| Analysis of the cumulative changes in Graves' disease thyroid glands points to IFN signature, plasmacytoid DCs and alternatively activated macrophages as chronicity determining factors. | |
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MedLine Citation:
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PMID: 21354768 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Graves' disease (GD) is a chronic autoimmune process in the thyroid gland and involves IFN and IFN driven immune activation. Assuming the thyroid gland is the main site stimulating the autoimmune response, we investigated the role of IFNs and other factors in the chronic evolution of GD by comparing the transcriptomic profiles of thyroid glands from short clinical course (SC), long clinical course (LC) cases, and control glands (C). Over 200 differentially expressed genes of the immune system were identified. Results were extensively analyzed bioinformatically and validated by qPCR in 31 glands. The analysis indicated that GD involved a progressive accumulation of changes with clearly distinct profiles in the SC and LC glands. Humoral response, antigen presentation and chemokines & cytokines were overall the most represented gene ontology categories in LC cases. Ingenuity Pathway Analysis pointed to a few inflammatory pathways in SC cases whereas LC cases involved numerous complex pathways, such us "communication between innate and adaptive immune cells" and "autoimmune thyroid signaling". A broad IFN signature consisted of the over-expression of 74 and 84 type I and type II IFN responsive genes respectively (overall 96 out of 211, 45%), but many of these genes can also be directly activated through cytoplasmic viral receptors. For the first time, plasmocytoid dendritic cells were identified in GD thyroid, but surprisingly, the main producers of IFN-alpha were cells with a myeloid cell phenotype. In addition, cells with the phenotype of alternatively activated macrophages were detected in abundance in GD thyroids, confirming data from the transcriptomic analysis. Collectively, these results confirmed the role of IFNs, suggested other natural immunity triggers, identified new cell types in the local disease process, and expanded our knowledge of the processes that may determine the chronicity of GD. |
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Authors:
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Marta Ruiz-Riol; Maria del Pilar Armengol Barnils; Roger Colobran Oriol; Alex Sánchez Pla; Francesc-E Borràs Serres; Anna Lucas-Martin; Eva María Martínez Cáceres; Ricardo Pujol-Borrell |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2011-02-26 |
Journal Detail:
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Title: Journal of autoimmunity Volume: 36 ISSN: 1095-9157 ISO Abbreviation: J. Autoimmun. Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-04-19 Completed Date: 2011-08-01 Revised Date: 2011-08-30 |
Medline Journal Info:
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Nlm Unique ID: 8812164 Medline TA: J Autoimmun Country: England |
Other Details:
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Languages: eng Pagination: 189-200 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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Laboratory of Immunobiology for Research and Applications to Diagnosis, Banc de Sang i Teixits (Blood and Tissue Bank), 08916 Badalon, Barcelona, Spain. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Antigen Presentation Dendritic Cells / immunology* Female Gene Expression Profiling Graves Disease / etiology, immunology* Humans Interferons / physiology* Macrophage Activation Macrophages / immunology* Male Middle Aged Polymerase Chain Reaction Signal Transduction / physiology Thyroid Gland / immunology* |
| Chemical | |
Reg. No./Substance:
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9008-11-1/Interferons |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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