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Expression kinetics and pathological analysis study of T-cell suppressive ligand PD-L1 in oral cancer stem cell niche

Research Project

Project/Area Number 19K10359
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57060:Surgical dentistry-related
Research InstitutionHiroshima University

Principal Investigator

TANI Ryouji  広島大学, 病院(歯), 助教 (10291486)

Co-Investigator(Kenkyū-buntansha) 岡本 哲治  東亜大学, その他の研究科, 教授 (00169153)
虎谷 茂昭  広島大学, 医系科学研究科(歯), 准教授 (90172220)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords口腔癌幹細胞ニッチ / 放射線耐性口腔癌細胞株 / PD-L1 / IGF2 / CD133陽性細胞 / 未分化細胞マーカー / 上皮間葉転換 / 口腔癌幹細胞 / ニッチ
Outline of Research at the Start

本研究において、我々は口腔癌幹細胞の細胞特性を有するCD133陽性細胞やSide population陽性細胞におけるPD-L1発現の解析を行う。さらに当科で加療した口腔癌患者の生検組織における口腔癌幹細胞ニッチにおけるPD-L1発現と患者の病態や再発転移や予後などの臨床的経過について検討を行い、口腔癌幹細胞ニッチにおけるT細胞抑制性リガンドPD-L1の発現動態と病態解析を行う。

Outline of Final Research Achievements

Radioresistant cell lines (LDR-A431 and HDR-A431) with cell characteristics of oral cancer stem cells were established in this study. Analysis of IGF2 and PD-L1 genes showed that gene expression of LDR-A431 was approximately 30-fold higher for IGF2 and 10-fold higher for PD-L1 compared to the parental strain. Western blot analysis showed that the protein expression of IGF2 and PD-L1 were increased approximately 2.5-fold and 2-fold, respectively, in LDR-A431 compared to the parental strain.
These results suggest that two factors, IGF2 and PD-L1, may be involved in the establishment and maintenance of radioresistant lines with cell characteristics of oral cancer stem cells.

Academic Significance and Societal Importance of the Research Achievements

癌幹細胞は、非癌幹細胞より生存能力が高く、その自己複製能により少数の細胞から再び腫瘍を形成する能力を有し、再発や転移巣の起源となるため、癌幹細胞に対する治療効果が癌患者の予後に大きく影響を与えている。したがって、治療成績を向上させるためには、癌幹細胞の制御が重要である。本研究成果から、癌幹細胞ニッチにおいても非癌幹細胞と同様なPD-1/PD-L1免疫チェックポイントシグナル伝達による免疫抑制機構が働いており、その制御機構にIGF2が関与していることが示唆された。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (35 results)

All 2021 2020 2019

All Journal Article (14 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 13 results,  Open Access: 9 results) Presentation (21 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] MICA A5.1 homozygous genotype is associated with a risk for early-onset oral cancer2021

    • Author(s)
      Tani R, Nanako Ito R, Matsui K, Yamasaki S, Hamada A, Tokumaru K, Toratani S, Okamoto T.
    • Journal Title

      Oral Oncology

      Volume: 116, May Pages: 105256-105256

    • DOI

      10.1016/j.oraloncology.2021.105256

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of a familial cleidocranial dysplasia with a novel RUNX2 mutation and establishment of patient-derived induced pluripotent stem cells.2021

    • Author(s)
      Hamada A., Mukasa H., Taguchi Y., Akagi E., Obayashi F., Yamasaki S., Kanda T., Koizumi K., Toratani S., Okamoto T.
    • Journal Title

      Odontology

      Volume: 15 Issue: 3 Pages: 252-262

    • DOI

      10.1007/s10266-021-00674-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Heparin-Binding Protein 17/Fibroblast Growth Factor-Binding Protein-1 Knockout Inhibits Proliferation and Induces Differentiation of Squamous Cell Carcinoma Cells.2021

    • Author(s)
      Shintani T., Higaki M., Okamoto T.
    • Journal Title

      Cancers (Basel)

      Volume: 29;13(11) Issue: 11 Pages: 2684-2684

    • DOI

      10.3390/cancers13112684

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhanced KRT13 gene expression bestows radiation resistance in squamous cell carcinoma cells.2021

    • Author(s)
      Nguyen TQ, Hamada A, Yamada K, Higaki M, Shintani T, Yoshioka Y, Toratani S, Okamoto T
    • Journal Title

      In Vitro Cellular & Developmental Biology-Animal.

