重庆医学
重慶醫學
중경의학
CHONGQING MEDICAL JOURNAL
2014年
19期
2449-2451,2454
,共4页
病毒性心肌炎%黄芪甲甙%白细胞介素17%白细胞介素6%肿瘤坏死因子α
病毒性心肌炎%黃芪甲甙%白細胞介素17%白細胞介素6%腫瘤壞死因子α
병독성심기염%황기갑대%백세포개소17%백세포개소6%종류배사인자α
viral myocarditis%astragaloside%interleukin-17%interleukin-6%tumor necrosis factor-alpha
目的:探讨白细胞介素-17(IL-17)在病毒性心肌炎(VMC)小鼠心肌中的表达及黄芪甲甙干预对其表达的影响。方法60只雄性Balb/c小鼠随机分为对照组、模型组及低、高剂量干预组,每组15只,后3组小鼠经腹腔接种0.1mL柯萨奇病毒B3(CVB3),低、高剂量干预组接种后当天分别以0.01、0.09g/L黄芪甲甙0.1mL灌胃,第15天处死小鼠,计算各组小鼠死亡率及心脏质量/体质量(HW/BW),通过HE染色判断炎症细胞浸润与心肌坏死病理积分,荧光实时定量PCR、Westernblot检测IL-17mRNA、蛋白表达,ELISA测定心肌组织IL-6和肿瘤坏死因子-α(TNF-α)水平。结果高剂量干预组死亡率、炎症细胞浸润与心肌坏死病理积分明显低于模型组(P<0.05)。模型组HW/BW、心肌IL-17mRNA及蛋白表达水平、心肌IL-6、TNF水平均明显高于对照组(P<0.01)。与模型组比较,高剂量干预组HW/BW、心肌IL-17mRNA及蛋白表达水平、心肌IL-6、TNF水平明显降低(P<0.05)。结论IL-17可能参与VMC发病过程,黄芪甲甙对VMC的治疗作用可能与其抑制IL-17介导的炎症反应有关。
目的:探討白細胞介素-17(IL-17)在病毒性心肌炎(VMC)小鼠心肌中的錶達及黃芪甲甙榦預對其錶達的影響。方法60隻雄性Balb/c小鼠隨機分為對照組、模型組及低、高劑量榦預組,每組15隻,後3組小鼠經腹腔接種0.1mL柯薩奇病毒B3(CVB3),低、高劑量榦預組接種後噹天分彆以0.01、0.09g/L黃芪甲甙0.1mL灌胃,第15天處死小鼠,計算各組小鼠死亡率及心髒質量/體質量(HW/BW),通過HE染色判斷炎癥細胞浸潤與心肌壞死病理積分,熒光實時定量PCR、Westernblot檢測IL-17mRNA、蛋白錶達,ELISA測定心肌組織IL-6和腫瘤壞死因子-α(TNF-α)水平。結果高劑量榦預組死亡率、炎癥細胞浸潤與心肌壞死病理積分明顯低于模型組(P<0.05)。模型組HW/BW、心肌IL-17mRNA及蛋白錶達水平、心肌IL-6、TNF水平均明顯高于對照組(P<0.01)。與模型組比較,高劑量榦預組HW/BW、心肌IL-17mRNA及蛋白錶達水平、心肌IL-6、TNF水平明顯降低(P<0.05)。結論IL-17可能參與VMC髮病過程,黃芪甲甙對VMC的治療作用可能與其抑製IL-17介導的炎癥反應有關。
목적:탐토백세포개소-17(IL-17)재병독성심기염(VMC)소서심기중적표체급황기갑대간예대기표체적영향。방법60지웅성Balb/c소서수궤분위대조조、모형조급저、고제량간예조,매조15지,후3조소서경복강접충0.1mL가살기병독B3(CVB3),저、고제량간예조접충후당천분별이0.01、0.09g/L황기갑대0.1mL관위,제15천처사소서,계산각조소서사망솔급심장질량/체질량(HW/BW),통과HE염색판단염증세포침윤여심기배사병리적분,형광실시정량PCR、Westernblot검측IL-17mRNA、단백표체,ELISA측정심기조직IL-6화종류배사인자-α(TNF-α)수평。결과고제량간예조사망솔、염증세포침윤여심기배사병리적분명현저우모형조(P<0.05)。모형조HW/BW、심기IL-17mRNA급단백표체수평、심기IL-6、TNF수평균명현고우대조조(P<0.01)。여모형조비교,고제량간예조HW/BW、심기IL-17mRNA급단백표체수평、심기IL-6、TNF수평명현강저(P<0.05)。결론IL-17가능삼여VMC발병과정,황기갑대대VMC적치료작용가능여기억제IL-17개도적염증반응유관。
Objective To explore the expression of interleukin-17 (IL-17) in the murine myocardium with viral myocarditis (VMC) ,and the influence of astragaloside intervention on its expression .Methods 60 male 4-week-old Balb/c mice were randomly divided into four groups ,namely normal control group ,model control group ,low-dose and high-dose intervention groups ,15 mice in each group .Mice in the latter three groups were inoculated with 0 .1 mL coxsackie B3 virus intraperitoneally .Then ,mice in low-dose and high-dose intervention groups were treated with 0 .01 g/L and 0 .09 g/L astragaloside solution ,respectively .All mice were killed on 15 days .The mortality and heart weight/body weighty (HW/BW ) were calculated .Histological cross sections of heart were stained with hematoxylin-eosin and histopathologic scores of inflammatory cells infiltration and myocardial necrosis were eval-uated under optical microscope .The expression levels of myocardial IL-17 mRNA and protein were detected through real-time quan-titative PCR and Western blot .The contents of IL-6 and tumor necrosis factor-α(TNF-α) in the myocardium were examined by ELISA .Results The mortality and histopathologic scores of inflammatory cells infiltration and myocardial necrosis in high-dose in-tervention group were significantly lower than those in model controlgroup (P<0 .05) .Compared with normal control group ,the HW/BW ,the expression levels of myocardial IL-17 mRNA and protein as well as the contents of IL-6 and TNF-αin the myocardi-um were markedly increased in model control group(P<0 .01) ,whereas these parameters were significantly decreased in high-dose intervention group as compared to model group (P<0 .05) .Conclusion IL-17 may be involved in the pathogenesis of VMC .The therapeutic effect of astragaloside on VMC may be associated with inhibiting IL-17-mediated inflammatory response .