scholarly journals CD4+CD25+ regulatory T cells control the magnitude ofT-dependent humoral immune responses to exogenous antigens

2006 ◽  
Vol 36 (4) ◽  
pp. 855-863 ◽  
Author(s):  
Fouad Eddahri ◽  
Guillaume Oldenhove ◽  
Sébastien Denanglaire ◽  
Jacques Urbain ◽  
Oberdan Leo ◽  
...  
Keyword(s):  
T Cells ◽  
Regulatory T Cells ◽  
Immune Responses ◽  
Humoral Immune ◽  
Humoral Immune Responses

scholarly journals TGF-β3-expressing CD4+CD25−LAG3+ regulatory T cells control humoral immune responses

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Tomohisa Okamura ◽  
Shuji Sumitomo ◽  
Kaoru Morita ◽  
Yukiko Iwasaki ◽  
Mariko Inoue ◽  
...  
Keyword(s):  
T Cells ◽  
Regulatory T Cells ◽  
Immune Responses ◽  
Humoral Immune ◽  
Humoral Immune Responses

Inducing Humoral Immune Responses Against Regulatory T Cells by Foxp3-Fc(IgG) Fusion Protein

2015 ◽  
Vol 34 (6) ◽  
pp. 381-385 ◽  
Author(s):  
Neda Mousavi Niri ◽  
Jamshid Hadjati ◽  
Mahdi Sadat ◽  
Arash Memarnejadian ◽  
Mohammadreza Aghasadeghi ◽  
...  
Keyword(s):  
T Cells ◽  
Regulatory T Cells ◽  
Immune Responses ◽  
Fusion Protein ◽  
Humoral Immune ◽  
Humoral Immune Responses

scholarly journals Post-immune UV irradiation induces Tr1-like regulatory T cells that suppress humoral immune responses

2007 ◽  
Vol 20 (1) ◽  
pp. 57-70 ◽  
Author(s):  
L. Wang ◽  
M. Toda ◽  
K. Saito ◽  
T. Hori ◽  
T. Horii ◽  
...  
Keyword(s):  
T Cells ◽  
Regulatory T Cells ◽  
Immune Responses ◽  
Uv Irradiation ◽  
Humoral Immune ◽  
Humoral Immune Responses

scholarly journals REGULATION OF THE IMMUNE RESPONSE

1973 ◽  
Vol 137 (3) ◽  
pp. 721-739 ◽  
Author(s):  
Michael Hoffmann ◽  
John W. Kappler
Keyword(s):  
T Cells ◽  
Immune Responses ◽  
Immune Suppression ◽  
Antigen Recognition ◽  
Helper T Cells ◽  
Antibody Specificity ◽  
Humoral Immune ◽  
Functional Assays ◽  
Humoral Immune Responses

The specificity of antigen recognition by thymus-derived helper cells (T cells) and antibody was examined in mice, heterologous erythrocyte antigens from sheep (SRBC), goat (GRBC), burro (BRBC), chicken (CRBC), and toad (TRBC) being used. Antibody specificity was tested by a number of functional assays: hemagglutination, hemolysis, and immune suppression. The specificity of T cells was determined by titrating their ability to help the in vitro antitrinitrophenol (TNP) responses of mouse spleen cultures immunized with the hapten coupled to the various test erythrocytes as carrier. Anti-SRBC antibody cross-reacted with GRBC, but not with BRBC, CRBC, or TRBC. In contrast, SRBC-primed helper T cells cross-reacted with both GRBC and BRBC, but not with CRBC or TRBC, indicating a difference in the specificity of antigen recognition between the cellular and the humoral immune responses.

scholarly journals NFAT control of immune function: New Frontiers for an Abiding Trooper

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 260 ◽  
Author(s):  
Martin Vaeth ◽  
Stefan Feske
Keyword(s):  
T Cells ◽  
Transcription Factor ◽  
Immune Responses ◽  
Physiological Function ◽  
Large Body ◽  
Immunological Tolerance ◽  
Nuclear Factor ◽  
Activated T Cells ◽  
Humoral Immune ◽  
Humoral Immune Responses

Nuclear factor of activated T cells (NFAT) was first described almost three decades ago as a Ca2+/calcineurin-regulated transcription factor in T cells. Since then, a large body of research uncovered the regulation and physiological function of different NFAT homologues in the immune system and many other tissues. In this review, we will discuss novel roles of NFAT in T cells, focusing mainly on its function in humoral immune responses, immunological tolerance, and the regulation of immune metabolism.

scholarly journals CD40L-deficient mice show deficits in antiviral immunity and have an impaired memory CD8+ CTL response.

1996 ◽  
Vol 183 (5) ◽  
pp. 2129-2142 ◽  
Author(s):  
P Borrow ◽  
A Tishon ◽  
S Lee ◽  
J Xu ◽  
I S Grewal ◽  
...  
Keyword(s):  
T Cells ◽  
Immune Responses ◽  
Humoral Immunity ◽  
Cd4 T Cells ◽  
Antiviral Immunity ◽  
Ctl Response ◽  
Humoral Immune ◽  
Humoral Immune Responses ◽  
Deficient Mice

The ligand for CD40 (CD40L) is expressed on the surface of activated CD4+ T cells and its role in T-B cell collaborations and thymus-dependent humoral immunity is well established. Recently, by generating CD40L-knockout mice, we have confirmed its previously described role in humoral immunity and defined another important function of this molecule in the in vivo clonal expansion of antigen-specific CD4+ T cells. Here, we investigated the potential in vivo role of CD40L in antiviral immunity by examining the immune response mounted by CD40L-deficient mice following infection with lymphocytic choriomeningitis virus (LCMV), Pichinde virus, or vesicular stomatitis virus. Humoral immune responses of CD40L-deficient mice to these viruses were severely compromised, although moderate titres of antiviral IgM and some IgG2a were produced by virus-infected CD40L-deficient mice by a CD4+ T cell-independent mechanism. By contrast, CD40L-deficient mice made strong primary CTL responses to all three viruses. Interestingly however, although memory CTL activity was detectable in CD40L-deficient mice two months after infection with LCMV, the memory CTL response was much less efficient than in wild-type mice. Together, the results show that CD40-CD40L interactions are required for strong antiviral humoral immune responses, and reveal a novel role for CD40L in the establishment and/or maintenance of CD8+ CTL memory.

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