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.
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DOI:
10.1002/stem.1778
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发表时间:
2014-09
期刊:
影响因子:
5.2
通讯作者:
Wojchowski, Don M.
中科院分区:
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.
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.
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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
影响因子:
4.4
作者:
Goetz, CA;Harmon, IR;Farrar, MA
通讯作者:
Farrar, MA
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.
影响因子:
4.4
作者:
Greenhill, Claire J.;Rose-John, Stefan;Jenkins, Brendan J.
通讯作者:
Jenkins, Brendan J.