Definitive Hematopoiesis in Zebrafish

斑马鱼的决定性造血作用

基本信息

  • 批准号:
    7558943
  • 负责人:
  • 金额:
    $ 12.69万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2005
  • 资助国家:
    美国
  • 起止时间:
    2005-02-01 至 2010-01-31
  • 项目状态:
    已结题

项目摘要

DESCRIPTION (provided by applicant): Hematopoietic stem cell (HSC) biology impacts public health in that patients with blood disorders undergo irradiation to deplete malignant cells followed by transplantation of healthy HSCs to reconstitute their blood. Although much is known about HSC cellular and functional properties in mammals, relatively little is understood about the genetic pathways regulating their induction. The development of zebrafish as a model system has allowed for the unrivaled ability to discover genes in vertebrates through unbiased forward genetic screening approaches. Recent transgenic technology combined with the external fertilization and transparency of zebrafish embryos allows events in HSC specification and stem cell niche formation to be observed. This will address many long-standing questions regarding the molecular pathways regulating stem cell ontogeny. We propose to further characterize the hematopoietic phenotype in the Notch signaling mutant, mindbomb, pioneer transplantation technology in fish, and build a hierarchical network in the Notch pathway leading to HSC specification. To discover new genes required for HSC induction, we will use a mutagenesis strategy that has already uncovered 7 new mutants. The overall goal of this K01 application is to use the advantages of zebrafish to genetically dissect the role of the Notch pathway in HSC induction and to discover new genes governing HSC specification. These studies may elucidate new clinically relevant genes that translate from the fish into human patients. The research will be conducted in the laboratory of Leonard Zon, M.D. at Children's Hospital where the candidate, Caroline Erter Burns, Ph.D. is a fellow. Dr. Zon is a preeminent leader in the hematopoiesis, stem cell, and zebrafish fields and will provide mentorship and resources for the aims described. The candidate has institutional commitment from the Department of Medicine. A K01 award will aid Dr. Burns in achieving her goal of becoming an independent researcher in an academic setting studying the genetics of stem cell ontogeny.
描述(由申请人提供):造血干细胞(HSC)生物学影响公共健康,因为血液病患者接受辐照以消耗恶性细胞,然后移植健康的HSC以重建其血液。虽然对哺乳动物HSC的细胞和功能特性了解很多,但对调控其诱导的遗传途径了解相对较少。斑马鱼作为一个模型系统的发展,允许无与伦比的能力,发现脊椎动物的基因,通过无偏见的向前遗传筛选方法。最近的转基因技术与外部受精和透明的斑马鱼胚胎相结合,允许在HSC的规格和干细胞龛形成的事件进行观察。这将解决许多长期存在的问题,关于调节干细胞个体发育的分子途径。我们建议进一步表征Notch信号转导突变体,mindbomb,鱼类先驱移植技术中的造血表型,并在Notch通路中建立一个导致HSC特化的分层网络。为了发现HSC诱导所需的新基因,我们将使用已经发现7个新突变体的诱变策略。K01应用的总体目标是利用斑马鱼的优势,从遗传学上剖析Notch通路在HSC诱导中的作用,并发现控制HSC特异性的新基因。这些研究可能会阐明新的临床相关基因,这些基因从鱼类翻译到人类患者中。这项研究将在医学博士伦纳德·佐恩的实验室进行。在儿童医院,候选人卡罗琳·厄特·伯恩斯博士是个家伙Zon博士是造血,干细胞和斑马鱼领域的杰出领导者,并将为所描述的目标提供指导和资源。候选人有来自医学系的机构承诺。K01奖将帮助伯恩斯博士实现她的目标,成为一个独立的研究人员在学术环境中研究干细胞个体发育的遗传学。

项目成果

期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
A non-canonical function of zebrafish telomerase reverse transcriptase is required for developmental hematopoiesis.
  • DOI:
    10.1371/journal.pone.0003364
  • 发表时间:
    2008
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Imamura S;Uchiyama J;Koshimizu E;Hanai J;Raftopoulou C;Murphey RD;Bayliss PE;Imai Y;Burns CE;Masutomi K;Gagos S;Zon LI;Roberts TM;Kishi S
  • 通讯作者:
    Kishi S
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CAROLINE E BURNS其他文献

CAROLINE E BURNS的其他文献

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{{ truncateString('CAROLINE E BURNS', 18)}}的其他基金

Cardiovascular disease in fetal alcohol spectrum disorder
胎儿酒精谱系障碍中的心血管疾病
  • 批准号:
    10680484
  • 财政年份:
    2022
  • 资助金额:
    $ 12.69万
  • 项目类别:
Cardiovascular disease in fetal alcohol spectrum disorder
胎儿酒精谱系障碍中的心血管疾病
  • 批准号:
    10470413
  • 财政年份:
    2022
  • 资助金额:
    $ 12.69万
  • 项目类别:
Change of Institution
机构变更
  • 批准号:
    10687217
  • 财政年份:
    2017
  • 资助金额:
    $ 12.69万
  • 项目类别:
Cardiovascular Development and Regeneration in Zebrafish
斑马鱼的心血管发育和再生
  • 批准号:
    9795079
  • 财政年份:
    2017
  • 资助金额:
    $ 12.69万
  • 项目类别:
Change of Institution
机构变更
  • 批准号:
    10447109
  • 财政年份:
    2017
  • 资助金额:
    $ 12.69万
  • 项目类别:
Change of Institution
机构变更
  • 批准号:
    10214666
  • 财政年份:
    2017
  • 资助金额:
    $ 12.69万
  • 项目类别:
Deciphering the role of Notch signaling in zebrafish heart regeneration
破译Notch信号在斑马鱼心脏再生中的作用
  • 批准号:
    9041018
  • 财政年份:
    2015
  • 资助金额:
    $ 12.69万
  • 项目类别:
Deciphering the role of Notch signaling in zebrafish heart regeneration
破译Notch信号在斑马鱼心脏再生中的作用
  • 批准号:
    9247244
  • 财政年份:
    2015
  • 资助金额:
    $ 12.69万
  • 项目类别:
Cellular and Genetic Determinants of Great Vessel Morphogenesis
大血管形态发生的细胞和遗传决定因素
  • 批准号:
    8789383
  • 财政年份:
    2012
  • 资助金额:
    $ 12.69万
  • 项目类别:
Cellular and Genetic Determinants of Great Vessel Morphogenesis
大血管形态发生的细胞和遗传决定因素
  • 批准号:
    8218811
  • 财政年份:
    2012
  • 资助金额:
    $ 12.69万
  • 项目类别:

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