首页|Dip2a regulates stress susceptibility in the basolateral amygdala
Dip2a regulates stress susceptibility in the basolateral amygdala
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Dysregulation of neurotransmitter metabolism in the central nervous system contributes to mood disorders such as depression,anxiety,and post-traumatic stress disorder.Monoamines and amino acids are important types of neurotransmitters.Our previous results have shown that disco-interacting protein 2 homolog A(Dip2a)knockout mice exhibit brain development disorders and abnormal amino acid metabolism in serum.This suggests that DIP2A is involved in the metabolism of amino acid-associated neurotransmitters.Therefore,we performed targeted neurotransmitter metabolomics analysis and found that Dip2a deficiency caused abnormal metabolism of tryptophan and thyroxine in the basolateral amygdala and medial prefrontal cortex.In addition,acute restraint stress induced a decrease in 5-hydroxytryptamine in the basolateral amygdala.Additionally,Dip2a was abundantly expressed in excitatory neurons of the basolateral amygdala,and deletion of Dip2a in these neurons resulted in hopelessness-like behavior in the tail suspension test.Altogether,these findings demonstrate that DIP2A in the basolateral amygdala may be involved in the regulation of stress susceptibility.This provides critical evidence implicating a role of DIP2A in affective disorders.
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