      Volume: 57(3) Issue: 3 Pages: 300-314

    • DOI

      10.1007/s11626-020-00542-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A case of maxillary ameloblastic carcinoma with atypical histology2021

    • Author(s)
      Hamana Tomoaki、Hayashido Yasutaka、Mishima Takefumi、Hirota Suguru、Hamada Atsuko、Ando Toshinori、Miyauchi Mutsumi、Toratani Shigeaki
    • Journal Title

      Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology

      Volume: - Issue: 5 Pages: 536-545

    • DOI

      10.1016/j.ajoms.2021.03.007

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oral squamous cell carcinoma of the tongue dorsum with multiple cancer-associated mutations in the TP53 gene2020

    • Author(s)
      Yamasaki Sachiko、Tani Ryouji、Sakurai Shigeru、Toratani Shigeaki、Okamoto Tetsuji
    • Journal Title

      Oral Oncology

      Volume: 109 Pages: 104774-104774

    • DOI

      10.1016/j.oraloncology.2020.104774

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical investigation of oral cancer in adolescent and young adult generation2020

    • Author(s)
      Yoshioka Yukio、Sakaue Taishi、Matsui Kensaku、Tsushima Koji、Obayashi Fumitaka、Hamada Atsuko、Yamasaki Sachiko、Hamana Tomoaki、Sumi Kensaku、Kanda Taku、Koizumi Koichi、Tani Ryouji、Toratani Shigeaki、他10名
    • Journal Title

      Oral Science International

      Volume: ー Issue: 2 Pages: 20-27

    • DOI

      10.1002/osi2.1093

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of Kikuchi-Fujimoto disease after a cervical lymph node metastasis of mucoepidermoid carcinoma2020

    • Author(s)
      Higaki M, Kanda T, Ando T, Tani R, Toratani S
    • Journal Title

      Oral Maxillofac Surg.

      Volume: 24 Issue: 1 Pages: 133-137

    • DOI

      10.1007/s10006-020-00900-4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Induction of integration-free human-induced pluripotent stem cells under serum-and feeder-free conditions.:2020

    • Author(s)
      Hamada A., Akagi E., Yamasaki S., Nakatao H., Obayashi F., Ohtaka M., Nishimura K., Nakanishi M., Toratani S., Okamoto T.
    • Journal Title

      In Vitro Cellular & Developmental Biology-Animal.

      Volume: 56(1) Pages: 85-95

    • NAID

      120007132728

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Induction of Noonan syndrome-specific human induced pluripotent stem cells under serum-, feeder-, and integration-free conditions2020

    • Author(s)
      Hamada A., Akagi E., Obayashi F., Yamasaki S., Koizumi K., Ohtaka M., Nishimura K., Nakanishi M., Toratani S., Okamoto, T.
    • Journal Title

      In Vitro Cellular & Developmental Biology-Animal.

      Volume: 56(10) Pages: 888-895

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Novel PTCH1 mutations in Japanese familial nevoid basal cell carcinoma syndrome2020

    • Author(s)
      Nakase Y., Hamada A., Kitamura N., Hata T., Toratani S., Yamamoto T., Okamoto T.
    • Journal Title

      Hum Genome Var

      Volume: 7(1) Issue: 1 Pages: 38-38

    • DOI

      10.1038/s41439-020-00126-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 90歳以上の超高齢口腔がん患者の臨床的検討2019

    • Author(s)
      坂上泰士,吉岡幸男,松井健作,津島康司,大林史誠,濱田充子,山崎佐知子,浜名智昭,角 健作,神田 拓,小泉浩一,谷 亮治,林堂安貴,笹原妃佐子,伊藤 翼,佐渡友浩,石田康隆,岡本康正,小林雅史,坂本哲彦,明見能成,虎谷茂昭,岡本哲治.
    • Journal Title

      日本口腔科学会雑誌

      Volume: 68 Pages: 12-19

    • NAID

      130007626841

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Adolescent and Young Adult(AYA)世代における口腔がんの臨床的検討2019

