High-throughput genetic screen for synaptogenic factors: identification of LRP6 as critical for excitatory synapse development.
High-throughput genetic screen for synaptogenic factors: identification of LRP6 as critical for excitatory synapse development.
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DOI:
10.1016/j.celrep.2013.11.008
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发表时间:
2013-12-12
期刊:
影响因子:
8.8
通讯作者:
Huganir RL
中科院分区:
文献类型:
--
作者:
Sharma K;Choi SY;Zhang Y;Nieland TJ;Long S;Li M;Huganir RL
Genetic screens in invertebrates have discovered many synaptogenic genes and pathways. However, similar genetic studies have not been possible in mammals. We have optimized an automated high-throughput platform that employs automated liquid handling and imaging of primary mammalian neurons. Using this platform we have screened 3200 shRNAs targeting 800 proteins. One of the hits identified was LRP6, a co-receptor for canonical Wnt ligands. LRP6 regulates excitatory synaptogenesis, and is selectively localized to excitatory synapses. In vivo knockdown of LRP6 leads to a reduction in the number of functional synapses. Moreover, we show that the canonical Wnt ligand, Wnt8A, promotes synaptogenesis via LRP6. These results provide a proof of principle for using a high content approach to screen for synaptogenic factors in the mammalian nervous system, and identify and characterize a Wnt ligand receptor complex that is critical for development of functional synapses in vivo.
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影响因子:
11.8
作者:
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通讯作者:
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影响因子:
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DOI:
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期刊:
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