Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-3-5
pubmed:abstractText
In this study, we investigated the c-myc expression by tonsillar germinal center (GC) B cells using reverse transcriptase-polymerase chain reaction, flow cytometry, Western blot and in situ immunohistochemical methods. The results obtained demonstrate elevated levels of c-myc mRNA and of Myc protein in GC B cells compared to those of the other resting or activated tonsillar B cells. Separation of GC B cells into centroblasts and centrocytes revealed that, while differing in their cell cycle status, surface marker expression and morphology, the two cell types had the same propensity to apoptosis and elevated Myc protein expression, thus reinforcing the notion of a close correlation between these two events. Based upon these observations and other considerations it is proposed that elevation of Myc proteins confers to GC B cells a particular propensity to apoptosis, while the subsequent decision between progression into the cell cycle or programmed cell death is dictated by other signals that are delivered in the GC and perhaps operate at the level of other proto-oncogenes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
234-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
The propensity to apoptosis of centrocytes and centroblasts correlates with elevated levels of intracellular myc protein.
pubmed:affiliation
Servizio di Immunologia Clinica, Istituto Nazionale per la Ricerca sul Cancro, Genova, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't