{
  "id": 234469,
  "title": "Critical immune pathway may explain how skin allergies can trigger systemic reactions",
  "url": "https://urgent.news/2026/08/06/critical-immune-pathway-may-explain-how-skin-allergies-can-trigger",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-08-06T20:20:04.000Z",
  "source": {
    "name": "Medical Xpress",
    "slug": "medical-xpress",
    "url": "https://medicalxpress.com/news/2026-08-critical-immune-pathway-skin-allergies.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "Scientists from Tokyo University of Science and Kyoto University have discovered a critical immune pathway that explains how skin allergies can trigger systemic reactions. The study, published in Proceedings of the National Academy of Sciences, reveals that the immune signaling protein IL-13 acts on dendritic cells, specifically type 2 classical dendritic cells (cDC2), enhancing their ability to present allergens to other immune cells. This process, called licensing, promotes immune responses that produce high-affinity IgE antibodies against allergens, which can lead to systemic anaphylaxis. To investigate this process, the researchers developed a murine CAS model that mimics the atopic march by repeatedly exposing the skin to an allergen, ultimately priming the mice to produce large amounts of high-affinity IgE antibodies when they later encounter another allergen. The findings could potentially lead to new therapeutic approaches for managing skin allergies and their associated systemic reactions.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}