Objectif Atopic dermatitis (AD) is a chronic skin inflammatory disease affecting 10-20% of children worldwide. The etiology of AD is incompletely understood, but many elements (e.g. genetic, environmental or immune) are thought to contribute to the pathogenesis. The skin is specifically enriched in mast cells (MCs) and innervated by a network of abundant sensory neurons. New findings suggest that nociceptive sensory neurons (nociceptors) might regulate the development of immune responses. Skin MCs also express a transcriptional signature of genes encoding neuropeptide receptors (e.g. Mrgprb2: the receptor for the substance P [SP]), through which MCs might uniquely interact with nociceptors. Based on solid preliminary data, the central hypothesis of this project is that SP-producing nociceptor/Mrgprb2+ MC interactions play a critical role in AD pathogenesis. Using a relevant mouse model of AD and innovative imaging approaches, we now aim to elucidate [1] which subset(s) of nociceptor is involved in AD, [2] how SP+ nociceptor/Mrgprb2+ MC interact in our model and in skin lesions from patients diagnosed with AD and [3] how such interactions might favor skin barrier dysfunction. This project promises to provide new insights into skin neuro-immune interactions and may lead to the discovery of new therapeutic targets to treat AD pathology. Champ scientifique medical and health sciencesclinical medicinepneumologyasthmamedical and health scienceshealth sciencesinflammatory diseasesmedical and health sciencesclinical medicinedermatologymedical and health sciencesbasic medicineimmunologymedical and health sciencesbasic medicinepathology Mots‑clés NeuroImmunology Nociceptors Mast cells Skin Barrier Atopic Dermatitis Allergic disorders Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Thème(s) MSCA-IF-2016 - Individual Fellowships Appel à propositions H2020-MSCA-IF-2016 Voir d’autres projets de cet appel Régime de financement MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF) Coordinateur INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE Contribution nette de l'UE € 185 076,00 Adresse RUE DE TOLBIAC 101 75654 Paris France Voir sur la carte Région Ile-de-France Ile-de-France Paris Type d’activité Research Organisations Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 185 076,00
