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·药学研究·
芒柄花素调节 Hippo/YAP 信号通路对炎症性肠病大鼠肠上皮细
胞凋亡的影响
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谢 栋 ,刘媛媛 ,李正翔 ,袁恒杰 ,曹晓沧 (1.天津医科大学总医院药剂科,天津 300052;2.天津医科大学
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基础医学院遗传学系,天津 300070;3.天津医科大学总医院消化科,天津 300052)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2024)13-1564-06
DOI 10.6039/j.issn.1001-0408.2024.13.04
摘 要 目的 探究芒柄花素(FMN)对炎症性肠病(IBD)大鼠肠上皮细胞凋亡的影响及可能机制。方法 采用三硝基苯磺酸诱导
的方法构建大鼠IBD模型。将造模成功的48只大鼠按照随机数字表法分为模型组(生理盐水),低、高剂量FMN组(20、40 mg/kg
FMN)和高剂量FMN+YAP抑制剂Verteporfin(VTPF)组(40 mg/kg FMN+10 mg/kg VTPF),每组12只;另取12只大鼠设为正常组
(生理盐水);每天给药/生理盐水1次,连续7 d。末次给药后,对大鼠疾病活动指数(DAI)进行评分;测量大鼠结肠长度;观察大鼠
结肠组织的病理学变化;检测大鼠血清中肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)、IL-10水平;检测大鼠肠上皮细胞的凋亡
情况;检测大鼠结肠组织中Yes相关蛋白(YAP)、切割型胱天蛋白酶3(cleaved-caspase-3)、B细胞淋巴瘤2(Bcl-2)、Bcl-2相关X蛋
白(Bax)表达。结果 与正常组比较,模型组大鼠DAI评分,TNF-α、IL-6水平,肠上皮细胞凋亡率,cleaved-caspase-3、Bax蛋白表达
水平均显著升高(P<0.05);结肠长度显著变短(P<0.05);IL-10水平和YAP、Bcl-2蛋白表达水平均显著降低(P<0.05);结肠组织
出现细胞形态异常、排列紊乱,炎症细胞浸润等病理学变化。与IBD组比较,低剂量FMN组、高剂量FMN组大鼠上述指标水平均
显著改善(P<0.05),且具有剂量依赖性(P<0.05);而加入 VTPF 后,显著逆转了 FMN 对 IBD 大鼠上述指标的改善作用(P<
0.05)。结论 FMN可能是通过抑制Hippo/YAP信号通路,促进YAP的表达,进而抑制IBD大鼠肠上皮细胞凋亡。
关键词 芒柄花素;Hippo/YAP信号通路;炎症性肠病;肠上皮细胞;细胞凋亡
Effects of formononetin on the apoptosis of intestinal epithelial cells in rats with inflammatory bowel
disease by regulating the Hippo/YAP signaling pathway
XIE Dong ,LIU Yuanyuan ,LI Zhengxiang ,YUAN Hengjie ,CAO Xiaocang(1. Dept. of Pharmacy, Tianjin
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Medical University General Hospital, Tianjin 300052, China;2. Dept. of Genetics, School of Basic Medical
Sciences, Tianjin Medical University, Tianjin 300070, China;3. Dept. of Gastroenterology, Tianjin Medical
University General Hospital, Tianjin 300052, China)
ABSTRACT OBJECTIVE To investigate the effects of formononetin (FMN) on the apoptosis of intestinal epithelial cells in
inflammatory bowel disease (IBD) rats and its possible mechanism. METHODS IBD rat model was constructed by using
trinitrobenzene sulfonic acid (TNBS) induction. Forty-eight rats with successful modeling were divided into model group (normal
saline), low-dose and high-dose FMN groups (20 and 40 mg/kg FMN), and high-dose FMN+YAP inhibitor Verteporfin (VTPF)
group (40 mg/kg FMN+10 mg/kg VTPF), with 12 rats in each group. Another 12 rats were set as the normal group (normal
saline). They were given drug/normal saline, once a day, for 7 consecutive days. After the last administration, the disease activity
index (DAI) of rats was calculated, and the colon length of rats in each group was measured. The pathological changes in the
colon tissue of rats were observed. The levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and IL-10 in serum were
detected, and the apoptosis of intestinal epithelial cells was detected. The expressions of Yes associated protein (YAP), cleaved
cysteine-containing aspartate proteolytic enzyme 3 (cleaved-caspase-3), B-cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein
(Bax) were detected in colon tissue of rats. RESULTS Compared with the normal group, DAI score, the levels of TNF-α and IL-
6, the apoptotic rate of intestinal epithelial cells, and the expressions of cleaved-caspase-3 and Bax protein in the model group were
increased greatly (P<0.05); the length of the colon was
Δ 基金项目 国家自然科学基金面上项目(No.82270565)
*第一作者 主管药师,硕士。研究方向:消化系统疾病的临床药 greatly decreased (P<0.05), and the serum level of IL-10 and
the protein expressions of YAP and Bcl-2 were greatly reduced
学。E-mail:xiedongsuper@163.com
# 通信作者 主任医师,博士生导师,博士。研究方向:炎症性肠病 (P<0.05). The cell morphology of colon tissue was
和消化道免疫疾病的诊断和治疗。E-mail:doccaoxc@163.com abnormal, with disordered arrangement and inflammatory cell
· 1564 · China Pharmacy 2024 Vol. 35 No. 13 中国药房 2024年第35卷第13期