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Updated: Jul 4, 2025

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Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
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通过CD8+ T细胞表达E-cadherin,促进它们侵入胆道上皮细胞
Scott P Davies1,2,3,4, Vincenzo Ronca5,6,7, Grace E Wootton5,6,8,7,9
1Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK. s.p.davies.1@bham.ac.uk.
Nature communications
|January 29, 2024
概括
在一次性胆道胆炎 (PBC) 中,CD8+ T细胞侵入胆道上皮细胞 (BEC). 这种细胞内细胞过程涉及T细胞上的E-cadherin表达,导致胆道损伤.
科学领域:
- 免疫学 免疫学 免疫学
- 肝病学 肝病学是一种肝病学.
- 细胞生物学 细胞生物学
背景情况:
- 胆道上皮细胞 (BEC) 中的CD8+ T细胞与初级胆道胆炎 (PBC) 中的胆道损伤有关.
- CD8+ T 细胞进入 BEC 的确切机制尚不清楚.
研究的目的:
- 描述 CD8+ T 细胞侵入 BEC 的机制.
- 调查特定细胞表面标记在这种侵入过程中的作用.
主要方法:
- 肝脏组织中的内皮层CD8+T细胞的表征.
- 对侵入CD8+T细胞的细胞表面标记物表达 (E-cadherin,CD103,CD69) 的分析.
- 在侵袭过程中对细胞骨重组和细胞与细胞相互作用的研究.
主要成果:
- 侵入的CD8+ T细胞很大,异常,并且表达E-cadherin,CD103和CD69,而不存在囊泡中.
- 内化需要细胞骨重组和BEC接触.
- 在CD8+ T细胞上的E-cadherin表达与增加的入侵频率和与BEC相关的β-catenin相互作用的形成相关.
- 这些细胞内细胞结构在各种肝脏疾病中被发现,但在PBC患者中得到了丰富.
结论:
- 在肝脏中发现了一种新的CD8+ T细胞细胞内细胞入侵机制进入BEC.
- 表达e-cadherin的CD8+ T细胞是这种入侵的关键媒介,有助于PBC中的胆道损伤.
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