Is the Nervous System More Important Than the Immune System in Itch and Atopic Dermatitis?

Q2 Medicine Journal of Investigative Dermatology Symposium Proceedings Pub Date : 2018-12-01 Epub Date: 2018-11-22 DOI:10.1016/j.jisp.2018.10.002
Ethan A. Lerner
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在瘙痒和特应性皮炎中神经系统比免疫系统更重要吗?
特应性皮炎是一种常见的皮肤疾病,其特征是严重瘙痒、慢性炎症和神经纤维密度增加。人们一直认为,神经变化是对持续炎症的反应。在过敏性皮炎小鼠模型中,我们使用了随时间的荧光标记外周感觉神经在卵白蛋白表皮致敏期间的体内成像。连续数月的皮神经分支和血管可视化显示,周围感觉神经在抗原暴露后48小时内开始寻路。皮肤内神经肽能纤维的神经支配密度和乔木复杂性在数天内增加。神经萌芽先于血管化、血管通透性和免疫浸润的改变。在致敏期间阻断神经激活可以阻止卵清蛋白诱导的神经募集和模式重组的变化,以及随后的炎症浸润和抓伤行为。这些数据暗示了最近发现的瘙痒分子在调节炎症反应的各个步骤中的不同作用。因此,与神经变化对炎症和抓挠的反应性的传统观点相反,这些数据表明,慢性湿疹模型中的过敏刺激需要在炎症级联反应的形成和维持过程的早期神经募集和激活。
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期刊介绍: Journal of Investigative Dermatology Symposium Proceedings (JIDSP) publishes peer-reviewed, invited papers relevant to all aspects of cutaneous biology and skin disease. Papers in the JIDSP are often initially presented at a scientific meeting. Potential topics include biochemistry, biophysics, carcinogenesis, cellular growth and regulation, clinical research, development, epidemiology and other population-based research, extracellular matrix, genetics, immunology, melanocyte biology, microbiology, molecular and cell biology, pathology, pharmacology and percutaneous absorption, photobiology, physiology, and skin structure.
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