Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2004-3-22
pubmed:abstractText
The Runx1/core binding factor-beta (CBFbeta) transcriptional complex is required for the establishment of hematopoiesis during development. Despite its critical role during development, a detailed analysis of Runx1 expression within specific lineages and developmental stages of the adult hematopoietic system is lacking. To address this, we have developed a Runx1-green fluorescent protein (GFP) knock-in mouse. We show that Runx1 is expressed in several hematopoietic lineages, including myeloid, B-lymphoid, and T-lymphoid cells. By contrast, Runx1 is weakly expressed in early erythroid cells, and its expression is rapidly extinguished during later stages of erythropoiesis. Runx1 expression is induced during early B-cell development and is expressed at a uniform level during all subsequent stages of B-cell development. Within the thymus, Runx1 is expressed at the highest level in CD4-CD8- double-negative thymocytes. In peripheral T cells, Runx1 is differentially expressed, with CD4+ T cells expressing 2- to 3-fold higher levels of Runx1 than CD8+ cells. Taken together, these findings indicate that although widely expressed in the hematopoietic system, the expression of Runx1 is regulated in a cell type- and maturation stage-specific manner. In addition, the Runx1-IRES-GFP knock-in mouse strain should prove valuable for investigation of Runx1 function in adult hematopoiesis.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
103
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2522-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:14630789-Adult, pubmed-meshheading:14630789-Animals, pubmed-meshheading:14630789-Base Sequence, pubmed-meshheading:14630789-CD4-Positive T-Lymphocytes, pubmed-meshheading:14630789-Core Binding Factor Alpha 2 Subunit, pubmed-meshheading:14630789-DNA Primers, pubmed-meshheading:14630789-DNA-Binding Proteins, pubmed-meshheading:14630789-Gene Expression Regulation, pubmed-meshheading:14630789-Genotype, pubmed-meshheading:14630789-Green Fluorescent Proteins, pubmed-meshheading:14630789-Hematopoiesis, pubmed-meshheading:14630789-Humans, pubmed-meshheading:14630789-Luminescent Proteins, pubmed-meshheading:14630789-Lymph Nodes, pubmed-meshheading:14630789-Lymphocyte Subsets, pubmed-meshheading:14630789-Mice, pubmed-meshheading:14630789-Mice, Transgenic, pubmed-meshheading:14630789-Polymerase Chain Reaction, pubmed-meshheading:14630789-Proto-Oncogene Proteins, pubmed-meshheading:14630789-Transcription Factors
pubmed:year
2004
pubmed:articleTitle
Role of RUNX1 in adult hematopoiesis: analysis of RUNX1-IRES-GFP knock-in mice reveals differential lineage expression.
pubmed:affiliation
Department of Pathology, St Jude Children's Research Hospital, Memphis, TN 38105, USA. robert.lorsbach@stjude.org
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't