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Toxicological and physiological significance of AADAC

Research Project

Project/Area Number 19K07082
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47030:Pharmaceutical hygiene and biochemistry-related
Research InstitutionKanazawa University

Principal Investigator

Fukami Tatsuki  金沢大学, 薬学系, 准教授 (00532300)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords薬物代謝 / 脂質代謝 / 加水分解 / 加水分解酵素 / 薬物動態 / 毒性発現 / プロドラッグ
Outline of Research at the Start

加水分解酵素アリルアセタミドデアセチラーゼ (AADAC)は様々な医薬品の脱アセチル化反応を触媒する。一方、医薬品、環境物質、食事由来成分や内因性化合物は、体内でN-アセチル基転移酵素(NAT)によりアセチル化されることでその性質が大きく変化する。これまでアセチル化反応を触媒するNATに注目され研究がなされてきたが、脱アセチル化を触媒するAADACもアセチル体の生成程度に寄与すると考え、AADACの機能解明により外因および内因性化合物の脱アセチル化を介した体内動態変化を理解し、毒性学的および病理学的意義を明らかにすることで、創薬および疾病治療に有益な基盤情報を構築する。

Outline of Final Research Achievements

Arylacetamide deacetylase (AADAC) has been recognized as a drug-hydrolyzing enzyme. In this study, the preference of human AADAC for the hydrolysis of drugs containing acetyl group was clarified using eslicarbazepine acetate and abiraterone acetate. In addition, the acetylated metabolites of some N-acetyltransferase (NAT) substrates were hydrolyzed by AADAC. In fact, when nitrazepam was orally treated, the plasma concentration of N-acetylaminonitrazepam, which is produced by NAT, in Aadac knockout mice was higher than that in wild-type mice.
In addition to drug metabolism, AADAC is likely involved in the metabolism of endogenous compounds. When fatty acids were treated with cells, in where AADAC is overexpressed or knocked down, intracellular lipid accumulation was attenuated or increased, respectively. In treatment of high fat diet, Aadac knockout mice showed the higher plasma lipids including cholesterol than wild-type mice. Thus, AADAC would be involved in the lipid homeostasis.

Academic Significance and Societal Importance of the Research Achievements

臨床で使用されている医薬品の約10%は加水分解されることで薬効を失ったり、獲得したりするだけでなく、毒性を発揮する原因物質が生成される場合もある。医薬品の多くはカルボキシルエステラーぜにより加水分解されるとされてきたが、近年開発された医薬品ではアリルアセタミドデアセチラーゼ (AADAC)により加水分解されるものも散見される。AADACの基質認識性や薬物動態に与える影響の解明は医薬品の開発および適正使用にて重要な情報源となる。また、AADACが脂質代謝に関与することも初めて実験学的に明らかにした。現在、生活習慣病の罹患者が増えていることからも、AADACの機能解明は大きな意味を持つ。

Report

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

    (10 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Arylacetamide deacetylase knockout mice are sensitive to ketoconazole-induced hepatotoxicity and adrenal insufficiency2022

    • Author(s)
      Nagaoka Mai、Fukami Tatsuki、Kisui Fumiya、Yamada Takuya、Sakai Yoshiyuki、Tashiro Kiyomichi、Ogiso Takuo、Konishi Keigo、Honda Shiori、Hirosawa Keiya、Nakano Masataka、Nakajima Miki
    • Journal Title

      Biochemical Pharmacology

      Volume: 195 Pages: 114842-114842

    • DOI

      10.1016/j.bcp.2021.114842

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] PPARα regulates the expression of human arylacetamide deacetylase involved in drug hydrolysis and lipid metabolism2022

    • Author(s)
      Morikawa Tomomi、Fukami Tatsuki、Gotoh-Saito Saki、Nakano Masataka、Nakajima Miki
    • Journal Title

      Biochemical Pharmacology

      Volume: 199 Pages: 115010-115010

    • DOI

      10.1016/j.bcp.2022.115010

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of Human Arylacetamide Deacetylase (AADAC) on Hydrolysis of Eslicarbazepine Acetate and Effects of <i>AADAC</i> Genetic Polymorphisms on Hydrolase Activity2021

    • Author(s)
      Hirosawa Keiya、Fukami Tatsuki、Tashiro Kiyomichi、Sakai Yoshiyuki、Kisui Fumiya、Nakano Masataka、Nakajima Miki
    • Journal Title

      Drug Metabolism and Disposition

      Volume: 49 Issue: 4 Pages: 322-329

    • DOI

      10.1124/dmd.120.000295

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Arylacetamide deacetylase as a determinant of the hydrolysis and activation of abiraterone acetate in mice and humans2021

    • Author(s)
      Sakai Yoshiyuki、Fukami Tatsuki、Nagaoka Mai、Hirosawa Keiya、Ichida Hiroyuki、Sato Rei、Suzuki Kohei、Nakano Masataka、Nakajima Miki
    • Journal Title

      Life Sciences

      Volume: 284 Pages: 119896-119896

    • DOI

      10.1016/j.lfs.2021.119896

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 薬物動態および毒性の理解促進のための薬物代謝酵素基礎的知見2021

    • Author(s)
      深見達基、中島美紀
    • Organizer
      日本薬物動態学会 第36回年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Aadacノックアウトマウスを用いたケトコナゾールによる毒性発症メカニズムの解明2021

    • Author(s)
      長岡茉唯、深見達基、亀水文弥、山田卓也、酒井慶之、田代精亨、小木曽巧朗、小西慶吾、本多栞、廣澤啓也、中野正隆、中島美紀
    • Organizer
      第48回日本毒性学会学術年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 薬物加水分解酵素AADACのPPARalphaを介した転写制御および脂質代謝に対する役割2021

    • Author(s)
      森川朋美、深見達基、中野正隆、中島美紀
    • Organizer
      日本薬学会北陸支部第133回例会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アビラテロン酢酸エステルの薬理活性体への代謝におけるアリルアセタミドデアセチラーゼの役割2021

    • Author(s)
      酒井慶之、深見達基、長岡茉唯、廣澤啓也、市田裕之、佐藤怜、鈴木康平、中野正隆、中島美紀
    • Organizer
      日本薬学会第141年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Role of human AADAC on hydrolysis of eslicarbazepine acetate and effects of AADAC genetic polymorphisms on hydrolase activity2020

    • Author(s)
      廣澤啓也、深見達基、田代精亨、酒井慶之、亀水文弥、中野正隆、中島美紀
    • Organizer
      第35回日本薬物動態学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Toxicological relevance of non-P450 enzymes: hydrolases and aldehyde oxidase2019

    • Author(s)
      Tatsuki Fukami
    • Organizer
      12th International ISSX Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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

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