Using the earlier established liposome system for antigen presentation, in which liposomes bearing major histocompatibility complex (MHC)-class II molecules inserted into and protein antigen covalently linked to the membrane were found to be sufficient for an antigen-specific and MHC-restricted acti
Modeling T Cell-Antigen Presenting Cell Interactions
โ Scribed by Michael A. Fishman; Alan S. Perelson
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 897 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0022-5193
No coin nor oath required. For personal study only.
โฆ Synopsis
We present and analyze a model for the interaction of naive T cells with antigen presenting cells (APCs) that results in T-cell activation. We use this model to examine delayed type hypersensitivity (DTH) reactions. We show that responses can be of two types; either the antigen is completely eliminated or the immune system fails to eliminate the antigen and chronic infection results. Both outcomes are characteristic of diseases in which delayed type hypersensitivity is the primary defense mechanism. We compare the effectiveness of two types of APCs macrophages and dendritic cells, in the generation of DTH responses. We conclude that dendritic cells are more suited to the task of stimulating naive T cells than are macrophages, as has recently been argued by Steinman and coworkers.
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