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2017 Fiscal Year Annual Research Report

Development of novel diagnostics for hematological malignancy on basis of the exosome analysis

Research Project

Project/Area Number 15H04303
Research InstitutionTokyo Medical University

Principal Investigator

大屋敷 一馬  東京医科大学, 医学部, 教授 (20201387)

Co-Investigator(Kenkyū-buntansha) 大屋敷 純子  東京医科大学, 医学部, 教授 (20191950)
梅津 知宏  東京医科大学, 医学部, 講師 (40385547)
Project Period (FY) 2015-04-01 – 2018-03-31
KeywordsmiRNA / エクソソーム / 骨髄異形成症候群 / 骨髄間質細胞
Outline of Annual Research Achievements

本研究では、造血器腫瘍における骨髄内での腫瘍細胞と周辺細胞である骨髄間質細胞との細胞間コミュニケーション機構の解明を目的として、骨髄異形成症候群(MDS)患者由来骨髄間質細胞より分泌されるエクソソームの疾患特異的miRNAの同定と、患者末梢血中のcell free分画より単離したエクソソームの疾患特異的miRNAの同定を行う。
初年度(H27年度)では骨髄内で腫瘍細胞の発育・進展に関与している骨髄間質細胞の培養系および骨髄間質細胞由来エクソソームの解析モデル系を構築した。次年度(H28年度)ではtraining cohortとして文書(IRB承認No. 2648)にて同意を得たMDS患者(low-risk群: 10例、high-risk群:10例)由来の骨髄間質細胞が放出するエクソソームを回収し、TaqMan miRNA arrayを用いてexosomal miRNAの半網羅的解析を行った。その結果、miR-101を含むhigh-risk群の骨髄間質細胞で特異的に発現が変化するexosomal miRNA群を見出した。
最終年度では、これらの候補miRNAに対してmiRTarBaseを用いたバイオインフォマティクス解析によって標的遺伝子を探索し、miR-101がEZH2DNMT3Aなどのエピジェネティク制御因子をターゲットとしていることを見出した。さらに、MDS患者血漿からエクソソーム分画を単離してmiR-101について個別PCRを用いて解析したところ、骨髄間質細胞由来エクソソームに内包されるmiRNAの発現パターンとは相反する発現パターンを示した。さらに、in vitroモデル系を確立し、miR-101の強制発現によるエクソソームを介したmiRNAの移行とそのメカニズムの解明を行った。その結果、患者由来骨髄間質細胞由来のmiR-101がエクソソームを介して腫瘍細胞へと移入し、その腫瘍細胞の増殖を促進していることが示唆された。

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

  • Research Products

    (17 results)

All 2018 2017

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 8 results) Book (1 results)

  • [Journal Article] Extracellular vesicle (EV)- mediated cell-cell communication in hematologic neoplasms2018

    • Author(s)
      Ohyashiki JH, Umezu T, Ohyashiki K
    • Journal Title

      Philosophical Transactions of the Royal Society B: Biological Sciences

      Volume: 373 Pages: 1737

    • DOI

      10.1098/rstb.2016.0484

    • Peer Reviewed
  • [Journal Article] Hidden FLT3-D835Y clone in FLT3-ITD-positive acute myeloid leukemia that evolved into very late relapse with T-lymphoblastic leukemia2017

    • Author(s)
      Katagiri S, Umezu T, Asano M, Akahane D, Azuma K, Makishima H, Yoshida K, Watatani Y, Chiba K, Miyano S, Ogawa S, Ohyashiki JH, Ohyashiki K
    • Journal Title

      Leukemia and Lymphoma

      Volume: 3 Pages: 1-4

    • DOI

      10.1080/10428194.2017. 1382696

    • Peer Reviewed
  • [Journal Article] Up-regulated exosomal miRNA-140-3p in CML patients with musculoskeletal pain associated with discontinuation of tyrosine kinase inhibitors2017

    • Author(s)
      Asano M, Umezu T, Katagiri S, Kobayashi C, Tauchi T, Gotoh M, Ando K, Okabe S, Ohyashiki JH, Ohyashiki K
    • Journal Title

      International Journal of Hematology

      Volume: 105(4) Pages: 419-422

    • DOI

      10.1007/s12185-017-2199-z

    • Peer Reviewed
  • [Journal Article] A Phase 1/2 study of WT1 peptide cancer vaccine WT4869 in patients with myelodysplastic syndromes2017

    • Author(s)
      Ueda T, Ogura M, Miyakoshi S, Suzuki T, Heike Y, Tagashira S, Tsuchiya S, Ohyashiki K
    • Journal Title

      Cancer Science

      Volume: 108(12) Pages: 2445-2453

    • DOI

      10.1111/cas.13409

    • Peer Reviewed
  • [Journal Article] Replenishing exosomes from older bone marrow stromal cells with miR-340 inhibits multiple myeloma-related angiogenesis2017

    • Author(s)
      Umezu T, Imanishi S, Azuma K, Kobayashi C, Yoshizawa S, Ohyashiki K, Ohyashiki JH
    • Journal Title

