920-Nociceptor Subsets Regulate Skin Inflammation and Itch

Paper Talk · May 8, 2026 · 20m

This research identifies two independent neuronal circuits in the skin that separate the regulation of inflammation from the sensation of itch during allergic contact dermatitis. By using advanced single-cell RNA sequencing, the authors discovered that a specific group of NP1 nociceptors undergoes a unique transcriptional reprogramming similar to a nerve injury response. These modified neurons are solely responsible for driving itch-evoked behavior, whereas a separate group of TRPV1+ neurons functions to suppress neutrophil infiltration and prevent excessive tissue damage. This functional…