Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1983-5-5
pubmed:abstractText
A variety of tumor promoters such as the phorbol esters were found to be capable of inducing the viral cycle in cell lines latently infected with Epstein-Barr virus (EBV). We tested two classes of new tumor promoters; indole alkaloids and polyacetates, for their ability to induce the synthesis of the Epstein-Barr virus determined early antigen (EA) complex. Teleocidin and lyngbyatoxin A are indole alkaloids. Aplysiatoxin and debromoaplysiatoxin are polyacetates. Of these four tumor promoters all but debromoaplysiatoxin induced the synthesis of the EA complex. However, in combination with 3 mM n-butyrate, all four induced EA synthesis. The potent tumor promoters teleocidin, lyngbyatoxin A and aplysiatoxin induced maximal synthesis of EA at the concentration of 5 to 10 ng/ml, whereas the weak tumor promoter debromoaplysiatoxin required a concentration of 250 ng/ml to achieve maximal induction. Phorbol esters induce quick morphological changes and aggregation of human blood lymphocytes. The latter phenomenon has been interpreted as the expression of a "cell binding phenotype" (Patarroyo et al., in press). We showed that all four promoters induced aggregation of human lymphocytes at similar concentrations. The induction seemed to be a common effect which could be induced by both strong and weak tumor promoters.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Alkaloids, http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Viral, http://linkedlifedata.com/resource/pubmed/chemical/Caenorhabditis elegans Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Carcinogens, http://linkedlifedata.com/resource/pubmed/chemical/Epstein-Barr virus early antigen, http://linkedlifedata.com/resource/pubmed/chemical/Lactones, http://linkedlifedata.com/resource/pubmed/chemical/Lyngbya Toxins, http://linkedlifedata.com/resource/pubmed/chemical/Marine Toxins, http://linkedlifedata.com/resource/pubmed/chemical/Phorbol Esters, http://linkedlifedata.com/resource/pubmed/chemical/Protein Kinase C, http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Cell Surface, http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Drug, http://linkedlifedata.com/resource/pubmed/chemical/Unc-13 protein, C elegans, http://linkedlifedata.com/resource/pubmed/chemical/aplysiatoxin, http://linkedlifedata.com/resource/pubmed/chemical/debromoaplysiatoxin, http://linkedlifedata.com/resource/pubmed/chemical/lyngbyatoxin A, http://linkedlifedata.com/resource/pubmed/chemical/phorbol ester receptor, http://linkedlifedata.com/resource/pubmed/chemical/teleocidin
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0020-7136
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
7-11
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Activation of the EBV-cycle and aggregation of human blood lymphocytes by the tumor promoters teleocidin, lyngbyatoxin A, aplysiatoxin and debromoaplysiatoxin.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't