Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1992-2-27
pubmed:abstractText
Despite their different pathogeneses, allergic and irritant contact dermatitis show a remarkable similarity with respect to clinical appearance, histology, and immunohistology. To further analyze this apparent contradiction, our study was designed to meticulously compare cellular infiltrates in irritant and allergic patch-test reactions by immunostaining with a broad panel of monoclonal antibodies. For this purpose, skin biopsies from allergic and irritant patch-test reactions of similar inflammatory degree were obtained from the same probands. We found that after 72 h both types of reaction were characterized by an identical dermal infiltrate consisting mainly of memory T cells, many of which were activated, and macrophages. Dermal and epidermal Langerhans cell density and HLA--DR expression of keratinocytes were also virtually identical. Our results show that antigen recognition by specific memory T cells as well as irritants can finally induce the same pattern of inflammation, including activation of T cells obviously independent of exogenous antigen.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-202X
pubmed:author
pubmed:issnType
Print
pubmed:volume
98
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
166-70
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed-meshheading:1370676-Adult, pubmed-meshheading:1370676-Aged, pubmed-meshheading:1370676-Antigens, CD, pubmed-meshheading:1370676-Antigens, CD1, pubmed-meshheading:1370676-Antigens, CD2, pubmed-meshheading:1370676-Antigens, CD3, pubmed-meshheading:1370676-Antigens, CD4, pubmed-meshheading:1370676-Antigens, CD5, pubmed-meshheading:1370676-Antigens, CD8, pubmed-meshheading:1370676-Antigens, Differentiation, T-Lymphocyte, pubmed-meshheading:1370676-Cell Count, pubmed-meshheading:1370676-Dermatitis, Atopic, pubmed-meshheading:1370676-Dermatitis, Contact, pubmed-meshheading:1370676-Female, pubmed-meshheading:1370676-Humans, pubmed-meshheading:1370676-Langerhans Cells, pubmed-meshheading:1370676-Male, pubmed-meshheading:1370676-Middle Aged, pubmed-meshheading:1370676-Receptors, Antigen, T-Cell, pubmed-meshheading:1370676-Receptors, Immunologic, pubmed-meshheading:1370676-Skin Tests, pubmed-meshheading:1370676-T-Lymphocytes
pubmed:year
1992
pubmed:articleTitle
Common pathogenetic pathways in allergic and irritant contact dermatitis.
pubmed:affiliation
Department of Dermatology, University of Kiel, FRG.
pubmed:publicationType
Journal Article