Brief report: serpin Spi2A as a novel modulator of hematopoietic progenitor cell formation.

Brief report: serpin Spi2A as a novel modulator of hematopoietic progenitor cell formation.
复制标题

DOI:
10.1002/stem.1778
复制
发表时间:
2014-09
期刊:
影响因子:
5.2
通讯作者:
Wojchowski, Don M.
Wojchowski, Don M.
中科院分区:
医学2区
文献类型:
--
作者:
Li, Lei;Byrne, Susan M.;Rainville, Nicole;Su, Su;Jachimowicz, Edward;Aucher, Anne;Davis, Daniel M.;Ashton-Rickardt, Philip G.;Wojchowski, Don M.

文献摘要

参考文献

被引文献

相似文献

造血祖细胞(HPC)产生的主要调节是由造血素(HP)及其Janus激酶偶联受体(HP-R‘s)实施的。对于HP/HP-R研究,确定特定效应的一个中心挑战涉及描述非冗余信号转导因子及其谱系限制作用。通过功能丧失(LOF)研究,我们确定了幽门螺杆菌调节的Serpina3g/Spi2a细胞内丝蛋白在粒细胞、B细胞和HSC形成中的作用。在粒系祖细胞中,GMCSF强烈诱导Serpina3g的表达,并依赖于Stat5。在暴露于肿瘤坏死因子-α的情况下,SPIP2A-KO导致CFU-GM的形成减少20倍,依赖于GMCSF的粒细胞的形成受到限制,中性粒细胞的存活也受到影响。在B细胞前体细胞中,Serpina3g是IL7的靶标。在竞争性骨髓移植和CpG挑战实验中,Spi2A-KO使CFU-Preb≫增加了6倍,并改变了B细胞的形成。在HSCs中,Serpina3g/Spi2a的表达也升高。Spi2a-KO影响LT-HSC的增殖(以及LSK细胞溶酶体的完整性),并影响LSK在5-FU后的恢复。因此,Spi2a可以调节幽门螺杆菌调节的免疫细胞,并在5-FU攻击后形成HSC。
Prime regulation over hematopoietic progenitor cell (HPC) production is exerted by hematopoietins (HP’s) and their Janus kinase-coupled receptors (HP-R’s). For HP/HP-R studies, one central challenge in determining specific effects involves the delineation of non-redundant signal transduction factors and their lineage restricted actions. Via loss-of-function (LOF) studies, we define roles for an HP-regulated Serpina3g/Spi2A intracellular serpin during granulomyelocytic, B-cell and HSC formation. In granulomyelocytic progenitors, GMCSF strongly induced Serpina3g expression with Stat5-dependency. Spi2A-KO led to 20-fold decreased CFU-GM formation, limited GMCSF-dependent granulocyte formation, and compromised neutrophil survival upon TNF-α exposure. In B-cell progenitors, Serpina3g was an IL7 target. Spi2A-KO elevated CFU-preB >6-fold, and altered B-cell formation in competitive BMT, and CpG challenge experiments. In HSCs, Serpina3g/Spi2A expression was also elevated. Spi2A-KO compromised LT-HSC proliferation (as well as LSK cell lysosomal integrity), and skewed LSK recovery post 5-FU. Spi2A therefore functions to modulate HP-regulated immune cell, and HSC formation post 5-FU challenge.
DOI: 10.1038/ng.924
发表时间: 2011-09-04
期刊: Nature genetics
影响因子: 30.8
作者:
Zenatti PP;Ribeiro D;Li W;Zuurbier L;Silva MC;Paganin M;Tritapoe J;Hixon JA;Silveira AB;Cardoso BA;Sarmento LM;Correia N;Toribio ML;Kobarg J;Horstmann M;Pieters R;Brandalise SR;Ferrando AA;Meijerink JP;Durum SK;Yunes JA;Barata JT
通讯作者: Barata JT
DOI: 10.1084/jem.20042299
发表时间: 2005-04-04
期刊: The Journal of experimental medicine
影响因子: --
作者:
Winkler IG;Hendy J;Coughlin P;Horvath A;Lévesque JP
通讯作者: Lévesque JP
DOI: 10.4049/jimmunol.172.8.4770
发表时间: 2004-04-15
影响因子: 4.4
作者:
Goetz, CA;Harmon, IR;Farrar, MA
通讯作者: Farrar, MA
DOI: 10.1182/blood-2012-10-460170
发表时间: 2013-06-20
期刊: BLOOD
影响因子: 20.3
作者:
Padron, Eric;Painter, Jeffrey S.;Epling-Burnette, Pearlie K.
通讯作者: Epling-Burnette, Pearlie K.
DOI: 10.4049/jimmunol.1002971
发表时间: 2011-01-15
影响因子: 4.4
作者:
Greenhill, Claire J.;Rose-John, Stefan;Jenkins, Brendan J.
通讯作者: Jenkins, Brendan J.