      Blood Advances

      Volume: 1(13) Pages: 812-823

    • DOI

      10.1182/bloodadvances.2016003251

    • Peer Reviewed / Open Access
  • [Journal Article] Teriflunomide restores 5-azacytidine sensitivity via activation of pyrimidine salvage in 5-azacytidine-resistant leukemia cells2017

    • Author(s)
      Imanishi S, Takahashi R, Katagiri S, Kobayashi C, Umezu T, Ohyashiki K, Ohyashiki JH
    • Journal Title

      Oncotarget

      Volume: 8(41) Pages: 69906-69915

    • DOI

      10.18632/oncotarget.19436

    • Peer Reviewed / Open Access
  • [Journal Article] Genetic alterations are uncommon in bone marrow mesenchymal stromal cells derived from myeloid malignancies2017

    • Author(s)
      Azuma K, Umezu T, Imanishi S, Asano M, Yoshizawa S, Katagiri S, Ohyashiki K, Ohyashiki JH
    • Journal Title

      Leukemia Research

      Volume: 62 Pages: 23-28

    • DOI

      10.1016/j.leukres.2017.09.008

    • Peer Reviewed
  • [Presentation] Combining effects of the SMO inhibitor and JAK1 inhibitor in MDS-derived induced potent stem cells (iPS)2017

    • Author(s)
      Tauchi T, Okabe S, Katagiri S, Tanaka Y, Ohyashiki K
    • Organizer
      22th European Hematology Association
    • Int'l Joint Research
  • [Presentation] miRMA profiling of circulating extracellular vesicles in CML patients with musculoskeletal pain associated with discontinuation of tyrosine kinase inhibitors2017

    • Author(s)
      Ohyashiki K, Asano M, Umezu T, Katagiri S, Kobayashi C, Tauchi T, Gotoh M, Ando K, Okabe S, Ohyashiki K
    • Organizer
      22th European Hematology Association
    • Int'l Joint Research
  • [Presentation] Inhibition of extracellular vesicle secretion induces apoptosis of bone marrow stromal cells: Towards soil-targeted therapy in multiple myeloma2017

    • Author(s)
      Umezu T, Imanishi S, Yoshizawa S, Ohyashiki K, Ohyashiki JH
    • Organizer
      22th European Hematology Association
    • Int'l Joint Research
  • [Presentation] Extracellular vesicles (EVs) released by bone marrow stromal cells show a distinct miRNA profiling in high-risk MDS patients2017

    • Author(s)
      Ohyashiki K, Saitoh Y, Imanishi S, Umezu T, Yoshizawa S, Asano M, Fujimoto H, Akahane D, Kobayashi C, Ohyashiki JH
    • Organizer
      The 14th International Symposium on Myelodysplastic Syndromes
    • Int'l Joint Research
  • [Presentation] Teriflunomide restores 5-azacytidine sensitivity via activation of pyrimidine salvage in 5-azacytidine-resistant leukemia cells2017

    • Author(s)
      Imanishi S, Takahashi R, Katagiri S, Umezu T, Kobayashi C, Ohyashiki K, Ohyashiki JH
    • Organizer
      The 14th International Symposium on Myelodysplastic Syndromes
    • Int'l Joint Research
  • [Presentation] Molecular signatures that predict response to azacitidine treatment for myelodysplastic syndromes2017

    • Author(s)
      Nannya Y, Takeda J, Sato S, Shiozawa Y, Shiraishi Y, Kataoka K, Chiba K, Tanaka H, Chiba S, Asou N, Kiyoi H, Imai K, Hirase C, Dobashi N, Kiguchi T, Nakao S, Ohyashiki K, Miyazaki Y, Naoe T, Makishima H, Miyano S, Kenichi Yoshida K, Ogawa S*
    • Organizer
      59th ASH annual meeting and exposition
    • Int'l Joint Research
  • [Presentation] Combining effects of the SMO inhibitor and BCL-2 inhibitor in MDS-derived induced potent stem cells (iPS)2017

    • Author(s)
      Tauchi T, Okabe S, Katagiri S, Tanaka Y, Ohyashiki K
    • Organizer
      59th ASH annual meeting and exposition
    • Int'l Joint Research
  • [Presentation] RUNX2 super enhancer promotes the development of blastic plasmacytoid dendritic cell neoplasm. 21th RUNX meeting2017

    • Author(s)
      Sashida G, Kubota S, Tokunaga K, Oshima M, Umezu T, Kanai A, Tan KT, Yang H, Iwanaga E, Asou N, Maeda T, Iwama A, Ohyashiki K, Osato M
    • Organizer
      21th RUNX meeting
    • Int'l Joint Research
  • [Presentation] Inhibition of extracellular vesicle secretion induces apoptosis of bone marrow stroma cells2017

    • Author(s)
      Umezu T, Imanishi S, Yoshizawa Sm Ohyashiki K, Ohyashiki JH
    • Organizer
      第76回日本癌学会学術総会
  • [Book] 貧血学―最新の診断・治療動向―:MDS診療ガイドラインにおける治療戦略・概論2017

    • Author(s)
      大屋敷一馬
    • Total Pages
      641
    • Publisher
      日本臨牀社
    • ISBN
      00471852

URL: 

Published: 2018-12-17  

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