Dendritic Cell Homeostasis in the Regulation of Self-Reactivity

Author(s): Burkhard Ludewig, Philippe Krebs, Tobias Junt, Gennady Bocharov

Journal Name: Current Pharmaceutical Design

Volume 9 , Issue 3 , 2003

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Dendritic cells (DC) are known for their remarkable ability to induce specific T cell responses. However, the existing views on the role of DC in maintaining tolerance to self-antigens and induction of autoimmunity are somewhat controversial especially when the basic physiology of DC migration, function and homeostasis is considered. This review attempts to provide a comprehensive overview on these topics with particular emphasis on DC homeostasis and presents implications for the generation of pathological autoimmune T cell responses. Furthermore, we advocate the need for a conceptual characterization of the immune system operating in vivo. With particular focus on the contribution of DC, we suggest that a ‘spatiotemporal’ view of the rules for T cell responses (antigen dose and availability, duration and mode of antigen presentation) permits a better understanding of the relevant factors contributing to the pathogenesis of autoimmune diseases.

Keywords: dendritic cell, dc homeostasis, self-reactivity, langerhans cells, self-antigen

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Article Details

Year: 2003
Page: [221 - 231]
Pages: 11
DOI: 10.2174/1381612033392044
Price: $65

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