Prostaglandin signalling regulates ciliogenesis by modulating intraflagellar transport.
Prostaglandin signalling regulates ciliogenesis by modulating intraflagellar transport.
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DOI:
10.1038/ncb3029
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发表时间:
2014-09
影响因子:
21.3
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中科院分区:
文献类型:
--
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Cilia are microtubule-based organelles that mediate signal transduction in a variety of tissues. Despite their importance, the signaling cascades that regulate cilia formation remain incompletely understood. Here we report that prostaglandin signaling affects ciliogenesis by regulating anterograde intraflagellar transport (IFT). Zebrafish leakytail (lkt) mutants display ciliogenesis defects, and lkt locus encodes an ATP-binding cassette transporter (ABCC4). We show that Lkt/ABCC4 localizes to the cell membrane and exports prostaglandin E2 (PGE2), a function that is abrogated by the Lkt/ABCC4T804M mutant. PGE2 synthesis enzyme Cyclooxygenase-1 and its receptor, EP4, which localizes to the cilium and activates cAMP-mediated signaling cascade, are required for cilia formation and elongation. Importantly, PGE2 signaling increases anterograde but not retrograde velocity of IFT and promotes ciliogenesis in mammalian cells. These findings lead us to propose that Lkt/ABCC4-mediated PGE2 signaling acts through a ciliary G-protein-coupled receptor, EP4, to upregulate cAMP synthesis and increase anterograde IFT, thereby promoting ciliogenesis.
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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:
3.6
作者:
Fukuda, Yu;Takenaka, Kazumasa;Schuetz, John D.
通讯作者:
Schuetz, John D.
影响因子:
9.2
作者:
Amack, JD;Yost, HJ
通讯作者:
Yost, HJ
影响因子:
4.3
作者:
Lord, Allegra M.;North, Trista E.;Zon, Leonard I.
通讯作者:
Zon, Leonard I.
影响因子:
64.5
作者:
Gerdes JM;Davis EE;Katsanis N
通讯作者:
Katsanis N