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牡荆苷对溃疡性结肠炎小鼠炎症的改善作用及机制
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          周 林 ,夏鹏飞 ,刘毓玲 ,孟志超 ,李 耕 ,喻媛媛(1.武汉市中医医院病理科,武汉 430050;2.武汉市
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          中医医院脾胃肝胆病科,武汉 430050)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2026)06-0758-06
          DOI  10.6039/j.issn.1001-0408.2026.06.11
          摘   要  目的  探讨牡荆苷对溃疡性结肠炎(UC)小鼠炎症的改善作用及潜在机制。方法  以连续饮用3%葡聚糖硫酸钠溶液5 d
          的方式构建UC小鼠模型,并将造模成功的小鼠随机分为UC组,牡荆苷低、高剂量组(牡荆苷-L、牡荆苷-H组,40、80 mg/kg),美沙
          拉嗪组(400 mg/kg),牡荆苷-H+重组锯齿样典型 Notch 配体 1(rJagged-1)组(牡荆苷-H+rJagged-1 组,80 mg/kg 牡荆苷+1 mg/kg
          rJagged-1),每组12只;另取12只正常小鼠,作为对照(CK)组。各组小鼠灌胃并腹腔注射相应药液或相应药液和生理盐水,每天1
          次,连续7 d。观察各组小鼠实验期间的一般情况;末次给药24 h后,评价各组小鼠的疾病活动指数(DAI)评分,观察结肠组织病
          理形态并进行病理评分,检测脾脏和结肠组织中巨噬细胞极化水平以及结肠组织中白细胞介素6(IL-6)、IL-10、肿瘤坏死因子α
         (TNF-α)、转化生长因子β1 (TGF-β1 )、Jagged-1、Notch1、Notch胞内域(NICD)蛋白的表达量。结果  与UC组比较,牡荆苷-L组、牡
          荆苷-H组、美沙拉嗪组小鼠摄食和饮水减少、毛发无光泽等症状及上皮细胞脱落、炎症细胞浸润等病理改变均明显改善;其DAI
          评分,结肠组织病理评分,脾脏组织中M1型巨噬细胞含量、M1/M2型巨噬细胞比例,结肠组织中M1型巨噬细胞比例和IL-6、TNF-
          α、Jagged-1、Notch1、NICD蛋白的表达量均显著降低;脾脏组织中M2型巨噬细胞含量以及结肠组织中M2型巨噬细胞比例和IL-
          10、TGF-β1蛋白的表达量均显著升高(P<0.05),且牡荆苷-H组、美沙拉嗪组的改善效果显著优于牡荆苷-L组(P<0.05)。与牡荆
          苷-H 组比较,牡荆苷-H+rJagged-1 组小鼠上述症状及病理改变均有所加重,各定量指标均显著逆转(P<0.05)。结论  牡荆苷对
          UC小鼠炎症具有改善作用,上述作用与其抑制Jagged-1/Notch1通路、调控巨噬细胞极化(抑制M1型极化、促进M2型极化)有关。
          关键词  牡荆苷;溃疡性结肠炎;炎症;巨噬细胞;极化;Jagged-1/Notch1通路

          Ameliorative effect and mechanism of vitexin on inflammation in ulcerative colitis mice
          ZHOU Lin ,XIA Pengfei ,LIU Yuling ,MENG Zhichao ,LI Geng ,YU Yuanyuan(1.  Dept.  of  Pathology,
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          Wuhan  Hospital  of Traditional  Chinese  Medicine, Wuhan  430050,  China;2.  Dept.  of  Gastroenterology, Wuhan
          Hospital of Traditional Chinese Medicine, Wuhan 430050, China)
          ABSTRACT    OBJECTIVE  To  explore  the  ameliorative  effect  and  potential  mechanism  of  vitexin  on  inflammation  in  ulcerative
          colitis (UC)  mice.  METHODS  The  UC  mice  model  was  established  by  continuous  administration  of  3%  dextran  sulfate  sodium
          solution  for  5  days.  Mice  with  successful  modeling  were  randomly  divided  into  UC  group,  vitexin  low-  and  high-dose  groups
         (vitexin-L  and  vitexin-H  groups,  40,  80  mg/kg),  mesalazine  group (400  mg/kg),  and  vitexin-H+recombinant  Jagged  canonical
          Notch  ligand  1 (rJagged-1)  group (vitexin-H+rJagged-1  group,  80  mg/kg  vitexin+1  mg/kg  rJagged-1),  with  12  mice  in  each
          group.  Another  12  normal  mice  were  used  as  the  control (CK)  group.  Mice  in  each  group  were  administered  the  corresponding
          drugs  or  the  corresponding  drugs  and  normal  saline  by  gavage  and  intraperitoneal  injection  once  daily  for  7  consecutive  days.
          General  conditions  were  observed  during  the  experiment.  At  24  h  after  the  last  administration,  the  disease  activity  index (DAI)
          score  was  evaluated.  Colonic  histopathological  morphology  was  observed  and  scored.  Macrophage  polarization  levels  in  the  spleen
          and  colon  tissues  were  measured.  The  protein  expressions  of  interleukin-6 (IL-6),  IL-10,  tumor  necrosis  factor- α (TNF- α),
          transforming growth factor-β1 (TGF-β1 ), Jagged-1, Notch1 and Notch intracellular domain (NICD) in colonic tissues were determined.
          RESULTS Compared with the UC group, the symptoms (reduced food and water intake, dull fur, etc.) and pathological changes
         (epithelial  cell  shedding,  inflammatory  cell  infiltration,  etc.)  were  significantly  improved  in  the  vitexin-L,  vitexin-H  and
          mesalazine  groups.  DAI  scores,  colonic  histopathological  scores,  M1  macrophage  contents  in  spleen  tissue,  M1/M2  macrophage
          ratios, M1 macrophage proportions in colon tissue, and protein expressions of IL-6, TNF-α, Jagged-1, Notch1 and NICD in colon
                                                              tissue  were  significantly  decreased (P<0.05).  Meanwhile,  the
              Δ  基金项目 湖 北 省 中 医 药 管 理 局 中 医 药 科 研 项 目(No.     M2  macrophage  contents  in  spleen  tissue,  M2  macrophage
          ZY2025L071)                                         proportions  in  colon  tissue,  and  protein  expressions  of  IL-10
             *第一作者 副主任医师,硕士。研究方向:病理诊断和分子诊断。
                                                              and  TGF-β1  in  colon  tissue  were  significantly  increased (P<
          E-mail:oltgob@163.com
              # 通信作者 副主任医师。研究方向:炎症性肠病内镜诊疗及中西                  0.05). Moreover, the improvement effects in the vitexin-H and
          医结合诊疗。E-mail:jmdcp4@163.com                         mesalazine  groups  were  significantly  superior  to  those  in  the


          · 758 ·    China Pharmacy  2026 Vol. 37  No. 6                               中国药房  2026年第37卷第6期
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