Macrophage Phenotype and Function in Liver Disorder

Lang Dou, Xiaomin Shi, Xiaoshun He, Yifang Gao

Research output: Contribution to journalReview article

13 Scopus citations

Abstract

Hepatic macrophages are a remarkably heterogeneous population consisting of self-renewing tissue-resident phagocytes, termed Kupffer cells (KCs), and recruited macrophages derived from peritoneal cavity as well as the bone marrow. KCs are located in the liver sinusoid where they scavenge the microbe from the portal vein to maintain liver homeostasis. Liver injury may trigger hepatic recruitment of peritoneal macrophages and monocyte-derived macrophages. Studies describing macrophage accumulation have shown that hepatic macrophages are involved in the initiation and progression of various liver diseases. They act as tolerogenic antigen-presenting cells to inhibit T-cell activation by producing distinct sets of cytokines, chemokines, and mediators to maintain or resolve inflammation. Furthermore, by releasing regenerative growth factors, matrix metalloproteinase arginase, they promote tissue repair. Recent experiments found that KCs and recruited macrophages may play different roles in the development of liver disease. Given that hepatic macrophages are considerably plastic populations, their phenotypes and functions are likely switching along disease progression. In this review, we summarize current knowledge about the role of tissue-resident macrophages and recruited macrophages in pathogenesis of alcoholic liver disease (ALD), non-alcoholic steatohepatitis (NASH), viral hepatitis, and hepatocellular carcinoma (HCC).

Original languageEnglish (US)
Article number3112
JournalFrontiers in immunology
Volume10
DOIs
StatePublished - Jan 28 2020

Keywords

  • Kupffer cells
  • alcoholic liver disease
  • hepatic macrophages
  • hepatocellular carcinoma
  • non-alcoholic steatohepatitis
  • viral hepatitis

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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