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2014 ; 159
(2
): 295-305
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Oxytocin modulates female sociosexual behavior through a specific class of
prefrontal cortical interneurons
#MMPMID25303526
Nakajima M
; Görlich A
; Heintz N
Cell
2014[Oct]; 159
(2
): 295-305
PMID25303526
show ga
Human imaging studies have revealed that intranasal administration of the
"prosocial" hormone oxytocin (OT) activates the frontal cortex, and this action
of OT correlates with enhanced brain function in autism. Here, we report the
discovery of a population of somatostatin (Sst)-positive, regular spiking
interneurons that express the oxytocin receptor (OxtrINs). Silencing of OxtrINs
in the medial prefrontal cortex (mPFC) of female mice resulted in loss of social
interest in male mice specifically during the sexually receptive phase of the
estrous cycle. This sociosexual deficit was also present in mice in which the
Oxtr gene was conditionally deleted from the mPFC and in control mice infused
with an Oxtr antagonist. Our data demonstrate a gender-, cell type-, and
state-specific role for OT/Oxtr signaling in the mPFC and identify a latent
cortical circuit element that may modulate other complex social behaviors in
response to OT.