    • Author(s)
      吉岡幸男,坂上泰士,松井健作,津島康司,大林史誠,濱田充子,山崎佐知子,浜名智昭,角 健作,神田 拓,小泉浩一,谷 亮治,林堂安貴,笹原妃佐子,伊藤 翼,佐渡友浩,石田康隆,岡本康正,小林雅史,坂本哲彦,明見能成,虎谷茂昭,岡本哲治.
    • Journal Title

      日本口腔科学会雑誌

      Volume: 68 Pages: 20-27

    • NAID

      130007626839

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 両側舌下部無痛性腫脹が先行発症した好酸球性多発血管炎性肉芽腫症の1例2019

    • Author(s)
      信本忠義,神田拓,林靖也,谷 亮治,小川郁子,岡本哲治.
    • Journal Title

      日本口腔科学会雑誌

      Volume: 68 Pages: 294-298

    • NAID

      130007776110

    • Related Report
      2019 Research-status Report
  • [Presentation] 広島大学病院口腔外科における免疫チェックポイント阻害薬投与症例の検討2021

    • Author(s)
      吉岡幸男,小野重弘,谷亮治,水田邦子,中川貴之,安藤俊範,坂本真一,武知正晃,虎谷茂昭,岡本哲治
    • Organizer
      第75回NPO法人口腔科学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] CRISPR/Cas9システムを用いた扁平上皮癌 (SCC) 細胞におけるHeparin-binding protein 17/FGF-Binding Protein-1 (HBp17/FGFBP-1) の機能解析2021

    • Author(s)
      檜垣美雷, 新谷智章, 岡本哲治
    • Organizer
      第75回NPO法人口腔科学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 口腔粘膜病変を契機に診断されたクローン病の1例2021

    • Author(s)
      福谷多恵子,谷亮治,三島健史,古庄寿子,虎谷茂昭
    • Organizer
      第31回日本口腔内科学会/第34回日本口腔診断学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] EWSR1-ATF1融合遺伝子の同定により診断し得た明細胞癌の一例2021

    • Author(s)
      檜垣美雷, 吉岡幸男, 岡本健人, 坂本真一, 安藤俊範, 岡本康正, 宮内睦美, 虎谷茂昭
    • Organizer
      第66回日本口腔外科学会総会・学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 次世代シーケンサーを用いた口腔癌患者の口腔内細菌叢の多様性解析2020

    • Author(s)
      松井健作,谷亮治,濱田充子,虎谷茂昭,岡本哲治
    • Organizer
      第65回日本口腔外科学会総会・学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] TP53変異を伴う多重癌患者に生じた舌背部扁平上皮癌の1例2020

    • Author(s)
      山崎佐知子,谷亮治,櫻井繁,虎谷茂昭,岡本哲治
    • Organizer
      第65回日本口腔外科学会総会・学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 舌癌頸部郭清後の化学放射線療法で発症した放射線肺臓炎の1例2020

    • Author(s)
      高橋秀明,神田拓,谷亮治,虎谷茂昭,柿本直也,岡本哲治
    • Organizer
      第65回日本口腔外科学会総会・学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 当科で加療したエナメル上皮腫の顎骨保存外科療法に関する臨床統計的検討2020

    • Author(s)
      松井健作,神田 拓,浜名智昭,小泉浩一,谷亮治,吉岡幸男,林堂安貴,虎谷茂昭,岡本哲治
    • Organizer
      第65回日本口腔外科学会総会・学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 当科におけるニボルマブによる口腔がん治療の報告2020

    • Author(s)
      吉岡幸男,浜名智昭,松井健作,櫻井 繁,神田 拓,小泉浩一,谷亮治,虎谷茂昭,岡本哲治
    • Organizer
      第74回日本口腔科学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 近赤外分光法 (Near-infrared spectroscopy: NIRS) を用いた歯科装具の装着刺激による脳血流動態の解析 第3報2020

    • Author(s)
      宮田秀政,谷亮治,浜名智昭,虎谷茂昭,岡本哲治
    • Organizer
      第74回日本口腔科学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 口唇浮腫を契機に急性骨髄性白血病の診断に至った1例2020

    • Author(s)
      松井健作,谷亮治,岡本健人,虎谷茂昭
    • Organizer
      第30 回日本口腔内科学会  第13 回日本口腔検査学会 合同学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Lymphokine-activated killer細胞の細胞障害活性の誘導に及ぼすコレステロール合成阻害剤の影響2019

