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New mechanism of teratoma formation associated with GANP function.

Research Project

Project/Area Number 20K16228
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49030:Experimental pathology-related
Research InstitutionFujita Health University

Principal Investigator

Sakai Yasuhiro  藤田医科大学, 医学部, 講師 (20754394)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords奇形腫マウスモデル / GANP / 始原生殖細胞 / 奇形腫発生 / 精巣奇形腫 / 転写共役型DNA傷害 / 奇形腫 / 精巣 / R-loop
Outline of Research at the Start

奇形腫はヒト iPS 細胞や ES 細胞の移植の際に発生する腫瘍で,再生医療の進歩の足枷になっている.申請者等は GANP タンパクを過剰発現させたトランスジェニックマウスを作製したところ,高確率に精巣・子宮に奇形腫が自然発生することを発見した.本研究は,①奇形腫等の腫瘍における GANP の発現解析,②GANP を介した DNA 傷害と奇形腫発生の関係解明,③幹細胞性に着目した奇形腫細胞における GANP の機能解析,を目的とする.モデルマウス・分子生物学的解析のみならず,ヒト組織検体を用いた解析まで交えて複合的に行い,ヒト奇形腫の発症メカニズムを GANP の機能面から明らかにする.

Outline of Final Research Achievements

We analyzed the expression of GANP in human testicular postpubertal-type teratomas and established a novel mouse model to reveal the association between GANP and teratomagenesis.
We analyzed 31 cases of human testicular postpubertal-type teratomas and, in all cases, GANP was overexpressed. The aberrant expression was also detected in germ cell neoplasia in situ (GCNIS) accompanied by the teratoma. To further clarify the association between GANP and teratomagenesis, we established a novel teratomagenesis mouse model (CAG-ganp Tg mice). In the GANP-teratoma mice, GANP-overexpressing teratomas were more frequent at the testes and the middle portion of the uterus than has been seen in the previously established mouse models.
In conclusion, GANP is overexpressed in testicular postpubertal-type teratomas and is an essential teratomagenic factor.

Academic Significance and Societal Importance of the Research Achievements

ヒトiPS細胞を用いた再生医療は疾患の治療に飛躍的な進歩をもたらす可能性を秘めているが、現在では移植による奇形腫の発生が大きな問題となっている。このことを克服するために奇形腫発生制御の研究が世界中で進められている。しかし、従前より使用されている奇形腫好発系のマウス129/Sv系統や129+Ter/Sv系統でも奇形腫の発生率は極めて低く。奇形腫の分子生物学的解析は困難を極めていた.私たちは奇形腫発生のメカニズムにGANPが密接に関係していることを明らかにしたと同時に、CAG-ganp Tgマウスは奇形腫発生率が高く、奇形腫発生を制御するための新しい技術開発にも極めて有用であることが分かった。

Report

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

    (34 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (3 results) Journal Article (14 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 13 results,  Open Access: 8 results) Presentation (13 results) (of which Invited: 2 results) Book (4 results)

  • [Int'l Joint Research] University of Florida(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Universitas Padjadjaran(インドネシア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Naresuan University(タイ)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Testicular teratomagenesis from primordial germ cells with overexpression of germinal center-associated nuclear protein2023

    • Author(s)
      Yasuhiro Sakai, Kazuya Yoshinaga, Ayaka Yoshida, Andri Rezano, Kazuya Shiogama, Yoshiaki Kawashima, Tadashi Yoshizawa, Akihiko Yoshizawa, Shingo Hatakeyama, Chikara Ohyama, Hiroyasu Ito, Masato Abe, Hiroshi Kijima, Yoshiro Otsuki, Akihiko Ito, Toyonori Tsuzuki, Motohiro Takeya, Nobuo Sakaguchi & Kazuhiko Kuwahara
    • Journal Title

      Cancer Science

      Volume: 114 Issue: 4 Pages: 1729-1739

    • DOI

      10.1111/cas.15685

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spermidine enhances the efficacy of adjuvant in HBV vaccination in mice2023

    • Author(s)
      Ito Daisuke、Ito Hiroyasu、Ando Tatsuya、Sakai Yasuhiro、Ideta Takayasu、Ishii J. Ken、Ishikawa Tetsuya、Shimizu Masahito
    • Journal Title

      Hepatology Communications

      Volume: 7 Issue: 4

    • DOI

      10.1097/hc9.0000000000000104

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Possible Association Between Melanoma Arising from Congenital Naevus and Oestrogen or Progesterone Receptor Expression: Clinicopathological Analysis.2023

    • Author(s)
      Sumitomo C, Iwata Y, Sakai Y, Tsukamoto T, Sugiura K.
    • Journal Title

      Acta Derm Venereol

      Volume: - Pages: adv00887-adv00887

    • DOI

      10.2340/actadv.v103.5206

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Administration of spermidine attenuates concanavalin A-induced liver injury2023

