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Comprehensive genetic analysis in pediatric acute myeloid leukemia to elucidate the clinical significance of genes on chromosome 7.

Research Project

Project/Area Number 21K20937
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0904:Internal medicine of the bio-information integration and related fields
Research InstitutionGunma Institute of Public Health and Environmental Sciences

Principal Investigator

Kaburagi Taeko  群馬県衛生環境研究所, 研究企画係, 研究員 (20907084)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords小児 / 急性骨髄性白血病 / パネルシーケンス / 7番染色体 / KMT2C / 7番染色体
Outline of Research at the Start

小児急性骨髄性白血病(AML)の長期生存率は、様々な分子生物学的異常と予後との関連が明らかとなり、層別化治療が進んだことで向上している。一方、既知の予後因子を有さず中間リスク群と扱われる一部には再発難治例が存在し、より詳細な予後因子の解明が求められている。本研究では予後不良因子であるmonosomy 7に着目し、7番染色体上のいずれかの遺伝子異常が小児AMLにおいて重要な予後因子となる可能性を考え、日本小児白血病リンパ腫研究グループAML-05研究症例に対してパネルシーケンスを施行し、臨床的意義のある遺伝子の同定を目指すとともに、それらの臨床的特徴や他の分子生物学的異常との関連を検証する。

Outline of Final Research Achievements

Identification of novel prognostic factors is urgently needed to improve the prognosis of pediatric acute myeloid leukemia (AML). We focused on monosomy 7 and deletion of the long arm of chromosome 7[del(7q)], which are representative chromosomal abnormalities in AML, and performed mutation analysis and copy number analysis of genes on chromosome 7 using next-generation sequencing to verify their clinical significance. Monosomy 7 was significantly associated with poor prognosis, while del(7q) was not associated with prognosis. MECOM high expression was significantly more common in monosomy 7 but not in del(7q), suggesting that monosomy 7 and del(7q) have different molecular biological backgrounds. As for genetic mutations on the long arm of chromosome 7, patients with KMT2C mutations had a significantly poorer prognosis, suggesting that KMT2C mutations may be an important prognostic factor in pediatric AML.

Academic Significance and Societal Importance of the Research Achievements

小児急性骨髄性白血病(AML)において、これまでもmonosomy 7と7番染色体長腕欠損[del(7q)]は着目され、それらの共通欠失領域に重要な遺伝子が存在することが考えられてきたが、いまだに責任遺伝子の同定には至っていない。本研究ではmonosomy 7と7番染色体長腕欠損[del(7q)]の予後が異なり、背景としてmonosomy 7にはMECOM高発現の合併が多い一方、del(7q)には少ないなど、分子生物学的背景が大きく異なることが考えられた。これらは7番染色体上にはMonosomy 7やdel(7q)の共通欠失領域以外に重要な因子がある可能性を示唆する新たな知見と考えられた。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (11 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] UBTF-internal tandem duplication as a novel poor prognostic factor in pediatric acute myeloid leukemia.2023

    • Author(s)
      Kaburagi T, Shiba N, Yamato G, Yoshida K, Tabuchi K, Ohki K, Ishikita E, Hara Y, Shiraishi Y, Kawasaki H, Sotomatsu M, Takizawa T, Taki T, Kiyokawa N, Tomizawa D, Horibe K, Miyano S, Taga T, Adachi S, Ogawa S, Hayashi Y.
    • Journal Title

      Genes Chromosomes Cancer

      Volume: 62 Issue: 4 Pages: 202-209

    • DOI

      10.1002/gcc.23110

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] TP53 and RB1 alterations characterize poor prognostic subgroups in pediatric acute myeloid leukemia.2023

    • Author(s)
      Hara Y, Shiba N, Yoshida K, Yamato G, Kaburagi T, Shiraishi Y, Ohki K, Shiozawa Y, Kawamura M, Kawasaki H, Sotomatsu M, Takizawa T, Matsuo H, Shimada A, Kiyokawa N, Tomizawa D, Taga T, Ito E, Horibe K, Miyano S, Adachi S, Taki T, Ogawa S, Hayashi Y.
    • Journal Title

      Genes Chromosomes Cancer

      Volume: 62 Issue: 7 Pages: 412-422

    • DOI

      10.1002/gcc.23147

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Genome-wide DNA Methylation Analysis in Pediatric Acute Myeloid Leukemia.2022

    • Author(s)
      Yamato G, Kawai T, Shiba N, Ikeda J, Hara Y, Ohki K, Tsujimoto SI, Kaburagi T, Yoshida K, Shiraishi Y, Miyano S, Kiyokawa N, Tomizawa D, Shimada A, Sotomatsu M, Arakawa H, Adachi S, Taga T, Horibe K, Ogawa S, Hata K, Hayashi Y.
    • Journal Title

      Blood advances

      Volume: in press Issue: 11 Pages: 3207-3219

    • DOI

      10.1182/bloodadvances.2021005381

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Clinical significance of RAS pathway alterations in pediatric acute myeloid leukemia.2021

    • Author(s)
      Kaburagi T, Yamato G, Shiba N, Yoshida K, Hara Y, Tabuchi K, Shiraishi Y,Ohki K, Sotomatsu M, Arakawa H, Matsuo H, Shimada A, Taki T, Kiyokawa N, Tomizawa D, Horibe K, Miyano S, Taga T, Adachi S, Ogawa S, Hayashi Y.
    • Journal Title

      Haematologica

      Volume: - Issue: 3 Pages: 583-592

    • DOI

      10.3324/haematol.2020.269431

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Droplet digital polymerase chain reaction assay for the detection of the minor clone of KIT D816V in paediatric acute myeloid leukaemia especially showing RUNX1-RUNX1T1 transcripts.2021

    • Author(s)
      Sasaki K, Tsujimoto S, Miyake M, Uchiyama Y, Ikeda J, Yoshitomi M, Shimosato Y, Tokumasu M, Matsuo H, Yoshida K, Ohki K, Kaburagi T, Yamato G, Hara Y, Takeuchi M, Kinoshita A, Tomizawa D, Taga T, Adachi S, Tawa A, Horibe K, Hayashi Y, Matsumoto N, Ito S, Shiba N.
    • Journal Title

      British Journal of Haematology

      Volume: 194(2) Issue: 2 Pages: 414-422

    • DOI

      10.1111/bjh.17569

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clinical features of 35 Down syndrome patients with transient abnormal myelopoiesis at a single institution.2021

    • Author(s)
      Yamato G, Park MJ, Hayashi Y, et al.
    • Journal Title

      Int J Hematol.

      Volume: 113 Issue: 5 Pages: 662-667

    • DOI

      10.1007/s12185-020-03066-7

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] UBTF-ITDは小児急性骨髄性白血病の予後因子である2022

    • Author(s)
      鏑木多映子, 大和玄季, 柴徳生, 吉田健一, 石北悦子, 原勇介, 白石友一, 大木健太郎, 河崎裕英, 外松学, 滝沢琢己, 滝智彦, 清河信敬, 富澤大輔, 堀部敬三, 宮野悟, 多賀崇, 足立壮一, 小川誠司, 林泰秀
    • Organizer
      第84回日本血液学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] DNAメチル化パターンによるKMT2A-MLLT3陽性小児急性骨髄性白血病患者の予後予測2022

    • Author(s)
      3.大和玄季, 河合智子, 柴 徳生, 原勇介, 大木健太郎, 鏑木多映子, 石北悦子, 吉田健一, 白石友一, 宮野悟, 清河信敬, 富澤 大輔 , 嶋田明, 外松学, 滝沢琢己 , 足立壮一, 多賀崇 , 堀部敬三, 小川誠司, 秦健一郎, 林泰秀
    • Organizer
      第84回日本血液学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Prognosis of pediatric acute myeloid leukemia with KMT2A-MLLT3 according to DNA methylation patterns: JCCG JPLSG AML-05 study.2022

    • Author(s)
      Yamato G, Kawai T, Shiba N, Hara Y, Ohki K, Kaburagi T, Ishikita E, Kawasaki H, Yoshida K, Shiraishi Y, Miyano S, Kiyokawa N, Tomizawa D, Shimada A, Sotomatsu M, Takizawa T, Adachi S, Taga T, Horibe K, Ogawa S, Hata K, Hayashi Y.
    • Organizer
      64th American Society of Hematology Annual Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 小児急性骨髄性白血病における7番染色体上の遺伝子異常と臨床的意義2021

    • Author(s)
      鏑木多映子、大和玄季、柴徳生、吉田健一、松尾英将、富澤大輔、足立壮一、多賀崇、小川誠司、林泰秀
    • Organizer
      第63回小児血液がん学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 小児急性骨髄性白血病における全ゲノムDNAメチル化解析2021

    • Author(s)
      大和玄季、河合智子、柴徳生、原勇介、大木健太郎、鏑木多映子、吉田健一、白石友一、宮野悟、清河信敬、富澤大輔、嶋田明、外松学、荒川浩一、足立壮一、多賀崇、堀部敬三、小川誠司、秦健一郎、林泰秀
    • Organizer
      第83回日本血液学会
    • Related Report
      2021 Research-status Report

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Published: 2021-10-22   Modified: 2024-01-30  

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