Flow-induced protein kinase A-CREB pathway acts via BMP signaling to promote HSC emergence.
Flow-induced protein kinase A-CREB pathway acts via BMP signaling to promote HSC emergence.
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DOI:
10.1084/jem.20141514
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发表时间:
2015-05-04
期刊:
影响因子:
--
通讯作者:
Daley GQ
中科院分区:
文献类型:
--
作者:
Kim PG;Nakano H;Das PP;Chen MJ;Rowe RG;Chou SS;Ross SJ;Sakamoto KM;Zon LI;Schlaeger TM;Orkin SH;Nakano A;Daley GQ
Kim et al. identify a novel shear stress–induced pathway involving protein kinase A, CREB, and bone morphogenetic protein that regulates hematopoietic stem cell generation in the embryonic aorta. Fluid shear stress promotes the emergence of hematopoietic stem cells (HSCs) in the aorta–gonad–mesonephros (AGM) of the developing mouse embryo. We determined that the AGM is enriched for expression of targets of protein kinase A (PKA)–cAMP response element-binding protein (CREB), a pathway activated by fluid shear stress. By analyzing CREB genomic occupancy from chromatin-immunoprecipitation sequencing (ChIP-seq) data, we identified the bone morphogenetic protein (BMP) pathway as a potential regulator of CREB. By chemical modulation of the PKA–CREB and BMP pathways in isolated AGM VE-cadherin+ cells from mid-gestation embryos, we demonstrate that PKA–CREB regulates hematopoietic engraftment and clonogenicity of hematopoietic progenitors, and is dependent on secreted BMP ligands through the type I BMP receptor. Finally, we observed blunting of this signaling axis using Ncx1-null embryos, which lack a heartbeat and intravascular flow. Collectively, we have identified a novel PKA–CREB–BMP signaling pathway downstream of shear stress that regulates HSC emergence in the AGM via the endothelial-to-hematopoietic transition.
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影响因子:
64.8
作者:
Chen, Michael J.;Yokomizo, Tomomasa;Zeigler, Brandon M.;Dzierzak, Elaine;Speck, Nancy A.
通讯作者:
Speck, Nancy A.
影响因子:
64.5
作者:
Goessling W;North TE;Loewer S;Lord AM;Lee S;Stoick-Cooper CL;Weidinger G;Puder M;Daley GQ;Moon RT;Zon LI
通讯作者:
Zon LI
影响因子:
12.3
作者:
Carpenter AE;Jones TR;Lamprecht MR;Clarke C;Kang IH;Friman O;Guertin DA;Chang JH;Lindquist RA;Moffat J;Golland P;Sabatini DM
通讯作者:
Sabatini DM
影响因子:
4
作者:
dela Paz, Nathaniel G.;Walshe, Tony E.;D'Amore, Patricia A.
通讯作者:
D'Amore, Patricia A.
影响因子:
4.8
作者:
Cherian, PP;Cheng, BX;Jiang, JX
通讯作者:
Jiang, JX