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

Activation of dental pulp stem cells by neurotransmission signals and intentional blood flow regulation in traumatic teeth

Research Project

Project/Area Number 20K10224
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57070:Developmental dentistry-related
Research InstitutionNiigata University

Principal Investigator

OHSHIMA KUNIKO  新潟大学, 医歯学総合病院, 講師 (80213693)

Co-Investigator(Kenkyū-buntansha) 大島 勇人  新潟大学, 医歯学系, 教授 (70251824)
早崎 治明  新潟大学, 医歯学系, 教授 (60238095)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords歯髄幹細胞 / 歯髄再生 / 再植 / アドレナリン受容体作動薬 / GFP / 組織幹細胞 / 歯の再植
Outline of Research at the Start

我々はこれまでの研究で、再植後の歯髄内の早期の血行回復が歯髄静的幹細胞の活性化に必要であることを明らかにしてきた。また、齧歯類を用いた最新の研究で、β3アドレナリン受容体作動薬の全身投与が歯髄静的幹細胞賦活化による切歯成長促進を起こすことが示されたことから、今回我々は外傷歯への同作動薬応用の可能性に着目した。
本課題は①歯の再植時の髄床底部への意図的穿孔形成が早期の血行回復による歯髄治癒促進に寄与するか、②再植歯のβ3アドレナリン受容体作動薬溶液への浸漬が歯髄静的幹細胞賦活化に寄与するかを検証し、外傷歯における人為的血流調節と神経伝達シグナル調節による歯髄静的幹細胞活性化機構を解明する。

Outline of Final Research Achievements

Avulsion is frequent in pediatric dental trauma, and pulp regeneration isn't expected in mature teeth after tooth replantation. In this study, we developed a new technique to induce pulp regeneration after replantation by intentionally perforating the floor of the pulp chamber.
Maxillary first molars of three-week-old mice were extracted, and the floor of the pulp chamber was perforated with a carbide bur before replantation. The results suggest that early establishment of revascularization via the perforation reduced the number of apoptotic cells in the pulp chamber, and that significantly more quiescent stem cells survived in the pulp tissue to actively proliferate. The positive rate of Nestin was significantly increased and the formation of third dentin in the crown was also increased. Thus, the results suggest that intentional perforation of the pulp floor promotes pulpal healing by early restoration of blood circulation and activation of pulpal quiescent stem cells.

Academic Significance and Societal Importance of the Research Achievements

小児は頭部が相対的に大きく,転倒に対する防御能力が低いため,前歯部外傷の頻度が高いが,骨の柔軟性が高いため,成人に多い歯根破折より完全脱臼の割合が高い.完全脱臼の新鮮例には再植が推奨され,根未完成歯では再植後,歯髄再生が期待できるが,歯根完成歯では歯髄再生は期待できない。また、歯の再植後に歯根吸収やアンキローシスを惹起させないためにも、歯髄内に早期に象牙質形成を誘導することが重要であることから、本研究は、小児の歯の完全脱臼後の再植を成功に導く新規治療法へと発展する可能性が高く、人為的に細胞・基質間相互作用を調節することにより歯髄再生を促す歯髄再生療法の基盤構築にも繋がることが期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (22 results)

All 2023 2022 2021 2020 2019

All Journal Article (13 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 13 results,  Open Access: 13 results) Presentation (9 results)

  • [Journal Article] Early revascularization activates quiescent dental pulp stem cells following tooth replantation in mice2023

    • Author(s)
      Sano Hiroto、Nakakura-Ohshima Kuniko、Quispe-Salcedo Angela、Okada Yasuo、Sato Takuichi、Ohshima Hayato
    • Journal Title

      Regenerative Therapy

      Volume: 24 Pages: 582-591

    • DOI

      10.1016/j.reth.2023.10.004

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The effect of intentionally perforating the floor of the pulp chamber on pulpal healing after tooth replantation in mice.2023

    • Author(s)
      Sano H, Nakakura-Ohshima K, Okada Y, Sato T, Ohshima H
    • Journal Title

