• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Functional analysis of serotonin signaling in the progression of squamous cell carcinoma

Research Project

Project/Area Number 20K16315
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionTokyo University of Science

Principal Investigator

Okazaki Shogo  東京理科大学, 研究推進機構生命医科学研究所, 助教 (20784044)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords扁平上皮癌 / 細胞分化 / セロトニン / 口腔扁平上皮癌 / 分化 / 悪性腫瘍 / 細胞内代謝
Outline of Research at the Start

セロトニンは重要な神経伝達物質としてこれまで研究が進められてきた一方で、腫瘍の進展に及ぼす影響についての詳細な解析はなされていない。しかしながらある種のセロトニン受容体は悪性腫瘍において高発現が認められ、その発現が予後不良と相関することから、悪性腫瘍においても何らかの機能的役割を担っている可能性が示唆される。本研究では、扁平上皮癌に発現するセロトニン受容体に着目し、悪性腫瘍の形成及び進展に及ぼす影響を生体レベルで明らかとする。さらに、セロトニンシグナルの悪性腫瘍における治療標的としての可能性を検討し、新規治療法の開発を試みる。

Outline of Final Research Achievements

We analyzed the effect of the serotonin receptor HTR7, which is highly expressed in squamous cell carcinomas of the oral cavity, esophagus, and lung, on malignant tumor progression. Knockdown of HTR7 in oral squamous cell carcinoma cell lines resulted in a marked decrease in tumorigenicity and undifferentiated tumor cells in vivo. In vitro, knockdown of HTR7 promoted cell differentiation. Furthermore, knockdown of G12, a G protein downstream of HTR7 signaling, also promoted cell differentiation. These results indicate that HTR7 contributes to the progression of squamous cell carcinoma by suppressing cell differentiation through G12 signaling.

Academic Significance and Societal Importance of the Research Achievements

臨床における有効な扁平上皮癌の治療法は限られており、さらなる新規治療法の開発が望まれる。本研究においては、セロトニン受容体HTR7が扁平上皮癌の分化を抑制することで、悪性腫瘍の進展に関わっていることが明らかとなった。HTR7はすでに多くのアンタゴニストが開発されている受容体でおり、本研究の成果により、これらHTR7に対するアンタゴニストが扁平上皮癌に対する新規治療薬として応用できる可能性が示された。

Report

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

    (11 results)

All 2022 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (7 results)

  • [Journal Article] MEK inhibition suppresses metastatic progression of <i>KRAS</i> ‐mutated gastric cancer2022

    • Author(s)
      Yamasaki Juntaro、Hirata Yuki、Otsuki Yuji、Suina Kentaro、Saito Yoshiyuki、Masuda Kenta、Okazaki Shogo、Ishimoto Takatsugu、Saya Hideyuki、Nagano Osamu
    • Journal Title

      Cancer Science

      Volume: 113 Issue: 3 Pages: 916-925

    • DOI

      10.1111/cas.15244

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oncogenic transformation of NIH/3T3 cells by the overexpression of L-type amino acid transporter 1, a promising anti-cancer target.2021

    • Author(s)
      Hayashi N, Yamasaki A, Ueda S, Okazaki S, Ohno Y, Tanaka T, Endo Y, Tomioka Y, Masuko K, Masuko T, Sugiura R.
    • Journal Title

      Oncotarget

      Volume: 12 Issue: 13 Pages: 1256-1270

    • DOI

      10.18632/oncotarget.27981

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Antitumor effects of novel mAbs against cationic amino acid transporter 1 (CAT1) on human CRC with amplified CAT1 gene2021

    • Author(s)
      Okita K, Hara Y, Okura H, Hayashi H, Sasaki Y, Masuko S, Kitadai E, Masuko K, Yoshimoto S, Hayashi N, Sugiura R, Endo Y, Okazaki S, Arai S, Yoshioka T, Matsumoto T, Makino Y, Komiyama H, Sakamoto K, Masuko T.
    • Journal Title

      Cancer Sci.

      Volume: 112 Issue: 2 Pages: 563-574

    • DOI

      10.1111/cas.14741

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Inhibitor of Apoptosis Protein Livin Confers Resistance to Fas-Mediated Immune Cytotoxicity in Refractory Lymphoma2020

    • Author(s)
      Sugihara Eiji、Hashimoto Norisato、Osuka Satoru、Shimizu Takatsune、Ueno Sayaka、Okazaki Shogo、Yaguchi Tomonori、Kawakami Yutaka、Kosaki Kenjiro、Sato Taka-Aki、Okamoto Shinichiro、Saya Hideyuki
    • Journal Title

      Cancer Research

      Volume: 80 Issue: 20 Pages: 4439-4450

    • DOI

      10.1158/0008-5472.can-19-3993

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Serotonin receptor HTR7 regulates differentiation in oral squamous cell carcinoma.2021

    • Author(s)
      Yuki Nakano, Ryo Goitsuka, Osamu Nagano, Hideyuki Saya, Shogo Okazaki
    • Organizer
      第80回日本癌学 会学術総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Transcription factor FOXA1 is a negative regulator for xCT-dependent tumor formation in oral cancer.2021

    • Author(s)
      Shogo Okazaki, Yuki Nakano, Momoko Yoshikawa, Tomoya Soma, Seiji Asoda, Ryo Goitsuka, Hideyuki Saya, Osamu Nagano
    • Organizer
      第80回日本癌学 会学術総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 胎児期に発生・分化する RAG2発現履歴のある自然免疫細胞2021

    • Author(s)
      藤崎桂子、竹田深山、都留雅子、岡崎章悟、後飯塚僚
    • Organizer
      第30回Kyoto T Cell Conference
    • Related Report
      2021 Annual Research Report
  • [Presentation] Postnatal behavior of fetal lymphoid cells identified with a novel Rag2 lineage tracing system.2021

    • Author(s)
      Keiko Fujsiaki, Miyama Takeda, Masako Tsuru, Shogo Okazaki, Shuhei Ogawa, Seiya Mizuno, Satoru Takahashi and Ryo Goitsuka
    • Organizer
      第50 回日本免疫学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The novel cell fate tracing system for fetal lymphoid cells with a history of Rag2 expression.2021

    • Author(s)
      Miyama Takeda, Keiko Fujisaki, Masako Tsuru, Shogo Okazaki, Shuhei Ogawa, Seiya Mizuno, Satoru Takahashi and Ryo Goitsuka
    • Organizer
      第50 回日本免疫学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Functional analysis of serotonin receptor HTR7 in oral squamous cell carcinoma2020

    • Author(s)
      中野 友暉、後飯塚 僚、永野 修、佐谷 秀行、岡崎 章悟
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Role of FOXA1 in the progression of oral squamous cell carcinoma and xCT inhibitor sensitivity2020

    • Author(s)
      岡崎 章悟、中野 友暉、後飯塚 僚、佐谷 秀行、永野 修
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi