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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

