{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T07:20:17Z","timestamp":1778570417179,"version":"3.51.4"},"reference-count":49,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2023,12,27]],"date-time":"2023-12-27T00:00:00Z","timestamp":1703635200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012331","name":"LEO Fondet","doi-asserted-by":"publisher","award":["114"],"award-info":[{"award-number":["114"]}],"id":[{"id":"10.13039\/501100012331","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acad Dermatol Venereol"],"published-print":{"date-parts":[[2024,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Chronic hand eczema (CHE) is a highly prevalent, heterogeneous, skin disease that encompasses different aetiological and clinical subtypes. Severe CHE without atopic dermatitis has been associated with systemic inflammation; yet it remains unknown if specific CHE subtypes leave distinct, systemic, molecular signatures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To characterize the inflammatory plasma signature of different aetiological and clinical CHE subtypes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We assessed expression levels of 266 inflammatory and cardiovascular disease risk plasma proteins as well as filaggrin gene mutation status in 51 well\u2010characterized CHE patients without concomitant atopic dermatitis and 40 healthy controls. Plasma protein expression was compared between aetiological and clinical CHE subgroups and controls both overall and according to clinical CHE severity. Correlation analyses for biomarkers, clinical and self\u2010reported variables were performed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Very severe, chronic allergic contact dermatitis (ACD) on the hands was associated with a mixed Type 1\/Type 2 systemic immune activation as compared with controls. Circulating levels of Type 1\/Type 2 inflammatory biomarkers correlated positively with clinical disease severity among CHE patients with ACD. No biomarkers were found, that could discriminate between aetiological subtypes, for example, between ACD and irritant contact dermatitis. Hyperkeratotic CHE showed a distinct, non\u2010atopic dermatitis\u2010like, systemic footprint with upregulation of markers associated with Type 1 inflammation and tumour necrosis factor alpha, but not Type 2 inflammation. Increased levels of CCL19 and CXCL9\/10 could discriminate hyperkeratotic CHE from both vesicular and chronic fissured CHE, whereas no difference was found between the latter two subtypes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Profiling of systemic biomarkers showed potential for identifying certain CHE subtypes. Peripheral blood levels of inflammatory biomarkers were associated and correlated with the clinical disease severity of chronic ACD on the hands, underlining that this is a systemic disease. We question whether hyperkeratotic CHE should be classified as eczema.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jdv.19742","type":"journal-article","created":{"date-parts":[[2023,12,28]],"date-time":"2023-12-28T02:34:14Z","timestamp":1703730854000},"page":"1101-1111","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Inflammatory plasma signature of chronic hand eczema: Associations with aetiological and clinical subtypes"],"prefix":"10.1111","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8966-4545","authenticated-orcid":false,"given":"Anna Sophie","family":"Quaade","sequence":"first","affiliation":[{"name":"Department of Dermatology and Allergy, The National Allergy Research Centre Copenhagen University Hospital, Herlev\u2010Gentofte  Hellerup Denmark"},{"name":"University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4724-4999","authenticated-orcid":false,"given":"Xing","family":"Wang","sequence":"additional","affiliation":[{"name":"Division of Clinical Immunology, Department of Medicine Icahn School of Medicine at Mount Sinai  New York City New York USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7699-2216","authenticated-orcid":false,"given":"Julie B. 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