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Exploitation of new therapies for HTLV-I-assotiated myelopathy

Research Project

Project/Area Number 14207031
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Neurology
Research InstitutionKagoshima University

Principal Investigator

OSAME Mitsuhiro  Kagoshima University, Graduate School of Medical and Dental Sciences, Professor, 大学院・医歯学総合研究科, 教授 (10041435)

Co-Investigator(Kenkyū-buntansha) ARIMURA Kimiyoshi  Kagoshima University, Graduate School of Medical and Dental Sciences, Associate Professor, 大学院・医歯学総合研究科, 助教授 (20159510)
UMEHARA Fujio  Kagoshima University, Graduate School of Medical and Dental Sciences, Assistant Professor, 大学院・医歯学総合研究科, 講師 (20271140)
KUBOTA Ryuji  Kagoshima University, Graduate School of Medical and Dental Sciences, Associate Professor, 大学院・医歯学総合研究科, 助教授 (70336337)
IZUMO Shuji  Kagoshima University, Graduate School of Medical and Dental Sciences, Professor, 大学院・医歯学総合研究科, 教授 (30143811)
USUKU Koichiro  Kagoshima University, Graduate School of Medical and Dental Sciences, Associate Professor, 大学院・医歯学総合研究科, 助教授 (30281223)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥37,050,000 (Direct Cost: ¥28,500,000、Indirect Cost: ¥8,550,000)
Fiscal Year 2004: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2003: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2002: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
KeywordsHTLV-I-associated myelopathy / HTLV-I proviral load / Therapy / Prognosis / metalloproteinase inhibitor / susceptible genes / cytotoxic T lymphocytes / 予後判定 / dN / dS比 / 治療薬開発 / 高齢発症 / MMP / MMP阻害剤 / HTLM-Iプロウイルス量
Research Abstract

In this research project, we have deeply improved our understanding for the pathogenesis of HTLV-I-associated myelopathy(HAM) and developed a hopeful therapy for the disease. It is an initial event that HTLV-I-infected cells infiltrate into the central nervous system for the development of HAM, where matrix metalloproteinase(MMP)-2 and -9 play an important role. We found that a selective MMP inhibitor specific for MMP-2 and -9, N-Biphenyl sulfonyl-phenylalanine hydroxamic acid(BPHA), significantly inhibited migration activity of CD4+ T lymphocytes (which are a main reservoir of HTLV-I) from HAM patients. This suggests that the compound is a candidate for a new therapy for HAM patients. We had identified many genetic factors which increase susceptibility for the disease, and we newly identified two genetic factors, polymorphism of interleukin-10 promoter, and the length of tandem repeat in MMP-9 promoter. Using these host genetic factors, we made a formula to predict the risk of the development of HAM. When we utilized it for HTLV-I asymptomatic carriers, the carriers with high risk values showed faint abnormalities on the neurological examination, suggesting that the formula is very useful for prediction of the prognosis. In a genetic analysis of HTLV-I, the ratio of non-synonymous change to synonymous change (dN/dS ratio) of HTLV-I gene was lower in HAM patients than in HTLV-I carriers, implying that viral replication is more effectively inhibited in HAM patients than in the carriers. Moreover, HAM patients with HLA-A^*02 had lower dN/dS ratio than those without HLA-A^*02, suggesting that HL-A^*02 has an inhibitory effect on viral replication. Additionally, an analysis of dN/dS ratio, cytotoxic T lymphocytes(CTL) epitopes and frequency of mutant virus demonstrated that CTL had antiviral pressure in vivo, however, a mutant virus did not predominate. Further studies are needed to establish a more effective therapy for HAM patients.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (50 results)

All 2005 2004 2003 2002 Other

All Journal Article (38 results) Publications (12 results)

  • [Journal Article] Differences in viral and host genetic risk factors for development of human T-cell lymphotropic virus type 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis between Iranian and Japanese HTLV-1-infected individuals.2005

    • Author(s)
      Sabouri AH, et al.
    • Journal Title

      J Gen Virol. 86(3)

      Pages: 773-781

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Differences in viral and host genetic risk factors for development of human T-cell lymphotropic virus type 1(HTLV-1)-associated myelopathy/tropical spastic paraparesis between Iranian and Japanese HTLV-1-infected individuals.2005

    • Author(s)
      Sabouri AH, et al.
    • Journal Title

      J Gen Virol. 86(Pt3)

