Identification of Protein Tyrosine Phosphatase Receptor Type O (PTPRO)   as a Synaptic Adhesion Molecule that Promotes Synapse Formation

doi:10.1523/JNEUROSCI.0729-17.2017

CORC > 北京大学 > 生命科学学院

	Identification of Protein Tyrosine Phosphatase Receptor Type O (PTPRO) as a Synaptic Adhesion Molecule that Promotes Synapse Formation
	Jiang, Wei ; Wei, Mengping ; Liu, Mengna ; Pan, Yunlong ; Cao, Dong ; Yang, Xiaofei ; Zhang, Chen
刊名	JOURNAL OF NEUROSCIENCE
	2017
关键词	co-culture electrophysiology morphologic PTPRO synapse formation synaptic cell adhesion molecules AXON GUIDANCE INHIBITORY SYNAPSES NEURONAL PENTRAXIN ALPHA-NEUREXINS EPHB RECEPTORS EXPRESSION NEUROLIGINS ABSENCE DISEASE SYNCAM
DOI	10.1523/JNEUROSCI.0729-17.2017
英文摘要	The proper formation of synapses-specialized unitary structures formed between two neurons-is critical to mediating information flow in the brain. Synaptic cell adhesion molecules (CAMs) are thought to participate in the initiation of the synapse formation process. However, in vivo functional analysis demonstrates that most well known synaptic CAMs regulate synaptic maturation and plasticity rather than synapse formation, suggesting that either CAMs work synergistically in the process of forming synapses or more CAMs remain to be found. By screening for unknown CAMs using a co-culture system, we revealed that protein tyrosine phosphatase receptor type O (PTPRO) is a potent CAM that induces the formation of artificial synapse clusters in co-cultures of human embryonic kidney 293 cells and hippocampal neurons cultured from newborn mice regardless of gender. PTPRO was enriched in the mouse brain and localized to postsynaptic sites at excitatory synapses. The overexpression of PTPRO in cultured hippocampal neurons increased the number of synapses and the frequency of miniature EPSCs (mEPSCs). The knock-down (KD) of PTPRO expression in cultured neurons by short hairpin RNA (shRNA) reduced the number of synapses and the frequencies of the mEPSCs. The effects of shRNA KD were rescued by expressing either full-length PTPRO or a truncated PTPRO lacking the cytoplasmic domain. Consistent with these results, the N-terminal extracellular domain of PTPRO was required for its synaptogenic activity in the co-culture assay. Our data show that PTPRO is a synaptic CAM that serves as a potent initiator of the formation of excitatory synapses.; National Basic Research Program of China [2017YFA0105201, 2012YQ03026004, 2014CB942804, 2014BAI03B01]; National Science Foundation of China [31670842, 31670850]; Beijing Municipal Science and Technology Commission [Z161100002616021, Z161100000216154]; National Key Research and Development Program of China [2017YFA0105201]; SCI(E); ARTICLE; 41; 9828-9843; 37
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/484717]
专题	生命科学学院
推荐引用方式 GB/T 7714	Jiang, Wei,Wei, Mengping,Liu, Mengna,et al. Identification of Protein Tyrosine Phosphatase Receptor Type O (PTPRO) as a Synaptic Adhesion Molecule that Promotes Synapse Formation[J]. JOURNAL OF NEUROSCIENCE,2017.
APA	Jiang, Wei.,Wei, Mengping.,Liu, Mengna.,Pan, Yunlong.,Cao, Dong.,...&Zhang, Chen.(2017).Identification of Protein Tyrosine Phosphatase Receptor Type O (PTPRO) as a Synaptic Adhesion Molecule that Promotes Synapse Formation.JOURNAL OF NEUROSCIENCE.
MLA	Jiang, Wei,et al."Identification of Protein Tyrosine Phosphatase Receptor Type O (PTPRO) as a Synaptic Adhesion Molecule that Promotes Synapse Formation".JOURNAL OF NEUROSCIENCE (2017).