    • Author(s)
      Ando Tatusya、Ito Daisuke、Shiogama Kazuya、Sakai Yasuhiro、Abe Masato、Ideta Takayasu、Kanbe Ayumu、Shimizu Masahito、Ito Hiroyasu
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 648 Pages: 44-49

    • DOI

      10.1016/j.bbrc.2023.01.072

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cytomorphology and Gene Expression Signatures of Anchorage-independent Aggregations of Oral Cancer Cells2023

    • Author(s)
      Kouhei Sakurai, Akira Nagai, Tatsuya Ando, Yasuhiro Sakai, Yuka Ideta, Yuichiro Hayashi, Junichi Baba, Kenji Mitsudo, Masaharu Akita, Nobutake Yamamichi, Hidetsugu Fujigaki, Taku Kato, Hiroyasu Ito
    • Journal Title

      Cancer Genomics Proteomics

      Volume: 20 Issue: 1 Pages: 64-74

    • DOI

      10.21873/cgp.20365

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The philosophy of dermatopathology2022

    • Author(s)
      Sakai Yasuhiro
    • Journal Title

      Diagnostics

      Volume: 12 Issue: 12 Pages: 3091-3091

    • DOI

      10.3390/diagnostics12123091

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transcriptome of sessile serrated adenoma/polyps is associated with MSI-high colorectal cancer and decreased expression of CDX22022

    • Author(s)
      Daisuke Ohki, Nobutake Yamamichi, Yoshiki Sakaguchi, Yu Takahashi, Natsuko Kageyama-Yahara, Mitsue Yamamichi, Chihiro Takeuchi, Yosuke Tsuji, Yasuhiro Sakai, Kouhei Sakurai, Shuta Tomida, Kazuhiko Koike, Mitsuhiro Fujishiro
    • Journal Title

      Cancer Medicine

      Volume: 00 Issue: 24 Pages: 1-13

    • DOI

      10.1002/cam4.4810

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sulfated Glycans Recognized by S1 Monoclonal Antibody can Serve as a Diagnostic Marker for Malignant Pleural Mesothelioma2022

    • Author(s)
      Koki Nakashima, Yasuhiro Sakai, Hitomi Hoshino, Yukihiro Umeda, Hiroto Kawashima, Yoshitaka Sekido, Tamotsu Ishizuka, Motohiro Kobayashi
    • Journal Title

      Lung

      Volume: 200 Issue: 3 Pages: 531-534

    • DOI

      10.1007/s00408-022-00531-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Histology of Cardiac Sarcoidosis with novel considerations arranged upon a pathologic basis2022

    • Author(s)
      Shu Kato, Yasuhiro Sakai, Asako Okabe, Yoshiaki Kawashima, Kazuhiko Kuwahara, Kazuya Shiogama, Masato Abe, Hiroyasu Ito & Shin'ichiro Morimoto
    • Journal Title

      Journal of Clinical Medicine

      Volume: 11 Issue: 1 Pages: 251-251

    • DOI

      10.3390/jcm11010251

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Can gastritis AI evaluate the risk of gastric cancer? - A challenging task for deep learning to get gastrointestinal pathologists' eyes2021

    • Author(s)
      Yasuhiro Sakai, Mai Iwaya, Kensaku Mori
    • Journal Title

      Impact

      Volume: 2021 Issue: 5 Pages: 57-59

    • DOI

      10.21820/23987073.2021.5.57

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] Increased chemosensitivity via BRCA2-independent DNA damage in DSS1- and PCID2-depleted breast carcinomas2021

    • Author(s)
      Gondo Naomi、Sakai Yasuhiro、Zhang Zhenhuan、Hato Yukari、Kuzushima Kiyotaka、Phimsen Suchada、Kawashima Yoshiaki、Kuroda Makoto、Suzuki Motoshi、Okada Seiji、Iwata Hiroji、Toyama Tatsuya、Rezano Andri、Kuwahara Kazuhiko
    • Journal Title

      Laboratory Investigation

      Volume: 101 Issue: 8 Pages: 1048-1059

    • DOI

      10.1038/s41374-021-00613-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spread of vimentin-immunoreactive cells within the plaque-like lesion in the spinal anterior horn of a patient with post-poliomyelitis syndrome2021

    • Author(s)
      Hineno A, Oyanagi K, Yoshida T, Sakai Y, Kannno H, Sekijima Y
    • Journal Title

      Neuropathology

      Volume: 41 Issue: 5 Pages: 406-411

    • DOI

      10.1111/neup.12768

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 膀胱原発高分化型神経内分泌腫瘍の1例2021

    • Author(s)
      太田 諒,新宅 雅幸,酒井 康弘,林 昭伸,中谷 中
    • Journal Title

      日本臨床細胞学会雑誌

      Volume: 69 Pages: 493-497

    • NAID

      40022664490

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The critical role of germinal center-associated nuclear protein in cell biology, immunohematology, and hematolymphoid oncogenesis2020

