Linked Life Data

3171624

Source:http://linkedlifedata.com/resource/pubmed/id/3171624

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1988-11-14
pubmed:abstractText
We have detected rearrangement in the breakpoint cluster region (bcr) on chromosome 22 in cells derived from seven chronic myelogenous leukemia (CML) patients who had no cytogenetic evidence of a chromosome abnormality. These Philadelphia (Ph)-negative, bcr rearrangement-positive CML patients had clinical features and laboratory parameters that bore a strong resemblance to those of Ph-positive CML; all patients have shown a favorable response to hydroxyurea, busulphan, or alpha interferon (IFN-alpha) therapy. In one patient, because of the deletion of distal 3' sequences, detection of bcr rearrangement required a large probe that recognized proximal 5' sequences. Cells obtained from five patients were studied by Northern blotting and showed an aberrant 8 kilobase (kb) mRNA indistinguishable from the bcr-abl transcript that is felt to be a pathogenetic factor in Ph-positive CML. In three patients with a normal karyotype, bcr rearrangement was detected at the time of hematologic remission, and represented the only evidence for persistent malignancy. Our results suggest that: (1) the presence of bcr rearrangement in CML is associated with clinical features of Ph-positive disease, even in the absence of the Ph chromosome; (2) deletions occur within bcr and necessitate the use of probes covering both 5' and 3' DNA segments for accurate diagnosis; (3) molecular analysis may provide a useful approach to the follow-up of leukemia therapy in some patients; and (4) these patients respond to hydroxyurea, busulphan, and IFN-alpha therapy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0732-183X
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1569-75
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Philadelphia-negative chronic myelogenous leukemia with breakpoint cluster region rearrangement: molecular analysis, clinical characteristics, and response to therapy.
pubmed:affiliation
Department of Clinical Immunology and Biological Therapy, M.D. Anderson Hospital and Tumor Institute, Houston, TX 77030.
pubmed:publicationType
Journal Article