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Basic study on epithelial-mesenchymal transition leading to intractable fibrosis based on the somatic stem cells

Research Project

Project/Area Number 19H03130
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionOsaka Metropolitan University (2022)
Osaka Prefecture University (2019-2021)

Principal Investigator

Yamate Jyoji  大阪公立大学, 大学院獣医学研究科, 客員研究員 (50150115)

Co-Investigator(Kenkyū-buntansha) 桑村 充  大阪公立大学, 大学院獣医学研究科, 教授 (20244668)
井澤 武史  大阪公立大学, 大学院獣医学研究科, 准教授 (20580369)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2022: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords線維化 / 筋線維芽細胞 / 臓器横断的 / 上皮‐間葉転換 / 体性幹細胞 / 幹細胞認識抗体 / ラット / 難治性線維化 / マクロファージ / 線維化の軽減実験 / 上皮間葉転換 / 臓器横断的解析
Outline of Research at the Start

腎線維化において、傷害後の再生上皮が間葉系細胞、特に膠原線維を産生する筋線維芽細胞に転換(上皮‐間葉転換:EMT)し、線維化の増悪に係ることが知られている。このEMT には上皮系と間葉系の双方に分化し得る体性幹細胞が関与すると考えている。しかし、EMT 現象の全貌は解明されていない。ラットの肝、腎、膵、皮膚、腸、心筋に線維化病変を作出し、異常な修復機転であるEMT の病態を臓器横断的に比較解析し、さらに体性幹細胞を認識する新規抗体A3を用い胎子発生過程との関連でEMT が係る線維化の増悪メカニズムを追究する。この研究は「EMT 幹細胞学説」の構築に繋がり、線維化の治療法探索に資する。

Outline of Final Research Achievements

A novel antibody A3 recognized somatic stem cells capable of differentiating into both epithelial and mesenchymal cells. Using various antibodies in addition to A3, fibrotic lesions were induced in various organs of rats, and the characteristics of myofibroblasts were investigated based on the somatic stem cells. Along with undifferentiated mesenchymal cells and pericytes, myofibroblasts were generated from hepatic stellate cells, pancreatic stellate cells, and hair follicle connective tissue sheath cells as the organ-specific original cells. Epithelial-mesenchymal transition in injured renal tubules was involved in myofibroblast formation. These myofibroblast progenitors may be partly in the stem cell lineage. Macrophages involved in myofibroblast formation were induced in relationship to DAMPs and autophagy. This study contributes to the development of "stem cell pathology".

Academic Significance and Societal Importance of the Research Achievements

線維化は組織傷害後の修復機転である。線維化には膠原線維を産生する筋線維芽細胞が係る。筋線維芽細胞の特性と起源について体性幹細胞を起点に臓器横断的に追究した。特に、腎線維化では、傷害尿細管の遡及現象としての異常分化である上皮-間葉転換を介し筋線維芽細胞が形成される。また、ラットの体性幹細胞を認識する新たな抗体を作製し、その認識細胞の特性・分布を解析することで筋線維芽細胞の起源に新たな知見を加えた。また筋線維芽細胞の形成に係るマクロファージの誘導因子を障害関連分子パターン(DAMPs)とオートファジーとの係わりで検討した。この研究は「幹細胞病理学」の新たな構築と難治性線維化の治療法の探索に資する。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (29 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (18 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 12 results,  Open Access: 12 results) Presentation (9 results) (of which Invited: 4 results) Remarks (2 results)

  • [Journal Article] Possible cytoprotection of low dose lipopolysaccharide in rat thioacetamide-induced liver lesions, focusing on the analyses of hepatic macrophages and autophagy.2022

    • Author(s)
      Pervin M, Karim MR, Kuramochi M, Izawa T, Kuwamura M, Yamate J
    • Journal Title

      Toxicol Pathol.

