Boc and Gas1 each form distinct Shh receptor complexes with Ptch1 and are required for Shh-mediated cell proliferation.
Boc and Gas1 each form distinct Shh receptor complexes with Ptch1 and are required for Shh-mediated cell proliferation.
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DOI:
10.1016/j.devcel.2011.04.017
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发表时间:
2011-06-14
影响因子:
11.8
通讯作者:
Charron, Frederic
中科院分区:
文献类型:
--
作者:
Izzi, Luisa;Levesque, Martin;Morin, Steves;Laniel, Dominique;Wilkes, Brian C.;Mille, Frederic;Krauss, Robert S.;McMahon, Andrew P.;Allen, Benjamin L.;Charron, Frederic
Hedgehog (Hh) proteins regulate important developmental processes including cell proliferation and differentiation. While Patched acts as the main Hh receptor, in Drosophila, Hh signaling absolutely requires the additional Hh-binding proteins Ihog and Boi. Here we show that, unexpectedly, cerebellar granule neuron progenitors (CGNPs) lacking Boc and Cdon, the vertebrate orthologs of Ihog and Boi, still proliferate in response to Hh. This is because in their absence, Gas1, a Hh-binding protein not present in Drosophila, mediates Hh signaling. Consistently, only CGNPs lacking all three molecules Boc, Cdon, and Gas1 have a complete loss of Hh-dependent proliferation. In a complementary manner, we find that a mutated Hh ligand which binds Patched1 but neither Boc, Cdon, nor Gas1 cannot activate Hh signaling. Together, this demonstrates an absolute requirement for Boc, Cdon, and Gas1 in Hh signaling and reveals a distinct requirement for ligand-binding components that distinguishes the vertebrate and invertebrate Hh receptor systems.
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影响因子:
56.9
作者:
Rohatgi, Rajat;Milenkovic, Ljiljana;Scott, Matthew P.
通讯作者:
Scott, Matthew P.
影响因子:
5.3
作者:
Fabre, Pierre J.;Shimogori, Tomomi;Charron, Frederic
通讯作者:
Charron, Frederic
影响因子:
11.8
作者:
Jiang J;Hui CC
通讯作者:
Hui CC
DOI:
10.1126/science.1181453
发表时间:
2009-12-04
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Flora A;Klisch TJ;Schuster G;Zoghbi HY
通讯作者:
Zoghbi HY
影响因子:
64.5
作者:
Charron, F;Stein, E;Tessier-Lavigne, M
通讯作者:
Tessier-Lavigne, M