| HTLV-I virological and histopathological analysis in two cases of anti-centromere-antibody-seropositive Sjögren's syndrome. | |
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MedLine Citation:
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PMID: 22526828 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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INTRODUCTION: The aim of this study was to show the clinical and pathological characteristics of anti-centromere-antibody (ACA)-seropositive Sjögren's syndrome (SS) in two anti-human T-cell leukemia virus type I (HTLV-I)-seropositive patients. METHODS: One patient was an HTLV-I carrier whereas the other was diagnosed with HTLV-I-associated myelopathy (HAM). Background data including serum HTLV-I titers, viral loads, and cytokine profiles were recorded. Azocarmine with aniline blue (Azan)-Mallory staining and immunohistochemistry of the labial salivary glands (LSGs) and a muscle biopsy specimen from the HAM patient were performed. RESULTS: Serum transforming growth factor beta (TGF-β), tumor necrosis factor alpha (TNF-α), and HTLV-I viral load were high in the HAM-SS patient compared with the HTLV-I carrier. Fibrous change in LSG was prominent in the HAM-SS patient. Although TGF-β expression was similar in the two patients, expression of HTLV-I-related proteins including p12, p28, group-specific antigen (GAG), and nuclear factor kappa-B (NF-κB) in the LSG were dominantly detected in the HAM-SS patient. Frequency of TGF-β staining in HTLV-I-seropositive SS patients without ACA, HTLV-I-seronegative SS patients with ACA, and HTLV-I-seronegative SS patients without ACA was lower than that of the previous two patients. CONCLUSION: A high HTLV-I viral load in situ is supposed to promote the production of cytokines, especially TGF-β, resulting in the fibrous change of LSG in ACA-seropositive SS patients. |
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Authors:
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Hideki Nakamura; Yoshiro Horai; Ayuko Tokuyama; Shunsuke Yoshimura; Hideki Nakajima; Kunihiro Ichinose; Satoshi Yamasaki; Tatsufumi Nakamura; Tomayoshi Hayashi; Atsushi Kawakami |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-4-18 |
Journal Detail:
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Title: Modern rheumatology / the Japan Rheumatism Association Volume: - ISSN: 1439-7609 ISO Abbreviation: - Publication Date: 2012 Apr |
Date Detail:
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Created Date: 2012-4-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100959226 Medline TA: Mod Rheumatol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Unit of Translational Medicine, Department of Immunology and Rheumatology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, Nagasaki, 852-8501, Japan, nakamura_hideki911@yahoo.co.jp. |
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