Linked Life Data

21120911

Source:http://linkedlifedata.com/resource/pubmed/id/21120911

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2011-6-28
pubmed:abstractText
A cost- and time-efficient means to define the prognosis of patients with chronic lymphocytic leukemia (CLL) is desirable but does not yet exist. On the basis of the evidence that CLL cells have enhanced expression of the cyclic nucleotide phosphodiesterase isoform 7B (PDE7B), we hypothesized that PDE7B expression might provide such information. We assessed PDE7B mRNA expression using quantitative real-time PCR in peripheral blood mononuclear cells isolated from 85 patients and 30 normal subjects. We compared PDE7B mRNA expression with that of other disease features to determine if its expression correlates with the prognosis of patients with CLL. We found that CLL patients with PDE7B mRNA levels in the top quartile (greater than ninefold elevation relative to normal controls) have a several-year shorter median time-to-treatment (TTT, 36 months) compared to that of patients whose CLL cells express lower levels of PDE7B mRNA (TTT, 77 months, p=0.001). High PDE7B mRNA expression correlates with expression of zeta-chain-associated protein kinase 70 (ZAP-70), unmutated immunoglobulin heavy chain variable (IGHV) region genes and ?2 microglobulin (?2M), but use of a multivariate Cox model revealed that high PDE7B mRNA expression independently predicts a short TTT, even after adjusting for several other disease characteristics (ZAP-70 or CD38 expression, IGHV mutation status and Rai status). High expression of PDE7B is an unfavorable characteristic in CLL. Assessment of PDE7B mRNA expression thus appears to be a clinically useful biomarker to define the prognosis of patients with CLL.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1097-0215
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 UICC.
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
129
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1162-9
pubmed:meshHeading
pubmed-meshheading:21120911-Adult, pubmed-meshheading:21120911-Aged, pubmed-meshheading:21120911-Case-Control Studies, pubmed-meshheading:21120911-Cyclic Nucleotide Phosphodiesterases, Type 7, pubmed-meshheading:21120911-Disease Progression, pubmed-meshheading:21120911-Female, pubmed-meshheading:21120911-Follow-Up Studies, pubmed-meshheading:21120911-Humans, pubmed-meshheading:21120911-Immunoglobulin Heavy Chains, pubmed-meshheading:21120911-Immunoglobulin Variable Region, pubmed-meshheading:21120911-Leukemia, Lymphocytic, Chronic, B-Cell, pubmed-meshheading:21120911-Male, pubmed-meshheading:21120911-Middle Aged, pubmed-meshheading:21120911-Prognosis, pubmed-meshheading:21120911-RNA, Messenger, pubmed-meshheading:21120911-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:21120911-Survival Rate, pubmed-meshheading:21120911-Time Factors, pubmed-meshheading:21120911-ZAP-70 Protein-Tyrosine Kinase
pubmed:year
2011
pubmed:articleTitle
Cyclic nucleotide phosphodiesterase 7B mRNA: an unfavorable characteristic in chronic lymphocytic leukemia.
pubmed:affiliation
Department of Pharmacology, University of California, San Diego, La Jolla, CA 92093-0636, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural