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Innate immunity and early liver inflammation
1Department of Surgery, University Hospital Regensburg, Regensburg, Germany.
Frontiers in Immunology
|May 19, 2023
Summary
The human liver
Area of Science:
- Immunology
- Hepatology
- Cell Biology
Background:
- The liver constantly encounters gut-derived pathogens via the portal vein.
- Hepatic immune cells balance pathogen neutralization with immune tolerance.
- Diverse innate immune cells in the liver include Kupffer cells (KCs), Natural Killer (NK) cells, and unconventional T cells (NKT, γδ T, MAIT).
Purpose of the Study:
- To review the roles of specific innate immune cell subsets in early human liver inflammation.
- To understand how aberrant innate immunity contributes to inflammatory liver diseases and fibrosis.
Main Methods:
- This review synthesizes current understanding of innate immunity in liver disease.
- Focuses on the functional states and contributions of hepatic innate immune cells.
Main Results:
- Innate immune cells in the liver are primed in a memory-effector state for rapid responses.
- Specific innate immune subsets are implicated in initiating chronic liver inflammation and subsequent fibrosis.
Conclusions:
- Understanding the precise roles of hepatic innate immune cells is crucial for addressing inflammatory liver diseases.
- Targeting these cells may offer therapeutic strategies for liver fibrosis.
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