      J Oral Biosci

      Volume: 65 Issue: 1 Pages: 31-39

    • DOI

      10.1016/j.job.2023.01.007

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] SVCT2-GLUT1-mediated ascorbic acid transport pathway in rat dental pulp and its effects during wound healing2023

    • Author(s)
      Ohkura Naoto、Yoshiba Kunihiko、Yoshiba Nagako、Edanami Naoki、Ohshima Hayato、Takenaka Shoji、Noiri Yuichiro
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 1251-1251

    • DOI

      10.1038/s41598-023-28197-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prostaglandin E2-Transporting Pathway and Its Roles via EP2/EP4 in Cultured Human Dental Pulp2023

    • Author(s)
      Ohkura Naoto、Yoshiba Kunihiko、Yoshiba Nagako、Oda Yohei、Edanami Naoki、Ohshima Hayato、Takenaka Shoji、Okiji Takashi、Noiri Yuichiro
    • Journal Title

      Journal of Endodontics

      Volume: 49 Issue: 4 Pages: 410-418

    • DOI

      10.1016/j.joen.2023.01.009

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of osteopontin in the process of pulpal healing following tooth replantation in mice.2022

    • Author(s)
      Suzuki-Barrera K, Makishi S, Nakatomi M, Saito K, Ida-Yonemochi H, Ohshima H
    • Journal Title

      Regen Ther

      Volume: 21 Pages: 460-468

    • DOI

      10.1016/j.reth.2022.09.011

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The role of angiogenesis and pulpal healing in tooth replantation and allograft transplantation2021

    • Author(s)
      Lee Dong-Joon、Lee Seung-Jun、Lee Min-Jung、Kim Eun-Jung、Ohshima Hayato、Jung Han-Sung
    • Journal Title

      Biochemistry and Biophysics Reports

      Volume: 26 Pages: 100945-100945

    • DOI

      10.1016/j.bbrep.2021.100945

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The effects of reducing the root length by apicoectomy on dental pulp regeneration following tooth replantation in mice.2021

    • Author(s)
      Nakakura-Ohshima K, Quispe-Salcedo A, Sano H, Hayasaki H, Ohshima H
    • Journal Title

      Dent Traumatol

      Volume: 11 Issue: 5 Pages: 677-690

    • DOI

      10.1111/edt.12679

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Sonic Hedgehog-Patched-Gli Signaling Pathway Maintains Dental Epithelial and Pulp Stem/Progenitor Cells and Regulates the Function of Odontoblasts2021

    • Author(s)
      Ishikawa Yuko、Ida-Yonemochi Hiroko、Saito Kotaro、Nakatomi Mitsushiro、Ohshima Hayato
    • Journal Title

      Frontiers in Dental Medicine

      Volume: 2 Pages: 651334-651334

    • DOI

      10.3389/fdmed.2021.651334

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dentin Matrix Protein 1 Compensates for Lack of Osteopontin in Regulating Odontoblastlike Cell Differentiation after Tooth Injury in Mice2020

    • Author(s)
      Saito Kotaro、Nakatomi Mitsushiro、Ohshima Hayato
    • Journal Title

      Journal of Endodontics

      Volume: 46 Issue: 1 Pages: 89-96

    • DOI

      10.1016/j.joen.2019.10.002

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Glucose Transporter 2 and 4 Are Involved in Glucose Supply during Pulpal Wound Healing after Pulpotomy with Mineral Trioxide Aggregate in Rat Molars2020

    • Author(s)
      Tohma Aiko、Ohkura Naoto、Yoshiba Kunihiko、Takeuchi Ryosuke、Yoshiba Nagako、Edanami Naoki、Shirakashi Mari、Ibn Belal Razi Saifullah、Ohshima Hayato、Noiri Yuichiro
    • Journal Title

      Journal of Endodontics

      Volume: 46 Issue: 1 Pages: 81-88

    • DOI

      10.1016/j.joen.2019.10.003

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immunohistochemistry and gene expression of GLUT1, RUNX2 and MTOR in reparative dentinogenesis2020

