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Molecular and functional analysis of HSD 10 disease

Research Project

Project/Area Number 19K17959
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54040:Metabolism and endocrinology-related
Research InstitutionGifu University

Principal Investigator

Sasai Hideo  岐阜大学, 大学院医学系研究科小児科学, 助教 (20509781)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsHSD10病 / 先天代謝異常症 / ケトン体 / 17β-hydroxysteroid / ケトン体代謝異常症
Outline of Research at the Start

HSD10病は稀なX連鎖劣性遺伝形式の先天代謝異常症であり、重症例では神経退行をきたし予後不良である。これまで、本邦での3症例全例を当教室で診断した。同じHSD10病でも遺伝子変異の種類によって臨床像に非常に大きな差異があり、その差がどの機能の異常によるのかまだ明らかでないことが多い。今回、本邦症例で同定されたHSD10病の変異タンパクの機能を解析することで、臨床的重症度と変異タンパクの機能障害にどのような関連があるのかを明らかにする。

Outline of Final Research Achievements

In order to establish a molecular biological analysis method for HSD10 disease, we proceeded with the functional analysis of HSD10 protein (HSD17B10) using the protein expression system in E. coli using pET28a established in a previous study. The enzymatic activity of HSD10 in the isoleucine-metabolizing system can be evaluated more quickly and easily, and the difference between wild-type and pathological mutations (severe and mild cases) can be analyzed by purified protein. In addition, to establish a system for measuring the activity of 17β-hydroxysteroid dehydrogenase in the mitochondrial cholesterol metabolism system using an absorption spectrophotometer, we will optimize the system by changing the reaction conditions. We also succeeded in co-expressing HSD10 and MRPP1 using the pET Duet vector to evaluate the relationship with MRPP1 protein, which is an important component.

Academic Significance and Societal Importance of the Research Achievements

申請者らはこれまで、ケトン体代謝異常症の遺伝子解析や機能評価を継続して行ってきた。そして、当教室において、国内初のHSD10病の幼児例を含む本症3症例を明らかにしており、国内での解析を精力的に実施している。HSD10病の中でも、重症例と軽症例では臨床症状には大きな差異がある。HSD10病の詳しい病態や長期予後は不明な部分が多く、治療法も確立していない。本研究の結果は国内外問わず学術的にも臨床的にも大きな意味があるものと考えている。

Report

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

    (13 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Book (4 results)

  • [Journal Article] Novel HADHB mutations in a patient with mitochondrial trifunctional protein deficiency2020

    • Author(s)
      Nakama Mina、Sasai Hideo、Kubota Mitsuru、Hasegawa Yuki、Fujiki Ryoji、Okuyama Torayuki、Ohara Osamu、Fukao Toshiyuki
    • Journal Title

      Human Genome Variation

      Volume: 7 Issue: 1

    • DOI

      10.1038/s41439-020-0097-z

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deficiency of 3‐hydroxybutyrate dehydrogenase (BDH1) in mice causes low ketone body levels and fatty liver during fasting2020

    • Author(s)
      Otsuka Hiroki、Kimura Takeshi、Ago Yasuhiko、Nakama Mina、Aoyama Yuka、Abdelkreem Elsayed、Matsumoto Hideki、Ohnishi Hidenori、Sasai Hideo、Osawa Masatake、Yamaguchi Seiji、Mitchell Grant A.、Fukao Toshiyuki
    • Journal Title

      Journal of Inherited Metabolic Disease

      Volume: 43 Issue: 5 Pages: 960-968

    • DOI

      10.1002/jimd.12243

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Japanese patients with mitochondrial 3-hydroxy-3-methylglutaryl-CoA synthase deficiency: <em>In vitro</em> functional analysis of five novel <em>HMGCS2</em> mutations2020

    • Author(s)
      Ago Yasuhiko、Otsuka Hiroki、Sasai Hideo、Abdelkreem Elsayed、Nakama Mina、Aoyama Yuka、Matsumoto Hideki、Fujiki Ryoji、Ohara Osamu、Akiyama Kazumasa、Fukui Kaori、Watanabe Yoriko、Nakajima Yoko、Ohnishi Hidenori、Ito Tetsuya、Fukao Toshiyuki
    • Journal Title

      Experimental and Therapeutic Medicine

      Volume: 20 Issue: 5 Pages: 1-1

    • DOI

      10.3892/etm.2020.9166

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 高ケトン、低ケトン血症からみつける先天代謝異常.2020

    • Author(s)
      笹井 英雄
    • Organizer
      日本先天代謝異常学会セミナー(第16回)
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] わが国での新規対象疾患の選定基準を策定する上での論点について考える; 指標の感度や特異度が十分でない疾患.2020

    • Author(s)
      笹井 英雄
    • Organizer
      日本マススクリーニング学会学術集会(第47回)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Summary of 5-year gene panel study for target inherited metabolic diseases in newborn screening -fatty acid oxidation defects-2019

    • Author(s)
      Sasai H, Ago Y, Matsumoto H, Otsuka H, Hosokawa J, Fujiki R, Ohara O, Nakajima Y, Ito T, Hara K, Kobayashi M, Tajima G, Ichinoi N, Sakamoto O, Jun K, Matsumoto S, Nakamura K, Hamazaki T, Kobayashi H, Hasegawa Y, Fukao T
    • Organizer
      The 6th Annual International Network for Fatty Acid Oxidation Research and Management symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Summary of 5-year gene panel study for target inherited metabolic diseases in newborn screening2019

    • Author(s)
      Sasai H, Ago Y, Matsumoto H, Otsuka H, Hosokawa J, Fujiki R, Ohara O, Nakajima Y, Ito T, Hara K, Kobayashi M, Tajima G, Ichinoi N, Sakamoto O, Jun K, Matsumoto S, Nakamura K, Hamazaki T, Kobayashi H, Hasegawa Y, Fukao T
    • Organizer
      Annual symposium of the society for the study of inborn errors of metabolism 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 新生児マススクリーニング対象先天代謝異常症に対する遺伝子パネル解析の5年間のまとめ2019

    • Author(s)
      笹井英雄、吾郷耕彦、松本英樹、大塚博樹、細川淳一、藤木亮次、小原收、中島葉子、伊藤哲哉、小林弘典、長谷川有紀、原圭一、小林正 久、但馬剛、市野井奈津子、城戸淳、松本志郎、中村公俊、濱崎孝史、深尾敏幸
    • Organizer
      日本先天代謝異常学会総会(第61回)
    • Related Report
      2019 Research-status Report
  • [Presentation] HSD17B10タンパクを用いたHSD10病の酵素活性測定2019

    • Author(s)
      笹井英雄、吾郷耕彦、松本英樹、赤川翔平、秋葉和壽、長谷川行洋、小林正久、仲間美奈、青山友佳、深尾敏幸
    • Organizer
      日本先天代謝異常学会総会(第61回)
    • Related Report
      2019 Research-status Report
  • [Book] 小児科診療 2021 Vol.84 No.2 「確定検査:遺伝子解析を中心に」2021

    • Author(s)
      笹井 英雄
    • Total Pages
      7
    • Publisher
      診断と治療社
    • Related Report
      2020 Annual Research Report
  • [Book] 小児科診療 2021 Vol.84 No.2 「ケトン体代謝異常症」2021

    • Author(s)
      笹井 英雄
    • Total Pages
      7
    • Publisher
      診断と治療社
    • Related Report
      2020 Annual Research Report
  • [Book] 今日の小児治療指針(第17版) 「ミトコンドリアβ酸化異常症」2020

    • Author(s)
      笹井 英雄
    • Total Pages
      2
    • Publisher
      医学書院
    • Related Report
      2020 Annual Research Report
  • [Book] よくわかる新生児マススクリーニングガイドブック(山口清次 編) 「HSD10病」2019

    • Author(s)
      笹井 英雄, 深尾 敏幸
    • Total Pages
      2
    • Publisher
      診断と治療社
    • ISBN
      9784787823892
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2022-01-27  

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