Murine foetal liver supports limited detectable expansion of life-long haematopoietic progenitors.

Murine foetal liver supports limited detectable expansion of life-long haematopoietic progenitors.
复制标题

DOI:
10.1038/s41556-022-00999-5
复制
发表时间:
2022-10
影响因子:
21.3
通讯作者:
--
中科院分区:
生物学1区
文献类型:
--
作者:

文献摘要

参考文献

被引文献

相似文献

目前的理论认为,胎儿肝脏(FL)是胚胎发育过程中最近指定的造血干细胞(hsc)的扩张生态位。事实上,在胚胎发育日(E)12.5和E14.5之间,小鼠FL中可移植的hsc数量从50个增加到约1000个。在这里,我们使用了一种非侵入性的多色谱系追踪策略来研究小鼠造血祖细胞的胚胎扩张,这些祖细胞注定会形成成人的HSC池。我们的数据表明,在FL个体发生过程中,这个命运的祖细胞池只扩大了两倍。尽管体内Histone2B-GFP保留实验证实了表型FL-HSC在E12.5和E14.5之间的显著增殖,但配对的小女儿细胞实验显示,相对于表型新生儿和成人骨髓造血干细胞,许多妊娠中期表型FL-HSC倾向于分化,而不是自我更新。总的来说,这些数据支持一个模型,在这个模型中,注定要为成人血液做出贡献的FL-HSC池在个体发育期间仅适度扩张。Ganuza等人报道,胎儿肝造血干细胞(HSC)在很大程度上倾向于分化,而不是自我更新,导致HSC池适度扩大,有助于成人造血。
Current dogma asserts that the fetal liver (FL) is an expansion niche for recently specified hematopoietic stem cells (HSCs) during ontogeny. Indeed, between embryonic day of development (E)12.5 and E14.5, the number of transplantable HSCs in the murine FL expands from 50 to about 1000. Here, we used a non-invasive, multi-color lineage tracing strategy to interrogate the embryonic expansion of murine hematopoietic progenitors destined to contribute to the adult HSC pool. Our data show that this pool of fated progenitors expands only two-fold during FL ontogeny. Although Histone2B-GFP retention in vivo experiments confirmed significant proliferation of phenotypic FL-HSC between E12.5 and E14.5, paired daughter-cell assays revealed that many mid-gestation phenotypic FL-HSCs are biased to differentiate, rather than self-renew, relative to phenotypic neonatal and adult bone marrow HSCs. In total, these data support a model in which the FL-HSC pool fated to contribute to adult blood expands only modestly during ontogeny. Ganuza et al. report that fetal liver hematopoietic stem cells (HSCs) are largely biased to differentiation rather than self-renewal, resulting in a modest expansion of the HSC pool with contribution to adult hematopoiesis.
DOI: 10.1016/j.cell.2016.10.022
发表时间: 2016-11-17
期刊: CELL
影响因子: 64.5
作者:
Bernitz, Jeffrey M.;Kim, Huen Suk;MacArthur, Ben;Sieburg, Hans;Moore, Kateri
通讯作者: Moore, Kateri
DOI: 10.1016/j.ddstr.2009.06.003
发表时间: 2009-01-01
期刊: Drug discovery today. Therapeutic strategies
影响因子: --
作者:
Bowman, Teresa V;Zon, Leonard I
通讯作者: Zon, Leonard I
DOI: 10.1016/j.stemcr.2017.04.003
发表时间: 2017-06-06
期刊: Stem cell reports
影响因子: 5.9
作者:
Batsivari A;Rybtsov S;Souilhol C;Binagui-Casas A;Hills D;Zhao S;Travers P;Medvinsky A
通讯作者: Medvinsky A
DOI: 10.1038/nature14242
发表时间: 2015-02-26
期刊: NATURE
影响因子: 64.8
作者:
Busch, Katrin;Klapproth, Kay;Rodewald, Hans-Reimer
通讯作者: Rodewald, Hans-Reimer
克隆组装!个体发育和疾病期间血液的克隆复杂性。
DOI: 10.1016/j.exphem.2020.01.009
发表时间: 2020-03
影响因子: 2.6
作者:
Ganuza M;Hall T;Obeng EA;McKinney-Freeman S
通讯作者: McKinney-Freeman S