    • Author(s)
      Takeuchi Ryosuke、Ohkura Naoto、Yoshiba Kunihiko、Tohma Aiko、Yoshiba Nagako、Edanami Naoki、Shirakashi Mari、Belal Razi Saifullah Ibn、Ohshima Hayato、Noiri Yuichiro
    • Journal Title

      Oral Diseases

      Volume: 26 Issue: 2 Pages: 341-349

    • DOI

      10.1111/odi.13230

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Responses of oral-microflora-exposed dental pulp to capping with a triple antibiotic paste or calcium hydroxide cement in mouse molars2020

    • Author(s)
      Quispe-Salcedo A, Sato T, Matsuyama J, Ida-Yonemochi H, Ohshima H
    • Journal Title

      Regen Ther

      Volume: 15 Pages: 216-225

    • DOI

      10.1016/j.reth.2020.10.001

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reduced enamel epithelium-derived cell niche in the junctional epithelium are maintained for a long time in mice2019

    • Author(s)
      Soda M, Saito K, Ida-Yonemochi H, Nakakura-Ohshima K, Kenmotsu S, Ohshima H
    • Journal Title

      J Periodontol

      Volume: Sep 9 Issue: 6 Pages: 819-827

    • DOI

      10.1002/jper.19-0269

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] マウス臼歯再植後の早期血行回復は歯髄静的幹細胞を賦活化する2023

    • Author(s)
      佐野拓人、大島邦子、Angela Quispe-Salcedo、岡田康男、佐藤拓一、大島勇人
    • Organizer
      第65回歯科基礎医学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Effectiveness of Leukocyte- and Platelet-Rich Plasma (L-PRP) on the pulpal healing process following tooth replantation in mice2023

    • Author(s)
      Angela Quispe-Salcedo, Mauricio Zapata-Sifuentes, Taisuke Watanabe, Tomoyuki Kawase, Hayato Ohshima
    • Organizer
      65回歯科基礎医学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] The interaction between osteopontin and stem/progenitor cells determines the pulpal healing following tooth replantation in mice.2022

    • Author(s)
      Angela Quispe-Salcedo,Kiyoko Suzuki,中富満城,依田浩子,大島勇人
    • Organizer
      第64回歯科基礎医学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 髄床底部への意図的穿孔形成がマウ ス歯の再植後の歯髄静的幹細胞動態に及ぼす影響.2022

    • Author(s)
      佐野拓人,大島邦子,岡田康男,佐藤拓一,大島勇人
    • Organizer
      第64回歯科基礎医学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] OPN is necessary for proper inflammation and revascularization to deposit dentin in replanted teeth.2022

    • Author(s)
      Suzuki K, Makishi S, Nakatomi M, Saito K, Ida-Yonemochi H, Ohshima H
    • Organizer
      第21回日本再生医療学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 髄床底部への意図的穿孔形成がマウス臼歯再植後の歯髄治癒過程に及ぼす 影響2021

    • Author(s)
      佐野拓人,大島邦子,岡田康男,佐藤拓一,大島 勇人
    • Organizer
      第63回歯科基礎医学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Osteopontin and root development stage are essential for pulpal healing following tooth replantation.2021

    • Author(s)
      Suzuki Kiyoko,真喜志佐奈子,中富満城,斎藤浩太郎,依田浩子,大島勇人
    • Organizer
      第20回日本再生医療学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] マウス歯髄組織の発生・再生治癒過程におけるコンドロイチン硫酸の機能発現.2020

    • Author(s)
      依田 浩子,大島 勇人
    • Organizer
      第62回歯科基礎医学会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Role of osteopontin in the process of pulpal healing following tooth replantation in mice.2020

    • Author(s)
      Suzuki K,Makishi S,Nakatomi M,Saito K,Ida-Yonemochi H,Ohshima H
    • Organizer
      第62回歯科基礎医学会学術大会
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi