Linked Life Data

7860994

Source:http://linkedlifedata.com/resource/pubmed/id/7860994

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-3-20
pubmed:abstractText
To examine the effects of different wavelengths of ultraviolet (UV) radiation on tumor necrosis factor (TNF) production, we took advantage of mice carrying a chloramphenicol acetyl transferase (CAT) reporter transgene bearing the entire TNF promoter and 3'-untranslated region. Aside from constitutive expression in the thymus, CAT activity was detected only in locally UVB- or UVC-irradiated skin. After UVB irradiation, markedly greater amounts of CAT activity were traced to the dermis rather than the epidermis; by contrast, almost all CAT activity was localized to the epidermis after UVC irradiation. Fibroblasts have not been shown previously to express the TNF gene, i.e., the TNF gene is highly methylated and inaccessible to exogenous modulation in 3T3 fibroblasts. However, the present report reveals that cultured dermal fibroblasts are capable of producing both CAT and TNF in response to treatment in vitro with either UVB irradiation, UVC irradiation, or lipopolysaccharide. These findings indicate that dermal fibroblasts may serve not only as a target for but also as a source of TNF.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-202X
pubmed:author
pubmed:issnType
Print
pubmed:volume
104
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
318-22
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Expression of the tumor necrosis factor gene by dermal fibroblasts in response to ultraviolet irradiation or lipopolysaccharide.
pubmed:affiliation
Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas 75235-9050.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't