A novel pathway regulates social hierarchy via lncRNA AtLAS and postsynaptic synapsin IIb.
Cell Res
; 30(2): 105-118, 2020 02.
Article
in En
| MEDLINE
| ID: mdl-31959917
ABSTRACT
Dominance hierarchy is a fundamental phenomenon in grouped animals and human beings, however, the underlying regulatory mechanisms remain elusive. Here, we report that an antisense long non-coding RNA (lncRNA) of synapsin II, named as AtLAS, plays a crucial role in the regulation of social hierarchy. AtLAS is decreased in the prefrontal cortical excitatory pyramidal neurons of dominant mice; consistently, silencing or overexpression of AtLAS increases or decreases the social rank, respectively. Mechanistically, we show that AtLAS regulates alternative polyadenylation of synapsin II gene and increases synapsin 2b (syn2b) expression. Syn2b reduces AMPA receptor (AMPAR)-mediated excitatory synaptic transmission through a direct binding with AMPAR at the postsynaptic site via its unique C-terminal sequence. Moreover, a peptide disrupting the binding of syn2b with AMPARs enhances the synaptic strength and social ranks. These findings reveal a novel role for lncRNA AtLAS and its target syn2b in the regulation of social behaviors by controlling postsynaptic AMPAR trafficking.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Synapses
/
Signal Transduction
/
Synapsins
/
RNA, Long Noncoding
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
Cell Res
Year:
2020
Type:
Article
Affiliation country:
China