Linked Life Data

11091489

Source:http://linkedlifedata.com/resource/pubmed/id/11091489

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2001-3-1
pubmed:abstractText
Our previous study demonstrated that transduction of murine embryonic stem (ES) cells with a human erythropoietin (Epo) receptor (R) cDNA resulted in enhanced erythropoiesis in developing embryonic bodies (EBs). To address possible mechanisms of gene regulation, we compared gene expression between hEpoR cDNA-transduced ES (ES-hEpoR) cells and parental ES cells during in vitro differentiation induced by withdrawal of leukemia inhibitory factor (LIF) and cultured in the absence of Epo using differential display reverse transcriptase-polymerase chain reaction (DDRT-PCR). A total of 48 differentially expressed cDNA fragments were found; 12 were sequenced and five were confirmed by Northern blot analysis to be up- or down-regulated in ES-hEpoR cells during differentiation compared to parental ES cells. In a GenBank search of the five putatively regulated cDNA fragments, two fragments shared high sequence homology to two known genes: the Surf-6 gene and the gene for calcyclin binding protein. Northern blot analysis demonstrated that 2.5-kb and 0.3-kb transcripts of the Surf-6 gene were expressed in undifferentiated ES-hEpoR and parental ES cells at a low level, but this expression was enhanced from day 2 to 14 of differentiation after withdrawal of LIF and culture in the presence of Epo. Furthermore, the enhanced expression of these two transcripts was also noticed in EML-C1 cells, a murine multipotential hematopoietic cell line that has erythroid differentiation potential in response to Epo. In summary, our results demonstrate that Surf-6 gene expression is regulated during differentiation of hematopoietic stem/progenitor cells in response to Epo, suggesting a possible role for Surf-6 gene in erythropoiesis.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1525-8165
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
651-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Differentially expressed genes during in vitro differentiation of murine embryonic stem cells transduced with a human erythropoietin receptor cDNA.
pubmed:affiliation
Department of Microbiology/Immunology, Indiana University School of Medicine, Indianapolis 46202-5254, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't