    • Author(s)
      三島健史, 谷 亮治, 松井健作, 内迫香織, 濱田充子, 虎谷茂昭, 岡本哲治.
    • Organizer
      第73回NPO法人日本口腔科学会学術集会(川越)
    • Related Report
      2019 Research-status Report
  • [Presentation] 口腔癌患者における腸内ならびに口腔内細菌叢の多様性解析 第二報.2019

    • Author(s)
      松井健作,谷亮治,濱田充子,虎谷茂昭,大友剛,徳丸浩一郎,岡本哲治
    • Organizer
      第73回 NPO法人日本口腔科学会学術集会(川越)
    • Related Report
      2019 Research-status Report
  • [Presentation] 無血清培養系での口腔癌由来細胞株の樹立.2019

    • Author(s)
      濱田充子,佐藤成紀,内迫香織,中瀬洋司,大林史誠,中峠洋隆,山崎佐知子,谷 亮治,虎谷茂昭,岡本哲治.
    • Organizer
      第73回NPO法人日本口腔科学会学術集会 (川越)
    • Related Report
      2019 Research-status Report
  • [Presentation] 無血清培養系を用いた扁平上皮癌細胞の放射線耐性獲得機構の細胞内分泌学的 機能解析2019

    • Author(s)
      内迫香織,濱田充子,三島健史,松井健作,谷亮治,虎谷茂昭,岡本哲治.
    • Organizer
      第73回NPO法人日本口腔科学会総会(川越)
    • Related Report
      2019 Research-status Report
  • [Presentation] 口腔扁平上皮癌におけるhuman papilloma virus(HPV)16の関与.2019

    • Author(s)
      林 靖也, 虎谷茂昭,中峠洋隆,松井健作,福谷多恵子,濱田充子,吉岡幸男,谷亮治,岡本哲治.
    • Organizer
      第73回NPO法人日本口腔科学会学術集会(川越)
    • Related Report
      2019 Research-status Report
  • [Presentation] 近赤外分光法(Near-infrared spectroscopy)を用いた歯科装具の装着刺激による脳血流動態の解析 第二報.2019

    • Author(s)
      宮田秀政,谷 亮治,浜名智昭,虎谷茂昭,岡本哲治.
    • Organizer
      第73回NPO法人日本口腔科学会学術集会(川越)
    • Related Report
      2019 Research-status Report
  • [Presentation] 次世代シーケンサーを用いた口腔癌患者の口腔内細菌叢の多様性解析.2019

    • Author(s)
      松井健作,谷亮治,濱田充子,虎谷茂昭,大友剛,徳丸浩一郎,岡本哲治.
    • Organizer
      第18回中国四国口腔癌研究会学術講演会(広島)
    • Related Report
      2019 Research-status Report
  • [Presentation] Lymphokine-activated killer 細胞の細胞障害活性の誘導に及ぼすコレステロール合成阻害剤の影響2019

    • Author(s)
      三島健史, 谷亮治, 松井健作, 内迫香織, 濱田充子, 虎谷茂昭, 岡本哲治.
    • Organizer
      第18回中四国口腔癌研究会, (広島)
    • Related Report
      2019 Research-status Report
  • [Presentation] Lymphokine-activated killer 細胞の細胞障害活性の誘導におけるインスリン及びコレステロールの機能解析2019

    • Author(s)
      三島健史, 谷亮治, 松井健作, 内迫香織, 濱田充子, 虎谷茂昭, 岡本哲治.
    • Organizer
      第56回口腔組織培養学会 ,(岐阜)
    • Related Report
      2019 Research-status Report
  • [Presentation] Establishment and Characterization of Disease-specific Human iPSCs in Serum-, Integration- and Feeder-free Cultures2019

    • Author(s)
      A. Hamada, Y. Nakase, F. Obayashi, T. Fukutani, H. Nakatao, E. Sakaue , S. Yamasaki, T. Kanda, K. Koizumi, Y. Yoshioka, R. Tani , S. Toratani, JD. Sato, T. Okamoto.
    • Organizer
      Annual Meeting of Society for In Vitro Biology Meeting (Tampa, Florida, USA)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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