IFN-γ-诱导肠上皮细胞类型特异性编程细胞死亡:PANoptosis及其在克罗恩病中的调节
Chansu Lee1,2, Ji Eun Kim1, Yeo-Eun Cha1,2
1Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Frontiers in immunology
|April 15, 2025
概括
干扰素- (IFN-γ) 在克罗恩病 (CD) 患者的肠道细胞中触发编程细胞死亡 (PANoptosis). 一种JAK1抑制剂有效地阻止了这种反应,为CD提供了潜在的治疗策略.
科学领域:
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 克罗恩病 (Crohn's disease,简称CD) 是一种慢性炎症性肠病 (IBD),其特征是Th1介导的炎症.
- 干扰素- (IFN-γ) 在CD中过度表达,并影响肠道上皮细胞 (IECs).
研究的目的:
- 研究IFN-γ对IECs的影响,特别关注编程细胞死亡 (PCD) 途径.
- 评估CD中IFN-γ诱导反应的潜在治疗点.
主要方法:
- 来自健康对照组和CD患者的确定的人类小肠器官 (enteroids).
- 评估了IFN-γ诱导的PCD途径,包括热,光和死.
- 在患者组织和单细胞RNA测序数据中验证的发现.
主要成果:
- 在IEC中由IFN-γ诱导的剂量依赖的PANoptosis来自对照和CD体.
- 观察到肠细胞枯竭和杯状细胞扩张,与差异性的PANoptosis基因表达.
- 一种选择性JAK1抑制剂 (upadacitinib) 阻止了IFN-γ诱导的细胞毒性和PANoptosis.
- 在CD患者的组织中,PANoptosis被显著激活.
结论:
- IFN-γ在肠道肠细胞中诱导PANoptosis,这是克罗恩氏病发病的一个关键过程.
- 选择性JAK1抑制是一种有前途的治疗方法,用于控制CD中的IFN-γ驱动炎症.
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