Immunologic role of macrophages in sepsis-induced acute liver injury

作者：Wanling Xu, Hailong Hou, Weiying Yang, Wenjing Tang, Lichao Sun · 发表于：International Immunopharmacology · 年份：2024 · DOI：10.1016/j.intimp.2024.113492 · 被引用次数：26 · 研究领域：Inflammasome and immune disorders、Immune cells in cancer、Immune Response and Inflammation

Sepsis-induced acute liver injury (SALI), a manifestation of sepsis multi-organ dysfunction syndrome, is associated with poor prognosis and high mortality. The diversity and plasticity of liver macrophage subpopulations explain their different functional responses in different liver diseases. Kupffer macrophages, liver capsular macrophages, and monocyte-derived macrophages are involved in pathogen recognition and clearance and in the regulation of inflammatory responses, exacerbating the progression of SALI through different pathways of pyroptosis, ferroptosis, and autophagy. Concurrently, they play an important role in maintaining hepatic homeostasis and in the injury and repair processes of SALI. Other macrophages are recruited to diseased tissues under pathological conditions and are polarized into various phenotypes (mainly M1 and M2 types) under the influence of signaling molecules, transcription factors, and metabolic reprogramming, thereby exerting different roles and functions. This review provides an overview of the immune role of macrophages in SALI and discusses the multiple roles of macrophages in liver injury and repair to provide a reference for future studies.