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基于蛋白质组学探讨丹参饮对高脂血症模型大鼠血脂异常的调
节机制
Δ
张玉昆 ,冯月男,卞敬琦,刘欣欣,肖洪彬,牛雯颖(黑龙江中医药大学实验实训中心/黑龙江中医药大学教育部
*
#
北药基础与应用研究重点实验室,哈尔滨 150040)
中图分类号 R965;R972 文献标志码 A 文章编号 1001-0408(2024)09-1070-06
DOI 10.6039/j.issn.1001-0408.2024.09.08
摘 要 目的 探讨丹参饮对高脂血症模型大鼠血脂异常的调节机制。方法 实验大鼠分为空白组(n=9,不造模)、模型组(n=8,
造模)和丹参饮组(n=9,造模)。于高脂饲料喂养第9周开始,丹参饮组大鼠灌胃相应药液(3.6 g/kg),空白组和模型组大鼠灌胃等
体积生理盐水,每天1次,连续4周。给药4周后,检测各组大鼠血浆甘油三酯(TG)、胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)
和高密度脂蛋白胆固醇(HDL-C)水平;观察大鼠肝脏组织病理形态学变化;采用TMT定量蛋白质组学分析筛选出样本间的差异
蛋白;检测大鼠肝脏组织关键差异蛋白环氧化物水解酶 2(EPHX2)、围脂滴蛋白 2(PLIN2)、过氧化物酶体增殖物激活受体 γ
(PPARγ)、糖原合成酶激酶3β(GSK-3β)表达情况。结果 与模型组比较,丹参饮组大鼠血浆TC、TG、LDL-C水平均显著降低(P<
0.05),HDL-C水平显著升高(P<0.05)。模型组大鼠肝脏组织染色不均,肝板排列紊乱,肝血窦消失,部分细胞的细胞核固缩或消
失,细胞质肿胀、融合,结缔组织增生,呈现弥散性空泡样脂肪滴改变;丹参饮组大鼠肝脏组织上述病理形态均有不同程度的改善。
差异蛋白分析结果显示,模型组与空白组比较,差异蛋白总数为298个;丹参饮组与模型组比较,差异蛋白总数为139个。与模型
组比较,丹参饮组大鼠肝脏组织中EPHX2、PLIN2蛋白表达水平均显著降低(P<0.01),GSK-3β、PPARγ蛋白表达水平均显著升高
(P<0.01)。结论 丹参饮对高脂血症模型大鼠血脂水平和肝脏病理形态学均有显著的改善作用,其调节机制可能与上调PPARγ、
GSK-3β表达和下调EPHX2、PLIN2表达有关,涉及的信号通路可能包括PPARγ信号通路。
关键词 高脂血症;丹参饮;蛋白质组学;差异蛋白;过氧化物酶体增殖物激活受体γ;糖原合酶激酶3β
Exploration of the regulatory mechanism of Danshen decoction on dyslipidemia in hyperlipidemia model
rats based on proteomics
ZHANG Yukun,FENG Yuenan,BIAN Jingqi,LIU Xinxin,XIAO Hongbin,NIU Wenying(Experimental Teaching
and Training Center, Heilongjiang University of Chinese Medicine/Key Laboratory of Basic and Applied
Research of Nothern Medicine Approved by Ministry of Education, Heilongjiang University of Chinese
Medicine, Harbin 150040, China)
ABSTRACT OBJECTIVE To explore the regulatory mechanism of Danshen decoction on dyslipidemia in hyperlipidemia model
rats. METHODS The experimental rats were divided into blank group (n=9, no modeling), model group (n=8, modeling), and
Danshen decoction group (n=9, modeling). Starting from the 9th week of feeding with the high-fat diet, rats in the Danshen
decoction group were given the corresponding medication solution (3.6 g/kg) intragastrically, while blank group and model group
were given equal volume of normal saline, once a day, for 4 consecutive weeks. After 4 weeks of administration, the plasma levels
of triglycerides (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein
cholesterol (HDL-C) were measured in each group of rats; the pathological and morphological changes of liver tissue were
observed; the differential proteins between samples were screened out by TMT quantitative proteomic analysis; the expression
levels of the key differentially expressed proteins in the liver, including epoxide hydrolase 2 (EPHX2), perilipin 2 (PLIN2),
peroxisome proliferator activated receptor γ (PPAR γ) and glycogen synthase kinase-3β (GSK-3β)were detected. RESULTS
Compared with the model group, the plasma levels of TC, TG and LDL-C in the Danshen decoction group were significantly
reduced (P<0.05) , while the level of HDL-C was
Δ 基金项目 国 家 自 然 科 学 基 金 面 上 项 目(No. 82074326,No. significantly increased (P<0.05). The liver tissue of rats in
82274405);黑龙江省中医药管理局中医药科研项目(No.ZHY2020-
model group showed uneven staining, disordered arrangement
084);国家中医药考试2022年度科研课题(No.TC2022021);黑龙江省
of liver plates, disappearance of liver sinusoids, nuclear
博士后资助项目(No.LBH-Z20195) condensation or disappearance of some cells, swelling and
*第一作者 高级实验师,博士。研究方向:方剂药理学。E-mail:
zhang520-888@163.com fusion of cytoplasm, proliferation of connective tissue, and
# 通信作者 研究员,博士。研究方向:方剂药理学。E-mail: diffuse vacuolar-like fat droplet changes. The liver tissue of
121505982@qq.com Danshen decoction group showed varying degrees of
· 1070 · China Pharmacy 2024 Vol. 35 No. 9 中国药房 2024年第35卷第9期