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Regulation of interleukin 3 receptor alpha chain (IL-3R alpha) on human monocytes by interleukin (IL)-4, IL-10, IL-13, and transforming growth factor beta (TGF-beta). 1998

C Lévêque, and S Grafte, and J Paysant, and A Soutif, and B Lenormand, and M Vasse, and C Soria, and J P Vannier
Laboratoire DIFEMA, Faculté de Médecine et de Pharmacie de Rouen, Saint-Etienne du Rouvray, France.

Human interleukin 3 receptor (IL-3R) is constitutively expressed on committed haematopoietic stem cells, where it mediates proliferation and differentiation. This receptor is also expressed by monocytes and may induce functional activation. Interleukin (IL)-4, IL-10, IL-13, and transforming growth factor beta (TGF-beta) have different effects on human monocytes. As IL-3R may be regulated by different cytokines, whether the above-mentioned cytokines were able to modulate the alpha chain of IL-3R (IL-3R alpha) on monocytes was examined. Effects on IL-3R alpha antigen (Ag) expression were analysed by direct immunofluorescence and flow cytometry. Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect variations in IL-3R alpha mRNA expression. IL-10 and TGF-beta were found to downregulate IL-3R alpha Ag. In contrast, IL-4 and IL-13 both caused a dose- and time-dependent increase. A maximum effect was observed at 1 ng/ml of IL-4 for 18 h. Furthermore, in RT-PCR, IL-4 was found to slightly up-regulate IL-3R alpha mRNA expression. These observations suggest that IL-4 and IL-13 play a role in the regulation of IL-3R alpha expression and the effects of cytokines on human monocytes may be mediated, in part, through the regulation of IL-3R.

UI MeSH Term Description Entries
D007378 Interleukins Soluble factors which stimulate growth-related activities of leukocytes as well as other cell types. They enhance cell proliferation and differentiation, DNA synthesis, secretion of other biologically active molecules and responses to immune and inflammatory stimuli. Interleukin
D009000 Monocytes Large, phagocytic mononuclear leukocytes produced in the vertebrate BONE MARROW and released into the BLOOD; contain a large, oval or somewhat indented nucleus surrounded by voluminous cytoplasm and numerous organelles. Monocyte
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D004306 Dose-Response Relationship, Immunologic A specific immune response elicited by a specific dose of an immunologically active substance or cell in an organism, tissue, or cell. Immunologic Dose-Response Relationship,Relationship, Immunologic Dose-Response,Dose Response Relationship, Immunologic,Dose-Response Relationships, Immunologic,Immunologic Dose Response Relationship,Immunologic Dose-Response Relationships,Relationship, Immunologic Dose Response,Relationships, Immunologic Dose-Response
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000941 Antigens Substances that are recognized by the immune system and induce an immune reaction. Antigen
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D015847 Interleukin-4 A soluble factor produced by activated T-LYMPHOCYTES that induces the expression of MHC CLASS II GENES and FC RECEPTORS on B-LYMPHOCYTES and causes their proliferation and differentiation. It also acts on T-lymphocytes, MAST CELLS, and several other hematopoietic lineage cells. B-Cell Growth Factor-I,B-Cell Stimulatory Factor-1,Binetrakin,IL-4,Mast Cell Growth Factor-2,B Cell Stimulatory Factor-1,B-Cell Growth Factor-1,B-Cell Proliferating Factor,B-Cell Stimulating Factor-1,B-Cell Stimulatory Factor 1,BCGF-1,BSF-1,IL4,MCGF-2,B Cell Growth Factor 1,B Cell Growth Factor I,B Cell Proliferating Factor,B Cell Stimulating Factor 1,B Cell Stimulatory Factor 1,Interleukin 4,Mast Cell Growth Factor 2
D016185 Receptors, Interleukin-3 High affinity receptors for INTERLEUKIN-3. They are found on early HEMATOPOIETIC PROGENITOR CELLS; progenitors of MYELOID CELLS; EOSINOPHILS; and BASOPHILS. Interleukin-3 receptors are formed by the dimerization of the INTERLEUKIN-3 RECEPTOR ALPHA SUBUNIT and the CYTOKINE RECEPTOR COMMON BETA SUBUNIT. IL-3 Receptors,Interleukin-3 Receptors,Receptors, IL-3,IL-3 Receptor,IL3 Receptor,IL3 Receptors,Interleukin-3 Receptor,IL 3 Receptor,IL 3 Receptors,Interleukin 3 Receptor,Interleukin 3 Receptors,Receptor, IL-3,Receptor, IL3,Receptor, Interleukin-3,Receptors, IL 3,Receptors, IL3,Receptors, Interleukin 3

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