International collaborative effort to study of pathophysiology and development of novel therapy of congenital sideroblastic anemia
Project/Area Number |
17H04668
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 海外学術 |
Research Field |
Hematology
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Research Institution | Tohoku University |
Principal Investigator |
Harigae Hideo 東北大学, 医学系研究科, 教授 (50302146)
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Co-Investigator(Kenkyū-buntansha) |
梨井 康 国立研究開発法人国立成育医療研究センター, 移植免疫研究室, 室長 (60321890)
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2019: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2018: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2017: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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Keywords | 鉄芽球性貧血 / 血液内科学 / 内科 |
Outline of Final Research Achievements |
As congenital sideroblastic anemia (CSA)is very rare, there is a need to collect the data of patients and clarify the molecular pathogenesis to develop a novel therapy by the international collaborative study. In this study, 17 cases of congenital sideroblastic anemia were found at Chinese Academy of Medical Sciences and Peking Union Medical College. In 7 out of 17cases, mutations of 5-aminolevulinate synthase (ALAS2) gene, which is the first enzyme of heme biosynthesis in erythroid cells were identified. In addition, mutations of SLC25A38 gene, which codes the mitochondrial glycine transporter were identified in 3 out of 17cases. Gene mutations of 22 congenital anemia cases at National Institute of Immunohaematology in India were analyzed; however, mutations responsible for CSA were not identified. In Japan, a novel mutation of HSPA9 gene and SLC5A6 gene was found. The significance of mutations are being confirmed by in vitro differentiation system established in this study.
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Academic Significance and Societal Importance of the Research Achievements |
遺伝性鉄芽球性貧血はミトコンドリアにおける鉄代謝に異常が生じ発症する難治性貧血である。極めてまれな疾患で、新たな治療法の開発には国際間での症例の蓄積が必要である。本研究によって、中国・インドにおいても症例数が限られていることが明らかとなった。一方で、中国で確認された症例の遺伝子変異は日本でのそれと類似していることが確認できた。また、本邦においても新たな候補遺伝子が確認され、本研究で確立したin vitroのモデル系で検証中である。本研究で国際的な共同研究体制が確立できたこと、またin vitroでのモデル系が確立できたことは極めて学術的・社会的に意義があると思われる。
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Report
(4 results)
Research Products
(32 results)
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[Journal Article] Generation and Molecular Characterization of Human Ring Sideroblasts: a Key Role of Ferrous Iron in Terminal Erythroid Differentiation and Ring Sideroblast Formation.2019
Author(s)
Saito K, Fujiwara T, Hatta S, Morita M, Ono K, Suzuki C, Fukuhara N, Onishi Y, Nakamura Y, Kawamata S, Shimizu R, Yamamoto M, Harigae H.
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Journal Title
Mol Cell Biol.
Volume: 39
Issue: 7
DOI
Related Report
Peer Reviewed
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[Journal Article] Successful treatment of X-linked sideroblastic anemia with <i>ALAS2</i> R452H mutation using vitamin B<sub>6</sub>2018
Author(s)
Kawakami T, Nakazawa H, Kawakami F, Matsuzawa S, Sudo Y, Sakai H, Nishina S, Senoo N, Senoo Y, Komatsu M, Umemura T, Yamaguchi T, Kosho T, Fujiwara T, Harigae H, Ishida F.
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Journal Title
Rinsho Ketsueki
Volume: 59
Issue: 4
Pages: 401-406
DOI
NAID
ISSN
0485-1439, 1882-0824
Related Report
Peer Reviewed
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[Journal Article] Dynamics of absorption, metabolism, and excretion of 5-aminolevulinic acid in human intestinal Caco-2 cells.2017
Author(s)
Saito K, Fujiwara T, Ota U, Hatta S, Ichikawa S, Kobayashi M, Okitsu Y, Fukuhara N, Onishi Y, Ishizuka M, Tanaka T, Harigae H
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Journal Title
Biochemistry and Biophysics Reports
Volume: 11
Pages: 105-111
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Role of mitochondrial membrane protein FAM210B during erythroid differentiation2019
Author(s)
Chie Suzuki ,Toru Fujiwara ,Kei Saito,Hiroki Shima ,Koya Ono,Koichi Onodera,Satoshi Ichikawa ,Noriko Fukuhara ,Yasushi Onishi ,Yukio Nakamura,Hideo Harigae
Organizer
第81回日本血液学会学術集会
Related Report
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[Presentation] Proteomic Analysis of Mitochondrial Membrane Protein FAM210B in Erythroid Cells2019
Author(s)
Chie Suzuki , Tohru Fujiwara, Hiroki Shima , Koya Ono, Kei Saito , Noriko Fukuhara,Yasushi Onishi, Hisayuki Yokoyama, Shinichi Fujimaki , Yukio Nakamura, Hideo Harigae,
Organizer
61 st ASH Annual Meeting & Exposition (第61回アメリカ血液学会)
Related Report
Int'l Joint Research
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