    • Author(s)
      Yasuhiro Sakai, Suchada Phimsen, Seiji Okada & Kazuhiko Kuwahara
    • Journal Title

      Experimental Hematology

      Volume: 90 Pages: 30-38

    • DOI

      10.1016/j.exphem.2020.08.007

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 足場非依存的な癌細胞クラスター形成を制御する分子機構の解析2023

    • Author(s)
      永井 徳、櫻井 浩平、酒井 康弘、安藤 達也、加藤 卓、伊藤 弘康
    • Organizer
      第112回日本病理学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] GANP過剰発現に起因する精巣奇形腫発症とその病理学的意義2023

    • Author(s)
      桑原 一彦、酒井 康弘、伊藤 彰彦
    • Organizer
      第112回日本病理学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 足場喪失によって形成される癌細胞クラスターの分子病理学的解析2022

    • Author(s)
      櫻井 浩平、永井 徳、秋田 正治、安藤 達也、酒井 康弘、加藤 卓、伊藤 弘康
    • Organizer
      日本動物実験代替法学会第35回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 乳癌における抗癌標的治療分子DSS1と薬剤抵抗機序2022

    • Author(s)
      桑原 一彦、酒井 康弘
    • Organizer
      第111回日本病理学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 慢性胃炎におけるArtificial Intelligenceを用いた胃癌リスク評価について2022

    • Author(s)
      岩谷 舞、酒井 康弘、林 雄一郎、上原 剛、吉澤 明彦、太田 浩良、森 健策
    • Organizer
      第111回日本病理学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 病理診断領域におけるAIとDX 病理診断AIガイドライン策定の意図と概要2022

    • Author(s)
      白石 泰三,酒井 康弘,吉澤 明彦,神坂 亮一,小西 知世
    • Organizer
      日本遠隔医療学会スプリングカンファレンス2022
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 特別シンポジウム1 病理AIガイドラインについて2021

    • Author(s)
      吉澤 明彦,酒井 康弘,白石 泰三
    • Organizer
      第110回日本病理学会総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 中心体複製制御因子SAC3D1に着目した非遺伝性乳癌の予後解析2021

    • Author(s)
      加藤 秀,酒井 康弘,上本 康明,鈴木 元,遠山 竜也,桑原 一彦
    • Organizer
      第110回日本病理学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 神経内分泌性の悪性汗器官腫瘍:EMPSGCとLGNECSについて2021

    • Author(s)
      三浦 圭子,本間 勉,酒井 康弘
    • Organizer
      第37回日本皮膚悪性腫瘍学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 乳がんにおけるDSS1・PCID2の発現量と化学療法抵抗性の検討2021

    • Author(s)
      酒井 康弘
    • Organizer
      第68回日本臨床検査医学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 中心体複製制御因子SAC3D1に着目した非遺伝性乳癌の予後解析2021

    • Author(s)
      酒井 康弘,伊藤 弘康
    • Organizer
      第68回日本臨床検査医学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 中心体複製制御因子の乳癌悪性進展における意義2020

    • Author(s)
      桑原 一彦,酒井 康弘,黒田 誠,塚本 徹哉
    • Organizer
      第109回日本病理学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] ヒト精巣胚細胞感受性遺伝子ganpの奇形腫発症における病理学的意義2020

    • Author(s)
      酒井 康弘,塚本 徹哉,黒田 誠,桑原 一彦
    • Organizer
      第109回日本病理学会総会
    • Related Report
      2020 Research-status Report
  • [Book] 病理診断クイックリファレンス2023(病理と臨床 臨時増刊号 Vol.41)(分担執筆)2023

    • Author(s)
      酒井 康弘
    • Total Pages
      4
    • Publisher
      文光堂
    • Related Report
      2022 Annual Research Report
  • [Book] 病理診断とAI(耳鼻咽喉科 2022年5月号)2022

    • Author(s)
      酒井 康弘
    • Total Pages
      11
    • Publisher
      科学評論社
    • Related Report
      2022 Annual Research Report
  • [Book] 病理AIガイドラインについて(病理と臨床 2021年8月号)2021

    • Author(s)
      吉澤 明彦、酒井 康弘、白石 泰三
    • Total Pages
      7
    • Publisher
      文光堂
    • Related Report
      2021 Research-status Report
  • [Book] GANP: An Immunoactive Protein with a Key Role in Tumourigenesis2020

    • Author(s)
      Yasuhiro Sakai、Kazuhiko Kuwahara
    • Total Pages
      5
    • Publisher
      Scientia
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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