      Pages: 773-781

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Decreased human T lymphotropic virus type I (HTLV-I) provirus load and alteration in T cell phenotype after interferon-alpha therapy for HTLV-I-associated myelopathy/ tropical spastic paraparesis.2004

    • Author(s)
      Saito M, et al.
    • Journal Title

      J Infect Dis. 189(1)

      Pages: 29-40

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Serum concentration and genetic polymorphism in the 5'-untraslated region of VEGF is not associated with susceptibility to HTLV-I associated myelopathy/tropical spastic paraparesis (HAM/TSP) in HTLV-I infected2004

    • Author(s)
      Saito M, et al.
    • Journal Title

      J Neurol Sci. 219(1-2)

      Pages: 157-161

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Polymorphism in the interleukin-10 promoter affects both provirus load and the risk of human T lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis.2004

    • Author(s)
      Sabouri AH, et al.
    • Journal Title

      J Infect Dis. 190(7)

      Pages: 1279-1285

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Longer dinucleotide repeat polymorphism in matrix metalloproteinase-9 (MMP-9) gene promoter which correlates with higher HTLV-I Tax mediated transcriptional activity influences the risk of HTLV-I associated myelopathy/tropical spastic paraparesis (HAM/TSP)2004

    • Author(s)
      Kodama D, et al.
    • Journal Title

      J Neuroimmunol. 156(1-2)

      Pages: 188-194

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Chronic progressive cervical myelopathy with HTLV-I infection : Variant form of HAM/TSP?2004

    • Author(s)
      Umehara F, et al.
    • Journal Title

      Neurology. 63(7)

      Pages: 1276-1280

    • NAID

      10016918678

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Human T cell lymphotropic virus type I (HTLV-I) p12I is dispensable for HTLV-I transmission and maintenance of infection in vivo.2004

    • Author(s)
      Furukawa Y, et al.
    • Journal Title

      AIDS Res Hum Retroviruses. 20(10)

      Pages: 1092-1099

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Decreased human T lymphotropic virus type I(HTLV-I) provirus load and alteration in T cell phenotype after interferon-alpha therapy for HTLV-I-associated myelopathy/tropical spastic paraparesis.2004

    • Author(s)
      Saito M, et al.
    • Journal Title

      J Infect Dis. 189(1)

      Pages: 29-40

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Serum concentration and genetic polymorphism in the 5'-untraslated region of VEGF is not associated with susceptibility to HTLV-I associated myelopathy/tropical spastic paraparesis(HAM/TSP) in HTLV-I infected individuals.2004

    • Author(s)
      Saito M, et al.
    • Journal Title

      J Neurol Sci. 219(1-2)

      Pages: 157-161

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Longer dinucleotide repeat polymorphism in matrix metalloproteinase-9(MMP-9) gene promoter which correlates with higher HTLV-I Tax mediated transcriptional activity influences the risk of HTLV-I associated myelopathy/tropical spastic paraparesis(HAM/TSP).2004

    • Author(s)
      Kodama D, et al.
    • Journal Title

      J Neuroimmunol. 156(1-2)

      Pages: 188-194

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Human T cell lymphotropic virus type I(HTLV-I) p12I is dispensable for HTLV-I transmission and maintenance of infection in vivo.2004

    • Author(s)
      Furukawa Y, et al.
    • Journal Title

      AIDS Res Hum Retroviruses 20(10)

      Pages: 1092-1099

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Serum concentration and genetic polymorphism in the 5'-untraslated region of VEGF is not associated with susceptibility to HTLV-I associated myelopathy/tropical spastic paraparesis (HAM/TSP) in HTLV-I infected individuals.2004

    • Author(s)
      Saito M, et al.
    • Journal Title

      J Neurol Sci. 219(1-2)

      Pages: 157-161

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Longer dinucleotide repeat polymorphism in matrix metalloproteinase-9 (MMP-9) gene promoter which correlates with higher HTLV-I Tax mediated transcriptional activity influences the risk of HTLV-I associated myelopathy/tropical spastic paraparesis (HAM/TSP).2004

    • Author(s)
      Kodama D, et al.
    • Journal Title

      J Neuroimmunol. 156(1-2)

      Pages: 188-194

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The clinical and pathological features of peripheral neuropathy accompanied with HTLV-I associated myelopathy.2003

    • Author(s)
      Kiwaki T, et al.
    • Journal Title

      J Neurol Sci 206(1)

      Pages: 17-21

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Degenerate specificity of HTLV-I-specific CD8+ T cells during viral replication in patients with HTLV-I-associated myelopathy (HAM/TSP)2003

