rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
1994-8-1
|
pubmed:abstractText |
Interleukin-1 alpha (IL-1 alpha) is a potent modulator of endothelial cell-surface properties and function as well as an inhibitor of endothelial cell proliferation. The present experiments demonstrate that IL-1 alpha can also suppress gap junction activity as measured by dye-coupling assays on human umbilical vein endothelial cells (HUVEC). The effect of IL-1 alpha is dose- and time-dependent, inhibitable by IL-1 receptor antagonist, independent of changes in intracellular [Ca+2], and distinguishable from the short-term effects of phorbol 12-myristate 13-acetate. Interestingly, IL-1 alpha was not effective in reducing cell communication in senescent HUVEC which exhibit lower coupling than early-passage cells and for which elevated levels of IL-1 alpha transcript and polypeptide had been reported previously. These results suggest a novel role for IL-1 alpha in the regulation of intercellular communication, which may be related to its role as a regulator of endothelial differentiation and senescence.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
0014-4827
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
213
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
218-23
|
pubmed:dateRevised |
2007-11-15
|
pubmed:meshHeading |
pubmed-meshheading:8020594-Alkaloids,
pubmed-meshheading:8020594-Calcium,
pubmed-meshheading:8020594-Cell Communication,
pubmed-meshheading:8020594-Cells, Cultured,
pubmed-meshheading:8020594-Dose-Response Relationship, Drug,
pubmed-meshheading:8020594-Endothelium, Vascular,
pubmed-meshheading:8020594-Humans,
pubmed-meshheading:8020594-Intercellular Junctions,
pubmed-meshheading:8020594-Interleukin-1,
pubmed-meshheading:8020594-Kinetics,
pubmed-meshheading:8020594-Protein Kinase C,
pubmed-meshheading:8020594-Recombinant Proteins,
pubmed-meshheading:8020594-Staurosporine,
pubmed-meshheading:8020594-Tetradecanoylphorbol Acetate,
pubmed-meshheading:8020594-Umbilical Veins
|
pubmed:year |
1994
|
pubmed:articleTitle |
Interleukin-1 alpha suppresses gap junction-mediated intercellular communication in human endothelial cells.
|
pubmed:affiliation |
Department of Biochemistry and Molecular Biology, George Washington University Medical Center, Washington, DC 20037.
|
pubmed:publicationType |
Journal Article
|