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脑震宁干预外周血来源外泌体对小胶质细胞诱导的神经元损伤

          的影响
                    Δ


                                                              #
                *
          高 丽 ,赵 乐,武立雅,张唯依,李 难,魏楠楠,王永辉(山西中医药大学基础医学院,山西 晋中 030619)
          中图分类号  R965;R285.5      文献标志码  A      文章编号  1001-0408(2025)19-2393-06
          DOI  10.6039/j.issn.1001-0408.2025.19.06

          摘  要  目的  研究脑震宁干预外周血来源外泌体(Exo)对小胶质细胞 BV-2 诱导的神经元细胞 HT22 损伤的影响。方法  选取
          Wistar大鼠制备脑震宁(66.83 g/kg)干预外周血来源Exo(即NZN-Exo),同法制备生理盐水和吡拉西坦(1.62 g/kg)干预外周血来
          源Exo(即KB-Exo、PLXT-Exo),并进行鉴定。以1 μg/mL脂多糖(LPS)刺激BV-2细胞,制备经LPS刺激的上清液(同法制备未经
          LPS 刺激的上清液)。将 HT22 细胞分为 KB-Exo 组(未经 LPS 刺激的上清液+KB-Exo)、模型组(即 model 组,经 LPS 刺激的上清
          液+KB-Exo)、PLXT-Exo组(经LPS刺激的上清液+PLXT-Exo)和NZN-Exo组(经LPS刺激的上清液+NZN-Exo),相应Exo的质量
          浓度均为50 μg/mL。培养24 h后,检测HT22细胞增殖情况(采用CCK-8法和EdU法),检测HT22细胞凋亡情况,观察HT22细胞
          超微结构,检测HT22细胞中白细胞介素1β(IL-1β)、IL-10、核因子κB(NF-κB)、肿瘤坏死因子α(TNF-α)含量,以及TNF-α、NOD
          样受体热蛋白结构域相关蛋白3(NLRP3)、胱天蛋白酶1(Caspase-1)、B细胞淋巴瘤2(Bcl-2)、Bcl-2相关X蛋白(Bax)的蛋白表达
          情况。结果  本研究成功制备 KB-Exo、PLXT-Exo、NZN-Exo,各 Exo 均呈现出较为典型的“杯状”轮廓和膜结构“包裹”特征。与
          KB-Exo组相比,model组的细胞增殖率(CCK-8法和EdU法)、细胞中IL-10含量和Bcl-2蛋白表达水平均显著降低(P<0.05);细胞
          凋亡率和细胞中IL-1β、TNF-α、NF-κB含量以及NLRP3、TNF-α、Caspase-1、Bax蛋白表达水平均显著升高(P<0.05);细胞体积膨
          胀,细胞膜不完整,核仁破裂,线粒体明显肿胀变形,空泡化严重。与model组相比,PLXT-Exo组、NZN-Exo组细胞上述定量指标
          均显著逆转(P<0.05);细胞核大而圆,核膜完整,线粒体空泡化减少。结论  脑震宁干预外周血来源Exo可通过抑制炎症反应和
          细胞凋亡,减轻小胶质细胞诱导的神经元细胞HT22损伤。
          关键词  脑震宁;小胶质细胞;神经元细胞;外泌体;凋亡;炎症

          Effects  of  peripheral  blood-derived  exosomes  intervened  by  Naozhenning  on  injury  of  neuron  induced  by
          microglia
          GAO Li,ZHAO Le,WU Liya,ZHANG Weiyi,LI Nan,WEI Nannan,WANG Yonghui(College of Basic Medical
          Science, Shanxi University of Chinese Medicine, Shanxi Jinzhong 030619, China)

          ABSTRACT   OBJECTIVE To study the effects of peripheral blood-derived exosomes (Exo) intervened by Naozhenning (NZN)
          on injury of neuron cells HT22 induced by microglia BV-2 cells. METHODS Wistar rats were selected to prepare peripheral blood-
          derived Exo intervened by NZN (66.83 g/kg), referred to as NZN-Exo; peripheral blood-derived Exo intervened by normal saline
          and piracetam (PLXT, 1.62 g/kg) were prepared using the same method, denoted as KB-Exo and PLXT-Exo respectively, and all
          Exo were subsequently identified. Meanwhile, BV-2 cells were stimulated with 1 μg/mL lipopolysaccharide (LPS) to prepare LPS-
          stimulated supernatant, and non-LPS-stimulated supernatant was prepared following the same protocol. HT22 cells were divided into
          four  groups:  KB-Exo  group (treated  with  non-LPS-stimulated  supernatant+KB-Exo),  model  group (treated  with  LPS-stimulated
          supernatant+KB-Exo), PLXT-Exo group (treated with LPS-stimulated supernatant+PLXT-Exo), and NZN-Exo group (treated with
          LPS-stimulated  supernatant+NZN-Exo),  with  the  concentration  of  the  corresponding  Exo  in  all  groups  being  50  μg/mL. After  24
          hours of culture, the proliferation of HT22 cells was detected by the CCK-8 assay and EdU assay; the apoptosis of HT22 cells was
          detected;  the  microstructure  of  HT22  cells  was  observed;  the  contents  of  interleukin-1β (IL-1β),  IL-10,  nuclear  factor-κB (NF-
                                                             κB),  and  tumor  necrosis  factor- α (TNF- α)  in  HT22  cells
             Δ 基金项目 国家自然科学基金项目(No.82104972);山西省基础            were  measured,  as  well  as  the  expression  levels  of  TNF- α,
          研究计划项目(No.202403021211146);山西省中医药管理局科研课题           NOD-like  receptor  thermal  protein  domain  associated  protein  3
         (No.2024ZYYB041);山西中医药大学博士科研启动基金项目(No.             (NLRP3), Caspase-1, B-cell lymphoma-2 (Bcl-2), and Bcl-2-
          2022BK019);山西中医药大学科技创新能力培育计划项目(No.
                                                             associated  X  protein (Bax).  RESULTS  KB-Exo,  PLXT-Exo
          2023PY-YS-03);山西省重点实验室建设项目(No.zyyyjs2024023)       and  NZN-Exo  were  successfully  prepared,  and  all  Exo
             *第一作者 副教授,硕士生导师,博士。研究方向:方剂的现代药
                                                             exhibited  typical  cup-shaped  contours  and  membrane-enclosed
          理作用及其物质基础。E-mail:342014263@qq.com
             # 通信作者 教授,硕士生导师,博士。研究方向:中药药理与方剂                 characteristics.  Compared  with  KB-Exo  group,  model  group
          配伍作用研究。E-mail:wyh766188@sina.com                   showed significantly decreased cell proliferation rates (detected


          中国药房  2025年第36卷第19期                                              China Pharmacy  2025 Vol. 36  No. 19    · 2393 ·
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