title: Stat3-dependent induction of interleukin-3 receptor expression in leukemia inhibitory factor-stimulated M1 mouse leukemia cells.
abstract: M1 mouse leukemia cells differentiate to macrophages/monocytes by the stimulation of interleukin-6 (IL-6)/leukemia inhibitory factor (LIF). To identify new LIF-induced genes, we have performed representational difference analysis using M1 cells and cloned mouse interleukin-3 (IL-3) receptor beta subunit gene. The mRNA expression of both IL-3 receptor (IL-3R) alpha and beta subunits is upregulated after 1 h stimulation of LIF and remains to be elevated along the differentiation of M1 cells. This induction is almost completely suppressed in M1 cells expressing a dominant negative form of Stat3. Furthermore, we show that IL-3-induced Stat5 phosphorylation increases in LIF-stimulated M1 cells. These results suggest that Stat3 may play a role in the differentiation of myeloid cells by regulating IL-3R expression.
authors.affiliation: Radioisotope Research Center Medical Division, Nagoya University School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan. iwamoto@med.nagoya-u.ac.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Iwamoto
authors.forename: Takeshi
authors.initials: T
authors.lastname: Senga
authors.forename: Koichi
authors.initials: K
authors.lastname: Adachi
authors.forename: Michinari
authors.initials: M
authors.lastname: Hamaguchi
mesh_terms: D019943:Amino Acid Substitution / Q000235:genetics; D000818:Animals; D015152:Blotting, Northern; D001854:Bone Marrow Cells / Q000737:chemistry; D002454:Cell Differentiation / Q000502:physiology; D002460:Cell Line; D045744:Cell Line, Tumor; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism / Q000502:physiology*; D015870:Gene Expression / Q000187:drug effects; D015973:Gene Expression Regulation, Leukemic / Q000187:drug effects*; D007377:Interleukin-3 / Q000494:pharmacology; D015850:Interleukin-6 / Q000494:pharmacology* / Q000502:physiology; D053605:Leukemia Inhibitory Factor; D015470:Leukemia, Myeloid, Acute / Q000235:genetics / Q000473:pathology; D051379:Mice; D008894:Milk Proteins; D010766:Phosphorylation / Q000187:drug effects; D017354:Point Mutation / Q000235:genetics; D021122:Protein Subunits / Q000235:genetics; D016187:Receptors, Granulocyte-Macrophage Colony-Stimulating Factor / Q000235:genetics; D016185:Receptors, Interleukin-3 / Q000235:genetics*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D050796:STAT3 Transcription Factor; D050799:STAT5 Transcription Factor; D015398:Signal Transduction / Q000502:physiology; D015534:Trans-Activators / Q000235:genetics / Q000378:metabolism / Q000502:physiology*
chemical_list: D004268:DNA-Binding Proteins; D007377:Interleukin-3; D015850:Interleukin-6; D053605:Leukemia Inhibitory Factor; C507838:Lif protein, mouse; D008894:Milk Proteins; D021122:Protein Subunits; D016187:Receptors, Granulocyte-Macrophage Colony-Stimulating Factor; D016185:Receptors, Interleukin-3; D050796:STAT3 Transcription Factor; D050799:STAT5 Transcription Factor; C494087:Stat3 protein, mouse; D015534:Trans-Activators