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2019 Fiscal Year Annual Research Report

Global DNA/proteome analyses of orphan pancreatobiliary diseases using next-generation technologies

Research Project

Project/Area Number 18H02630
Research InstitutionKobe University

Principal Investigator

全 陽  神戸大学, 医学研究科, 医学研究員 (90377416)

Co-Investigator(Kenkyū-buntansha) 小松 正人  神戸大学, 医学部附属病院, 助教 (50531753)
藤倉 航平  神戸大学, 医学研究科, 医学研究員 (50773751)
Project Period (FY) 2018-04-01 – 2021-03-31
KeywordsExome解析 / 胆管内乳頭状腫瘍 / 胆管内管状腫瘍 / 粘液性嚢胞腫瘍
Outline of Annual Research Achievements

本年度は胆膵領域に発生する腫瘍性,非腫瘍性疾患に対する網羅的遺伝子解析を行った.胆管内管状乳頭状腫瘍(ITPN)は稀な腫瘍で,その特徴は十分には解析されておらず,特に遺伝子異常に関してはほとんど理解されていなかった.胆管ITPN症例で網羅的エクソーム解析を行うと,変異遺伝子とMUC5AC発現に関連があることが明らかとなった.MUC5AC陰性例では, CTNNB1, SF3B1, BAP1,BRCA1に変異が見られた.KRAS変異はMUC5AC陽性例の75%で確認されたが,MUC5AC陰性例には見られなかった.さらにMUC5AC陽性例ではクロマチンリモデリングに関連した遺伝子(ARID1A, KMT2C)にも変異が見られた.他の胆道系腫瘍と比較すると,MUC5AC陰性例は胆管癌や胆管内乳頭状腫瘍(IPNB)で見られる遺伝子異常と共通したものがほとんどなく,独立した腫瘍単位であると考えられた.一方,MUC5AC陽性例の遺伝子異常は胆管癌と共通しており,胆管癌の一組織亜型である可能性が示唆された.同様に胆管粘液性嚢胞腫瘍(MCN)の遺伝子異常を解析すると,癌関連遺伝子としてKRAS変異のみが認められたが,GNASを含めた他の遺伝子には有意な異常は確認されなかった.

非腫瘍性疾患である,IgG4関連硬化性胆管炎,自己免疫性膵炎(1型,2型),濾胞性胆管炎・膵炎の組織から抽出した核酸を用いてB細胞受容体IGHと、T細胞受容体β鎖のrepertoire解析を行ったところ,ややdominantなクローンは確認できるものの,いずれの症例もpolyclonalであると考えられ,特定の自己抗体が病態を誘導している確証は得られなかった.IgG4関連疾患の患者の末梢血を用いた研究ではリンパ球はoligoclonalであると報告されており,組織中に浸潤するリンパ球では異なる結果であった.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

研究施設のロックダウン等の影響で当初の予定より解析に時間を要したが,研究自体は計画に沿って順調に進んでいる.

Strategy for Future Research Activity

本研究では、胆膵領域に発生する希少疾患を対象とし、2つの次世代技術(網羅的シークエンスとリン酸化プロテオーム解析)を用いた解析を行う。次年度も研究計画に沿って,特にプロテオーム解析を進める.

  • Research Products

    (16 results)

All 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (11 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 11 results) Presentation (3 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Int'l Joint Research] Asan Medical Center(韓国)

    • Country Name
      KOREA (REP. OF KOREA)
    • Counterpart Institution
      Asan Medical Center
  • [Int'l Joint Research] King's College Hospital/King's College London(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      King's College Hospital/King's College London
  • [Journal Article] IL‐33 overexpression in gallbladder cancers associated with pancreatobiliary maljunction2019

    • Author(s)
      Tomioka Yuichiro、Sung You‐Na、Sawada Ryuichiro、Hong Seung‐Mo、Akita Masayuki、Itoh Tomoo、Ajiki Tetsuo、Fukumoto Takumi、Zen Yoh
    • Journal Title

      Histopathology

      Volume: 75 Pages: 365~375

    • DOI

      10.1111/his.13863

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] MDM2 copy number increase: a poor prognostic, molecular event in esophageal squamous cell carcinoma2019

    • Author(s)
      Sawada Ryuichiro、Maehara Ritsuko、Oshikiri Taro、Nakamura Tetsu、Itoh Tomoo、Kodama Yuzo、Kakeji Yoshihiro、Zen Yoh
    • Journal Title

      Human Pathology

      Volume: 89 Pages: 1~9

    • DOI

      10.1016/j.humpath.2019.04.002

    • Peer Reviewed
  • [Journal Article] Keratin 19‐expressing hepatocellular carcinoma and small‐duct type intrahepatic cholangiocarcinoma show a similar postoperative clinical course but have distinct genetic features2019

