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Etiological study of oral disease in HIV and HTLV-I positive patients-characteristics of salivary gland cells-

Research Project

Project/Area Number 10470435
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field Surgical dentistry
Research InstitutionKyushu University

Principal Investigator

ABE Kihachiro  Univ. of Dental Hospital., Kyushu University Assoc. Prof., 歯学部・附属病院, 助教授 (20117055)

Co-Investigator(Kenkyū-buntansha) TERAMOTO Nariyoshi  Faculty of Medicine, Kyushu University Res.Assoc., 大学院・医学研究院, 助手 (40294912)
NAKAMURA Seiji  Univ. of Dental Hospital., Kyushu University Assist. Prof., 歯学部・附属病院, 講師 (60189040)
吉田 篤哉  九州大学, 歯学部, 講師 (00284521)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥14,500,000 (Direct Cost: ¥14,500,000)
Fiscal Year 2000: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1999: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1998: ¥11,200,000 (Direct Cost: ¥11,200,000)
KeywordsHIV / HTLV-I / autoimmune disease / Sjogren's syndrome / Salivary gland / cytokine / T cell / シェーグレン症侯群 / パッチクランプ
Research Abstract

Measurement of whole salivary flow rate revealed that function of salivary gland is frequently impaired in HIV- or HTLV-I-infected patients. The salivary gland dysfunction observed in these patients was clinically similar to one of autoimmune disease, Sjogren's syndrome. To clarify the etiopathological association of Sjogren's syndrome with HTLV-I, we first of all examined the localization of HTLV-I proviral DNA in the salivary gland of the patients. The results suggested HTLV-I infected T cells accumulate in the salivary glands and are involved in the induction of the salivary gland dysfunction. Cytokines detected in the salivary glands was mainly Th1 cytokines IL-2 and IFNγ produced by CD4-positive T cells. Furthermore, examination of the T cell receptor C gene usage in the salivary glands revealed that T cells expressing unique T cell receptors are accumulated in the salivary glands. These T cells were commonly present in patients with Sjogren's syndrome. These results strongly suggest that a self-reactive T cells could be infected with the virus, activated by the virus, and thereafter induce this type of autoimmune disease. Using a path-clamp method, we found, in rat salivary acinar cells, a K^+ channels which was Ca^<2+>-dependent and voltage-dependent. This report is the first report in the world.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] Y.Ohyama, et al.: "Accumulation of human T lymphotrophic virus type I-infected T cells in the salivary glands of patients with human T lymphotropic virus type I-associated Sjogren's syndrome."Arthritis & Rheumatism. 41(11). 1973-1978 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Sasaki et al.: "Accumulation of common T cell clonotypes in the salivary glands of patients with human T lymphotropic virus type I-associated and idiopathic Sjogren's syndrome"J.Immunology. 164. 2823-2831 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Ohyama, S.Nakamura, H.Hara, M.Shinohara, M.Sasaki, A.Hiroki, T.Mouri, S.Tunawaki, K.Abe, K.Shirasuna and K.Nomoto: "Accumulation of human T lymphotrophic virus type I-infected T cells in the salivary glands of patients with human T lymphotropic virus type I-associated Sjogren's syndrome."Arthritis & Rheumatism. 41 (11). 1972-1978 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Sasaki, S.Nakamura, Y.Ohyama, M.Shinohara, I.Ezaki, H.Hara, T.Kadena, K.Kishihara, K.Yamamoto, K.Nomoto and K.Shirasuna: "Accumulation of common T cell clonotypes in the salivary glands of patients with human T lymphotropic virus type I-associated and idiopathic Sjogren's syndrome."J.of Immunology. 164. 2823-2831 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Sasaki et al: "Accumulation of common T cell clonotypes in the salivary glands of patients with human T lymphotropic virus type I-associated and ideopathic Sjogen's syndrome"J.of Immunology. 164. 2823-2831 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Oyama Y. et al: "An accumulation of human t-lynophotrophic virus type I (HTLV-I)-intected T cells in the salivary glands of patients with HTLV-I-associated sjogren's synd-rome." Arthritis and Reumatism. 41. 1972-1978 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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