• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Analysis for hematopoietic dynamics of clonal expansion in PNH

Research Project

Project/Area Number 19K08864
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54010:Hematology and medical oncology-related
Research InstitutionOsaka University

Principal Investigator

西村 純一  大阪大学, 医学系研究科, 助教 (80464246)

Co-Investigator(Kenkyū-buntansha) 植田 康敬  大阪大学, 医学系研究科, 助教 (30533848)
高森 弘之  大阪大学, 医学部附属病院, 医員 (80792077)
Project Period (FY) 2019-04-01 – 2020-03-31
Project Status Discontinued (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords発作性夜間ヘモグロビン尿症 / PIGA遺伝子 / PNHクローン / クローン性拡大 / 造血幹細胞 / クロ-ン性拡大
Outline of Research at the Start

発作性夜間ヘモグロビン尿症(paroxysmal nocturnal hemoglobinuria: PNH)は、PIGA遺伝子に後天的変異を持った造血幹細胞がクロ-ン性に拡大する造血幹細胞疾患である。どのくらいの数の造血幹細胞が、またどのくらいの期間、造血を支持できるのかという知見は乏しい。PIGA遺伝子の発見から25年を経て、遺伝子発見初期に同定されているPNHクローンが、その後25年に渡り造血を支持しているのか、それともクローンの交代現象が起こっているのかを検証し、幹細胞造血のダイナミズムを明らかにする。

Outline of Annual Research Achievements

発作性夜間ヘモグロビン尿症(paroxysmal nocturnal hemoglobinuria: PNH)の責任遺伝子としてのPIGA遺伝子の発見から25年を経て、遺伝子発見初期に同定されているPNHクローンが、その後どのように変遷したのかを解析するのが目的である(NEJM 330,249,1994, Blood 99,2748,2002, Am J Hematol 51,229,1996, Blood 108,4232,2006)。関連施設の症例について追跡を試みるも、新たに解析可能となった症例はなかった。当院症例(J1、J20)について臨床データを収集した。J1は、PNHクローンの割合が減少し(GPI(-)RBC 4.4%、GPI(-)PMN 42.8%)、LDH(270IU/L)などの溶血所見も顕著ではなくなっていた。その後、通院不可能となり、遺伝子解析は行えていない。J20については、HMGA2遺伝子がPNHクローンの拡大に寄与している症例であるが、その後も典型的なPNH所見を呈していた(GPI(-)RBC 97.7%、GPI(-)PMN 90.8%)。実際には、抗補体薬により溶血はコントロールされている。PIGA遺伝子解析を行ったところ、骨髄サンプルにおいて新たな変異クローンが同定されたものの、メジャークローンは維持されており、25年に渡り1つのクローンが造血を維持していることが確認された。引き続き、各分画、各分化段階におけるPNHクローンの変遷などの解析をすすめる予定であったが、研究代表者の辞職に伴い、今後の継続を断念した。

Report

(1 results)
  • 2019 Annual Research Report
  • Research Products

    (10 results)

All 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Journal Article] Successful Treatment of a PNH Patient Non-Responsive to Eculizumab With the Novel Complement C5 Inhibitor Coversin (Nomacopan)2020

    • Author(s)
      Schols S, Nunn MA, Mackie I, Weston-Davies W, Nishimura JI, Kanakura Y, Blijlevens N, Muus P, Langemeijer S.
    • Journal Title

      Br J Haematol

      Volume: 188 Issue: 2 Pages: 334-337

    • DOI

      10.1111/bjh.16305

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Complement C5 Inhibitor Crovalimab in Paroxysmal Nocturnal Hemoglobinuria2020

    • Author(s)
      Roth A, Nishimura JI, Nagy Z, Gaa;l-Weisinger J, Panse J, Yoon SS, Egyed M, Ichikawa S, Ito Y, Kim JS, Ninomiya H, Schrezenmeier H, Sica S, Usuki K, Sicre de Fontbrune F, Soret J, Sostelly A, Higginson J, Dieckmann A, Gentile B, et al.
    • Journal Title

      Blood

      Volume: 135 Issue: 12 Pages: 912-920

    • DOI

      10.1182/blood.2019003399

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparative Study on Baseline Clinical Characteristics of Asian Versus non-Asian Patients With Paroxysmal Nocturnal Hemoglobinuria2019

