PAD4驱动的巨细胞外陷对性结肠炎的益纤维影响
Zhiwei Wang1, Ruiya Shi1, Yuxin Shi1
1School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China.
Pharmacological research
|August 28, 2025
概括
氨基酶4 (PAD4) 驱动巨细胞外陷 (METs),促进性结肠炎 (UC) 的肠纤维化. 抑制PAD4可以降低MET并缓解纤维化,为UC提供潜在的治疗策略.
科学领域:
- 免疫学
- 胃肠病学
- 病理学
背景情况:
- 炎症性巨分化是性结肠炎 (UC) 发病的关键.
- 表达氨酸脱敏酶4 (PAD4) 的巨细胞形成细胞外陷 (MET).
研究的目的:
- 研究PAD4驱动的METs在UC中促进肠纤维化的作用.
- 探索PAD4作为UC相关纤维化的治疗点.
主要方法:
- 在UC患者和DSS诱导小鼠中分析PAD4和MET.
- 评估纤维化的 PAD4 淘汰模型.
- 用RNA测序和体外研究来确定分子机制.
主要成果:
- 在UC中增加PAD4和MET,与纤维化相关.
- 显著减少了MET形成和肠道纤维化.
- PAD4 调节骨质素 (OPN/ Spp1) 表达,驱动纤维细胞转变为肌纤维细胞 (FMT).
- 影响Spp1转录的RELA和STAT1.
结论:
- PAD4驱动的MET在UC相关的肠纤维化中起着至关重要的作用.
- PAD4通过OPN/Spp1调解巨细胞和纤维细胞之间的交叉声.
- 向PAD4为UC纤维化提供了一个有希望的治疗途径.
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