南方医科大学学报 ›› 2026, Vol. 46 ›› Issue (8): 1823-1834.doi: 10.12122/j.issn.1673-4254.2026.08.10

• • 上一篇    

柴胡疏肝散抑制C3/C3aR介导小胶质细胞M1极化改善绝经综合征肝郁证模型小鼠的海马突触可塑性

钟瑶1,2(), 蔡晓诗1,2, 李欣媛1,2, 王素英1,2, 吴忧1,2, 陈朝玺3, 王悦1,2, 沈冰榕1,2, 龚琳1,2, 沈建英1,2, 闵莉1,2, 梁文娜1,2()   

  1. 1.福建中医药大学,中医学院,福建 福州 350122
    2.福建中医药大学,中医证研究基地,福建 福州 350122
    3.石家庄平安医院,河北 石家庄 050011
  • 收稿日期:2026-01-07 出版日期:2026-08-20 发布日期:2026-08-01
  • 通讯作者: 梁文娜 E-mail:1603553346@qq.com;18960868801@163.com
  • 作者简介:钟 瑶,在读硕士研究生,E-mail: 1603553346@qq.com
  • 基金资助:
    国家自然科学基金(82274409);国家自然科学基金(82174248);福建省自然科学基金项目(2023J01868)

Chaihu Shugan San inhibits C3/C3aR-mediated microglial M1 polarization to improve hippocampal synaptic plasticity in mice with menopausal syndrome with liver qi stagnation

Yao ZHONG1,2(), Xiaoshi CAI1,2, Xinyuan LI1,2, Suying WANG1,2, You WU1,2, Zhaoxi CHEN3, Yue WANG1,2, Bingrong SHEN1,2, Lin GONG1,2, Jianying SHEN1,2, Li MIN1,2, Wenna LIANG1,2()   

  1. 1.College of Traditional Chinese Medicine, Shijiazhuang 050011, China
    2.Key Laboratory of TCM Health Status Identification of Fujian Province, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China, Shijiazhuang 050011, China
    3.Shijiazhuang Ping'an Hospital, Shijiazhuang 050011, China
  • Received:2026-01-07 Online:2026-08-20 Published:2026-08-01
  • Contact: Wenna LIANG E-mail:1603553346@qq.com;18960868801@163.com
  • Supported by:
    National Natural Science Foundation of China(82274409)

摘要:

目的 探讨柴胡疏肝散调节C3/C3aR介导M1型小胶质细胞极化改善绝经综合征(MPS)肝郁证的作用机制。 方法 将56只SPF级雌性C57BL/6小鼠按照体质量分层随机分为假手术组(n=13)和去势手术组(n=43)。手术过程中假手术组小鼠死亡1只,去势手术组小鼠死亡4只、3只造模未成功,故予以剔除。去势手术组小鼠摘除双侧卵巢建立绝经期模型后,再分为绝经组、绝经肝郁组和柴胡疏肝散组,12只/组。其中,绝经肝郁组和柴胡疏肝散组均采用双侧卵巢去势联合慢性温和不可预知应激(CUMS)法建立MPS肝郁证模型。柴胡疏肝散组给予6.47 g/kg柴胡疏肝散混悬液灌胃28 d,其余各组小鼠灌胃等剂量生理盐水。通过阴道脱落细胞涂片和行为学评价模型;ELISA法检测血清性激素、神经递质,血清和海马炎症因子水平;HE染色法观察海马组织形态;高尔基染色法观察海马神经元树突棘形态;免疫荧光法检测海马CA1区小胶质细胞相关标志物、突触可塑性相关蛋白;Western blotting检测海马补体C3(C3)/补体C3a受体(C3aR)通路相关蛋白。 结果 与假手术组比较,去势小鼠动情周期紊乱,绝经肝郁组小鼠表现出抑郁样行为(P<0.01);血清性激素和神经递质水平异常(P<0.01),血清和海马炎症因子含量增加(P<0.01);海马CA1区神经元细胞数量减少、排列紊乱且核固缩,树突棘数量减少;海马CA1区小胶质细胞相关标志物表达增加(P<0.01)、突触可塑性相关蛋白荧光表达降低(P<0.01);C3/C3aR通路相关蛋白表达增加(P<0.05,P<0.01)。与绝经肝郁组比较,柴胡疏肝散干预后可改善MPS肝郁小鼠的抑郁样行为(P<0.05,P<0.01);血清性激素和神经递质水平逆转(P<0.05,P<0.01),血清和海马炎症因子含量降低(P<0.01);海马CA1区神经元细胞数量增加、排列有序,树突棘数量增加、形态改善;海马CA1区小胶质细胞相关标志物表达逆转,突触可塑性相关蛋白荧光强度增强(P<0.01);海马C3/C3aR通路相关蛋白表达下调(P<0.05,P<0.01)。 结论 柴胡疏肝散可以改善MPS肝郁模型小鼠海马突触可塑性,其作用机制与抑制C3/C3aR信号通路介导小胶质细胞M1极化有关。

关键词: 绝经综合征, 肝郁证, 柴胡疏肝散, 小胶质细胞, C3/C3aR信号通路

Abstract:

Objective To investigate the therapeutic mechanism of Chaihu Shugan San (CSS) for treatment of menopausal syndrome (MPS) with liver qi stagnation. Methods Fifty-six female C57BL/6 mice were randomized into sham-operated group (n=13) and bilateral ovariectomy (OVX) groups (n=43), and the latter group was further randomized equally into menopausal group, menopausal liver qi stagnation (MPS+CUMS) group subjected to chronic unpredictable mild stress (CUMS), and CSS treatment group (with CSS gavage at daily dose of 6.47 g/kg for 28 days). MPS model establishment was validated by vaginal smears and behavior tests. The levels of sex hormones, neurotransmitters, and inflammatory cytokines in the serum and hippocampus were measured by ELISA. Hippocampal morphology was observed using HE and Golgi staining, and immunofluorescence staining and Western blotting were used to detect the expressions of microglial markers, synaptic plasticity proteins and C3/C3aR pathway proteins in the hippocampal CA1 region. Results The OVX mice showed disrupted estrous cycles. The MPS+CUMS mice exhibited obvious depression-like behaviors, abnormal sex hormones and neurotransmitters, elevated inflammatory factors, hippocampal CA1 neuronal loss with disordered arrangement and pyknosis, reduced dendritic spines, increased microglial markers, decreased synaptic plasticity proteins, and upregulated C3/C3aR pathway. All these changes were significantly improved or corrected after CSS treatment in MPS+CUMS mice. Conclusion CSS alleviates MPS with liver qi stagnation possibly by inhibiting C3/C3aR-mediated M1 microglial polarization and improving synaptic plasticity.

Key words: menopausal syndrome, liver qi stagnation, Chaihu Shugan San, microglia, C3/C3aR pathway