在一个血细胞状树突细胞系中促进ER应激驱动纤维细胞激活
Beatriz H Ferreira1,2, Inês S Silva1, Andreia Mendes1
1Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Aveiro, Portugal.
Cell communication and signaling : CCS
|February 7, 2025
概括
血细胞状树突细胞 (pDCs) 中的内质网膜 (ER) 应激促进纤维细胞激活,可能导致系统性硬化症 (SSc) 中的纤维化. 直接的细胞接触对于这种纤维性反应至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 病理生理学 病理生理学
背景情况:
- 纤维化是诸如全身性硬化症 (SSc) 等慢性疾病的重要并发症.
- 血细胞树突细胞 (pDCs) 通过不清楚的机制与SSc纤维化有关.
- 细胞内膜网膜 (ER) 应激在SSc pDC中失调,但其在纤维化中的作用尚不清楚.
研究的目的:
- 调查pDCs和ER压力在纤维化发展中的联系机制.
- 阐明ER应激信号在pDCs促进纤维细胞激活中的作用.
主要方法:
- 在体外模型中,IMR-90纤维细胞与CAL-1pDCs共同培养.
- 使用细菌毒素SubAB.诱导ER压力.
- 评估细胞外基质 (ECM) 生产和细胞与细胞接触的重要性.
主要成果:
- 在ER压力下,pDCs和纤维细胞之间的直接接触增加了纤维素和α-SMA表达.
- 纤维细胞中的这种纤维性反应取决于pDCs中的PERK通路.
- 细胞与细胞之间的接触对于ER压力诱导的纤维细胞激活至关重要.
结论:
- 在pDC中ER压力促进纤维细胞激活,导致SSc纤维化.
- 在这个过程中,pDCs和纤维细胞之间的直接相互作用是关键机制.
关键词:
细胞与细胞之间的通信.压力ERER压力ERER压力纤维细胞细胞.纤维化 纤维化 纤维化间歇性肺病 间歇性肺病佩克 (Perk) 是一种可怕的东西.血细胞状树突细胞.脊髓硬化症是什么 脊髓硬化症通过UPR进行全日制检查.更多相关视频
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