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·药学研究·
基于 Cav-1/NF-κB 通路探讨调脾护心方抗动脉粥样硬化的作用
机制 Δ
林 潼 ,石础硕 ,孙治中 ,纪树亮 ,温俊茂 ,陈乾英 ,孙伟鹏 ,张 填 ,周小琦 ,李俊哲 (1.广州中医药大
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学第一临床医学院,广州 510405;2.广东省中医院大学城住院部心血管二科,广州 510006)
中图分类号 R285.5;R-332 文献标志码 A 文章编号 1001-0408(2019)02-0165-05
DOI 10.6039/j.issn.1001-0408.2019.02.05
摘 要 目的:研究调脾护心方对载脂蛋白基因敲除(ApoE-/-)小鼠动脉粥样硬化(AS)的影响,并探讨其作用机制。方法:将
40只雄性ApoE-/-小鼠分为空白组、模型组、辛伐他汀组(阳性对照,5 mg/kg)以及调脾护心方低、高剂量组(50、150 mg/kg),每
组8只。除空白组小鼠给予普通饲料外,其余各组小鼠均给予高脂饲料以复制AS模型。造模后,各给药组小鼠均灌胃相应药物,
空白组和模型组小鼠均灌胃等容生理盐水,每天 1 次,连续 12 周。末次给药后,采用分光光度法检测各组小鼠血清总胆固醇
(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)水平,采用硝酸酶还原法检测血清一氧化氮
(NO)水平;采用酶联免疫吸附测定法检测血清白细胞介素6(IL-6)、血管细胞黏附分子1(VCAM-1)水平;分离胸主动脉,以苏木
精-伊红染色,观察各组小鼠胸主动脉斑块形成情况,并计算校正斑块面积;采用蛋白质印迹法检测各组小鼠胸主动脉组织中核因
子κB(NF-κB)p65、小窝蛋白 1(Cav-1)、一氧化氮合酶(eNOS)蛋白的表达情况。结果:与空白组比较,模型组小鼠血清 TC、TG、
LDL-C、IL-6、VCAM-1水平均显著升高,HDL-C、NO水平均显著下降(P<0.01);胸主动脉斑块明显,校正斑块面积显著增大(P<
0.01),该组织中NF-κB p65、Cav-1蛋白的相对表达量均显著升高,eNOS蛋白的相对表达量显著下降(P<0.01)。与模型组比较,
各给药组小鼠血清TC、TG、LDL-C水平以及辛伐他汀组和调脾护心方高剂量组小鼠血清IL-6、VCAM-1水平均显著下降,各给药
组小鼠血清HDL-C、NO水平均显著升高(P<0.05或P<0.01);各给药组小鼠胸主动脉斑块减少,校正斑块面积均显著缩小(P<
0.05或P<0.01),该组织中NF-κB p65、Cav-1蛋白的相对表达量均显著下降,eNOS蛋白的相对表达量均显著升高(P<0.05或P<
0.01)。结论:调脾护心方可调节血脂水平、降低炎症因子水平、抑制AS斑块的形成,其机制可能与其抑制Cav-1/NF-κB通路有关。
关键词 调脾护心方;动脉粥样硬化;血脂水平;炎症因子;小窝蛋白1;核因子κB;小鼠
Investigation on Anti-atherosclerosis Mechanism of Tiaopi Huxin Prescription Based on Cav-1/NF-κB
Pathway
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LIN Tong ,SHI Chushuo ,SUN Zhizhong ,JI Shuliang ,WEN Junmao ,CHEN Qianying ,SUN Weipeng ,
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ZHANG Tian ,ZHOU Xiaoqi ,LI Junzhe (1. The First Clinical College,Guangzhou University of TCM,
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Guangzhou 510405,China;2. Second Dept. of Cardiovascular Disease,Inpatient Department of University
Town,Guangdong Provincial Hospital of TCM,Guangzhou 510006,China)
ABSTRACT OBJECTIVE:To study the effects of Tiaopi huxin prescription(TPHXP)on the atherosclerosis(AS)of ApoE-/-
mice,and to investigate its mechanism. METHODS:Forty male ApoE-/- mice were divided into blank group,model group,
simvastatin group(positive control,5 mg/kg)and TPHXP low-dose and high-dose groups(50,150 mg/kg),with 8 mice in each
group. Except that blank group was given common diet,other groups were given high-lipid diet to induce AS model. After
modeling,administration groups were given relevant medicine intragastrically,and blank group and model group were given
constant volume of normal saline intragastrically,once a day,for consecutive 12 weeks. After last medication,the serum levels of
TC,TG,LDL-C and HDL-C were determined by spectrophotometry. The serum level of NO was detected by nitrate reduction
method. The serum levels of IL-6 and VCAM-1 were determined by ELISA. After separating thoracic aorta,HE staining was used
to observe the formation of plaque in the thoracic aorta of mice in each group,and the corrected plaque area was calculated.
Western blotting was conducted to determine the expression of
Δ 基 金 项 目 :国 家 自 然 科 学 基 金 资 助 项 目(No.81403225、
NF-κB p65,Cav-1 and eNOS. RESULTS:Compared with
81673923);广东省中医药局科研项目(No.20181088);广州中医药大
blank group,the serum levels of TC,TG,LDL-C,IL-6 and
学本科生拔尖创新人才培养项目(No.BKBJCX2018003)
VCAM-1 were increased significantly in model group,while
*本科生。研究方向:中医基础与临床。E-mail:929023709@qq.
com the levels of HDL-C and NO were decreased significantly(P<
# 通信作者:主治医师,博士。研究方向:中西医治疗冠心病的基 0.01). The plaque of thoracic aorta was obvious and the
础与临床。电话:020-36588581。E-mail:2015404734@qq.com corrected plaque area were increased significantly (P<0.01).
中国药房 2019年第30卷第2期 China Pharmacy 2019 Vol. 30 No. 2 ·165 ·