Immunological agnosis: a state that derives from T suppressor cell inhibition of antigen-presenting cells.
نویسندگان
چکیده
The biologically active mediators of antigen-specific T suppressor cells can combine with antigen on cells that are specialized to present antigen (APC) and render these APC incapable of presenting not only the specific antigen that the product of the T suppressor cell sees but also any other antigen in or on the APC. Thus, antigen-bearing suppressed APC fail to activate either the helper or suppressor system involved in the regulation of contact sensitivity responses. These results demonstrate that APC are targets of T suppressor cells. They also imply that a metabolic event is required for functional antigen presentation and that T suppressor cells can block that metabolic pathway.
منابع مشابه
The Immunomodulatory Effect of Cyclophosphamide on Regulation of T-Cell Subsets and Antigen Presenting Cells.
متن کامل
The factors influencing the immune response to hepatitis B vaccine and persistence of the protection.
Hepatitis B virus (HBV) infection and its sequelae which include cirrhosis and hepatocellular carcinoma is a major public health problem throught the world.The WHO strategy for effective control of HBV infection is vaccination with the surface antigen of virus(HBsAg).The results obtained from a large number of studies demonstrated that the vaccine induces a protective antibody resonse (anti-HB...
متن کاملPreferential T cell Expansion by Artificial Antigen Presenting Cells Expressing 4-1BBL Alone or in Combination with CD80 or CD86
متن کامل
Human Leukocyte Antigen-G Expression on Dendritic Cells Induced by Transforming Growth Factor-β1 and CD4+ T Cells Proliferation
Background: During antigen capture and processing, mature dendritic cells (DC) express large amounts of peptide-MHC complexes and accessory molecules on their surface. DC are antigen-presenting cells that have an important role in tolerance and autoimmunity. The transforming growth factor-beta1 (TGF-β1) cytokine has a regulatory role on the immune and non-immune cells. The aim of this study is ...
متن کاملAntigen-Specific Suppression and Immunological Synapse Formation by Regulatory T Cells Require the Mst1 Kinase
Although the cell-to-cell contact between CD4(+)Foxp3(+) regulatory T (Treg) and their target cells is important for the suppressor function of Treg cells, the regulation of this process is not well understood. Here we show that the Mst1 kinase plays a critical role in the suppressor function of Treg cells through regulation of cell contact dependent processes. Mst1 (-/-) Treg cells failed to p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 79 8 شماره
صفحات -
تاریخ انتشار 1982