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Elucidation of the mechanism for the chemical substances such as polychlorinated biphenyls induced decrease in the serum thyroxine level

Research Project

Project/Area Number 18K11660
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 63030:Chemical substance influence on environment-related
Research InstitutionTokushima Bunri University

Principal Investigator

KATO Yoshihisa  徳島文理大学, 薬学部, 教授 (90161132)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords甲状腺ホルモン撹乱 / サイロキシン / polychlorinated biphenyl / phenobarbital / 肝臓 / グルクロン酸抱合酵素 / ラット / PCB / トランスポーター / マウス / Oatp2 / トランスサイレチン / TTRノックアウトマウス / Kanechlor-500 / 甲状腺ホルモン / 化学物質
Outline of Final Research Achievements

The present studies indicate that Kanechlor-500 (KC500)-mediated decrease in serum thyroxine (T4) level occurs in a transthyretin (TTR)-unrelated manner and further suggest that KC500-promoted T4 accumulation in the liver occurs through the development of liver hypertrophy and the promotion of T4 transportation from serum to liver. The present studies demonstrate that the decrease in serum total T4 level by phenobarbital (PB) in Gunn rats is not dependent on the increase in hepatic UDP-glucuronosyltransferase (T4-UDP-GT) activity and suggest that even in Wistar rats, the PB-induced decrease in serum T4 level dose not occur only through increase in hepatic T4-UDP-GT. The present studies suggest that PB-mediated increase in hepatic T4 accumulation occurs, at least in part, through the increase in the expression of hepatic T4-transporters, such as Oatp2.

Academic Significance and Societal Importance of the Research Achievements

本研究は、ヒトを含む多くの動物種に対する内分泌系への影響が懸念されているPCBおよびフェノバルビタールなどの化学物質の甲状腺ホルモン撹乱作用、特に血中甲状腺ホルモン濃度の低下作用発現に関する新規メカニズムを解明し、T4濃度低下作用メカニズムの本質となるT4の肝臓への蓄積メカニズムの実体解析を試みた点において、学術的に意義深い研究であると考えられる。本研究の成果は、血中甲状腺ホルモン濃度の低下作用を誘発するPCBなどの化学物質の毒性に対する安全性対策、医薬品(フェノバルビタールなど)のリスク評価や副作用の回避に応用できることから社会的に価値ある研究であると考えられる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019 2018 Other

All Journal Article (8 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] 2,2',4,4',6,6'-六塩素化ビフェニル(PCB155)のラット、モルモットおよびヒト肝ミクロゾーム、およびヒトチトクロムP450による代謝2021

    • Author(s)
      太田千穂、加藤善久、藤井由希子、原口浩一、木村 治、古賀信幸
    • Journal Title

      福岡医学雑誌

      Volume: 112 Pages: 127-135

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Perfluorinated carboxylic acids in edible clams: A possible exposure source of perfluorooctanoic acid for Japanese population2020

    • Author(s)
      Fujii Yukiko、Harada Kouji H.、Nakamura Tsubasa、Kato Yoshihisa、Ohta Chiho、Koga Nobuyuki、Kimura Osamu、Endo Tetsuya、Koizumi Akio、Haraguchi Koichi
    • Journal Title

      Environmental Pollution

      Volume: 263 Pages: 114369-114369

    • DOI

      10.1016/j.envpol.2020.114369

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of perfluoroalkyl carboxylic acids on the uptake of sulfobromophthalein via organic anion transporting polypeptides in human intestinal Caco-2 cells2020

    • Author(s)
      Kimura Osamu、Fujii Yukiko、Haraguchi Koichi、Kato Yoshihisa、Ohta Chiho、Koga Nobuyuki、Endo Tetsuya
    • Journal Title

      Biochemistry and Biophysics Reports

      Volume: 24 Pages: 100807-100807

    • DOI

      10.1016/j.bbrep.2020.100807

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Kanechlor 500-mediated changes in serum and hepatic thyroxine levels primarily occur in a transthyretin-unrelated manner2019

    • Author(s)
      Kato Y, Tamaki S, Haraguchi K, Ikushiro S, Fujii Y, Ohta C, Atobe K, Kimura O, Endo T, Koga N, Yamada S, Degawa M
    • Journal Title

      Journal of Applied Toxicology

      Volume: 39 Issue: 12 Pages: 1701-1709

    • DOI

      10.1002/jat.3895

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 2,2',3,4',5,6,6'-七塩素化ビフェニル(CB188)のラットおよびモルモット肝ミクロゾームによる代謝2019

    • Author(s)
      太田千穂、山本健太、加藤善久、藤井由希子、原口浩一、木村 治、遠藤哲也、古賀信幸
    • Journal Title

      福岡医学雑誌

      Volume: 110 Pages: 83-90

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Levels and profiles of long-chain perfluoroalkyl carboxylic acids in Pacific cod from 14 sites in the North Pacific Ocean2019

