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告达庭对大鼠肝损伤的改善作用机制研究
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常志惠 1, 2* ,补 阳 ,刘 茜 ,马 倩 ,宋 捷 ,孙 娥 ,韦英杰 ,罗 毅 ,谭晓斌 (1.南京中医药
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大学第三临床医学院,南京 210028;2.南京中医药大学附属连云港市中医院药学部,江苏 连云港 222002;
3.中国中医科学院江苏分院/江苏省中医药研究院国家中医药管理局中药口服释药系统重点研究室,南京
210028; 4.南京中医药大学附属中西医结合医院肿瘤科,南京 210028)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2023)05-0531-06
DOI 10.6039/j.issn.1001-0408.2023.05.04
摘 要 目的 探讨告达庭改善大鼠肝损伤的作用机制。方法 将SD大鼠随机分为空白组、模型组和告达庭低、高剂量组(25、50
mg/kg),每组6只。采用腹腔注射(每周3次,连续8周)二乙基亚硝胺(DEN)复制大鼠肝损伤模型。造模第5周,大鼠灌胃相应药
物或0.5%羧甲基纤维素钠,连续4周。检测大鼠血清中肝功能指标[丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、总蛋白(TP)和
总胆红素(TBI)]及炎症因子[白细胞介素6(IL-6)、肿瘤坏死因子α(TNF-α)、IL-1β]水平,观察大鼠肝脏组织病理学形态变化,检测
肝脏组织中核因子κB(NF-κB)、78 kDa葡糖调节蛋白(Grp78)蛋白阳性表达水平,检测肝脏组织中内质网应激相关蛋白Grp78、
C/EBP同源蛋白(CHOP)、转录激活因子 6(ATF6)、肌醇需求激酶 1α(IRE1α)的表达水平和蛋白激酶 R 样内质网激酶(PERK)
磷酸化水平。结果 与空白组比较,模型组大鼠血清中ALT、AST、TBI、IL-6、TNF-α、IL-1β水平和肝脏组织中NF-κB、Grp78蛋白
阳性表达水平以及Grp78、CHOP、ATF6 、IRE1α蛋白表达水平和PERK蛋白磷酸化水平均显著升高(P<0.05),血清中TP水平显
著降低(P<0.05);肝小叶结构紊乱,肝细胞肿胀,细胞间分界不明显,且伴随炎症细胞浸润。与模型组相比,告达庭各剂量组大鼠
上述大部分指标显著逆转(P<0.05);肝小叶结构较完整清晰,细胞排列趋整齐,炎症细胞浸润也有所减少。结论 告达庭对DEN
所致大鼠肝损伤具有明显的改善作用,其作用机制可能与抑制内质网应激和炎症反应有关。
关键词 内质网应激;告达庭;炎症;肝损伤;二乙基亚硝胺
Study on improvement mechanism of caudatin on liver injury in rats
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CHANG Zhihui ,BU Yang ,LIU Qian ,MA Qian ,SONG Jie ,SUN E ,WEI Yingjie ,LUO Yi ,TAN
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Xiaobin (1. Third Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing 210028, China;
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2. Dept. of Pharmacy, Lianyungang Hospital of TCM Affiliated to Nanjing University of Chinese Medicine,
Jiangsu Lianyungang 222002, China;3. Jiangsu Branch of China Academy of Traditional Chinese Medicine/Key
Laboratory of New Drug Delivery Systems of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese
Medicine, Nanjing 210028, China;4. Dept. of Oncology, the Affiliated Hospital of Integrated Chinese and
Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China)
ABSTRACT OBJECTIVE To investigate the improvement mechanism of caudatin on liver injury of rats. METHODS SD rats
were randomly divided into blank group, model group, caudatin low-dose and high-dose groups (25, 50 mg/kg), with 6 rats in
each group. Diethylnitrosamine (DEN) was injected intraperitoneally three times per week for eight weeks to establish liver injury
model of rats. At 5th week of modeling, the rats received relevant medicine or 0.5% sodium carboxymethylcellulose intragastrically
for 4 weeks. The levels of liver function indexes [alanine transaminase (ALT), aspartate transaminase (AST), total protein (TP)
and total bilirubin (TBI)] and inflammatory factors [interleukin (IL-6), tumor necrosis factor α (TNF-α), IL-1β] in serum were
detected; the histopathological morphological changes of rat liver were observed; the positive protein expressions of nuclear factor
κB (NF-κB) and 78 kDa glucose regulatory protein (Grp78)
Δ 基金项目 国家自然科学基金资助项目(No.81773947);国家中 in liver tissue were also determined; the expressions of
医药管理局重点研究室建设项目(No.2022GJJZDYJS-01);江苏省医 endoplasmic reticulum stress-related protein Grp78, C/EBP
学创新团队项目(No.CXTDB2017003)
homologous protein (CHOP), activating transcription factor 6
*第一作者 副主任药师。研究方向:中药活性研究及质量控制。
E-mail:1456276045@qq.com (ATF6) and inositol requiring enzyme 1α (IRE1α) and the
# 通信作者 主任医师,博士。研究方向:肿瘤的基础研究及中西 level of protein kinase R-like endoplasmic reticulum kinase
医结合临床。电话:025-856371215。E-mail:robertluoyi@126.com (PERK) in liver tissue were detected. RESULTS Compared
中国药房 2023年第34卷第5期 China Pharmacy 2023 Vol. 34 No. 5 · 531 ·