Genetic interaction of PGE2 and Wnt signaling regulates developmental specification of stem cells and regeneration.
Genetic interaction of PGE2 and Wnt signaling regulates developmental specification of stem cells and regeneration.
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DOI:
10.1016/j.cell.2009.01.015
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发表时间:
2009-03-20
期刊:
影响因子:
64.5
通讯作者:
Zon LI
中科院分区:
文献类型:
--
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
Interactions between developmental signaling pathways govern the formation and function of stem cells. Prostaglandin (PG) E2 regulates vertebrate hematopoietic stem cells (HSC). Similarly, the Wnt signaling pathway controls HSC self-renewal and bone marrow repopulation. Here, we show that wnt reporter activity in zebrafish HSCs is responsive to PGE2 modulation, demonstrating a direct interaction in vivo. Inhibition of PGE2 synthesis blocked wnt-induced alterations in HSC formation. PGE2 modified the wnt signaling cascade at the level of β-catenin degradation through cAMP/PKA-mediated stabilizing phosphorylation events. The PGE2/Wnt interaction regulated murine stem and progenitor populations in vitro in hematopoietic ES cell assays and in vivo following transplantation. The relationship between PGE2 and Wnt was also conserved during regeneration of other organ systems. Our work provides the first in vivo evidence that Wnt activation in stem cells requires PGE2, and suggests the PGE2/Wnt interaction is a master regulator of vertebrate regeneration and recovery.
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影响因子:
2.7
作者:
Dorsky, RI;Sheldahl, LC;Moon, RT
通讯作者:
Moon, RT
DOI:
10.1073/pnas.220413597
发表时间:
2000-10-24
影响因子:
11.1
作者:
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通讯作者:
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作者:
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通讯作者:
Puder, M
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4.8
作者:
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通讯作者:
Regan, JW