附录素A1通过调节中性粒细胞的功能来增强亚美诺芬诱导的肝损伤后的肝脏修复
Lixia Zha1, Deng Liu1, Mengting Zhan1
1Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, China; Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, Anhui 230032, China.
Free radical biology & medicine
|February 18, 2026
概括
附录素A1 (ANXA1) 通过减少中性粒细胞外细胞陷 (NETs) 来帮助乙氨基 (APAP) 过量服用后的肝脏修复. ANXA1 缺乏会使肝损伤恶化,但其抑制为药物诱导的肝损伤提供了治疗策略.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 乙氨基 (APAP) 诱导的急性肝损伤 (AILI) 是急性肝衰竭 (ALF) 的主要原因,治疗方法有限.
- 无法逆转的AILI进展的潜在机制尚未完全理解.
- 在AILI中,抗炎因子Annexin A1 (ANXA1) 的作用尚不清楚.
研究的目的:
- 研究ANXA1在APAP引起的肝损伤中的作用.
- 探索ANXA1的作用机制,涉及中性粒细胞和中性粒细胞外细胞陷 (NETs).
- 评估基于ANXA1的AILI治疗策略.
主要方法:
- 建立了一个临床相关的小鼠模型,用于APAP诱导的AILI.
- 在受伤的肝脏中评估ANXA1的表达和定位.
- 研究了ANXA1缺乏,NET抑制 (DNase I) 和ANXA1 (Ac2-26) 治疗对肝损伤和中性粒细胞表型的影响.
主要成果:
- 在APAP受伤的肝脏中,ANXA1表达增加,源自中性粒细胞.
- 缺乏ANXA1会加剧肝损伤和修复功能受损,与增加的NET形成和改变的中性粒细胞表型有关.
- 抑制NET或使用Ac2-26治疗可以通过调节中性粒细胞表型来改善肝损伤.
结论:
- ANXA1通过抑制NET形成和促进抗炎性中性粒细胞表型,在AILI中起着保护作用.
- 在APAP过量服用后,ANXA1促进肝脏组织的修复.
- 向ANXA1和NETs为药物诱导的肝损伤提供了潜在的治疗方法.
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