Dorsal bed nucleus of the stria terminalis GABA neurons are necessary for chronic unpredictable stress-induced depressive behaviors in adolescent male mice.

IF 3.7 2区 医学 Q1 PSYCHIATRY Journal of psychiatric research Pub Date : 2025-01-17 DOI:10.1016/j.jpsychires.2025.01.034
Wenjing Hu, Qiyuan Wang, Lifang Jiang, Lina Zhang, Huichao Sun, Junying Bao, Xiao Chen, Gaole Yuan, Kai Yan, Yun Liu, Jian Wu, Tao Liu
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Abstract

Background: Previous studies have shown that neurons in the Bed Nucleus of the Stria Terminalis (BNST) respond to stress and play a key role in mental health. However, the cellular bases of BNST in adolescent depression remain elusive.

Methods: Male C57BL/6 mice were randomly assigned to the control (Ctrl) or chronic unpredictable stress (CUS) groups. The CUS mice, aged 28 days, were subjected to diverse stressors at various times of the day for 12 days. Depression-like behaviors were assessed through the sucrose preference test (SPT) and tail suspension test (TST). Immunostaining was used to investigate the neural activity and subtypes in the brain. A chemogenetic tool was conducted to examine the role of specific neural activity in CUS-induced depression-like behaviors.

Results: CUS led to a significant decrease in preference for sucrose solution in the SPT and increased immobility time in the TST. C-Fos immunostaining showed hyperactivity of the GABAergic neurons within the dorsal BNST (dBNSTGABA). Chemogenetic activation of dBNSTGABA neurons increased depression-like behaviors. Conversely, chemogenetic inhibition of dBNSTGABA neurons led to a decrease in CUS-induced depression.

Conclusions: These results suggest that adolescent CUS induces hyperactivity of dBNSTGABA neurons, subsequently giving rise to depression-like behaviors and that reducing dBNSTGABA neuronal activity might constitute a novel and efficacious therapeutic approach for adolescent depression.

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来源期刊
Journal of psychiatric research
Journal of psychiatric research 医学-精神病学
CiteScore
7.30
自引率
2.10%
发文量
622
审稿时长
130 days
期刊介绍: Founded in 1961 to report on the latest work in psychiatry and cognate disciplines, the Journal of Psychiatric Research is dedicated to innovative and timely studies of four important areas of research: (1) clinical studies of all disciplines relating to psychiatric illness, as well as normal human behaviour, including biochemical, physiological, genetic, environmental, social, psychological and epidemiological factors; (2) basic studies pertaining to psychiatry in such fields as neuropsychopharmacology, neuroendocrinology, electrophysiology, genetics, experimental psychology and epidemiology; (3) the growing application of clinical laboratory techniques in psychiatry, including imagery and spectroscopy of the brain, molecular biology and computer sciences;
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