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Enrichment and functional analysis of human deciduous dental pulp stem cells for tooth regeneration

Research Project

Project/Area Number 21K10165
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 InstitutionKagoshima University

Principal Investigator

Inada Emi  鹿児島大学, 医歯学域鹿児島大学病院, 講師 (30448568)

Co-Investigator(Kenkyū-buntansha) 佐藤 正宏  国立研究開発法人国立成育医療研究センター, ゲノム医療研究部, 共同研究員 (30287099)
齊藤 一誠  朝日大学, 歯学部, 教授 (90404540)
野口 洋文  琉球大学, 医学(系)研究科(研究院), 教授 (50378733)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords遺伝子工学的手法 / アルカリホスファターゼ / ヒト乳歯歯髄細胞 / 乳歯歯髄幹細胞 / 細胞工学的手法 / 多能性幹細胞
Outline of Research at the Start

ヒト乳歯歯髄細胞(HDDPC)は高い増殖能と多分化能を有することが報告されており、組織再生のための有望な細胞ソースと考えられるが、非幹細胞が混在する細胞集団であるため、この中から幹細胞を純化する必要がある。申請者らの過去の研究から「アルカリホスファターゼ高活性かつOCT3/4陽性の細胞(以下、ALP(+)/OCT3/4(+))は多能性幹細胞になり得る」と判断された。今回、細胞工学的手法によるHDDPC由来ALP(+)/OCT3/4(+)安定株樹立を目指す。同細胞の特性を解析する一方、マウス胎仔の歯槽堤部由来細胞との共培養による組織再構成実験を行い、多能性幹細胞の特性の有無を明らかにする。

Outline of Final Research Achievements

Human deciduous dental pulp cells (HDDPC) were prepared as single cells by a limiting dilution method, and the expression of stem cell-specific genes was examined by RT-PCR. The results showed that the expression patterns of stem cell-specific genes such as alkaline phosphatase (ALP) differed among the cell clones tested. Furthermore, when we performed repeated gene transfer of Yamanaka’s factors into HDDPC to generate stem cell-like cells, just prior to iPS cell formation, there observed the presence of ALP-positive cells after the fourth gene transfer. This suggests that HDDPC can be induced to generate stem cell-like cells.
On the other hand, we successfully obtained a cell mass with 3-D structure comprised by highly differentiated cells, when naive iPS cells are induced to form embryoid bodies (EBs) and these EBs were subjected to organ culture system which had been developed in-house.

Academic Significance and Societal Importance of the Research Achievements

再生医療では、自己再生能と分化能を有する幹細胞が重要な役割を果たす。脱落乳歯や智歯、矯正治療のために便宜的に抜歯される永久歯から採取される歯髄細胞は、組織再生のための有望な細胞ソースと考えられている。本研究により、ALP(+)HDDPCが多能性幹細胞の特性を有し、それが歯形成に関与する能力が歯組織再構成実験から証明されれば、歯学分野、その他の基礎研究分野への波及効果は大いに期待できる。

Report

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

    (14 results)

All 2023 2022 2021 2020

All Journal Article (11 results) (of which Peer Reviewed: 11 results,  Open Access: 10 results) Presentation (3 results)

  • [Journal Article] Recent Genome-Editing Approaches toward Post-Implanted Fetuses in Mice2023

    • Author(s)
      Nakamura Shingo、Inada Emi、Saitoh Issei、Sato Masahiro
    • Journal Title

      BioTech

      Volume: 12 Issue: 2 Pages: 37-37

    • DOI

      10.3390/biotech12020037

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recent Advances in In Vivo Somatic Cell Gene Modification in Newborn Pups2023

    • Author(s)
      Nakamura Shingo、Morohoshi Kazunori、Inada Emi、Sato Yoko、Watanabe Satoshi、Saitoh Issei、Sato Masahiro
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 20 Pages: 15301-15301

    • DOI

      10.3390/ijms242015301

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recent Advances in the Production of Genome-Edited Animals Using <i>i</i>-GONAD, a Novel <i>in vivo</i> Genome Editing System, and Its Possible Use for the Study of Female Reproductive Systems2023

    • Author(s)
      Sato Masahiro、Morohoshi Kazunori、Ohtsuka Masato、Takabayashi Shuji、Inada Emi、Saitoh Issei、Watanabe Satoshi、Nakamura Shingo
    • Journal Title

      OBM Genetics

      Volume: 07 Issue: 04 Pages: 1-30

    • DOI

      10.21926/obm.genet.2304207

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recent advances in in vivo genome editing targeting mammalian preimplantation embryos.2023

