2. Academic Validation
  3. Sympathetic-epithelial crosstalk governs tissue-resident memory T cell immunosurveillance in the skin

Sympathetic-epithelial crosstalk governs tissue-resident memory T cell immunosurveillance in the skin

  • Cell. 2026 Mar 5;189(5):1323-1340.e25. doi: 10.1016/j.cell.2025.12.043.
Peng Zhang 1,  Juju Miao 2,  Haoyue Yu 3,  Hualin Yu 3,  Chao Liu 3,  Luming Zhao 4,  Ping Yang 5,  Ting Zhou 6,  Bing Zhang 7
Affiliations

Affiliations

  • 1 School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China; Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, China.
  • 2 School of Medicine, Westlake University, Hangzhou, Zhejiang, China; Fudan University Shanghai, Shanghai, China.
  • 3 School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.
  • 4 School of Medicine, Westlake University, Hangzhou, Zhejiang, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.
  • 5 Department of Dermatology-Venereology, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, Zhejiang, China.
  • 6 School of Medicine, Westlake University, Hangzhou, Zhejiang, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China. Electronic address: [email protected].
  • 7 School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China; Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, China; Shenzhen Medical Academy of Research and Translation (SMART), Shenzhen, China. Electronic address: [email protected].
PMID: 41616781 DOI: 10.1016/j.cell.2025.12.043
Abstract

Effective host defense and immunosurveillance at barrier tissues require coordinated functions of multiple cell types. Here, we show that in the skin, sympathetic nerves engage with epidermal keratinocytes to regulate the local density of tissue-resident memory CD8+ T (TRM) cells, thereby influencing regional Cancer immunosurveillance. Sympathetic nerves do not communicate directly with CD8+ TRM cells. Instead, they form synapse-like structures near basal keratinocytes and dynamically modulate epithelial-derived signals essential for skin CD8+ TRM formation via norepinephrine-ADRB2 signaling. Reduced sympathetic tone elevates epithelial-derived signals to promote CD8+ TRM development in the skin epithelium, while heightened sympathetic activity during acute stress dampens this process. Our findings unveil a neuro-epithelial-immune tri-lineage axis that calibrates local CD8+ TRM abundance in the skin, enabling rapid adjustment of immunosurveillance strength at the barrier interface by inputs from the sympathetic nervous system.

Keywords

epidermal keratinocytes; neuroimmune interactions; peripheral nerves; sympathetic nerves; tissue-resident memory T cells.

Figures
Products
Inhibitors & Agonists
Other Products