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Combined genetic analyses can achieve efficient diagnostic yields for subjects with Alagille syndrome

Research Project

Project/Area Number 17K11516
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pediatric surgery
Research InstitutionNagoya City University

Principal Investigator

Sugiura Tokio  名古屋市立大学, 医薬学総合研究院(医学), 研究員 (10381881)

Co-Investigator(Kenkyū-buntansha) 戸川 貴夫  名古屋市立大学, 医薬学総合研究院(医学), 助教 (10792814)
田井中 貴久  名古屋大学, 医学部附属病院, 病院講師 (30378195)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsアラジール症候群 / 胆道閉鎖症 / 次世代シーケンサー / マイクロアレイCGH / MLPA解析 / マイクロアレイCGH解析 / 次世代シークエンサー / 早期鑑別システム
Outline of Final Research Achievements

We evaluated combined genetic analyses with targeted next-generation sequencing
(NGS), multiplex ligation probe amplification (MLPA) of Jagged1 (JAG1) genes and
microarray comparative genomic hybridisation (CGH) in subjects with Alagille syndrome,incomplete clinical features of Alagille syndrome and biliary atresia. We analysed 30 subjects with Alagille syndrome, nine with incomplete Alagille syndrome and 17 with biliary atresia and detected pathogenic mutations in JAG1 or NOTCH2 in 24/30 subjects with Alagille syndrome and in 4/9 subjects with incomplete Alagille syndrome. No pathogenic mutations were detected in subjects with biliary atresia. The frequency of JAG1 mutations was as follows: single nucleotide variants (51.9%), small insertion or deletion (29.6%) and gross deletion (18.5%). Combined genetic analyses achieved efficient diagnostic yields for subjects with Alagille syndrome and incomplete Alagille syndrome.

Academic Significance and Societal Importance of the Research Achievements

胆道閉鎖症とアラジール症候群の鑑別は難しい。胆道閉鎖症では、生後2 ヶ月以内の葛西手術が必要となる。一方、アラジール症候群では、葛西手術を施行すると予後が悪化する可能性がある。
我々はアラジール症候群の責任遺伝子であるJAG1 とNOTCH2 を含めた既知の原因遺伝子18個を搭載する遺伝子解析パネルを作成した。さらにMLPA、CGHアレイを組合せた包括的遺伝子解析により、胆道閉鎖症とアラジール症候群の早期鑑別システムを確立した。
胆道閉鎖症とアラジール症候群の早期鑑別に遺伝子解析は有用である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (12 results)

All 2018 2017

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Antiviral therapy for hepatitis B virus during second pregnancies2018

    • Author(s)
      Wakano Y, Sugiura T, Endo T, Ito K, Suzuki M, Tajiri H, Tanaka Y, Saitoh S.
    • Journal Title

      J Obstet Gynaecol Res

      Volume: 44 Issue: 3 Pages: 566-569

    • DOI

      10.1111/jog.13540

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Neurodevelopmental outcomes at 3 years old for infants with birth weights under 500 g.2018

    • Author(s)
      Nagara S, Kouwaki M, Togawa T, Sugiura T, Okada M, Koyama N.
    • Journal Title

      Pediatr Neonatol.

      Volume: 59 Issue: 3 Pages: 274-280

    • DOI

      10.1016/j.pedneo.2017.09.005

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clinical, Pathologic, and Genetic Features of Neonatal Dubin-Johnson Syndrome: A Multicenter Study in Japan.2018

    • Author(s)
      Togawa T, Tatsuki Mizuochi, Tokio Sugiura, Hironori Kusano, Ken Tanikawa, Takato Sasaki, Fumio Ichinose, Seiichi Kagimoto, Takahisa Tainaka, Hiroo Uchida, Shinji Saitoh
    • Journal Title

      The Journal of Pediatrics

      Volume: - Pages: 161-167

    • DOI

      10.1016/j.jpeds.2017.12.058

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 内耳髄液漏により肺炎球菌性髄膜炎を4回繰り返した幼児例2018

    • Author(s)
      田中元、杉浦時雄、須田裕一郎、渡部珠生、河辺義和、吉田忠雄
    • Journal Title

      小児科臨床

      Volume: 71 Pages: 1071-1076

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Combined genetic analyses can achieve efficient diagnostic yields for subjects with Alagille syndrome and incomplete Alagille syndrome.2017

    • Author(s)
      Ohashi K, Togawa T, Sugiura T, Ito K, Endo T, Aoyama K, Negishi Y, Kudo T, Ito R, Saitoh S.
    • Journal Title

      Acta Paediatr.

      Volume: 106 Issue: 11 Pages: 1717-1824

    • DOI

      10.1111/apa.13981

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 高ウイルス量妊婦への核酸アナログ投与によるB型肝炎ウイルス母子感染予防2018

    • Author(s)
      杉浦時雄、遠藤剛、伊藤孝一、齋藤伸治、田中靖人、高野智子、田尻仁、三善陽子、鈴木光幸
    • Organizer
      第272回日本小児科学会東海地方会
    • Related Report
      2018 Research-status Report
  • [Presentation] 高ウイルス量妊婦への核酸アナログ投与によるB型肝炎ウイルス母子感染予防2017

    • Author(s)
      杉浦時雄, 遠藤 剛, 伊藤 孝一, 齋藤 伸治, 田中 靖人, 高野 智子, 田尻 仁, 鈴木 光幸
    • Organizer
      第53回日本肝臓学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 高ウイルス量妊婦への核酸アナログ投与によるB型肝炎ウイルス母子感染予防2017

    • Author(s)
      杉浦時雄, 遠藤 剛, 伊藤 孝一, 齋藤 伸治, 田中 靖人, 高野 智子, 田尻 仁, 鈴木 光幸
    • Organizer
      第34回日本小児肝臓研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] HTLV-1(human T-cell leukemia virus type1)非流行地域における偽陽性の問題2017

    • Author(s)
      杉浦時雄, 伊藤孝一、加藤丈典、齋藤伸治
    • Organizer
      第53回日本周産期・新生児医学会学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 見逃さないで!胆汁うっ滞2017

    • Author(s)
      杉浦時雄
    • Organizer
      第19回京都MEK研究会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] アラジール症候群と胆道閉鎖症に対する体系的遺伝学的解析2017

    • Author(s)
      杉浦時雄, 大橋圭、戸川貴夫、伊藤孝一、遠藤剛、齋藤伸治
    • Organizer
      第44回日本小児栄養消化器肝臓学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Antiviral therapy during pregnancy successfully prevented mother-to-child transmission of hepatitis B virus infection.2017

    • Author(s)
      Sugiura T, Endo T, Ito K, Suzuki M, Tajiri H, Tanaka Y, Saitoh S
    • Organizer
      North American Society for Pediatric Gastroenterology, Hepatology and Nutrition
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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