    • Author(s)
      Sakurai M, Jang JH, Chou WC, Kim JS, Wilson A, Nishimura JI, Chiou TJ, Kanakura Y, Lee JW, Okamoto S.
    • Journal Title

      Int J Hematol

      Volume: 110 Issue: 4 Pages: 411-418

    • DOI

      10.1007/s12185-019-02699-7

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Complement and inflammasome overactivation mediates paroxysmal nocturnal hemoglobinuria with autoinflammation.2019

    • Author(s)
      Hochsmann B, Murakami Y, Osato M, Knaus A, Kawamoto M, Inoue N, Hirata T, Murata S, Anliker M, Eggermann T, Jager M, Floettmann R, Hollein A, Murase S, Ueda Y, Nishimura JI, Kanakura Y, Kohara N, Schrezenmeier H, Krawitz PM, Kinoshita T.
    • Journal Title

      The Journal of Clinical Investigation

      Volume: 129 Issue: 12 Pages: 5123-5136

    • DOI

      10.1172/jci123501

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Terminal complement inhibitors: Anti-C5: SKY592019

    • Author(s)
      Nishimura J, Roth A
    • Organizer
      The New Era of Aplastic Anemia and Paroxysmal Nocturnal Hemoglobinuria: In memory of our friend Bruno Rotoli
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The Relationship Between the Pretreatment PNH Clone Size and Clinical Course in Patients with Bone Marrow Failure Syndromes: Interim Analysis of Japanese Multicenter Prospective Study2019

    • Author(s)
      Ueda Y, Hosokawa K, Ishiyama K, Takamori H, Yonemura Y, Obara N, Noji H, Takahashi H, Shirasugi Y, Matsuda T, Ando K, Shichishima T, Ikezoe T, Chiba S, Ninomiya H, Kawaguchi T, Nishimura J, Kanakura Y, Nakao S
    • Organizer
      24th Congress of the European Hematology Association
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Long Term Follow-Up of PNH Patients Treated with the Smart Anti-hC5 Antibody (SKY59/Ro7112689) in the Open Label Extension (OLE) of the Composer Trial2019

    • Author(s)
      Roth A, Nagy Z, de Latour RP, Ninomya H, Panse J, Yoon SS, Egyed M, Ichikawa S, Ito Y, Kim JS, Schrezenmeier H, Sica S, Usuki K, Sostelly A, Higginson J, Dieckmann A, Anzures-Cabreras J, Shinomiya K, Klughammer B, Jahreis A, Bucher C, Nishimura J
    • Organizer
      24th Congress of the European Hematology Association
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Breakthrough Hemolysis in Adult Patients with Paroxysmal Nocturnal Hemoglobinuria Treated with Ravulizumab: Results of a 52-Week Extension from Two Phase 3 Studies2019

    • Author(s)
      Hill A, Piatek CI, de Latour RP, Wong LLL, Wells RA, Brodsky RA, Kim JS, Nishimura J, Kuriakose P, Pavani R, Liu P, Ortiz S, Schrezenmeier H, Lee JW, Kulasekararaj A
    • Organizer
      The American Society of Hematology 61st Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterizing C5 Inhibition with the SMART-Ig Anti-hC5 Antibody Crovalimab in PNH Patients Using Free Available Paratopes2019

    • Author(s)
      Sostelly A, Soubret A, Bucher C, Buatois S, Charoin JE, Jordan G, Klughammer B, Dieckmann A, Fukuzawa T, Gotanda K, Shinomiya K, Yoon SS, Panse JP, Nishimura J, Roth A, Nagy Z, de Latour RP
    • Organizer
      The American Society of Hematology 61st Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Exposure-Response Relationship of the SMART-Ig Anti-hC5 Antibody Crovalimab (SKY59): Results from the Umbrella Phase 1/2 Composer Trial in Healthy Volunteers and PNH Patients2019

    • Author(s)
      Sostelly A, Buatois S, Soubret A, Winter E, Klughammer B, Hsu JC, Jordan G, Bucher C, CharoinJE, Gotanda K, Shinomiya K, Nagy Z, Panse JP, Yoon SS, de Latour RP, Nishimura J, Roth A
    • Organizer
      The American Society of Hematology 61st Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

URL: 

Published: 2019-04-18   Modified: 2021-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi