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2017 Fiscal Year Annual Research Report

Development of biomarkers useful for early diagnosis and treatment optimization of ATTR amyloidosis

Research Project

Project/Area Number 15K09336
Research InstitutionShinshu University

Principal Investigator

関島 良樹  信州大学, 学術研究院医学系, 准教授 (60322715)

Project Period (FY) 2015-04-01 – 2018-03-31
Keywordsアミロイドーシス / トランスサイレチン
Outline of Annual Research Achievements

H29年度は,血中のミスフォールドしたTTRオリゴマーに特異的に結合するペプチドプローブを開発しH28年度までに採取した血液サンプルを用いて,解析を行った.その結果,健常者や遺伝子変異を有する未発症者に比べ遺伝性ATTRアミロイドーシス患者ではTTRオリゴマー濃度が高いこと,肝移植やTTR四量体安定化薬による治療でTTRオリゴマー濃度が低下することを示した.本プローブは本症の早期診断や治療の有効性評価に利用できる可能性がある.この結果は,国際誌(Sci Transl Med 9: eaam7621, 2017)に論文発表した.
さらに,非侵襲的なバイオマーカーとして,11C-Pittsburgh compound B (PIB)を用いたPETのATTRアミロイドーシス診療における有用性を検討した.従来PIB-PETは,脳画像のみが撮影されていたが,我々は本年度,PIB-PETの全身撮影を試み,その有用性を明らかにした.具体的には, 7名の遺伝性ATTRアミロイドーシス患者,1名のTTR遺伝子変異保因者,7名のALアミロイドーシス患者に対して全身PIB-PETを実施し,臨床症状および組織生検所見との対比を行ったその結果,PIB-PETは脳に加え,心臓,胃などの上部消化管,脾臓,涙腺,唾液腺,甲状腺,リンパ節,皮膚,筋肉などのアミロイド沈着を鋭敏に検出することが可能であることが明らかになった.このうち,心臓,胃に関しては臓器障害との関連が良好であり,脾臓,涙腺,唾液腺,甲状腺,リンパ節,皮膚,筋肉に関しては,臨床的に無症状のアミロイド沈着も検出できることが明らかになった.この結果は,国際誌(Eur J Nucl Med Mol Imaging 45: 452-461, 2018)に論文発表した.

  • Research Products

    (21 results)

All 2018 2017

All Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results) Presentation (10 results) (of which Int'l Joint Research: 6 results,  Invited: 9 results)

  • [Journal Article] Visualisation of multiple organ amyloid involvement in systemic amyloidosis using 11C-PiB-PET imaging2018

    • Author(s)
      Ezawa N, Katoh N, Oguchi K, Yoshinaga T, Yazaki M, Sekijima Y
    • Journal Title

      Eur J Nucl Med Mol Imaging

      Volume: 45 Pages: 452-461

    • DOI

      10.1007/s00259-017-3814-1

    • Peer Reviewed
  • [Journal Article] First nationwide survey on systemic wild-type ATTR amyloidosis in Japan2018

    • Author(s)
      Sekijima Y, Yazaki M, Ueda M, Koike H, Yamada M, Ando Y
    • Journal Title

      Amyloid

      Volume: 25 Pages: 8-10

    • DOI

      10.1080/13506129.2017.1409706

    • Peer Reviewed
  • [Journal Article] Diagnosis and management of transthyretin familial amyloid polyneuropathy in Japan: red-flag symptom clusters and treatment algorithm2018

    • Author(s)
      Sekijima Y, Ueda M, Koike H, Misawa S, Ishii T, Ando Y
    • Journal Title

      Orphanet J Rare Dis

      Volume: 13 Pages: 6

    • DOI

      10.1186/s13023-017-0726-x

    • Peer Reviewed
  • [Journal Article] 遺伝性ATTRアミロイドーシス2018

    • Author(s)
      関島良樹
    • Journal Title

      Clinical Neuroscience

      Volume: 36 Pages: 198-199

    • Int'l Joint Research
  • [Journal Article] ATTR型CAAの臨床的意義2018

    • Author(s)
      関島良樹
    • Journal Title

      神経内科

      Volume: 88 Pages: 300-304

    • Int'l Joint Research
  • [Journal Article] Tafamidis for the Treatment of Hereditary Transthyretin Amyloid Cardiomyopathy: A Case Report2017

    • Author(s)
      Fujita T, Inomata T, Kaida T, Iida Y, Ikeda Y, Nabeta T, Ishii S, Maekawa E, Naruke T, Koitabashi T, Kitamura E, Sekijima Y, Ako J
    • Journal Title

      Cardiology

      Volume: 137 Pages: 74-77

    • DOI

      10.1159/000455089

    • Peer Reviewed
  • [Journal Article] Cardiac amyloidosis associated with amyloidogenic transthyretin V122I variant in an elderly Japanese woman2017

    • Author(s)
      Yoshinaga T, Yazaki M, Ohno M, Komada S, Koyama J, Sekijima Y
    • Journal Title

      Circ J

      Volume: 81 Pages: 893-894

    • DOI

      10.1253/circj.CJ-16-1202

    • Peer Reviewed
  • [Journal Article] Marked biochemical difference in amyloid proportion between intra- and extraocular tissues in a liver-transplanted patient with hereditary ATTR amyloidosis2017

    • Author(s)
      Yoshinaga T, Yazaki M, Kametani F, Sekijima Y, Iesato Y, Miyahara T, Tsuchiya-Suzuki A, Sano K, Higuchi K, Ikeda SI
    • Journal Title

      Amyloid

      Volume: 24 Pages: 17-23

    • DOI

      10.1080/13506129.2016.1276055

    • Peer Reviewed
  • [Journal Article] Pseudo-homozygous mutation due to a primer site polymorphism in hereditary ATTR amyloidosis -A pitfall of PCR-based genetic testing2017

    • Author(s)
      Shibata Y, Matsushima M, Yabe I, Matsuda K, Nagai A, Kano T, Yamada M, Sekijima Y, Sasaki H
    • Journal Title

      Amyloid

      Volume: 24 Pages: 66-67

    • DOI

      10.1080/13506129.2017.1307821

    • Peer Reviewed
  • [Journal Article] Peptide probes detect misfolded transthyretin oligomers in the plasma of hereditary amyloidosis patients2017

    • Author(s)
      Schonhoft JD, Monteiro C, Plate L, Eisele YS, Kelly JM, Boland D, Parker CG, Cravatt BF, Teruya S, Helmke S, Maurer M, Berk J, Sekijima Y, Novais M, Coelho T, Powers ET, Kelly JW
    • Journal Title

      Sci Transl Med

      Volume: 9 Pages: eaam7621

    • DOI

      10.1126/scitranslmed.aam7621

    • Peer Reviewed
  • [Journal Article] アミロイドニューロパチーの診断と治療の最前線2017

    • Author(s)
      関島良樹
    • Journal Title

      Peripheral Nerve

      Volume: 28 Pages: 246-250

    • Int'l Joint Research
  • [Presentation] Japanese consensus of treatments for hereditary ATTR amyloidosis2018

    • Author(s)
      Sekijima Y, Ueda M, Koike H, Misawa S, Ando Y
    • Organizer
      The XVIth International Symposium on Amyloidosis
    • Int'l Joint Research / Invited
  • [Presentation] Tools to define the earliest diagnosis2018

    • Author(s)
      Sekijima Y
    • Organizer
      The XVIth International Symposium on Amyloidosis
    • Int'l Joint Research / Invited
  • [Presentation] First nationwide survey on systemic wild-type ATTR amyloidosis in Japan2018

    • Author(s)
      Sekijima Y, Yazaki M, Ueda M, Koike H, Yamada M, Ando Y
    • Organizer
      The XVIth International Symposium on Amyloidosis
    • Int'l Joint Research
  • [Presentation] Treatment for ATTR Amyloidosis2017

    • Author(s)
      Sekijima Y
    • Organizer
      Samsung amyloidosis symposium 2017
    • Int'l Joint Research / Invited
  • [Presentation] Prevalence of Transthyretin-type cerebral amyloid angiopathy in ATTR-FAP patients and its early diagnosis using PiB-PET Imaging2017

    • Author(s)
      Sekijima Y
    • Organizer
      2017 Peripheral Nerve Society Annual Meeting
    • Int'l Joint Research / Invited
  • [Presentation] Current topics in Amyloidosis -from Alzheimer disease to ATTR amyloidosis-2017

    • Author(s)
      Sekijima Y
    • Organizer
      XXIII World Congress of Neurology
    • Int'l Joint Research / Invited
  • [Presentation] アミロイドーシス全国疫学調査における本邦の野生型ATTRアミロイドーシス診療の実態2017

    • Author(s)
      関島良樹,矢崎正英,植田光晴,小池春樹,山田正仁,安東由喜雄
    • Organizer
      第5回日本アミロイドーシス研究会学術集会
    • Invited
  • [Presentation] 野生型ATTRアミロイドーシスの早期診断2017

    • Author(s)
      関島良樹
    • Organizer
      第5回日本アミロイドーシス研究会学術集会
    • Invited
  • [Presentation] 遺伝性ATTRアミロイドーシスの病態に基づいた疾患修飾療法の開発2017

    • Author(s)
      関島良樹
    • Organizer
      第35回日本神経治療学会総会
    • Invited
  • [Presentation] Transthyretin (ATTR)-type cerebral amyloid angiopathy2017

    • Author(s)
      Sekijima Y
    • Organizer
      第36回日本認知症学会学術集会
    • Invited

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Published: 2018-12-17  

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