    • Author(s)
      Sato M、Ohtsuka M、Inada E、Nakamura S、Saitoh I、Takabayashi S
    • Journal Title

      InTechOpen

      Volume: CRISPR Technology Pages: 1-42

    • DOI

      10.5772/intechopen.106873

    • ISBN
      9781803568157, 9781803568164
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Role of Genetically Modified Human Feeder Cells in Maintaining the Integrity of Primary Cultured Human Deciduous Dental Pulp Cells.2022

    • Author(s)
      Ibano N、Inada E、Otake S、Kiyokawa Y、Sakata K、Sato M、Kubota N、Noguchi H、Iwase Y、Murakami T、Sawami T、Kakihara Y、Maeda T、Terunuma M、Terao Y、Saitoh I
    • Journal Title

      Journal of Clinical Medicine

      Volume: 11 Issue: 20 Pages: 6087-6087

    • DOI

      10.3390/jcm11206087

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electroporation-Based Non-Viral Gene Delivery to Adipose Tissue in Mice2022

    • Author(s)
      Masahiro Sato、Issei Saitoh、Yuki Kiyokawa、Eri Akasaka、Shingo Nakamura、Satoshi Watanabe、Emi Inada
    • Journal Title

      OBM Genetics

      Volume: 6 Issue: 2 Pages: 18-18

    • DOI

      10.21926/obm.genet.2202151

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cytoplasmic microinjection of piggyBac transposase mRNA and transposon vectors for efficient in vitro production of transgenic porcine parthenotes.2022

    • Author(s)
      Miyagasako R、Hansol J、Watanabe S、Miyoshi K、Inada E、Sato M
    • Journal Title

      OBM Genetics

      Volume: 06 Issue: 03 Pages: 1-20

    • DOI

      10.21926/obm.genet.2203166

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] RNA analysis based on a small number of manually isolated fixed cells (RNA-snMIFxC) to profile stem cells from human deciduous tooth-derived dental pulp cells2021

    • Author(s)
      Inada E, Saitoh I, Kubota N, Iwase Y, Kiyokawa Y, Noguchi H, Yamasaki Y, Sato M
    • Journal Title

      Biological Procedure Online

      Volume: 23 Issue: 1 Pages: 12-12

    • DOI

      10.1186/s12575-021-00149-5

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Induced Tissue-Specific Stem Cells (iTSCs): Their Generation and Possible Use in Regenerative Medicine2021

    • Author(s)
      Saitoh Issei、Sato Masahiro、Kiyokawa Yuki、Inada Emi、Iwase Yoko、Ibano Natsumi、Noguchi Hirofumi
    • Journal Title

      Pharmaceutics

      Volume: 13 Issue: 6 Pages: 780-780

    • DOI

      10.3390/pharmaceutics13060780

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tissue-nonspecific alkaline phosphatase, a possible mediator of cell maturation: Towards a new paradigm2021

    • Author(s)
      Sato M, Saitoh I, Kiyokawa, Iwase Y, Kubota N, Ibano N, Noguchi H, Yamasaki Y, Inada E
    • Journal Title

      Cells

      Volume: 10 Issue: 12 Pages: 3338-3338

    • DOI

      10.3390/cells10123338

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a novel, pipette tip-aided cell cloning method for effective isolation of genome-edited porcine cell2020

    • Author(s)
      Sato M, Saitoh I, Akasaka E, Inada E
    • Journal Title

      OBM Genetics

      Volume: 5 Issue: 1 Pages: 16-16

    • DOI

      10.21926/obm.genet.2101126

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 新規器官培養系の構築 歯系細胞由来3D構築体作製に向けた予備実験2023

    • Author(s)
      稲田絵美, 齊藤一誠, 清川裕貴, 井葉野夏実, 山崎要一, 佐藤正宏
    • Organizer
      第61回日本小児歯科学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 乳歯歯髄細胞への高効率な遺伝子導入条件の検討と多機能feeder細胞の樹立2023

    • Author(s)
      井葉野夏実, 清川裕貴, 坂田健輔, 稲田絵美, 大竹慎司, 村上智哉, 澤味 規, 岩瀬陽子, 齊藤 一誠
    • Organizer
      第61回日本小児歯科学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 糖尿病患児由来乳歯歯髄細胞を用いた膵臓特異的幹細胞(T1D-iTSC-P)の樹立2022

    • Author(s)
      清川裕貴, 稲田絵美, 井葉野夏実, 安村真一, 岡野 哲, 岩瀬陽子, 早崎治明, 齊藤一誠
    • Organizer
      第60回日本小児歯科学会
    • Related Report
      2022 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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