Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2010-11-8
pubmed:abstractText
Chronic lymphocytic leukemia is less effectively treated than other B cell malignancies with the anti-CD20 agent, rituximab, presumably due, at least in part, to low CD20 expression. CD20 expression is typically measured by flow cytometry, which may not be quantitative. This study was undertaken to measure total CD20 protein in CLL B cells using quantitative immunoblot analysis. The results demonstrated that total CD20 protein levels were consistently decreased by ?60% in CLL B cells with low CD20 fluorescence staining. Surprisingly, real-time polymerase chain reaction analysis showed that CD20 mRNA levels were normal or close to normal, depending on the comparative B cell population, and did not correlate well with protein expression. We conclude that CD20 protein is substantially decreased in CLL due to a post-transcriptional defect.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1873-5835
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1670-3
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Quantification of CD20 mRNA and protein levels in chronic lymphocytic leukemia suggests a post-transcriptional defect.
pubmed:affiliation
Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't