{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,14]],"date-time":"2026-04-14T02:45:23Z","timestamp":1776134723943,"version":"3.50.1"},"reference-count":21,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2022,5,5]],"date-time":"2022-05-05T00:00:00Z","timestamp":1651708800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Wound Repair Regeneration"],"published-print":{"date-parts":[[2022,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Pemphigus vulgaris (PV) is an autoimmune bullous skin disease. Aquaporin 3 (AQP3) is a glycerol\/water channel involved in several physiological functions. Evaluation of the tissue expression and localization of AQP3 in the skin of PV patients. Twenty\u2010seven PV patients and 30 controls were included. The patients were subjected to history taking, clinical evaluation, Autoimmune Bullous Skin Disorder Intensity Score and 4\u2010mm punch biopsy. The biopsies were stained using anti\u2010human AQP3 antibody and the immunofluorescence pattern and intensity were evaluated using a scoring system and ImageJ software analysis. AQP3 was expressed in the basal epidermis in 27 (100%) and in the suprabasal epidermis in 19 PV patients (70.4%). It was expressed in all controls in basal and suprabasal layers. Intensity of AQP3 immunofluorescence was strong in 2 (7.4%), moderate in 19 (70.4%) and weak in 6 patients (22.2%) while it was strong in 18 (60%) and moderate in 12 controls (40%). AQP3 expression was significantly lower in patients than controls in the suprabasal epidermis (<jats:italic>p<\/jats:italic>\u00a0=\u20090.001). Patients with extensive disease had significantly weaker AQP3 intensity than those with marked disease (<jats:italic>p<\/jats:italic>\u00a0=\u20090.005) Downregulation of AQP3 in patients with PV, especially in the suprabasal layers and in extensive clinical disease, suggests a potential role of AQP3 in the pathogenesis of PV.<\/jats:p>","DOI":"10.1111\/wrr.13018","type":"journal-article","created":{"date-parts":[[2022,4,26]],"date-time":"2022-04-26T08:43:07Z","timestamp":1650962587000},"page":"448-452","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Downregulation of aquaporin 3 in patients with pemphigus vulgaris"],"prefix":"10.1111","volume":"30","author":[{"given":"Sara Bahaa","family":"Mahmoud","sequence":"first","affiliation":[{"name":"Dermatology Department, Faculty of Medicine Cairo University  Cairo Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marwah 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