Axonal Odorant Receptors Mediate Axon Targeting

Axonal Odorant Receptors Mediate Axon Targeting
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轴突气味受体介导轴突靶向

DOI:
10.1016/j.celrep.2019.11.099
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发表时间:
2019
期刊:
影响因子:
8.8
通讯作者:
Lodovichi Claudia
Lodovichi Claudia
中科院分区:
生物学1区
文献类型:
--
作者:
Zamparo Ilaria;Francia Simona;Franchi Sira Angela;Redolfi Nelly;Costanzi Elisa;Kerstens Axelle;Fukutani Yosuke;Battistutta Roberto;Polverino de Laureto Patrizia;Munck Sebastian;De Strooper Bart;Matsunami Hiroaki;Lodovichi Claudia

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In mammals, odorant receptors not only detect odors but also define the target in the olfactory bulb, where sensory neurons project to give rise to the sensory map. The odorant receptor is expressed at the cilia, where it binds odorants, and at the axon terminal. The mechanism of activation and function of the odorant receptor at the axon terminal is, however, still unknown. Here, we identify phosphatidylethanolamine-binding protein 1 as a putative ligand that activates the odorant receptor at the axon terminal and affects the turning behavior of sensory axons. Genetic ablation of phosphatidylethanolamine-binding protein 1 in mice results in a strongly disturbed olfactory sensory map. Our data suggest that the odorant receptor at the axon terminal of olfactory neurons acts as an axon guidance cue that responds to molecules originating in the olfactory bulb. The dual function of the odorant receptor links specificity of odor perception and axon targeting.
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