ArticleDiabetes2024
A Neuron-Mast Cell Axis Regulates Skin Microcirculation in Diabetes.
Article in Diabetes, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Exploring Sexual Dimorphism and Genetic Variability in Cutaneous Microhemodynamics in BALB/c, C57BL/6J, and KM Mice.Journal of vascular research · 2026Article
- Neuroimmune Interactions in Inflammatory Skin and Intestinal Diseases.Journal of inflammation research · 2026Review
- Multidimensional Regulatory Mechanisms and Targeted Therapeutic Strategies for Inhibited Keratinocyte Proliferation in Diabetic Wounds.Drug design, development and therapy · 2026Review
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17 authors.
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Abstract
Changes in microcirculation lead to the progression of organ pathology in diabetes. Although neuroimmune interactions contribute to a variety of conditions, it is still unclear whether abnormal neural activities affect microcirculation related to diabetes. Using laser speckle contrast imaging, we examined the skin of patients with type 2 diabetes and found that their microvascular perfusion was significantly compromised. This phenomenon was replicated in a high-fat diet-driven murine model of type 2 diabetes-like disease. In this setting, although both macrophages and mast cells were enriched in the skin, only mast cells and associated degranulation were critically required for the microvascular impairment. Sensory neurons exhibited enhanced TRPV1 activities, which triggered mast cells to degranulate and compromise skin microcirculation. Chemical and genetic ablation of TRPV1+ nociceptors robustly improved skin microcirculation status. Substance P (SP) is a neuropeptide and was elevated in the skin and sensory neurons in the context of type 2 diabetes. Exogenous administration of SP resulted in impaired skin microcirculation, whereas neuronal knockdown of SP dramatically prevented mast cell degranulation and consequently improved skin microcirculation. Overall, our findings indicate a neuron-mast cell axis underlying skin microcirculation disturbance in diabetes and shed light on neuroimmune therapeutics for diabetes-related complications. ARTICLE HIGHLIGHTS:
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