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[The expression of CD25 in phytohemagglutinin- or interleukin-2-stimulated human peripheral blood lymphocytes]. 2009

V V Zenin, and N D Aksenov, and A N Shatrova, and I I Marakhova

The timely expression of a high affinity receptor for interleukin-2 (IL-2R) in human peripheral blood lymphocytes stimulated by various mitogens was examined by cytophotometric evaluation of the number of CD25 bearing cells (CD25+). In resting lymphocyte culture both phytohemagglutinin (PHA, 10 (microg/ml) and 12,13-phorbol dibutirate (PDBu, 10-8 M) and ionomycin (IM, 5 x 10(-7) M) induce the long-lasting increase (during 48 h) in the number of CD25+ cells. Only in competent (not in resting) lymphocytes, pretreated by submitogenic doses of PHA (1 microg/ml), interleukin-2 (IL-2) is capable to induce the time-dependent CD25 expression. When comparing the time course of CD25+ expression and the blasttransformation it was found that the CD25 markers were revealed on small stimulated lymphocytes and all the large blasts were the CD+ cells with high-affinity alphabetagamma(c) receptor for IL-2. In conclusion, the expression of alpha-subunit of IL-2R takes place during the IL-2-dependent stage of T cell proliferation and may be directly induced by IL-2 via IL-2R.

UI MeSH Term Description Entries
D007376 Interleukin-2 A soluble substance elaborated by antigen- or mitogen-stimulated T-LYMPHOCYTES which induces DNA synthesis in naive lymphocytes. IL-2,Lymphocyte Mitogenic Factor,T-Cell Growth Factor,TCGF,IL2,Interleukin II,Interleukine 2,RU 49637,RU-49637,Ro-23-6019,Ro-236019,T-Cell Stimulating Factor,Thymocyte Stimulating Factor,Interleukin 2,Mitogenic Factor, Lymphocyte,RU49637,Ro 23 6019,Ro 236019,Ro236019,T Cell Growth Factor,T Cell Stimulating Factor
D008213 Lymphocyte Activation Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION. Blast Transformation,Blastogenesis,Lymphoblast Transformation,Lymphocyte Stimulation,Lymphocyte Transformation,Transformation, Blast,Transformation, Lymphoblast,Transformation, Lymphocyte,Activation, Lymphocyte,Stimulation, Lymphocyte
D008934 Mitogens Substances that stimulate mitosis and lymphocyte transformation. They include not only substances associated with LECTINS, but also substances from streptococci (associated with streptolysin S) and from strains of alpha-toxin-producing staphylococci. (Stedman, 25th ed) Mitogen,Phytomitogen,Phytomitogens
D010835 Phytohemagglutinins Mucoproteins isolated from the kidney bean (Phaseolus vulgaris); some of them are mitogenic to lymphocytes, others agglutinate all or certain types of erythrocytes or lymphocytes. They are used mainly in the study of immune mechanisms and in cell culture. Kidney Bean Lectin,Kidney Bean Lectins,Lectins, Kidney Bean,Phaseolus vulgaris Lectin,Phaseolus vulgaris Lectins,Phytohemagglutinin,Hemagglutinins, Plant,Lectin, Kidney Bean,Lectin, Phaseolus vulgaris,Lectins, Phaseolus vulgaris,Plant Hemagglutinins
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013601 T-Lymphocytes Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen. T Cell,T Lymphocyte,T-Cells,Thymus-Dependent Lymphocytes,Cell, T,Cells, T,Lymphocyte, T,Lymphocyte, Thymus-Dependent,Lymphocytes, T,Lymphocytes, Thymus-Dependent,T Cells,T Lymphocytes,T-Cell,T-Lymphocyte,Thymus Dependent Lymphocytes,Thymus-Dependent Lymphocyte
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D049109 Cell Proliferation All of the processes involved in increasing CELL NUMBER including CELL DIVISION. Cell Growth in Number,Cellular Proliferation,Cell Multiplication,Cell Number Growth,Growth, Cell Number,Multiplication, Cell,Number Growth, Cell,Proliferation, Cell,Proliferation, Cellular
D053645 Interleukin-2 Receptor alpha Subunit A low affinity interleukin-2 receptor subunit that combines with the INTERLEUKIN-2 RECEPTOR BETA SUBUNIT and the INTERLEUKIN RECEPTOR COMMON GAMMA-CHAIN to form a high affinity receptor for INTERLEUKIN-2. Antigens, CD25,CD25 Antigens,Interleukin-2 Receptors alpha,Tac P55 Peptide,CD25 Antigen,IL-2Ralpha,Interleukin-2 Receptor alpha,Interleukin-2 Receptor alpha Chain,Interleukin-2Ralpha,alpha-subunit, Receptor, Interleukin-2,Antigen, CD25,IL 2Ralpha,Interleukin 2 Receptor alpha,Interleukin 2 Receptor alpha Chain,Interleukin 2 Receptor alpha Subunit,Interleukin 2 Receptors alpha,Interleukin 2Ralpha,Receptor alpha, Interleukin-2,Receptors alpha, Interleukin-2

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