Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1998-1-29
pubmed:abstractText
Cultures of myenteric ganglia from adult guinea-pigs were used to study the influence of neuroactive substances on glial cells by monitoring changes in their morphology. The following substances had no effect on glial morphology: adenosine, ATP, carbachol, glutamate, bradykinin, isoprenaline, prostaglandin E2, sodium nitroprusside and lipopolysaccharide. The only substances found to affect glial morphology were phorbol esters, and in particular phorbol 12-myrisate 13-acetate (PMA), which acted at the nM range. Glial cells, which were normally polygonal, assumed a stellate shape within 30-60 min after the addition of PMA. Protein kinase C (PKC) inhibitors did not block this effect, and PKC activators did not mimic it. The effect of PMA was also not mediated by changes in the intracellular concentrations of either Ca2+, H+ or cyclic AMP. Dye coupling among glial cells was blocked by PMA. The phorbol ester-mediated effect on glial structure may have profound influence on neuronal organization and function.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0304-3940
pubmed:author
pubmed:issnType
Print
pubmed:day
19
pubmed:volume
233
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
61-4
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Phorbol esters alter the morphology of cultured guinea-pig myenteric glia via a protein kinase C-independent mechanism.
pubmed:affiliation
Laboratory of Experimental Surgery, Hebrew University-Hadassah Medical School, Jerusalem, Israel. hananim@cc.huji.ac.il
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't