Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2002-11-7
pubmed:abstractText
Synergism between stem cell factor (SCF) and granulocyte-macrophage colony-stimulating factor (GM-CSF) has been shown to be essential for hematopoietic cell proliferation. Since HML-2 cells proliferate exponentially in the presence of SCF and GM-CSF together, we analyzed the molecular mechanism of the interaction between these two factors in the cells. An immediate-early gene product, c-myc, was additively upregulated in HML-2 cells by addition of a combination of SCF and GM-CSF. c-myc antisense oligonucleotides effectively suppressed cell proliferation and downregulated the induction of D3, E, A, and B cyclins in HML-2 cells stimulated with the two-factor combination. HML-2 cells arrested at the G0/G1 phase with SCF alone and expressed modest amounts of c-myc and cyclin D3, but not cyclin E. With GM-CSF treatment alone, the cells could not progress to the G2/M phase and expressed c-myc, cyclin D3 and cyclin E but not cyclins A or B. The addition of the counterpart cytokine resulted in cell cycle completion by induction of the deficient cyclins. Taken together, it appears that the induction of c-myc is an indispensable event in the proliferation of HML-2 cells and that the cytokines SCF and GM-CSF interact reciprocally for expression of all cyclins required for cell cycle progression.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1043-4666
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
267-75
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:12421569-Cell Cycle, pubmed-meshheading:12421569-Cell Division, pubmed-meshheading:12421569-Cyclins, pubmed-meshheading:12421569-Drug Synergism, pubmed-meshheading:12421569-G1 Phase, pubmed-meshheading:12421569-G2 Phase, pubmed-meshheading:12421569-Gene Expression Regulation, Neoplastic, pubmed-meshheading:12421569-Granulocyte-Macrophage Colony-Stimulating Factor, pubmed-meshheading:12421569-Hematopoietic Stem Cells, pubmed-meshheading:12421569-Humans, pubmed-meshheading:12421569-Immediate-Early Proteins, pubmed-meshheading:12421569-Leukemia, Megakaryoblastic, Acute, pubmed-meshheading:12421569-Mitosis, pubmed-meshheading:12421569-Proto-Oncogene Proteins c-fos, pubmed-meshheading:12421569-Proto-Oncogene Proteins c-jun, pubmed-meshheading:12421569-Proto-Oncogene Proteins c-myc, pubmed-meshheading:12421569-S Phase, pubmed-meshheading:12421569-Stem Cell Factor, pubmed-meshheading:12421569-Tumor Cells, Cultured
pubmed:year
2002
pubmed:articleTitle
Synergism between stem cell factor and granulocyte-macrophage colony-stimulating factor on cell proliferation by induction of cyclins.
pubmed:affiliation
Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan. tkamijo@hsp.md.shinshu-u.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't