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Clinical studies to establish diagnostic methods for HTLV-1-associated ocular diseases.

Research Project

Project/Area Number 16K11268
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Ophthalmology
Research InstitutionKagoshima University

Principal Investigator

Nakao Kumiko  鹿児島大学, 医歯学域医学系, 准教授 (30217658)

Co-Investigator(Kenkyū-buntansha) 久保田 龍二  鹿児島大学, 総合科学域総合研究学系, 教授 (70336337)
Project Period (FY) 2016-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsHTLV-1 / HTLV-1関連ぶどう膜炎 / HTLV-1関連脊髄症 / 成人T細胞白血病 / 可溶性IL-2レセプター / uveitis / adult T-cell leukemia / HAM/TSP / adult T cell leukemia / HAM / ぶどう膜炎
Outline of Final Research Achievements

A search for HTLV-1 proviral load in the intraocular fluid of HTLV-1-associated uveitis (HAU) revealed that in some cases the proviral load in the intraocular fluid was higher than in the peripheral blood and in some cases was lower, and was also higher in non-HAU uveitis occurring in HTLV-1 carriers. Soluble interleukin 2 receptor (sIL-2R) in intraocular fluid in adult T-cell leukemia (ATL), HTLV-1 carriers, and non-carriers was significantly higher in intraocular inflammation (+) than in intraocular inflammation (-) and significantly higher in ATL intraocular invasion but not in choroidal invasion. Analysis of the clinical features of HAU revealed a significantly higher frequency of granular vitreous opacities than in controls and a higher incidence of HTLV-1-associated myelopathy (HAM) in HAU patients than in asymptomatic carriers.

Academic Significance and Societal Importance of the Research Achievements

検査できた症例数は少ないが、眼内液のHTLV-1プロウイス量はHAU診断の指標とはならないことが示唆された。眼内液sIL-2RはATL眼内浸潤診断の指標になる可能性があるが、眼内の炎症が強い他の疾患でも高値を示すこと、ATL眼内浸潤であっても浸潤部位によっては低値を示す可能性があることに留意する必要がある。HAU臨床像の解析からは顆粒状硝子体混濁がHAU臨床診断の指標となる可能性が示された。またHAUを発症したキャリアは無症候性キャリアよりHAMを発症する可能性が高いことをHAU症例に説明することは、HAMの早期診断に役立つ可能性がある。

Report

(9 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (12 results)

All 2022 2021 2020 2019 2018 2017 2016

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 特集 眼疾患を起こすウイルスたちを知る HTLV-12022

    • Author(s)
      中尾久美子
    • Journal Title

      臨床眼科

      Volume: 76 Issue: 12 Pages: 1564-1568

    • DOI

      10.11477/mf.1410214631

    • ISSN
      0370-5579, 1882-1308
    • Year and Date
      2022-11-15
    • Related Report
      2022 Research-status Report
  • [Journal Article] ぶどう膜炎(HTLV-1関連ぶどう膜炎:HAU)2021

    • Author(s)
      中尾久美子
    • Journal Title

      OCULISTA

      Volume: 104 Pages: 33-39

    • Related Report
      2021 Research-status Report
  • [Journal Article] Anti-human T-cell leukemia virus type 1 (HTLV-1) antibody assays in cerebrospinal fluid for the diagnosis of HTLV-1-associated myelopathy/tropical spastic paraparesis2021

    • Author(s)
      Kodama Daisuke, Tanaka Masakazu, Matsuzaki Toshio, Nozuma Satoshi, Matsuura Eiji, Takashima Hiroshi, Izumo Shuji, Kubota Ryuji
    • Journal Title

      Journal of Clinical Microbiology

      Volume: - Issue: 5

    • DOI

      10.1128/jcm.03230-20

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Human T-lymphotropic virus type 1 (HTLV-1) and cellular immune response in HTLV-1-associated myelopathy/tropical spastic paraparesis2020

    • Author(s)
      Nozuma S, Kubota R, Jacobson S
    • Journal Title

      J Neurovirol

      Volume: 26 Issue: 5 Pages: 652-663

    • DOI

      10.1007/s13365-020-00881-w

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Expression of TSLC1 in patients with HAM/TSP2020

    • Author(s)
      Takenouchi N, Tanaka M, Sato T, Yao J, Fujisawa JI, Izumo S, Kubota R, Matsuura E.
    • Journal Title

      J Neurovirol

      Volume: 26 Issue: 3 Pages: 404-414

    • DOI

      10.1007/s13365-020-00838-z

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Variants in IL23R-C1orf141 and ADO-ZNF365-EGR2 are associated with susceptibility to Vogt-Koyanagi-Harada disease in Japanese population.2020

    • Author(s)
      Sakono T, Meguro A, Takeuchi M, Yamane T, Teshigawara T, Kitaichi N, Horie Y, Namba K, Ohno S, Nakao K, Sakamoto T, Sakai T, Nakano T, Keino H, Okada AA, Takeda A, Ito T, Mashimo H, Ohguro N, Oono S, Enaida H, Okinami S, Horita N, Ota M, Mizuki N.
    • Journal Title

      PLoS One

      Volume: 15 Issue: 5 Pages: 233464-233464

    • DOI

      10.1371/journal.pone.0233464

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Systemic diseases in patients with HTLV-1-associated uveitis.2018

    • Author(s)
      Nakao K, Abematsu N, Sakamoto T
    • Journal Title

      Br J Ophthalmol

      Volume: 102 Issue: 3 Pages: 373-376

    • DOI

      10.1136/bjophthalmol-2017-310658

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of host restriction factors and the HTLV-1 subtype on susceptibility to HTLV-1-associated myelopathy/tropical spastic paraparesis.2017

    • Author(s)
      Nozuma S, Matsuura E, Kodama D, Tashiro Y, Matsuzaki T, Kubota R, Izumo S, Takashima H
    • Journal Title

      Retrovirology

      Volume: 14 Issue: 1 Pages: 26-26

    • DOI

      10.1186/s12977-017-0350-9

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] HTLV-1 associated myelopathy/tropical spastic paraparesis (HAM/TSP): A comparative study to identify factors that influence disease progression.2016

    • Author(s)
      Matsuura E, Nozuma S, Tashiro Y, Kubota R, Izumo S, Takashima H
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 371 Pages: 112-116

    • DOI

      10.1016/j.jns.2016.10.030

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] HAM 患者 HTLV-1 感染細胞のマイクロアレイ解析による治療標的分子の探索2019

    • Author(s)
      久保田 龍二、田中 正和、春口 志門、児玉 大介、松浦 英治、高嶋 博
    • Organizer
      第6回日本HTLV-1学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] General prognosis for HTLV-1-associated uveitis2017

    • Author(s)
      Nakao K, Abematsu N, Sakamoto T
    • Organizer
      18th INternational Converence en Human Retrovirology HTLV and Related VIruses
    • Place of Presentation
      ホテルグランドアーク半蔵門(東京都千代田区)
    • Year and Date
      2017-03-07
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] HTLV-1関連ぶどう膜炎の全身的予後2016

    • Author(s)
      中尾久美子、あべ松徳子、坂本泰二
    • Organizer
      第3回日本HTLV-1学会学術集会
    • Place of Presentation
      鹿児島県市町村自治会館(鹿児島県鹿児島市)
    • Year and Date
      2016-08-26
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2025-01-30  

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