南方医科大学学报 ›› 2025, Vol. 45 ›› Issue (10): 2146-2159.doi: 10.12122/j.issn.1673-4254.2025.10.11

• • 上一篇    

加味柴胡桂枝汤通过抑制JAK2/STAT3信号通路改善慢性不可预见性温和应激模型小鼠的焦虑和抑郁状态

梁晓涛1(), 梁小珊2, 熊一凡1, 谢诗如1, 朱晓煜1, 谢炜1,2()   

  1. 1.南方医科大学中医药学院,广东 广州 510515
    2.南方医科大学南方医院中医科,广东 广州 510515
  • 收稿日期:2025-07-25 出版日期:2025-10-20 发布日期:2025-10-24
  • 通讯作者: 谢炜 E-mail:1092296938@qq.com;xieweizn@126.com
  • 作者简介:梁晓涛,医师,博士,E-mail: 1092296938@qq.com
  • 基金资助:
    国家自然科学基金(82405378);第二届全国名中医工作室(G724290126);中国博士后科学基金(2024M761351);中国博士后科学基金(2025T181075);重大疑难疾病中西医临床协作项目

Modified Chaihu Guizhi Decoction alleviates anxiety- and depression-like behaviors in mice with chronic unpredictable mild stress by inhibiting the JAK2/STAT3 signaling pathway

Xiaotao LIANG1(), Xiaoshan LIANG2, Yifan XIONG1, Shiru XIE1, Xiaoyu ZHU1, Wei XIE1,2()   

  1. 1.School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
    2.Department of Traditional Chinese Medicine, Nanfang Hospital of Southern Medical University, Guangzhou 510515, China
  • Received:2025-07-25 Online:2025-10-20 Published:2025-10-24
  • Contact: Wei XIE E-mail:1092296938@qq.com;xieweizn@126.com
  • Supported by:
    National Natural Science Foundation of China(82405378)

摘要:

目的 探讨加味柴胡桂枝汤(MCGD)对慢性不可预见性温和应激模型(CUMS)小鼠焦虑抑郁的干预作用及机制。 方法 通过文献检索获取加味柴胡桂枝汤的主要化学成分,使用多重数据库分析预测药理机制。动物实验验证:选用雄性SPF C57BL/6J小鼠,每日给予小鼠2次随机应激刺激,共持续28 d,制备CUMS模型。以加味柴胡桂枝汤灌胃或氟西汀腹腔注射进行干预,根据干预方式的不同将小鼠分为对照组(Control)、慢性不可预见性温和应激模型组(CUMS)、氟西汀阳性对照组(FLX)、加味柴胡桂枝汤低剂量组(MCGD-L)、加味柴胡桂枝汤高剂量组(MCGD-H),15只/组。利用蔗糖偏好、强迫游泳实验评估小鼠抑郁状态,利用旷场、高架十字实验评估小鼠焦虑状态,RT-qPCR检测时钟基因、炎症因子,Western blotting检测JAK2/STAT3通路表达水平,免疫荧光检测小胶质细胞的活化水平。 结果 网络药理学结果显示,加味柴胡桂枝汤改善焦虑抑郁的主要活性成分为槲皮素、金合欢素、芒柄花素、川陈皮素、黄芩素等;GO功能富集分析共得到607条信号通路,其中生物过程447条,细胞组分61条,分子功能99条;KEGG富集分析显示,加味柴胡桂枝汤改善焦虑抑郁的通路主要涉及JAK2/STAT3和NF-κB信号通路。动物实验成功构建CUMS模型,氟西汀阳性对照组和加味柴胡桂枝汤治疗组小鼠焦虑、抑郁状态减轻。加味柴胡桂枝汤可降低Iba1的表达(P<0.01),改善炎症相关指标(P<0.01),逆转时钟基因昼夜节律紊乱(P<0.01);下调JAK2、p-STAT3、p-NF-κB、IL-1β、IL-6蛋白表达水平(P<0.01)。 结论 加味柴胡桂枝汤能有效调节炎症通路,抑制JAK2/STAT3信号转导和小胶质细胞过度活化,改善焦虑抑郁状态。

关键词: 加味柴胡桂枝汤, 慢性不可预见性温和应激模型, JAK2/STAT3, 网络药理学, 焦虑, 抑郁

Abstract:

Objective To investigate the mechanisms of Modified Chaihu Guizhi Decoction (MCGD) for ameliorating anxiety- and depression-like behaviors in a mouse model of chronic unpredictable mild stress (CUMS). Methods The main chemical constituents of MCGD were identified through literature review, and network pharmacology analysis was performed to predict the potential pharmacological mechanisms of MCGD. For in vivo validation, male C57BL/6J mice were randomized into control group, CUMS model group, fluoxetine (FLX) treatment group, and low- and high-dose MCGD treatment groups (n=15), and in all but the control group, CUMS models were established by daily exposure to two randomized stressors for 28 consecutive days. Starting from 3 days prior to modeling, MCGD and fluoxetine treatments were administered daily via gavage and intraperitoneal injection, respectively. Depression- and anxiety-like behaviors of the mice were assessed using sucrose preference test, forced swim test, open field test and elevated plus maze test. The changes in mRNA expressions of the clock genes and inflammatory markers and expressions of the JAK2/STAT3 signaling proteins were detected using RT-qPCR and Western blotting, and immunofluorescence staining was used to detect microglia activation in the mice. Results The key active compounds in MCGD identified by network pharmacology analysis included quercetin, acacetin, formononetin, nobiletin, and baicalein. GO analysis identified 607 enriched pathways, and KEGG pathway enrichment revealed significant involvement of the JAK2/STAT3 and NF-κB signaling pathways. In the mouse models of CUMS, treatment with both fluoxetine and MCGD significantly alleviated anxiety- and depression-like behaviors. MCGD treatment significantly reduced Iba1 expression, improved the inflammatory markers, reversed the decrease in clock gene circadian rhythm amplitude, and obviously downregulated the expressions of JAK2, p-STAT3, p-NF-κB, IL-1β, and IL-6 proteins. Conclusion MCGD effectively alleviates anxiety- and depression-like behaviors in CUMS mice by modulating the inflammatory pathways and inhibiting the JAK2/STAT3 signaling pathway.

Key words: Modified Chaihu Guizhi Decoction, chronic unpredictable mild stress model, JAK2/STAT3, network pharmacology, anxiety, depression