The cell-surface modification enhances the engraftment of human CD34-positive cells into immunodeficient mice
Project/Area Number |
19591250
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Pediatrics
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Research Institution | Hiroshima University |
Principal Investigator |
KOBAYASHI Masao Hiroshima University, 大学院医歯薬学総合研究科, 教授 (00162016)
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Co-Investigator(Kenkyū-buntansha) |
KAJIUME Teruyuki 広島大学, 大学院・医歯薬学総合研究科, 助教 (40278924)
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Project Period (FY) |
2007 – 2008
|
Project Status |
Completed (Fiscal Year 2008)
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Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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Keywords | 造血幹細胞 / 細胞表面抗原 / 免疫不全マウス / 細胞接着因子 / 異種間移植 / 細胞接着蛋白 / 生着促進 |
Research Abstract |
造血幹細胞移植においてドナー細胞の生着促進は臨床上重要な課題である。本研究ではヒト臍帯血由来造血細胞を純化後,生着促進に関係するケモカイン受容体の一つであるCXCR4の発現と免疫不全マウス(NOD/SCIDへの移植(静脈内輸注)を行った。2時間の無血清培養,好中球エラスターゼ処理を行うと造血幹細胞表面CXCR4の発現が有意に増加し,CXCR4のinhibitorであるAMD3100を培養に添加するとCXCR4の発現増加はほぼ完全に抑制された。培養後の造血細胞,AMD3100添加培養後の細胞,非培養細胞の移植の結果,16時間後のホーミング活性,8~10週後のマウス骨髄再構築能ともに細胞表面CXCR4 発現が増強された細胞群で有意なホーミング活性の増強とヒト細胞のマウス骨髄内の再構築能増加が認められた。臍帯血由来造血幹細胞は2時間の無血清培養により,自己複製能を維持しながら,CXCR4の発現増強を介して骨髄生着促進が認められることが明らかとなり,造血幹細胞表面の接着因子の発現を増強させることにより,少量の造血幹細胞でも骨髄生着が可能となることが示唆された。
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Report
(3 results)
Research Products
(31 results)
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[Journal Article] Ela2 mutations and clinical manifestations in familial congenital neutropenia2009
Author(s)
Shiohara M, Shigemura T, Saito S, Tanaka M, Yanagisawa R, Sakashita K, Asada H, Ishii E, Koike K, Chin M, Kobayashi M, Koike K
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Journal Title
Journal of Pediatric Hematology Oncology 31
Pages: 319-324
Related Report
Peer Reviewed
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[Journal Article] Cardiac infiltration in Early-Onset Sarcoidosis Associated with a Novel Heterozygous Mutation, G481D, in CARD152009
Author(s)
Okada S, Konishi N, Tsumura M, Shirao K, Yasunga S, Sakai H, Nishikomori R, Takihara Y, Kobayashi M
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Journal Title
Rheumatology (in press)
Pages: 1093-1094
Related Report
Peer Reviewed
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[Journal Article] Polycomb-group complex 1 acts as an E3 ubiquitin ligase for Geminin to sustain hematopoietic stem cell activity2008
Author(s)
Ohtsubo M, Yasunaga S, Ohno Y, Tsumura M, Okada S, Ishikawa N, Shirao K, Kikuchi A, Nishitani H, Kobayashi M, Takihara Y
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Journal Title
Proc. Natl. Acad. Sci. USA 105(30)
Pages: 10396-10401
Related Report
Peer Reviewed
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[Journal Article] Neurodevelopmental abnormalities associated with severe congenital neutropenia due to the R86X mutation in the HAX1 gene2008
Author(s)
Ishikawa N, Okada S, Miki M, Shirao K, Kihara H, Tsumura M, Nakamura K, Kawaguchi H, Ohtsubo M, Yasunaga S, Matsubara K, Sako M, Hara J, Shiohara M, Kojima S, Sato T, Takihara Y, Kobayashi M
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Journal Title
Journal of Medical Genetics 45(12)
Pages: 802-807
Related Report
Peer Reviewed
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[Journal Article] Development of a new enzymatic diagnosis method for very-long-chain acyl-CoA dehydrogenase deficiency by detecting 2-hexadecenoyl-CoA production and its application in tandem mass spectrometry-based selective screening and newborn screening in Japan2008
Author(s)
Tajima G, Sakura N, Shirao K, Okada S, Tsumura M, Nishimura Y, Ono H, Hata I, Naito E, Yamaguchi S, Shigematsu Y, Kobayashi M
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Journal Title
Pediatric Research 64
Pages: 667-672
Related Report
Peer Reviewed
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[Presentation] Reconstitution of Regulatory T Cells Involves in the Development of Acute Graft-Versus-Host Disease after Hematopoietic Stem Cell Transplantation2008
Author(s)
Karakawa S, Nakamura K, Hara K, Mizoguchi Y, Miki M, Kawaguchi K, Sato T, Nishimura S, Kobayashi M
Organizer
American Society of Hematology, 50th Annual Meeting
Place of Presentation
San Francisco, CA, U.S.A.
Year and Date
2008-12-07
Related Report
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[Presentation] Novel Heterozygous Mutation 572insA in TACI Identified in a Patient with Selective IgA Deficiency2008
Author(s)
Okada S, Kajiume T, Tsumura M, Shirao K, Ohno Y, Yasunaga S, Ohtsubo M, Sira MM, Kanegane H, Miyawaki T, Takihara Y, Kobayashi M
Organizer
American Society of Hematology, 50th Annual Meeting
Place of Presentation
San Francisco, CA, U.S.A.
Year and Date
2008-12-06
Related Report
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[Presentation] Association of Neurodevelopmental Abnormalities Is a Common Clinical Character in Japanese Patients with Severe Congenital Neutropenia Due to HAX1 Deficiency2007
Author(s)
Okada S, Ishikawa N, Shirao K, Tsumura M, Sato T, Ohno Y, Yasunaga S, Ohtsubo M, Takihara Y, Kobayashi M
Organizer
American Society of Hematology, 49th Annual Meeting
Place of Presentation
Atlanta, GA, U.S.A.
Year and Date
2007-12-10
Related Report
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[Presentation] The Decrease of Regulatory T Cells through the Low Levels of FOXP3 Expression Mediated by NFAT1 in Infancy with Autoimmune Neutropenia2007
Author(s)
Nakamura N, Miki M, Karakawa S, Onodera R, Kurita E, Hiraoka A, Sato T, Kobayashi M
Organizer
American Society of Hematology, 49th Annual Meeting
Place of Presentation
Atlanta, GA, U.S.A.
Year and Date
2007-12-10
Related Report
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