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A Bach2-Cebp gene regulatory network for the commitment of multipotent hematopoietic progenitors

Research Project

Project/Area Number 15K18998
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field General medical chemistry
Research InstitutionTohoku University

Principal Investigator

Itoh-Nakadai Ari  東北大学, 加齢医学研究所, 助教 (90749772)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords血球分化 / 転写因子 / 遺伝子発現制御 / コミットメント / Bach2 / 造血多能性前駆細胞 / 造血幹細胞 / 前駆細胞
Outline of Final Research Achievements

Hematopoietic stem cells and multipotent progenitors (MPPs) commitment can be tuned in response to an infection so that their differentiation is biased toward myeloid cells. Here we find that Bach2, which inhibits myeloid differentiation in common lymphoid progenitors, represses a cohort of myeloid genes and activates those linked to lymphoid function. Bach2 repressed both Cebpb and its target Csf1r, encoding C/EBPβ and macrophage colony-stimulating factor receptor (M-CSFr), respectively, whereas C/EBPβ repressed Bach2 and activated Csf1r. Bach2 and C/EBPβ further bound to overlapping regulatory regions at their myeloid target genes.Lipopolysaccharide reduced the expression of Bach2, resulting in enhanced myeloid differentiation. The Bach2-C/EBPβ GRN pathway thus tunes MPP commitment to myeloid and lymphoid lineages under both normal conditions and after infection.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (4 results)

All 2017 2016 2015

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

  • [Journal Article] A Bach2-Cebp gene regulatory network for the commitment of multipotent hematopoietic progenitors.2017

    • Author(s)
      Itoh-Nakadai, A., Matsumoto, M., Kato, H., Sasaki, J., Uehara, Y., Sato, Y., Ebina-Shibuya, R., Morooka, M., Funayama, R., Nakayama, K., Ochiai, K., Muto, A. and Igarashi, K.
    • Journal Title

      Cell Reports

      Volume: 18 Issue: 10 Pages: 2401-2414

    • DOI

      10.1016/j.celrep.2017.02.029

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Orchestration of B lymphoid cells and their inner myeloid by Bach2016

    • Author(s)
      Kazuhiko Igarashi, Ari Itoh-Nakadai
    • Journal Title

      Current Opinion Immunology

      Volume: 39 Pages: 136-142

    • DOI

      10.1016/j.coi.2016.01.012

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Bach2 represses myeloid programs to promote lymphoid progenitor development under both the steady state and infection2015

    • Author(s)
      Ari Itoh-Nakadai, Kazuhiko Igarashi
    • Organizer
      第44回日本免疫学会総会
    • Place of Presentation
      札幌コンベンションセンター(北海道・札幌)
    • Year and Date
      2015-11-18
    • Related Report
      2015 Research-status Report
  • [Presentation] Bach2 represses myeloid programs to promote lymphoid progenitor development under both the steady state and infection2015

    • Author(s)
      Ari Itoh-Nakadai
    • Organizer
      The 3rd Symposium of International Immunological Memory and Vaccine Forum
    • Place of Presentation
      ベルリン日独センター(ドイツ・ベルリン)
    • Year and Date
      2015-10-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2018-03-22  

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