中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (5): 1139-1146.doi: 10.12307/2026.041

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

基于高通量测序技术分析慢性社会挫败应激小鼠抑郁样行为的作用机制

张  迪1,赵  君2,马广悦1,孙  晖1,蒋  蓉1   

  1. 滨州医学院,1基础医学院,2护理学院(老年医学院),山东省烟台市   264003
  • 收稿日期:2024-12-02 接受日期:2025-02-12 出版日期:2026-02-18 发布日期:2025-06-24
  • 通讯作者: 孙晖,男,教授,博士,硕士生导师,滨州医学院,山东省烟台市 264003 通讯作者:蒋蓉,女,副教授,博士,硕士生导师,滨州医学院,山东省烟台市 264003
  • 作者简介:张迪,女,1997年生,山东省聊城市人,汉族,滨州医学院在读硕士,主要从事生理学的研究。
  • 基金资助:
    国家自然科学基金项目(82301726),项目负责人:蒋蓉;国家自然科学基金项目(81971281),项目负责人:孙晖;山东省自然科学基金项目(ZR2022QH087),项目负责人:蒋蓉

Mechanism of depression-like behavior in chronic social defeat stress mice based on high-throughput sequencing

Zhang Di1, Zhao Jun2, Ma Guangyue1, Sun Hui1, Jiang Rong1   

  1. 1Department of Basic Medical Sciences, 2Department of Nursing (School of Gerontology), Binzhou Medical University, Yantai 264003, Shandong Province, China
  • Received:2024-12-02 Accepted:2025-02-12 Online:2026-02-18 Published:2025-06-24
  • Contact: Sun Hui, PhD, Professor, Master’s supervisor, Department of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, Shandong Province, China Co-corresponding author: Jiang Rong, PhD, Associate professor, Master’s supervisor, Department of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, Shandong Province, China
  • About author:Zhang Di, MS candidate, Department of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, Shandong Province, China
  • Supported by:
    National Natural Science Foundation of China, Nos. 82301726 (to JR) and 81971281 (to SH); Natural Science Foundation of Shandong Province, No. ZR2022QH087 (to JR)

摘要:




文题释义:
高通量测序技术:又称“下一代”测序技术,或大规模平行测序。区别于传统Sanger(双脱氧法)测序,高通量测序技术能够一次并行对大量核酸分子进行平行序列测定,通常一次测序反应能产出不低于100 Mb的测序数据。

背景:应激诱导的海马神经元受损可能是神经元结构和功能异常的基础,最终导致情绪障碍。脑组织中的G蛋白偶联受体在情绪调节过程中发挥重要作用。
目的:通过高通量测序技术与生物信息学分析慢性社会挫败应激小鼠抑郁样行为的作用机制。
方法:C57BL/6J小鼠随机分为对照组(不做特殊处理)和模型组(建立慢性社会挫败应激模型)。通过糖水偏好实验、悬尾实验和强迫游泳实验检测小鼠抑郁样行为,高架十字迷宫检测小鼠焦虑行为,社交互动实验检测小鼠社交行为,Y迷宫自发交替实验评估小鼠认知能力;免疫荧光实验检测海马脑区小胶质细胞标志物的数量;尼式染色检测海马神经元损伤情况;测序筛选海马脑区差异基因的表达和富集情况;qPCR检测海马脑区G蛋白偶联受体基因的表达情况。
结果与结论:①与对照组相比,慢性社会挫败应激小鼠出现明显的焦虑、抑郁和认知功能损害的行为学改变;②慢性社会挫败应激小鼠海马脑区神经元尼式体吸光度值比对照组明显降低;③测序结果显示应激后小鼠伴随着神经元突触结构受损;慢性社会挫败应激诱导小鼠海马脑区小胶质细胞明显激活,G蛋白偶联受体的表达明显高于对照组小鼠。结论:慢性社会挫败应激小鼠出现焦虑、抑郁和认知功能损害的行为学改变,并伴随着海马脑区发生神经病理的改变,通过高通量测序技术与生物信息学分析G蛋白偶联受体有明显的差异表达变化。

https://orcid.org/0009-0004-4574-3905 (张迪) 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 慢性社会挫败应激, 抑郁, 焦虑, 海马, GPRs, 神经元, 突触, 炎症, 认知

Abstract: BACKGROUND: Stress-induced damage to hippocampal neurons may underlie abnormalities in neuronal structure and function, ultimately leading to mood disorders. G protein-coupled receptors in brain tissue play an important role in mood regulation.
OBJECTIVE: To analyze the mechanism of depression-like behavior in chronic social defeat stress mice based on high-throughput sequencing and bioinformatics analysis. 
METHODS: C57BL/6J mice were randomly divided into control group and model group. There was no special treatment in the control group, while a mouse model of chronic social defeat stress was established in the model group. Depression-like behavior was assessed through the sucrose preference test, tail suspension test, and forced swim test. Anxiety behavior was evaluated using the elevated plus-maze, while social behavior was measured through the social interaction test. Cognitive function was assessed with the Y-maze spontaneous alternation test. Immunofluorescence staining was performed to quantify microglia markers in the mouse hippocampus, and Nissl staining was used to examine neuronal damage in mice. High-throughput sequencing was used to identify differentially expressed genes and gene enrichment in the mouse hippocampus, and qPCR was used to measure the expression of G protein-coupled receptors in the mouse hippocampus.
RESULTS AND CONCLUSION: (1) Compared with the control group, chronic social defeat stress mice showed significant behavioral impairments, including increased anxiety, depression, and cognitive deficits. (2) Additionally, the Nissl body light density in hippocampal neurons was significantly reduced in chronic social defeat stress mice. (3) Sequencing results revealed synaptic damage in the neurons after chronic social defeat stress. Microglia activation was also markedly increased in the hippocampus of CSDS mice. Furthermore, the expression of G protein-coupled receptors in the hippocampus was significantly higher in chronic social defeat stress mice compared with the control group. These findings suggest that chronic social defeat stress induces anxiety, depression, and cognitive deficits in mice, accompanied by neuropathological changes in the hippocampus, and that altered G protein-coupled receptors expression may play a key role in these behavioral and neuropathological changes.

Key words: chronic social defeat stress, depression, anxiety, hippocampus, GPRs, neurons, synapse, inflammation, cognition

中图分类号: