Targeting cancer stem cells in myelodysplastic syndrome

靶向骨髓增生异常综合征中的癌症干细胞

基本信息

  • 批准号:
    23591392
  • 负责人:
  • 金额:
    $ 3.24万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2011
  • 资助国家:
    日本
  • 起止时间:
    2011 至 2013
  • 项目状态:
    已结题

项目摘要

Cancer stem cells (CSCs) are therapeutic targets and must be eliminated to cure the patients. However, those cells have not been found yet in myelodysplastic syndrome (MDS). Immunodeficient mice are widely used to reconstitute human hematopoiesis by xenotransplantation of hematopoietic stem cells (HSCs), and this model provides a powerful tool to evaluate biological properties of human cancer stem cells. We found that in xenograft rejection, the innate phagocytic reaction of mouse macrophages could occur because murine SIRPA (mSIRPA) on macrophages cannot bind to human CD47 (hCD47). Thus, introduction of human SIRPA allows mouse macrophage to bind hCD47 on the graft, resulting in inhibition of phagocytic reaction against human cells. Here, we have established a new immunodeficient mouse line, B6-Rag2(null)Il2rg(null) mice with human SIRPA to induce complete macrophage tolerance.This strain should be very useful in xenotransplant experiments to assay MDS stem cells.
癌症干细胞(CSC)是治疗靶标,必须消除以治愈患者。但是,这些细胞尚未在骨髓增生综合征(MDS)中发现。免疫缺陷小鼠被广泛用于通过造血干细胞(HSC)的异种移植(HSC)重新构建人类造血作用,该模型为评估人类癌症干细胞的生物学特性提供了强大的工具。我们发现,在异种移植排斥中,可能会发生小鼠巨噬细胞的先天吞噬反应,因为巨噬细胞上的鼠siRPA(MSIRPA)无法与人CD47(HCD47)结合。因此,引入人类siRPA允许小鼠巨噬细胞在移植物上结合HCD47,从而抑制对人类细胞的吞噬反应。在这里,我们建立了一种新的免疫缺陷小鼠系,具有人类siRPA的B6-RAG2(NULL)IL2RG(NULL)小鼠,以诱导完全的巨噬细胞耐受性。该菌株在异种移植实验中应该非常有用,以测定分析MDS干细胞。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Quantitation of hematogones at the time of engraftment is a useful prognostic indicator in allogeneic hematopoietic stem cell transplantation
植入时的血红素定量是同种异体造血干细胞移植中有用的预后指标
  • DOI:
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    20.3
  • 作者:
    Hayashi K;Nakamura M;Sakamoto W;Yogo T;Miki H;Ozaki S;Abe M;Matsumoto T;Ishimura K.;Shima T,以下16名
  • 通讯作者:
    Shima T,以下16名
Self-Renewing Hematopoietic Stem Cell Is the Primary Target in Pathogenesis of Human Chronic Lymphocytic Leukemia
  • DOI:
    10.1016/j.ccr.2011.06.029
  • 发表时间:
    2011-08-16
  • 期刊:
  • 影响因子:
    50.3
  • 作者:
    Kikushige, Yoshikane;Ishikawa, Fumihiko;Akashi, Koichi
  • 通讯作者:
    Akashi, Koichi
Contribution of bone marrow-derived hematopoietic stem/progenitor cells to the generation of donor-marker⁺ cardiomyocytes in vivo.
  • DOI:
    10.1371/journal.pone.0062506
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Fukata M;Ishikawa F;Najima Y;Yamauchi T;Saito Y;Takenaka K;Miyawaki K;Shimazu H;Shimoda K;Kanemaru T;Nakamura K;Odashiro K;Nagafuji K;Harada M;Akashi K
  • 通讯作者:
    Akashi K
Stem cell gene expression programs influence clinical outcome in human leukemia
  • DOI:
    10.1038/nm.2415
  • 发表时间:
    2011-09-01
  • 期刊:
  • 影响因子:
    82.9
  • 作者:
    Eppert, Kolja;Takenaka, Katsuto;Dick, John E.
  • 通讯作者:
    Dick, John E.
The BALB/c-specific polymorphic SIRPA enhances its affinity for human CD47, inhibiting phagocytosis against human cells to promote xenogeneic engraftment
  • DOI:
    10.1016/j.exphem.2013.11.005
  • 发表时间:
    2014-03-01
  • 期刊:
  • 影响因子:
    2.6
  • 作者:
    Iwamoto, Chika;Takenaka, Katsuto;Akashi, Koichi
  • 通讯作者:
    Akashi, Koichi
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TAKENAKA Katsuto其他文献

TAKENAKA Katsuto的其他文献

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{{ truncateString('TAKENAKA Katsuto', 18)}}的其他基金

Functional analysis of miRNA/transcription factors highly expressed in leukemia stem cells
白血病干细胞高表达的miRNA/转录因子的功能分析
  • 批准号:
    20591134
  • 财政年份:
    2008
  • 资助金额:
    $ 3.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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Development of next-generation patient-derived xenograft models for precision medicine
开发用于精准医疗的下一代患者来源的异种移植模型
  • 批准号:
    21H02949
  • 财政年份:
    2021
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Cancer stem cell purification and drug discovery support by the overall disease model using a new PDX model
使用新的 PDX 模型的整体疾病模型支持癌症干细胞纯化和药物发现
  • 批准号:
    18H02840
  • 财政年份:
    2018
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    $ 3.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Multidimensional Analysis of Cancer Stem Cell - Microenvironment Interaction with Patient Derived Xenografts (PDX) or Cancer Xenopatients
癌症干细胞的多维分析 - 微环境与患者来源的异种移植物 (PDX) 或癌症异种患者的相互作用
  • 批准号:
    15H04287
  • 财政年份:
    2015
  • 资助金额:
    $ 3.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Cancer stem cell assay by a new immunodeficient mouse model Cancer stem cell assay by a new immunodeficient mouse model harboring with optimal bone marrow microenvironment
通过新型免疫缺陷小鼠模型进行癌症干细胞测定 通过具有最佳骨髓微环境的新型免疫缺陷小鼠模型进行癌症干细胞测定
  • 批准号:
    15K15365
  • 财政年份:
    2015
  • 资助金额:
    $ 3.24万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
in vivo Mechanisms of Novel Selective Fluorescent Leukemia Stem Cell Inhibitor
新型选择性荧光白血病干细胞抑制剂的体内机制
  • 批准号:
    15K15051
  • 财政年份:
    2015
  • 资助金额:
    $ 3.24万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
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