    • Author(s)
      Fujii Yukiko、Tuda Hayato、Kato Yoshihisa、Kimura Osamu、Endo Tetsuya、Harada Kouji H.、Koizumi Akio、Haraguchi Koichi
    • Journal Title

      Environmental Pollution

      Volume: 247 Pages: 312-318

    • DOI

      10.1016/j.envpol.2019.01.006

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Polychlorinated biphenylsによる血中甲状腺ホルモン濃度低下作用機構の解明:動物種差2018

    • Author(s)
      加藤善久
    • Journal Title

      Endocrine Disrupter News Letter

      Volume: 21-2 Pages: 4-4

    • Related Report
      2018 Research-status Report
  • [Journal Article] Different profiles of naturally produced and anthropogenic organohalogens in the livers of cetaceans from the Sea of Japan and the North Pacific Ocean2018

    • Author(s)
      Fujii Yukiko、Kato Yoshihisa、Kozai Mai、Matsuishi Takashi、Harada Kouji H.、Koizumi Akio、Kimura Osamu、Endo Tetsuya、Haraguchi Koichi
    • Journal Title

      Marine Pollution Bulletin

      Volume: 136 Pages: 230-242

    • DOI

      10.1016/j.marpolbul.2018.08.051

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 2,2',4,4',5,6'-六塩素化ビフェニル(PCB154)のラット肝ミクロゾームによる代謝2022

    • Author(s)
      太田千穂、藤井由希子、原口 浩一、加藤善久、木村治、古賀信幸
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] エビ可食部中の有機フッ素化合物濃度2021

    • Author(s)
      宮武雅将、明田旬平、藤井由希子、跡部一孝、原口浩一、加藤善久
    • Organizer
      第60回日本薬学会・日本薬剤師会・日本病院薬剤師会中国四国支部学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2,2’,4,4’,6,6’-六塩素化ビフェニル(PCB155)のヒト肝ミクロゾームおよびチトクロムP450分子種による代謝2021

    • Author(s)
      太田千穂,加藤善久,藤井由希子,原口浩一,木村治,遠藤哲也,古賀信幸
    • Organizer
      日本薬学会第141年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 2,2',4,4',6,6'-六塩素化ビフェニル(PCB155)の動物肝ミクロゾームによる代謝2020

    • Author(s)
      太田 千穂,加藤 善久,原口 浩一,藤井 由希子,木村 治,遠藤 哲也,古賀 信幸
    • Organizer
      日本薬学会第140年会
    • Related Report
      2020 Research-status Report 2019 Research-status Report
  • [Presentation] レスベラトロール封入リポソームの調製法についての検討2020

    • Author(s)
      跡部 一孝、長尾 知佳、加藤 善久
    • Organizer
      日本薬学会第140年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Seafood in lower trophic level is a possible source of human dietary exposure: perfluorinated carboxylic acids in Manila clam (Ruditapes philippinarum) in Japan2019

    • Author(s)
      Fujii Y., Nakamura T., Harada K.H., Kato Y., Ohta C., Koga N., Kimura O., Endo T., Koizumi A., Haraguchi K.
    • Organizer
      39th International Symposium on Halogenated Persistent Organic Pollutants
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 医薬品や化学物質による血中甲状腺ホルモン濃度低下作用機構の薬物動態学的解明2019

    • Author(s)
      加藤善久
    • Organizer
      中村学園大学大学院栄養科学研究科博士後期課程講演会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] PCBによる血中甲状腺ホルモン濃度低下作用機構の解明2018

    • Author(s)
      加藤善久
    • Organizer
      環境ホルモン学会第32回講演会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Involvement of transthyretin to Kanechlor-500-mediated changes in serum and hepatic thyroxine levels in mice.2018

    • Author(s)
      Kato Y., Tamaki S., Haraguchi K., Fujii Y., Kimura O., Ohta C., Endo T., Koga N., Degawa M.
    • Organizer
      38th International Symposium on Halogenated Persistent Organic Pollutants
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Human exposure to brominated phenoxy phenols: seaweeds as source of hydroxylated and methoxylated PBDEs in Asia-Pacific.2018

    • Author(s)
      Haraguchi K., Fujii Y., Ohta C., Koga N., Kimura O., Endo T., Kato Y.
    • Organizer
      38th International Symposium on Halogenated Persistent Organic Pollutants
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] In vitro metabolism of 2,2',3,4',5,6,6'-heptachlorobiphenyl (CB188) by rat liver microsomes.2018

    • Author(s)
      Ohta C., Yamamoto K., Fujii Y., Haraguchi K., Kimura O., Endo T., Kato Y., Koga N.
    • Organizer
      38th International Symposium on Halogenated Persistent Organic Pollutants
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Remarks] 徳島文理大学香川薬学部薬物動態学講座

    • URL

      http://kp.bunri-u.ac.jp/kph17/index.html

    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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