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Visualize gene point mutations from cytological specimens to elucidate the mechanisms that cause cell atypia

Research Project

Project/Area Number 20K16198
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49020:Human pathology-related
Research InstitutionWakayama Medical University

Principal Investigator

Matsuzaki Ibu  和歌山県立医科大学, 医学部, 助教 (60647428)

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 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords細胞診 / 遺伝子変異 / 細胞異型 / 点変異検出
Outline of Research at the Start

細胞診は、採取の簡便性と診断の有用性から、その検体数は年々増加傾向にある。さらに、治療戦略を立案するコンパニオン診断のための遺伝子解析材料としての有用性から、近年注目を浴びつつある。
本研究は、細胞診検体を用いて、がん細胞の遺伝子点変異を細胞内(in situ)で視覚化する方法を開発し、形態学的変化を解析することを目指している。変異細胞に生じる形態学的変化をとらえることができれば、細胞診の正診率の向上のみならず、遺伝子検査に適正な検体か判断が容易になる可能性が高いと考える。

Outline of Final Research Achievements

The purpose of this study was to develop a method for visualizing gene point mutations in situ using cytological specimens and to analyze morphological changes. Prior to in situ visualization, I examined whether there were differences in cell morphology and detected genes depending on the fixation solutions normally used for cell diagnostic materials.As a result, morphological changes occurred depending on the type of fixative and fixation time, and there was a tendency for artifacts to occur in the mutated genes detected by next generation sequencing.
We examined the detection of point mutations using the BaseScope and mutaFISH methods, suggesting that the presence or absence of mutations causes differences in detection signals in case of using cultured cells.

Academic Significance and Societal Importance of the Research Achievements

細胞診は遺伝子解析材料としての有用性が注目されているが、Liquid-based cytology用の固定液の種類および固定時間によって、形態学的変化が生じるのみならず、遺伝子解析で検出される遺伝子変異にアーチファクトが生じる可能性があり、解析や解釈に注意が必要である。
in vivoでの個々の細胞ごとの遺伝子変異検出は、mutaFISH法などの培養細胞を用いての条件検討は終了した。
今後、細胞診材料に応用できれば、治療戦略を立案するためのコンパニオン診断に寄与できることが期待される。また、遺伝子変異を有無により細胞の形態学的変化を見いだせれば、細胞診断の正診率が向上できる可能性がある。

Report

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

    (16 results)

All 2023 2022 2021 2020

All Journal Article (11 results) (of which Peer Reviewed: 9 results,  Open Access: 5 results) Presentation (5 results)

  • [Journal Article] Targeted Next-Generation Sequencing of Flat Urothelial Lesions Reveals Putative Pathobiological Pathways, Potential Biomarkers, and Rational Therapeutic Targets2023

    • Author(s)
      Musangile Fidele Y.、Matsuzaki Ibu、Iwamoto Ryuta、Sagan Kanako、Nishikawa Mizuki、Mikasa Yurina、Takahashi Yuichi、Kojima Fumiyoshi、Hara Isao、Murata Shin-ichi
    • Journal Title

      Modern Pathology

      Volume: 36 Issue: 5 Pages: 100120-100120

    • DOI

      10.1016/j.modpat.2023.100120

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Kras Gene Analysis Using Liquid-Based Cytology Specimens Predicts Therapeutic Responses and Prognosis in Patients with Pancreatic Cancer2022

    • Author(s)
      Itonaga Masahiro、Ashida Reiko、Murata Shin-Ichi、Yamashita Yasunobu、Hatamaru Keiichi、Tamura Takashi、Kawaji Yuki、Kayama Yuudai、Emori Tomoya、Kawai Manabu、Yamaue Hiroki、Matsuzaki Ibu、Nagai Hirokazu、Kinoshita Yuichi、Wan Ke、Shimokawa Toshio、Kitano Masayuki
    • Journal Title

      Cancers

      Volume: 14 Issue: 3 Pages: 551-551

    • DOI

      10.3390/cancers14030551

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prognostic value of CD155/TIGIT expression in patients with colorectal cancer2022

    • Author(s)
      Murakami Daisuke、Matsuda Kenji、Iwamoto Hiromitsu、Mitani Yasuyuki、Mizumoto Yuki、Nakamura Yuki、Matsuzaki Ibu、Iwamoto Ryuta、Takahashi Yuichi、Kojima Fumiyoshi、Murata Shin-ichi、Yamaue Hiroki
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 3 Pages: 0265908-0265908

    • DOI

      10.1371/journal.pone.0265908

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Detection of HPV infection in urothelial carcinoma using RNAscope: Clinicopathological characterization2021

    • Author(s)
      Musangile Fidele Y.、Matsuzaki Ibu、Okodo Mitsuaki、Shirasaki Ayaka、Mikasa Yurina、Iwamoto Ryuta、Takahashi Yuichi、Kojima Fumiyoshi、Murata Shin‐ichi
    • Journal Title

      Cancer Medicine

      Volume: 10 Issue: 16 Pages: 5534-5544

    • DOI

      10.1002/cam4.4091

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clinicopathological and Molecular Characteristics of Macroscopically Yellowish-Colored Chromophobe Renal Cell Carcinoma Compared to Non-Yellowish-Colored Chromophobe Renal Cell Carcinoma2021

    • Author(s)
      Kojima Fumiyoshi、Matsuzaki Ibu、Kuroda Naoto、Mikasa Yurina、Musangile Fidele Y、Iwamoto Ryuta、Takahashi Yuichi、Matsubara Akiko、Kohjimoto Yasuo、Hara Isao、Murata Shin-ichi
    • Journal Title

      Clinical Pathology

      Volume: 14 Pages: 1-9

    • DOI

      10.1177/2632010x211064821

    • Related Report
      2021 Research-status Report
  • [Journal Article] Extracellularly Released Calreticulin Induced by Endoplasmic Reticulum Stress Impairs Syncytialization of Cytotrophoblast Model BeWo Cells2021

    • Author(s)
      Iwahashi Naoyuki、Ikezaki Midori、Nishitsuji Kazuchika、Yamamoto Madoka、Matsuzaki Ibu、Kato Naoki、Takaoka Naoyuki、Taniguchi Mana、Murata Shin-ichi、Ino Kazuhiko、Ihara Yoshito
    • Journal Title

      Cells

      Volume: 10 Issue: 6 Pages: 1305-1305

    • DOI

      10.3390/cells10061305

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lipid Droplet Accumulation Independently Predicts Poor Clinical Prognosis in High-Grade Serous Ovarian Carcinoma2021

    • Author(s)
      Iwahashi Naoyuki、Ikezaki Midori、Fujimoto Masakazu、Komohara Yoshihiro、Fujiwara Yukio、Yamamoto Madoka、Mizoguchi Mika、Matsubara Kentaro、Watanabe Yudai、Matsuzaki Ibu、Murata Shin-ichi、Ihara Yoshito、Ino Kazuhiko、Nishitsuji Kazuchika
    • Journal Title

      Cancers

      Volume: 13 Issue: 20 Pages: 5251-5251

    • DOI

      10.3390/cancers13205251

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synergistic Effects of Lenvatinib (E7080) and MEK Inhibitors against Anaplastic Thyroid Cancer in Preclinical Models2021

    • Author(s)
      Enomoto Keisuke、Hirayama Shun、Kumashiro Naoko、Jing Xuefeng、Kimura Takahito、Tamagawa Shunji、Matsuzaki Ibu、Murata Shin-Ichi、Hotomi Muneki
    • Journal Title

      Cancers

      Volume: 13 Issue: 4 Pages: 862-862

    • DOI

      10.3390/cancers13040862

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Paneth-like cells in renal cell carcinomas and in cysts associated with acquired cystic kidney disease: Clinicopathologic analysis, comparative study and description of precursor lesions2021

    • Author(s)
      Kojima Fumiyoshi、Alaghehbandan Reza、Kuroda Naoto、Matsuzaki Ibu、Mikasa Yurina、Musangile Fidele Y.、Iwamoto Ryuta、Takahashi Yuichi、Iwahashi Yoshifumi、Warigaya Kenji、Iba Akinori、Hara Isao、Murata Shin-ichi、Hes Ondrej
    • Journal Title

      Annals of Diagnostic Pathology

      Volume: 51 Pages: 151707-151707

    • DOI

      10.1016/j.anndiagpath.2021.151707

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Microtubule-organizing center-mediated structural atypia in low- and high-grade urothelial carcinoma.2020

    • Author(s)
      Murata SI, Kuroda M, Kawamura N, Warigaya K, Musangile FY, Matsuzaki I, Kojima F.
    • Journal Title

      Virchows Arch

      Volume: 478 Issue: 2 Pages: 327-334

    • DOI

      10.1007/s00428-020-02895-5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Primary cutaneous peripheral T‐cell lymphoma, not otherwise specified, associated with lymphomatoid papulosis after a 9‐year follow up: A case report2020

    • Author(s)
      Muraoka Kyoko、Fujimoto Masakazu、Iwahashi Yoshifumi、Matsuzaki Ibu、Yonei Nozomi、Murata Shin‐ichi、Jinnin Masatoshi
    • Journal Title

      The Journal of Dermatology

      Volume: 47 Issue: 6 Pages: 641-645

    • DOI

      10.1111/1346-8138.15351

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 尿路上皮癌におけるHPV感染~RNAscopeによる解析~2022

    • Author(s)
      松﨑 生笛
    • Organizer
      第63回日本臨床細胞学会春期大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Thinprep法による尿細胞診の標準化と利点2021

    • Author(s)
      松﨑 生笛
    • Organizer
      第62回日本臨床細胞学会春期大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 尿細胞診LBC検体を用いた次世代シークエンシング解析の有用性2021

    • Author(s)
      松﨑 生笛
    • Organizer
      第64回日本臨床細胞学会近畿連合会
    • Related Report
      2021 Research-status Report
  • [Presentation] Thin Prep尿細胞診検体を使った人工知能解析と網羅的遺伝子解析2021

    • Author(s)
      松﨑 生笛
    • Organizer
      第20回泌尿器細胞診カンファレンスin別府
    • Related Report
      2021 Research-status Report
  • [Presentation] 細胞像と遺伝子解析から組織像に迫る2020

    • Author(s)
      松﨑 生笛
    • Organizer
      第59回日本臨床細胞学会秋期大会
    • Related Report
      2020 Research-status Report

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

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