Thymic-dependent anti-hapten response in congenitally athymic (nude) mice immunized with DNP-thymosin. 1977

A Ahmed, and A H Smith, and K W Sell, and M E Gershwin, and A D Steinberg, and G B Thurman, and A L Goldstein

Immunization of congenitally athymic (nu/nu) and adult thymectomized, irradiated bone marrow, reconstituted (TxBm) mice with DNP5-thymosin (dinitrophenylated-bovine thymosin fraction 5) was found to elcit IgM and IgG anti-DNP plaque-forming cells in these animals. Further studies indicated that this response was antigen specific and not due to polyclonal activation. Since the hormonal properties of the thymosin were retained following linkage with hapten and DNP-thymosin was immunogenic in CBA/N and CBA/N female X DBA/2 male)F1 male mice, animals previously shown to have an X-linked inability to respond to thymus-independent antigens, it was concluded that DNP-thymosin functions both as a hormone and as a T-dependent antigen in eliciting an immune response in nu/nu and TxBm mice. Additional support for this conclusion was provided by the demonstration that DNP-thymosin could specifically prime for and elicit an anamnestic response in nu/nu mice. These results indicate that further investigation of the immune activities of DNP-thymosin may provide valuable insight in characterizing the maturation of helper T cells and their subsequent interaction with B cells.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D007075 Immunoglobulin M A class of immunoglobulin bearing mu chains (IMMUNOGLOBULIN MU-CHAINS). IgM can fix COMPLEMENT. The name comes from its high molecular weight and originally was called a macroglobulin. Gamma Globulin, 19S,IgM,IgM Antibody,IgM1,IgM2,19S Gamma Globulin,Antibody, IgM
D007156 Immunologic Memory The altered state of immunologic responsiveness resulting from initial contact with antigen, which enables the individual to produce antibodies more rapidly and in greater quantity in response to secondary antigenic stimulus. Immune Memory,Immunological Memory,Memory, Immunologic,Immune Memories,Immunologic Memories,Immunological Memories,Memory, Immune,Memory, Immunological
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008198 Lymph Nodes They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system. Lymph Node,Node, Lymph,Nodes, Lymph
D008297 Male Males
D008819 Mice, Nude Mutant mice homozygous for the recessive gene "nude" which fail to develop a thymus. They are useful in tumor studies and studies on immune responses. Athymic Mice,Mice, Athymic,Nude Mice,Mouse, Athymic,Mouse, Nude,Athymic Mouse,Nude Mouse
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
D004136 Dinitrobenzenes Benzene derivatives which are substituted with two nitro groups in the ortho, meta or para positions. Dinitrobenzene,Dinitrophenyl Compound,Dinitrophenyl Compounds,Dinitrotoluene,Dinitrotoluenes,Compound, Dinitrophenyl
D005260 Female Females

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