.
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