Differential requirement for irf8 in formation of embryonic and adult macrophages in zebrafish.
Differential requirement for irf8 in formation of embryonic and adult macrophages in zebrafish.
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DOI:
10.1371/journal.pone.0117513
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Talbot WS
中科院分区:
文献类型:
--
作者:
Shiau CE;Kaufman Z;Meireles AM;Talbot WS
Interferon regulatory factor 8 (Irf8) is critical for mammalian macrophage development and innate immunity, but its role in teleost myelopoiesis remains incompletely understood. In particular, genetic tools to analyze the role of Irf8 in zebrafish macrophage development at larval and adult stages are lacking. We generated irf8 null mutants in zebrafish using TALEN-mediated targeting. Our analysis defines different requirements for irf8 at different stages. irf8 is required for formation of all macrophages during primitive and transient definitive hematopoiesis, but not during adult-phase definitive hematopoiesis starting at 5-6 days postfertilization. At early stages, irf8 mutants have excess neutrophils and excess cell death in pu.1-expressing myeloid cells. Macrophage fates were recovered in irf8 mutants after wildtype irf8 expression in neutrophil and macrophage lineages, suggesting that irf8 regulates macrophage specification and survival. In juvenile irf8 mutant fish, mature macrophages are present, but at numbers significantly reduced compared to wildtype, indicating an ongoing requirement for irf8 after embryogenesis. As development progresses, tissue macrophages become apparent in zebrafish irf8 mutants, with the possible exception of microglia. Our study defines distinct requirement for irf8 in myelopoiesis before and after transition to the adult hematopoietic system.
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影响因子:
4.4
作者:
Qi, Chen-Feng;Li, Zhaoyang;Raffeld, Mark;Wang, Hongsheng;Kovalchuk, Alexander L.;Morse, Herbert C., III
通讯作者:
Morse, Herbert C., III
影响因子:
25
作者:
Kierdorf, Katrin;Erny, Daniel;Prinz, Marco
通讯作者:
Prinz, Marco
影响因子:
20.3
作者:
Gordy, Claire;Pua, Heather;He, You-Wen
通讯作者:
He, You-Wen
影响因子:
2.5
作者:
KIMMEL, CB;BALLARD, WW;SCHILLING, TF
通讯作者:
SCHILLING, TF
DOI:
10.4049/jimmunol.0800680
发表时间:
2009-03-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Marquis JF;LaCourse R;Ryan L;North RJ;Gros P
通讯作者:
Gros P