rdf:type |
|
lifeskim:mentions |
umls-concept:C0007589,
umls-concept:C0015127,
umls-concept:C0017262,
umls-concept:C0028778,
umls-concept:C0185117,
umls-concept:C0205228,
umls-concept:C0751993,
umls-concept:C1254042,
umls-concept:C1314792,
umls-concept:C1511938,
umls-concept:C2911684
|
pubmed:issue |
3
|
pubmed:dateCreated |
1991-5-17
|
pubmed:abstractText |
A nuclear protooncogene c-myb has been hypothesized to play an important role in hematopoiesis, but little is known about the physiological function of the c-myb gene products. To study the role of c-myb gene expression in monocyte-macrophage differentiation and proliferation, we introduced exogenous c-myb gene into murine myelomonocytic leukemia WEHI-3B(D+) cells which can be induced to differentiate into mature monocytes with granulocyte-colony stimulation factor (G-CSF) and actinomycin D. Expression of the transfected gene was found to result in elevated levels of c-myb transcripts, which were not subject to normal down-regulation by differentiation induction. This constitutive expression of c-myb gene allowed the c-myb transfectants to differentiate into promonocytes with G-CSF and actinomycin D, but blocked further maturation from promonocytes to mature monocytes. It is concluded that normal down-regulation of c-myb gene expression during monocyte-macrophage differentiation is required for the maturation of promonocytes to mature monocytes.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0006-3002
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
26
|
pubmed:volume |
1088
|
pubmed:geneSymbol |
c-myb
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
380-4
|
pubmed:dateRevised |
2009-11-19
|
pubmed:meshHeading |
pubmed-meshheading:1707676-Animals,
pubmed-meshheading:1707676-Cell Differentiation,
pubmed-meshheading:1707676-DNA,
pubmed-meshheading:1707676-Dactinomycin,
pubmed-meshheading:1707676-Gene Expression Regulation,
pubmed-meshheading:1707676-Granulocyte Colony-Stimulating Factor,
pubmed-meshheading:1707676-Macrophages,
pubmed-meshheading:1707676-Mice,
pubmed-meshheading:1707676-Monocytes,
pubmed-meshheading:1707676-Protein-Tyrosine Kinases,
pubmed-meshheading:1707676-Proto-Oncogene Proteins,
pubmed-meshheading:1707676-Proto-Oncogene Proteins c-myb,
pubmed-meshheading:1707676-RNA,
pubmed-meshheading:1707676-Transfection,
pubmed-meshheading:1707676-Tumor Cells, Cultured
|
pubmed:year |
1991
|
pubmed:articleTitle |
Constitutive expression of exogenous c-myb gene causes maturation block in monocyte-macrophage differentiation.
|
pubmed:affiliation |
Tsukuba Life Science Center, Institute of Physical and Chemical Research (RIKEN), Ibaraki, Japan.
|
pubmed:publicationType |
Journal Article
|