Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1989-7-31
pubmed:abstractText
We have observed that a 2-h pretreatment of murine B cells with cholera toxin (CT) renders the B cell incapable of receiving an activation signal via surface Ig as measured by cell volume increase and entry into the S phase of the cell cycle. In contrast, CT pretreatment does not inhibit the delivery of a signal by IL-4, as measured by increase in cell volume. In fact, CT pretreated B cells are able to respond to anti-Ig in the presence of IL-4, as measured by both an increase in cell size and entry into S suggesting that IL-4 overcomes the effects of CT on normal B cell activation. Despite blocking the anti-Ig-mediated entry into the cell cycle, CT was not able to interfere with the induction of nonresponsiveness by anti-Ig in normal B cells or with the delivery of growth-inhibitory signal to the B cell lymphoma WEHI-231. These results suggest that there are two signaling pathways mediated by cross-linking of surface Ig: one pathway sensitive and the other insensitive to modulation by CT.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
143
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
458-63
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Cholera toxin-sensitive and insensitive signaling via surface Ig.
pubmed:affiliation
Immunology Unit, University of Rochester Cancer Center, NY 14642.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't