    • Author(s)
      Kubota R, et al.
    • Journal Title

      Blood 101(8)

      Pages: 3074-3081

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Low frequency of CD94/NKG2A+ T lymphocytes in patients with HTLV-1-associated myelopathy/tropical spastic paraparesis, but not in asymptomatic carriers.2003

    • Author(s)
      Saito M, et al.
    • Journal Title

      Blood 102(2)

      Pages: 577-584

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Usefulness of proviral load measurement for monitoring of disease activity in individual patients with human T-lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis.2003

    • Author(s)
      Takenouchi N, et al.
    • Journal Title

      J Neurovirol. 9(1)

      Pages: 29-35

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Spread of HTLV-I between lymphocytes by virus-induced polarization of the cytoskeleton.2003

    • Author(s)
      Igakura T, et al.
    • Journal Title

      Science. 299(5613)

      Pages: 1713-1716

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Human T-cell lymphotropic virus type I (HTLV-I)-related clinical and laboratory findings for HTLV-I-infected blood donors.2003

    • Author(s)
      Furukawa Y, et al.
    • Journal Title

      J Acquir Immune Defic Syndr. 32(3)

      Pages: 328-334

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Different cytokine production on tax-expressing cells between patients with human T cell lymphotropic virus type I (HTLV-I)-associated myelopathy/tropical spastic paraparesis and asymptomatic HTLV-I carriers.2003

    • Author(s)
      Furukawa Y, et al.
    • Journal Title

      J Infect Dis. 187(7)

      Pages: 1116-1125

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Human T-cell lymphotropic virus type I and neurological diseases2003

    • Author(s)
      Nagai M, et al.
    • Journal Title

      J Neurovirol. 9(2)

      Pages: 228-235

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] A C77G point mutation in CD45 exon4, which is associated with the development of multiple sclerosis and increased susceptibility to HIV-1 infection, is undetectable in Japanese population.2003

    • Author(s)
      Sabouri AH, et al.
    • Journal Title

      Eur J Neurol. 10(6)

      Pages: 737-739

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The clinical and pathological features of peripheral neuropathy accompanied with HTLV-I associated myelopathy.2003

    • Author(s)
      Kiwaki T, et al.
    • Journal Title

      J Neurol Sci. 206(1)

      Pages: 17-21

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Degenerate specificity of HTLV-1-specific CD8+ T cells during viral replication in patients with HTLV-1-associated myelopathy (HAM/TSP).2003

    • Author(s)
      Kubota R, et al.
    • Journal Title

      Blood 101(8)

      Pages: 3074-3081

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Spread of HTLV-I between lymphocytes by virus-induced polarization of the cytoskeleton.2003

    • Author(s)
      Igakura T, et al.
    • Journal Title

      Science 299(5613)

      Pages: 1713-1716

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Human T-cell lymphotropic virus type I(HTLV-I)-related clinical and laboratory findings for HTLV-I-infected blood donors.2003

    • Author(s)
      Furukawa Y, et al.
    • Journal Title

      J Acquir Immune Defic Syndr. 32(3)

      Pages: 328-334

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Different cytokine production in tax-expressing cells between patients with human T cell lymphotropic virus type I(HTLV-I)-associated myelopathy/tropical spastic paraparesis and asymptomatic HTLV-I carriers.2003

    • Author(s)
      Furukawa Y, et al.
    • Journal Title

      J Infect Dis. 187(7)

      Pages: 1116-1125

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Human T-cell lymphotropic virus type I and neurological diseases.2003

    • Author(s)
      Nagai M, et al.
    • Journal Title

      J Neurovirol. 9(2)

      Pages: 228-235

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] A C77G point mutation in CD45 exon 4, which is associated with the development of multiple sclerosis and increased susceptibility to HIV-1 infection, is undetectable in Japanese population.2003

    • Author(s)
      Sabouri AH, et al.
    • Journal Title

      Eur J Neurol. 10(6)

      Pages: 737-739

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Selective matrix metalloproteinase inhibitor, N-biphenyl sulfonyl phenylalanine hydroxamic acid, inhibits the migration of CD4+ T lymphocytes in patients with HTLV-I-associated myelopathy.2002

    • Author(s)
      Ikegami M, et al.
    • Journal Title

      J Neuroimmunol. 127(1-2)

      Pages: 134-138

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Polygenic control of human T lymphotropic virus type I (HTLV-I) provirus load and the risk of HTLV-I-associated myelopathy / tropical spastic paraparesis.2002

