Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2008-9-22
pubmed:abstractText
Elastic fibers are essential extracellular matrix macromolecules comprising an elastin core surrounded by fibrillin-rich microfibrils. Fibulin-5, a microfibril, has been identified as one of the secreted extracellular matrix proteins that shows function as a scaffold for elastic fibers. However, the distribution of fibulin-5 in the skin is not clear. We report a case of a 43-year-old woman with erythema and subsequent wrinkling that met the clinical and histological criteria for mid-dermal elastolysis. We investigate the mechanism by which this disease occurs. The distribution of elastin, CD68, matrix metalloproteinase (MMP)-9, and fibulin-5 was examined immunohistochemically from both erythematous and wrinkled skin. There were numerous CD68 and MMP-9-producing histiocytes and giant cells in the erythematous lesions. Faint fibrillar staining of fibulin-5 was found in the deep dermis. In the wrinkled skin, there were few CD68 histiocytes or giant cells. Elastin immunoreactivity disappeared from the mid-dermis. Fibulin-5 colocalized in the lower dermis, shorter than in the erythema. Mid-dermal elastolysis may be initiated by MMP-9 produced by histiocytes and giant cells through its degradation of elastic fibers. In the lower dermis of the wrinkled skin, the fragmented expression of fibulin-5 was associated with the incomplete reproduction of the elastic fibers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1533-0311
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
477-80
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Immunohistochemical investigation of mid-dermal elastolysis with a history of erythema.
pubmed:affiliation
Department of Dermatology, Nihon University School of Medicine, Tokyo, Japan. takane@med.nihon-u.ac.jp
pubmed:publicationType
Journal Article, Case Reports