Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-6-22
pubmed:abstractText
It is well established that the functional state of sebaceous glands in vivo is a tightly regulated process orchestrated through the interaction of male sex hormones and functional androgen receptors expressed on sebocytes. In the last few years, however, it has become increasingly apparent that sebocytes like epidermal keratinocytes express a variety of cytokines which are implicated in inflammatory and immune responses. For example, sebocytes in vivo have been found to highly express tumor necrosis factor alpha (TNF-alpha) as determined by immunohistochemical and electron-microscopic methods. Moreover, certain neuropeptides including vascular intestinal peptide and proopiomelanocortin (POMC) peptides as well as their receptors have been localized within the pilosebaceous unit of murine and human skin. Since POMC peptides such as alpha-melanocyte-stimulating hormone have recently been shown to exert important immunoregulatory effects by antagonizing the function of proinflammatory cytokines (e.g interleukin 1, interleukin 6 and TNF-alpha), induction of immunosuppressive cytokines (like interleukin 10), modulation of costimulatory molecule expression (e.g. B7-2) or suppression of macrophage-derived nitric oxide, complex interactions between these mediators and their target cells within the pilosebaceous gland seem to exist. The successful cultivation of sebocytes will provide a model by which the effect of these mediators can be studied in detail in order to shed light onto the various pathophysiological conditions of sebaceous glands.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1018-8665
pubmed:author
pubmed:issnType
Print
pubmed:volume
196
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
75-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
The pilosebaceous unit is part of the skin immune system.
pubmed:affiliation
Department of Dermatology, University of Münster, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't