      Volume: 50 Issue: 3 Pages: 353-365

    • DOI

      10.1177/01926233221076758

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 第2回 マクロファージ病理学;創傷治癒とマクロファージ2022

    • Author(s)
      山手丈至
    • Journal Title

      日生研たより

      Volume: 68 Pages: 11-18

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 第3回 マクロファージ病理学;マクロファージと肝毒性(その1)2022

    • Author(s)
      山手丈至
    • Journal Title

      日生研たより

      Volume: 68 Pages: 21-28

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 第3回 マクロファージ病理学;マクロファージと肝毒性(その2)2022

    • Author(s)
      山手丈至
    • Journal Title

      日生研たより

      Volume: 68 Pages: 37-45

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 第4回 マクロファージ病理学;マクロファージと腎線維化2022

    • Author(s)
      山手丈至
    • Journal Title

      日生研たより

      Volume: 68 Pages: 55-63

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 線維化の功と罪、そのメカニズムを探る2022

    • Author(s)
      山手丈至
    • Journal Title

      実験病理組織技術研究会誌

      Volume: 30 Pages: 1-12

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Properties of macrophages and lymphocytes appearing in rat renal fibrosis followed by repeated injection of cisplatin2021

    • Author(s)
      Matsuyama S, Pervin M, Nakagawa M, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 83 Issue: 9 Pages: 1435-1442

    • DOI

      10.1292/jvms.21-0341

    • NAID

      130008088057

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immunophenotypical characterization of M1/M2 macrophages and lymphocytes in cisplatin-induced rat progressive renal fibrosis.2021

    • Author(s)
      Nakagawa M, Karim MR, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Cells

      Volume: 10 Issue: 2 Pages: 257-257

    • DOI

      10.3390/cells10020257

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Appearance of heterogeneous macrophages during development of isoproterenol-induced rat myocardial fibrosis.2021

    • Author(s)
      Koga M, Karim MR, Kuramochi M, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Toxicol Pathol

      Volume: 49 Issue: 5 Pages: 1048-1061

    • DOI

      10.1177/0192623320982526

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Involvement of neutrophils in rat livers by low-dose thioacetamide administration2021

    • Author(s)
      Kuramochi M, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 83 Issue: 3 Pages: 390-396

    • DOI

      10.1292/jvms.20-0581

    • NAID

      130007996809

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] マクロファージ病理学 第1回:マクロファージの基礎知識2021

    • Author(s)
      山手丈至
    • Journal Title

      日生研たより

      Volume: 67 Pages: 51-56

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Acetaminophen-Induced Rat Hepatotoxicity Based on M1/M2-Macrophage Polarization, in Possible Relation to Damage-Associated Molecular Patterns and Autophagy2020

    • Author(s)
      Tsuji Y, Kuramochi M, Golbar HM, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Int J Mol Sci.

      Volume: 21 Issue: 23 Pages: 8998-8998

    • DOI

      10.3390/ijms21238998

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of dexamethasone on hepatic macrophages in normal livers and thioacetamide-induced acute liver lesions in rats2020

    • Author(s)
      Hada N, Kuramochi M, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Journal of Toxicologic Pathology

      Volume: 33 Issue: 4 Pages: 237-246

    • DOI

      10.1293/tox.2020-0016

    • NAID

      130007931392

    • ISSN
      0914-9198, 1881-915X
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Participation of Somatic Stem Cells, Labeled by a Unique Antibody (A3) Recognizing both N-glycan and Peptide, to Hair Follicle Cycle and Cutaneous Wound Healing in Rats.2020

    • Author(s)
      Katou-Ichikawa C, Nishina H, Tanaka M, Takenaka S, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Int J Mol Sci.

      Volume: 21 Issue: 11 Pages: 3806-3806

    • DOI

      10.3390/ijms21113806

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Participation of Somatic Stem Cells, Recognized by a Unique A3 Antibody, in Mucosal Epithelial Regeneration in Dextran Sulfate Sodium (DSS)-Induced Rat Colonic Lesions2020

    • Author(s)
      Nishina H, Katou-Ichikawa C, Kuramochi M, Izawa T, Kuwamura M, Yamate J
    • Journal Title

      Toxicol Pathol.