    • Author(s)
      Akita Masayuki、Ajiki Tetsuo、Fukumoto Takumi、Itoh Tomoo、Zen Yoh
    • Journal Title

      Histopathology

      Volume: 75 Pages: 385~393

    • DOI

      10.1111/his.13884

    • Peer Reviewed
  • [Journal Article] Autoimmune Pancreatitis Type 2: Diagnostic Utility of PD-L1 Immunohistochemistry2019

    • Author(s)
      Gupta Rajib、Neyaz Azfar、Chougule Abhijit、Akita Masayuki、Zen Yoh、Forcione David、Castillo Carlos Fernandez-Del、Ferrone Cristina R.、Deshpande Vikram
    • Journal Title

      American Journal of Surgical Pathology

      Volume: 43 Pages: 898~906

    • DOI

      10.1097/PAS.0000000000001282

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pancreatobiliary-type intraductal papillary mucinous neoplasm of the pancreas may have 2 subtypes with distinct clinicopathologic and genetic features2019

    • Author(s)
      Shimizu Takashi、Akita Masayuki、Sofue Keitaro、Toyama Hirochika、Itoh Tomoo、Fukumoto Takumi、Zen Yoh
    • Journal Title

      Human Pathology

      Volume: 91 Pages: 26~35

    • DOI

      10.1016/j.humpath.2019.05.010

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Duct‐obstructive pancreatitis with granulocytic epithelial lesion in a patient with ulcerative colitis: An atypical manifestation of type 2 autoimmune pancreatitis?2019

    • Author(s)
      Ahn Soomin、Lee Jong‐chan、Hwang Jin‐Hyeok、Yoon Yoo‐Seok、Lee Kyoung Ho、Zen Yoh
    • Journal Title

      Pathology International

      Volume: 69 Pages: 420~426

    • DOI

      10.1111/pin.12805

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Type 1 Autoimmune Pancreatitis with Imaging Appearance Similar to That of Malignant Cystic Tumor2019

    • Author(s)
      Ezaki Takeshi、Masuda Atsuhiro、Shiomi Hideyuki、Nakagawa Takashi、Sofue Keitaro、Toyama Hirochika、Zen Yoh、Kodama Yuzo
    • Journal Title

      Case Reports in Gastroenterology

      Volume: 13 Pages: 265~270

    • DOI

      10.1159/000500477

    • Peer Reviewed
  • [Journal Article] Checkpoint inhibitor-induced liver injury: A novel form of liver disease emerging in the era of cancer immunotherapy2019

    • Author(s)
      Zen Yoh、Yeh Matthew M.
    • Journal Title

      Seminars in Diagnostic Pathology

      Volume: 36 Pages: 434~440

    • DOI

      10.1053/j.semdp.2019.07.009

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Immune‐related adverse reactions in the hepatobiliary system: second‐generation check‐point inhibitors highlight diverse histological changes2019

    • Author(s)
      Zen Yoh、Chen Yen‐Ying、Jeng Yung‐Ming、Tsai Hung‐Wen、Yeh Matthew M
    • Journal Title

      Histopathology

      Volume: 76 Pages: 470~480

    • DOI

      10.1111/his.14000

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Intracholecystic papillary neoplasm of the gallbladder protruding into the common bile duct: A case report2019

    • Author(s)
      Yokode Masataka、Hanada Keiji、Shimizu Akinori、Minami Tomoyuki、Hirohata Ryosuke、Abe Tomoyuki、Amano Hironobu、Yonehara Shuji、Zen Yoh
    • Journal Title

      Molecular and Clinical Oncology

      Volume: 11 Pages: 488~492

    • DOI

      10.3892/mco.2019.1919

    • Peer Reviewed
  • [Journal Article] The 2019 American College of Rheumatology/European League Against Rheumatism classification criteria for IgG4-related disease2019

    • Author(s)
      Wallace Z, Zen Y, et al.
    • Journal Title

      Annals of the Rheumatic Diseases

      Volume: 79 Pages: 77~87

    • DOI

      10.1136/annrheumdis-2019-216561

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] IgG4 pathology: Background and its relevance to IBD2020

    • Author(s)
      Yoh Zen
    • Organizer
      Congress of European Crohn's and colitis organisation
    • Int'l Joint Research / Invited
  • [Presentation] A case of acute hepatitis with inclusion body2020

    • Author(s)
      Yoh Zen
    • Organizer
      Congress of United States Canadian Academy of Pathology
    • Int'l Joint Research / Invited
  • [Presentation] IgG4-related cholangiopathy2019

    • Author(s)
      Yoh Zen
    • Organizer
      31st European Congress of Pathology
    • Int'l Joint Research

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Published: 2021-12-27  

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