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安五脂素改善大鼠肝纤维化的效果及机制
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何秀义 ,安祯祥 1, 2 # ,何远利 ,刘 义 ,何 松 (1.贵州中医药大学第一临床医学院,贵阳 550001;2.贵州
中医药大学第一附属医院消化内科,贵阳 550001)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2023)20-2459-06
DOI 10.6039/j.issn.1001-0408.2023.20.03
摘 要 目的 探讨安五脂素改善大鼠肝纤维化的效果及作用机制。方法 将50只SD大鼠随机分为正常组,模型组,秋水仙碱片
组(0.1 mg/kg),安五脂素高、低剂量组(2.8、0.7 mg/kg),每组10只。除正常组外,其余各组大鼠均腹腔注射50% CCl4橄榄油混合
溶液复制肝纤维化大鼠模型。造模结束后,各组大鼠从第9周开始灌胃相应药物或蒸馏水,每日1次,连续给药4周。实验期间观
察大鼠一般情况;计算大鼠肝指数;采用比色法检测大鼠血清中丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、超氧化物歧化酶
(SOD)、丙二醛(MDA)的含量;采用HE染色和Masson染色观察大鼠肝组织病理形态学和肝纤维化情况;采用Western blot法检测
肝组织中磷脂酰肌醇3-激酶(PI3K)/蛋白激酶B(Akt)通路及凋亡相关蛋白表达水平。结果 与正常组比较,模型组大鼠饮食量下
降,被毛稀疏、蓬乱,反应迟钝,体重增长速率减慢或体重降低;肝指数显著上升(P<0.01);大鼠血清中ALT、AST、MDA含量均显
著升高,SOD 含量显著降低(P<0.01);HE 染色及 Masson 染色均观察到大鼠肝组织中有大量纤维增生,胶原容积分数显著升高
(P<0.01);大鼠肝组织中PI3K、Akt、磷酸化Akt、B细胞淋巴瘤2(Bcl-2)蛋白表达水平均显著下降,Bcl-2相关X蛋白表达水平显
著升高(P<0.01)。与模型组比较,安五脂素高、低剂量组及秋水仙碱片组上述指标均显著逆转(P<0.01或P<0.05)。结论 安五
脂素可能是通过激活PI3K/Akt信号通路降低肝纤维化氧化应激反应、抑制肝细胞凋亡,发挥抗肝纤维化的作用。
关键词 安五脂素;肝纤维化;磷脂酰肌醇3-激酶/蛋白激酶B通路;氧化应激;凋亡
The effect and mechanism of anwulignan on improving hepatic fibrosis in rats
HE Xiuyi ,AN Zhenxiang ,HE Yuanli ,LIU Yi ,HE Song (1. The First Clinical Medical College, Guizhou
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University of Traditional Chinese Medicine, Guiyang 550001, China;2. Dept. of Gastroenterology, the First
Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China)
ABSTRACT OBJECTIVE To investigate the effect and mechanism of anwulignan on improving hepatic fibrosis in rats.
METHODS Fifty SD rats were randomly divided into the normal group, model group, colchicine tablet group (0.1 mg/kg), and
anwulignan high-dose and low-dose groups (2.8 and 0.7 mg/kg), with 10 rats in each group. Except for the normal group, all
groups of rats were intraperitoneally injected with 50% CCl4 olive oil mixed solution to replicate the rat model of liver fibrosis. At
the end of the modeling, rats in each group were given the corresponding drugs or distilled water intragastrically from the 9th
week, once a day, for 4 weeks consecutively. During the experimental period, the general condition of the rats was observed; the
liver index was calculated; the serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), superoxide
dismutase (SOD) and malondialdehyde (MDA) were detected by colorimetric assay; the pathomorphology of the liver tissues and
liver fibrosis were observed by HE staining and Masson staining; Western blot was used to detect the expression levels of
phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) pathway and apoptosis-related proteins in liver tissues. RESULTS
Compared with the normal group, the dietary amount of rats in the model group decreased, with sparse and disheveled fur, slow
response, and a slower rate of weight growth or weight loss; the liver index was significantly increased (P<0.01); the serum
levels of ALT, AST and MDA were significantly increased, and the SOD level was significantly decreased (P<0.01); HE and
Masson staining showed that a large amount of fibrous proliferation was present in the liver tissues of the rats, and the collagen
volume fraction was significantly increased (P<0.01); the protein expressions of PI3K, Akt, phosphorylated Akt and B-cell
lymphoma (Bcl-2) were down-regulated significantly, while the protein expression of Bcl-2-associated X protein was increased
significantly (P<0.01). Compared with the model group, the above indexes of the anwulignan high-dose and low-dose groups and
the colchicine tablets group were all reversed significantly(P<
Δ 基金项目 国 家 自 然 科 学 基 金 项 目(No. 82160893,No.
0.01 or P<0.05). CONCLUSIONS Anwulignan may reduce
81760865);第五批全国中医临床优秀人才研修项目(No. 国中医药人
oxidative stress and inhibit hepatocyte apoptosis by activating
教函〔2022〕1号);贵州中医药大学国家与省级科技创新人才团队培育
the PI3K/Akt signaling pathway, and play the role of anti-
项目(No.贵中医TD合字〔2022〕005号)
*第一作者 硕士研究生。研究方向:中西医结合防治消化系统疾 hepatic fibrosis.
病的基础及临床。E-mail:1907590161@qq.com KEYWORDS Anwulignan; hepatic fibrosis; PI3K/Akt pathway;
# 通信作者 主任医师,教授,博士生导师,博士。研究方向:中西 oxidative stress; apoptosis
医结合防治消化系统疾病的基础及临床。E-mail:407206115@qq.com
中国药房 2023年第34卷第20期 China Pharmacy 2023 Vol. 34 No. 20 · 2459 ·