      Volume: 48 Issue: 4 Pages: 560-569

    • DOI

      10.1177/0192623320906817

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of Macrophages and Myofibroblasts Appearing in Dibutyltin Dichloride-Induced Rat Pancreatic Fibrosis.2020

    • Author(s)
      Hashimoto A, Karim MR, Kuramochi M, Izawa T, Kuwamura M, Yamate J
    • Journal Title

      Toxicol Pathol.

      Volume: 48 Issue: 3 Pages: 509-523

    • DOI

      10.1177/0192623319893310

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immunohistochemical characterization of myofibroblasts appearing in isoproterenol-induced rat myocardial fibrosis2019

    • Author(s)
      Koga M, Kuramochi M, Karim MR, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 81 Issue: 1 Pages: 127-133

    • DOI

      10.1292/jvms.18-0599

    • NAID

      130007556803

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The localization and distribution of cells labeled by a somatic stem cell-recognizing antibody (A3) in rat colon development; possible presence of a new cell type forming the intestinal stem cell niche2019

    • Author(s)
      Nishina H, Katou-Ichikawa C, Kuramochi M, Izawa T, Kuwamura M, Yamate J.
    • Journal Title

      Journal of Toxicologic Pathology

      Volume: 32 Issue: 1 Pages: 37-48

    • DOI

      10.1293/tox.2018-0037

    • NAID

      130007575091

    • ISSN
      0914-9198, 1881-915X
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 毒性病理学の継承:その学術的意義と重要知見2023

    • Author(s)
      山手丈至
    • Organizer
      第39回日本毒性病理学会総会及び学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] AI画像解析による肝毒性所見の定量化と血清ALT、ASTとの相関解析2023

    • Author(s)
      稲井 洋平、井澤 武史、瓶井 知美、田中 美有、山手 丈至、桑村 充
    • Organizer
      第39回日本毒性病理学会総会及び学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 線維化の功と罪、そのメカニズムを探る2022

    • Author(s)
      山手丈至
    • Organizer
      実験病理組織技術研究会 第28回学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 鉄過剰による薬物性肝障害の修飾に関わるオートファジーの解析2021

    • Author(s)
      藤原 奨,井澤 武史,相川 諒,桑村 充,山手 丈至
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] マクロファージと線維化2021

    • Author(s)
      山手丈至
    • Organizer
      第8回日本獣医病理学専門家協会学術集会 スライドセミナー
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 幹細胞病理学の展開と応用:体性幹細胞を基軸とした万能細胞由来腫瘍の組織発生と線維化関連筋線維芽細胞の特性の解明2020

    • Author(s)
      山手丈至
    • Organizer
      第161回日本獣医学会学術集会 日本獣医学会越智賞受賞
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] チオアセトアミド誘発ラット急性肝障害モデルの好中球・マクロファーシ誘導における炎症誘導因子の役割の解明2019

    • Author(s)
      倉持 瑞樹,井澤 武史,Rahman N,桑村 充,山手 丈至
    • Organizer
      第35回日本毒性病理学会学術集会(東京都江戸川区)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Participation of heterogeneous macrophages related to M1/M2 types in D-galactosamine-induced acute rat liver injury2019

    • Author(s)
      Rahman N,Pervin M,倉持 瑞樹,Karim M,井澤 武史,桑村 充,山手 丈至
    • Organizer
      第35回日本毒性病理学会学術集会(東京都江戸川区).
    • Related Report
      2019 Annual Research Report
  • [Presentation] 「DAMPs-オートファジー-肝マクロファージ」の相互作用に基づいたLPSの肝機能への影響2019

    • Author(s)
      高見 優生,倉持 瑞樹,井澤 武史,桑村 充,山手 丈至
    • Organizer
      第162回日本獣医学会学術集会(茨城県つくば市)
    • Related Report
      2019 Annual Research Report
  • [Remarks] 大阪公立大学 獣医学研究科 獣医病理学教室

    • URL

      http://www.vet.osakafu-u.ac.jp/path/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 大阪府立大学 獣医病理学教室

    • URL

      http://www.vet.osakafu-u.ac.jp/path/

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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