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MicroRNA transport from salivary mesenchyme regulates epithelial cytodifferentiation during organogenesis

Research Project

Project/Area Number 17K08520
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General anatomy (including histology/embryology)
Research InstitutionKitasato University

Principal Investigator

Hayashi Toru  北里大学, 医療衛生学部, 講師 (10454266)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords顎下腺 / マイクロRNA / 分化 / 上皮間葉相互作用 / 脱メチル化 / TET / 唾液腺 / エピジェネティクス / 未分化
Outline of Final Research Achievements

Epithelial-mesenchymal interactions are required for normal development in organs. We reported that gene expression in epithelium was regulated by microRNAs that are enriched in exosomes from mesenchyme in fetal mouse submandibular gland (SMG). Thus, we hypothesized in this study that “the microRNA signals between tissues” regulate cytodifferentiation during SMG development. Analyses of gene and protein expression using both immunostainings and qPCR suggested that spatio-temporal patterns of enzymes required for cytodifferentiation were regulated in part by the microRNAs imported from the SMG mesenchyme.

Academic Significance and Societal Importance of the Research Achievements

器官発生のメカニズムの全貌は未だ明らかになっていません。異なる組織間での相互作用は、従来タンパク質にだけ着目されてきました。そのような中、私たちは短い核酸(マイクロRNA)が組織間相互作用を仲介することを明らかにしてきました。その研究結果を踏まえ、未熟な器官が機能的に成熟していく過程(分化と言います)に着目したところ、組織間マイクロRNA輸送が分化のタイミングを調節していることが示唆されました。器官再生などの研究分野に新たなアプローチを提供するものです。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2017

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

  • [Journal Article] Regulatory mechanisms of branching morphogenesis in mouse submandibular gland rudiments2018

    • Author(s)
      Masanori Kashimata and Toru Hayashi
    • Journal Title

      Japanese Dental Science Review

      Volume: 54 Issue: 1 Pages: 2-7

    • DOI

      10.1016/j.jdsr.2017.06.002

    • NAID

      50013109044

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Exosomal microRNA communication between tissues during organogenesis2017

    • Author(s)
      Toru Hayashi and Matthew P. Hoffman
    • Journal Title

      RNA Biology

      Volume: 14 Issue: 12 Pages: 1683-1689

    • DOI

      10.1080/15476286.2017.1361098

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 胎仔マウス顎下腺におけるマイクロRNAを介した機能的分化制御機構2019

    • Author(s)
      林徹、門谷裕一
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 胎仔マウス顎下腺の脱メチル化シトシンと脱メチル化酵素の発現解析2019

    • Author(s)
      林徹、門谷裕一
    • Organizer
      第124回日本解剖学会総会・学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] 胎仔マウス顎下腺の発生における脱メチル化制御機構2018

    • Author(s)
      林徹
    • Organizer
      第123回日本解剖学会総会・学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 胎仔マウス顎下腺の発生における脱メチル化制御機構2017

    • Author(s)
      林徹
    • Organizer
      2017年度生命科学系学会合同年次大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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