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Neuron‒Mast Cell Cross-Talk in the Skin
Shiqun Zhang1, Tina L Sumpter1, Daniel H Kaplan1
1Department of Dermatology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
The Journal of Investigative Dermatology
|November 10, 2021
Summary
Skin mast cells and sensory neurons communicate to defend against microbes and in inflammatory diseases. This review explores their vital reciprocal interactions in skin conditions.
Area of Science:
- Immunology
- Neuroscience
- Dermatology
Background:
- Skin-resident mast cells (MCs) and cutaneous sensory neurons are key players in host defense and inflammatory conditions.
- MCs are activated by pathogens, releasing mediators that initiate immune responses and activate sensory neurons.
- Sensory neurons can detect pathogens, releasing neuropeptides that influence MC activity.
Purpose of the Study:
- To review the reciprocal interactions between cutaneous sensory neurons and mast cells.
- To highlight the significance of this neuro-immune cross-talk in the pathogenesis of skin diseases.
Main Methods:
- This is a review article, synthesizing existing research.
- Focuses on the interplay between cellular components of the skin's immune and nervous systems.
Main Results:
- Mast cells and sensory neurons engage in bidirectional communication.
- This cross-talk is crucial for modulating innate immunity and inflammatory responses in the skin.
- Pathogen detection by either cell type influences the other, creating a coordinated defense.
Conclusions:
- The intricate relationship between mast cells and sensory neurons is fundamental to skin homeostasis and disease.
- Understanding this neuro-immune axis offers potential therapeutic targets for inflammatory skin disorders.
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