Abstract
T cells are implicated in both local and systemic pathophysiology of primary Sjögren’s syndrome (PSS). Lymphocytic infiltrates in exocrine glands are dominated by CD4+ T cells, some contributing to ectopic lymphoid tissue, others, unusually, exhibiting cytotoxic potential. Cytokine secretion patterns are complex, with Th1 and Th17 components implicated in pathology. Circulating T cells exhibit phenotypes consistent with hyperactivation, cytokine imbalance, and homeostatic alterations; CD4 lymphopenia is recognized as a risk factor for developing lymphoma. Evidence of oligoclonal expansion is found locally and systemically. Functional alterations (e.g. cytokine secretion profile, migratory potential, target cell interactions) are less clearly defined. Attempts at T cell-targeted therapy of PSS have been limited, although therapy targeted at other arms of the immune response may also affect T cells. A better understanding of T-cell dysregulation in PSS is required in order to understand its contribution to disease, aid prognosis, and improve therapeutic interventions aimed at this aspect of the disease.
Keywords: Autoimmune disease, cytokines, cytotoxicity, homeostasis, pathophysiology, Sjogren’s syndrome, T-cell activation, T lymphocyte subset, systemic pathophysiology, ectopic lymphoid tissue, lymphoma, cytokine, aid prognosis, lymphocytes collaborate, tissue damage occurs.
Current Pharmaceutical Biotechnology
Title:Local Activation and Systemic Dysregulation of T Lymphocytes in Sjögren’s Syndrome
Volume: 13 Issue: 10
Author(s): Robert Busch, Andreas V. Hadjinicolaou and Frances C. Hall
Affiliation:
Keywords: Autoimmune disease, cytokines, cytotoxicity, homeostasis, pathophysiology, Sjogren’s syndrome, T-cell activation, T lymphocyte subset, systemic pathophysiology, ectopic lymphoid tissue, lymphoma, cytokine, aid prognosis, lymphocytes collaborate, tissue damage occurs.
Abstract: T cells are implicated in both local and systemic pathophysiology of primary Sjögren’s syndrome (PSS). Lymphocytic infiltrates in exocrine glands are dominated by CD4+ T cells, some contributing to ectopic lymphoid tissue, others, unusually, exhibiting cytotoxic potential. Cytokine secretion patterns are complex, with Th1 and Th17 components implicated in pathology. Circulating T cells exhibit phenotypes consistent with hyperactivation, cytokine imbalance, and homeostatic alterations; CD4 lymphopenia is recognized as a risk factor for developing lymphoma. Evidence of oligoclonal expansion is found locally and systemically. Functional alterations (e.g. cytokine secretion profile, migratory potential, target cell interactions) are less clearly defined. Attempts at T cell-targeted therapy of PSS have been limited, although therapy targeted at other arms of the immune response may also affect T cells. A better understanding of T-cell dysregulation in PSS is required in order to understand its contribution to disease, aid prognosis, and improve therapeutic interventions aimed at this aspect of the disease.
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Cite this article as:
Busch Robert, V. Hadjinicolaou Andreas and C. Hall Frances, Local Activation and Systemic Dysregulation of T Lymphocytes in Sjögren’s Syndrome, Current Pharmaceutical Biotechnology 2012; 13 (10) . https://dx.doi.org/10.2174/138920112802273092
DOI https://dx.doi.org/10.2174/138920112802273092 |
Print ISSN 1389-2010 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4316 |
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