    • Author(s)
      Vine AM, et al.
    • Journal Title

      J Infect Dis. 186(7)

      Pages: 932-939

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Failure to detect HTLV type 1 DNA from HTLV type 1-seronegative patients with chronic progressive spastic paraparesis in Kagoshima.2002

    • Author(s)
      Nagai M, et al.
    • Journal Title

      AIDS Res Hum Retroviruses. 18(14)

      Pages: 1089-1090

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Pathological mechanisms of human T-cell lymphotropic virus type I-associated myelopathy (HAM/TSP).2002

    • Author(s)
      Osame M.
    • Journal Title

      J Neurovirol. 8(5)

      Pages: 359-364

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Molecular analysis of T cell clonotypes in muscle-infiltrating lymphocytes from patients with human T lymphotropic virus type 1 polymyositis2002

    • Author(s)
      Satio M, et al.
    • Journal Title

      J Infect Dis. 196(9)

      Pages: 1231-1241

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] A patient with acute-onset HAM/TSP after blood transfusion complicated with pseudopseudohypoparathyroidism.2002

    • Author(s)
      Yoshida Y, et al.
    • Journal Title

      Intern Med. 41(10)

      Pages: 899-900

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Polygenic control of human T lymphotropic virus type I(HTLV-I) provirus load and the risk of HTLV-I-associated myelopathy/tropical spastic paraparesis.2002

    • Author(s)
      Vine AM, et al.
    • Journal Title

      J Infect Dis. 186(7)

      Pages: 932-939

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Molecular analysis of T cell clonotypes in muscle-infiltrating lymphocytes from patients with human T lymphotropic virus type 1 polymyositis.2002

    • Author(s)
      Saito M, et al.
    • Journal Title

      J Infect Dis. 186(9)

      Pages: 1231-1241

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Saito M, et al.: "Decreased human T lymphotropic virus type I (HTLV-I) provirus load and alteration in T cell phenotype after interferon-alpha therapy for HTLV-I-associated myelopathy/tropical spastic paraparesis."J Infect Dis.. 189(1). 29-40 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Furukawa Y, et al.: "Human T-cell lymphotropic virus type I (HTLV-I)-related clinical and laboratory findings for HTLV-I-infected blood donors."J Acquir Immune Defic Syndr.. 32(3). 328-334 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Igakura T, et al.: "Spread of HTLV-I between lymphocytes by virus-induced polarization of the cytoskeleton."Science. 299(5613). 1713-1716 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takenouchi N, et al.: "Usefulness of proviral load measurement for monitoring of disease activity in individual patients with human T-lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis."J Neurovirol.. 9(1). 29-35 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Furukawa Y, et al.: "Different cytokine production in tax expressing cells between patients with human T cell lymphotropic virus type I (HTLV-I)-associated myelopathy/tropical spastic paraparesis and asymptomatic HTLV-I carriers."J Infect Dis.. 187(7). 1116-1125 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Saito M, et al.: "Low frequency of CD94/NKG2A+ T lymphocytes in patients with HTLV-1-associated myelopathy/tropical spastic paraparesis, but not in asymptomatic carriers."Blood. 102(2). 577-584 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ikegami M, et al.: "Selective matrix metalloproteinase inhibitor, N-biphenyl sulfonyl phenylalanine hydroxamic acid, inhibits the migration of CD4+T lymphocytes in patients with HTLV-I-associated myelopathy"J Neuroimmunol.. 127(1-2). 134-138 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Matsuzaki T, et al.: "HTLV-I poviral load correlates with progression of motor disability in HAM/TSP : analysis of 239 HAM/TSP patients including 64 patients followed up for 10 years"J Neuroimmunol.. 7(3). 228-234 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Osame M.: "Pathological mechanisms of human T-cell lymphotropic virus type I-associated myelopathy (HAM/TSP)"J Neurovirol.. 8(5). 359-364 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Nagai M, et al.: "Failure to detect HTLV type 1 DNA from HTLV type 1-seronegative patients with chronic progressive spastic paraparesis in Kagoshima"AIDS Res Hum Retroviruses.. 18(14). 1089-1090 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yoshida Y, et al.: "A patient with acute-onset HAM/TSP after blood transfusion complicated with pseudopseudohypoparathyroidism"Intern Med.. 41(10). 899-900 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Saito M, et al.: "Molecular analysis of T cell clonotypes in muscle-infiltrating lymphocytes from patients with human T lymphotropic virus type 1 polymyositis"J Infect Dis.. 196(9). 1231-1241 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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