姜黄素对PDGF诱导活化的肝星状细胞表达细胞外基质的影响

来源 :江苏省药理学会第六届学术研讨会 | 被引量 : 0次 | 上传用户:jql002
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
目的:研究姜黄素对血小板衍生生长因子(PDGF)诱导活化的肝星状细胞(HSCs)细胞外基质(ECM)沉积的干预机制.方法:分离、纯化大鼠原代HSCs并体外培养,以Western blot和Real-time PCR方法分别检测姜黄素对PDGF诱导活化的HSCs中α-平滑肌肌动蛋白(α-SMA)、ECM主要成分成分Ⅰ型前胶原(α1(Ⅰ)collagen)和纤粘蛋白(fibronectin)表达的影响,以及对调控ECM降解平衡的基质金属蛋白酶(MMP-2,MMP-9)与其组织抑制剂(TIMP-1)蛋白与mRNA表达的影响.结果:姜黄素可显著下调α-SMA,α1(Ⅰ)collagen和fibronectin的蛋白与mRNA表达,减少ECM的沉积。此外,姜黄素尚可调节ECM的降解平衡,表现为TIMP-1的表达下调,而MMP-2的表达上调。结论:姜黄素能够抑制PDGF促进HSCs合成与分泌ECM的作用,还可促进ECM的降解,减少ECM在肝脏中的沉积,进而发挥治疗肝纤维化的作用。
其他文献
目的:通过观察仁术健胃颗粒对慢性萎缩性胃炎(CAG)脾气虚证大鼠COX-2表达的影响,探讨仁术健胃颗粒预防和治疗慢性萎缩性胃炎的机制.方法:大鼠(除正常组)采用自由饮用MNNG溶液,灌胃40%的酒精,破气苦降,饥饱失常,疲劳运动相结合的方法复制CAG脾气虚证模型.然后将CAG脾气虚证模型大鼠随机分为相应各组.实验末检测各组大鼠的COX-2的表达.结果:CAG脾气虚模型组的COX-2在腺体细胞胞浆中
Aim:This study consisted of 2 phases:development of a liquid chromatography-tandem mass/mass spectrometry (LC-MS/MS) method for the determination of Ipriflavone in human plasma and the effect of food
Doxorubicin (Dox) is an anthracycline used to effectively treat several forms of cancer.Unfortunately,the use of Dox is limited due to its association with cardiovascular complications which are manif
会议
会议
会议
The dynamic crosstalk between cancer and platelet is increasingly recognized as a key regulator of malignant progression.Tumor cells are known to secrete several cytokines,which activate platelet and
Since chemoresistance is a complicated and multifactorial factor in breast cancer,systematically characterize metabolic perturbation of endogenous compounds associated with drug resistance may provide
Purpose:In this study,we examined inhibiting angiogenic effects of Albiziajulibrissin bark extract (AJBE) in vitro and in vivo.Methods:In the presence of AJBE,the growth of human microvascular endothe
Objective:Accumulating experimental and clinical studies provide clear evidence for reversibility of hepatic fibrosis (HF).Apoptosis of activated hepatic stellate cells (HSCs) has proven critical to f
Modulation of P-gp transport may lead to increased drug accumulation in normal tissues including heart with resulting increases in toxicity.We aimed to investigate the influence of verapamil (a P-gp i