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Related Experiment Video

Updated: May 7, 2026

Laparoscopic Technique for Serial Collection of Liver and Mesenteric Lymph Nodes in Macaques

Laparoscopic Technique for Serial Collection of Liver and Mesenteric Lymph Nodes in Macaques

Published on: May 2, 2017

Immune surveillance by the liver.

Craig N Jenne¹, Paul Kubes

¹1] Calvin, Phoebe & Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada. [2] Department of Critical Care Medicine, University of Calgary, Calgary, Alberta, Canada.

Nature Immunology

|September 20, 2013

Summary

The liver acts as a crucial immune organ, defending against infections by capturing pathogens. It balances immune activation and tolerance to prevent harmful responses to harmless substances.

Area of Science:

Immunology
Hepatology
Infectious Disease

Background:

The liver receives dual blood supply (portal vein and hepatic artery), positioning it uniquely for immune surveillance.
It harbors diverse innate and adaptive immune cells essential for detecting and clearing blood-borne pathogens.

Purpose of the Study:

To elucidate the liver's role as a frontline immunological organ.
To understand the mechanisms of pathogen detection, immune response coordination, and immune tolerance within the liver.

Main Methods:

Analysis of immune cell populations and their functions in the liver.
Investigation of immune responses to pathogens and exogenous molecules.
Examination of regulatory mechanisms controlling liver immunity.

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Long Term Intravital Multiphoton Microscopy Imaging of Immune Cells in Healthy and Diseased Liver Using CXCR6.Gfp Reporter Mice

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Main Results:

The liver possesses specialized immune cells for pathogen capture and clearance.
Immune cells in the liver orchestrate pathogen clearance, leukocyte recruitment, and antigen presentation.
Tight regulation ensures immune tolerance to nonpathogenic substances, preventing inappropriate responses.

Conclusions:

The liver functions as a critical immunological organ, actively defending against blood-borne infections.
A key feature of liver immunity is its ability to balance pathogen activation with tolerance to harmless antigens.