#skin

All articles tagged with "skin"

Hidden in Hair Follicles, Immune ‘Sentinel’ Cells May Help Skin Detect Threats

Researchers report previously unrecognized immune surveillance structures in hair follicles, suggesting the skin may monitor microbes and environmental exposure through more specialized local gateways than previously

Key Takeaways

Scientists found previously unrecognized immune surveillance structures in hair follicles.
The cells resemble M cells known from the gut and airway.

DT Editorial Team·Apr 25, 2026·via medicalxpress.com

Scientists Crack the Skin's Hidden Immune Alarm System

A Chinese research team has uncovered the signaling pathway through which keratinocytes in the skin's outer layer detect local damage and broadcast systemic immune alerts — resolving a long-standing mystery about how local threats become body-wide responses.

Key Takeaways

Chinese researchers mapped the complete signaling pathway by which skin keratinocytes convert local damage into body-wide immune alerts via cytokine release
The pathway is implicated in psoriasis, eczema, and contact dermatitis — conditions caused by excessive or misdirected keratinocyte alarm activation

DT Editorial Team·Mar 23, 2026·via medicalxpress.com