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Isolating Lymphocytes from the Mouse Small Intestinal Immune System
Published on: February 28, 2018
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Chemical sensing in development and function of intestinal lymphocytes
Luisa Cervantes-Barragan1, Marco Colonna1
1Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA.
Current Opinion in Immunology
|February 18, 2018
Summary
The aryl hydrocarbon receptor (AHR) acts as a crucial sensor in the gut, helping immune cells distinguish between harmful pathogens and beneficial microbes. This signaling pathway is vital for maintaining intestinal immune homeostasis and function.
Area of Science:
- Immunology
- Gastroenterology
- Environmental Health
Background:
- The intestinal immune system must balance pathogen elimination with tolerance to commensal microbes and dietary antigens.
- The aryl hydrocarbon receptor (AHR) was initially identified as a sensor for environmental toxins like dioxin.
- AHR is now recognized as a key mediator of immune responses within the intestine.
Purpose of the Study:
- To review recent advancements in understanding the role of AHR signaling in the intestinal immune system.
- To highlight AHR's function in innate lymphoid cells (ILCs), T cells, and B cells within the gut.
Main Methods:
- Literature review of recent research on AHR signaling in intestinal immunity.
- Focus on studies investigating AHR's impact on ILCs, T cells, and B cells in the gut.
Main Results:
- AHR acts as a critical sensor for environmental, microbial, and nutritional cues in the intestine.
- AHR signaling is essential for the development, maintenance, and function of intestinal immune cells.
- Recent studies reveal AHR's specific roles in intestinal ILCs, T cells, and B cells.
Conclusions:
- AHR is a pivotal regulator of intestinal immune responses, integrating environmental signals to maintain gut homeostasis.
- Understanding AHR pathways offers insights into managing inflammatory and infectious diseases of the gut.
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