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Japanese

Title 急性リンパ性白血病 : 最新の知見
Subtitle 総説
Authors 真部淳
Authors (kana)
Organization 北海道大学大学院医学研究院小児科学教室
Journal 日本造血細胞移植学会雑誌
Volume 10
Number 2
Page 72-80
Year/Month 2021 /
Article 報告
Publisher 日本造血細胞移植学会
Abstract ALLの治療成績は大きく改善したが, 難治例の治療, 抗がん剤の毒性軽減のために新薬導入が必要である. Ph陽性ALL患者に対してはイマチニブと化学療法の併用によってHSCTを回避出来る可能性が示唆されている. またPh-like ALLでもABLやPDGFRBなどのチロシンキナーゼ遺伝子転座を有する例でTKIの有用性が示された. B細胞型ALLの再発・難治例に対しては免疫療法として, ブリナツモマブ抗体投与とCAR-T細胞療法が保険収載された. 6メルカプトプリンの代謝はNUDT15の遺伝子多型に依存することがわかり, その検査が保険収載された. 一方ALL治療後に二次がんを来たしやすい遺伝性素因 (TP53など) もわかってきた. 今後, ゲノム医療の進歩により, ALLの発症機転, 芽球の薬剤感受性, 薬物による毒性, 二次がんを来たしやすい素因などが統括的に明らかにされ, 個別化医療の一層の進展が期待される.
Practice 臨床医学:内科系
Keywords 急性リンパ性白血病, 白血病ゲノム, 免疫療法, GWAS, 個別化医療

English

Title Recent advances in acute lymphoblastic leukemia
Subtitle
Authors Atsushi Manabe
Authors (kana)
Organization Department of Pediatrics, Hokkaido University Graduate School of Medicine
Journal Journal of Hematopoietic Cell Transplantation
Volume 10
Number 2
Page 72-80
Year/Month 2021 /
Article Report
Publisher The Japan Society for Hematopoietic Cell Transplantation
Abstract [Abstract] Although the outcome of patients with ALL has dramatically improved, we still need novel therapy to treat refractory cases and reduced toxicities of conventional therapy in ALL patients. Imatinib-combined with chemotherapy resulted in a good outcome and some patients with Ph-positive ALL may not need HSCT. Tyrosine kinase inhibitors could also be used for those with Ph-like ALL having ABL and PDGFRB translocations. Immunotherapy such as blinatumomab bispecific antibody and CAR-T cell treatment have been developed and are recently covered by health insurance in Japan. NUDT15 polymorphism is appreciated as a major role player in 6-mercaptopirine metabolism and genetic polymorphism examination is recently covered by health insurance in Japan. The prevalence of cancer predisposition genes has recently been extensively studied and some genes such as TP53 is also involved in ALL leukemogenesis and therapy-related cancer may be another important issue in leukemia treatment. Thus, the development of genomic medicine will not only expand our knowledge but also contribute to personalized medicine in the context of leukemogenesis, sensitivity to drugs, toxicity, and subsequent occurrence of secondary cancer.
Practice Clinical internal medicine
Keywords GWAS
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参考文献

  • 1. Kato M, Manabe A. Treatment and biology of pediatric acute lymphoblastic leukemia. Pediatr Int. 2018; 60: 4-12.
  • 2. Tomizawa D, Miyamura T, Imamura T, et al. A risk-stratified therapy for infants with acute lymphoblastic leukemia: a report from the JPLSG MLL-10 trial. Blood. 2020; 136: 1813-1823.
  • 3. Hayakawa F, Sakura T, Yujiri T, et al. Markedly improved outcomes and acceptable toxicity in adolescents and young adults with acute lymphoblastic leukemia following streatment with a pediatric protocol. A phase II study by the Japan Adult Leukemia Study Group. Blood Cancer J. 2014; 4: e252.
  • 4. Toyoda Y, Manabe A, Tsuchida M, et al. Six months of maintenance chemotherapy after intensified treatment for acute lymphoblastic leukemia of childhood. J Clin Oncol. 2000; 18: 1508-1516.
  • 5. Kato M, Ishimaru S, Seki M, et al. Long-term outcome of 6-month maintenance chemotherapy for acute lymphoblastic leukemia in children. Leukemia. 2017; 31: 580-584.
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