Linked Life Data

10545994

Source:http://linkedlifedata.com/resource/pubmed/id/10545994

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1999-11-19
pubmed:abstractText
Thrombospondin forms a 'molecular bridge' between phagocytic and apoptotic cells through interaction with alphavbeta3/CD36. We report here that engagement of CD47, a newly described thrombospondin receptor, by immobilized monoclonal antibody against CD47 or by thrombospondin induced in all B-cell chronic lymphocytic leukemia clones the cytoplasmic features of apoptosis (cell shrinkage, decrease in mitochondrial transmembrane potential and phosphatidylserine externalization) without the nuclear features (chromatin condensation, appearance of single-stranded DNA, DNA fragmentation and cleavage of poly ADP-ribose polymerase). These cytoplasmic events of apoptosis were not prevented by the addition of caspase inhibitor z-VAD-fmk, or by the presence of survival factors (such as interleukin-4 and gamma interferon) or cell activation. Morphological studies confirmed the integrity of the nucleus and showed swelling of the mitochondria. This caspase-independent death pathway may be relevant to the development of alternate therapeutic strategies in chronic lymphocytic leukemia, which remains an incurable disease.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1078-8956
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1277-84
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
CD47 ligation induces caspase-independent cell death in chronic lymphocytic leukemia.
pubmed:affiliation
Laboratoire d'allergie, Centre de Recherche du Centre Hospitalier de l' Université de Montréal, Hôpital Notre-Dame, 1560 rue Sherbrooke Est, Université de Montréal H2L 4M1, Quebec, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't