Pathophysiological cytokine network in primary Sjögren's syndrome
Jacques-Olivier Pers1, Ayan Lahiri, Gabriel J Tobón
1Université Européenne de Bretagne, Université de Brest, Research Unit EA 2216 "Immunology and Pathology", 29609 Brest, France. pers@univ-brest.fr
Presse Medicale (Paris, France : 1983)
|July 28, 2012
Summary
Primary Sjögren's syndrome (pSS) pathogenesis involves complex cytokine networks. This review highlights the roles of T-cell and B-cell derived cytokines, including interferon, FLT3-Ligand, and BAFF, in pSS immunopathogenesis.
Area of Science:
- Immunology
- Rheumatology
- Cell Biology
Background:
- Primary Sjögren's syndrome (pSS) pathogenesis is debated, with increasing focus on lymphocyte subsets and cytokines.
- The "interferon signature" in salivary glands is a key feature in pSS.
- Understanding cytokine involvement is crucial for unraveling pSS immunopathogenesis.
Purpose of the Study:
- To review the role of T-cell and B-cell derived cytokines in primary Sjögren's syndrome pathogenesis.
- To discuss the "interferon signature" and T-cell polarization (Th1/Th2, Th17, Treg) in pSS.
- To emphasize the significance of B-cell cytokines like FLT3-Ligand and BAFF in pSS.
Main Methods:
- Literature review focusing on cytokine networks in primary Sjögren's syndrome.
- Analysis of T-cell derived cytokines, including Th1/Th2 polarization, Th17, and regulatory T cells.
- Examination of B-cell derived cytokines, specifically FLT3-Ligand and BAFF, and their roles.
Main Results:
- The "interferon signature" and various T-cell subsets (Th1, Th2, Th17, Treg) are implicated in pSS.
- B-cell activating factor (BAFF) prevents apoptosis of autoreactive B cells, contributing to autoimmunity.
- FLT3-Ligand is identified as a cytokine associated with lymphoma development in pSS patients.
Conclusions:
- Cytokine networks, particularly those involving T and B cells, play a pivotal role in pSS immunopathogenesis.
- Interactions between interconnected cytokine networks influence diverse cell populations in pSS.
- Further research into these complex interactions is essential for understanding and potentially treating pSS.
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