目的:研究丁酸钠、曲古抑菌素A(trichostatin A,TSA)及腺病毒E1A相关的300 kD蛋白(adenoviral E1A binding protein of 300 kD,P300)介导的组蛋白乙酰化在人非小细胞肺癌A549细胞及人支气管上皮BEAS-2B细胞中对哮喘易感的解整合素金属...目的:研究丁酸钠、曲古抑菌素A(trichostatin A,TSA)及腺病毒E1A相关的300 kD蛋白(adenoviral E1A binding protein of 300 kD,P300)介导的组蛋白乙酰化在人非小细胞肺癌A549细胞及人支气管上皮BEAS-2B细胞中对哮喘易感的解整合素金属蛋白酶33(a disintegrin and metalloproteinase 33,ADAM33)基因表达的影响。方法:将A549细胞及BEAS-2B细胞分别分为丁酸钠对照组(双蒸水处理)和1、2.5、5 mmol/L丁酸钠组,TSA对照组(0.1%二甲基亚砜处理)和0.2、0.4、0.8μmol/L TSA组,按照组别分别予以相应处理;另将BEAS-2B细胞分为对照组(转染P300突变质粒)和P300组(转染P300表达质粒);采用双荧光素酶报告基因法分析ADAM33启动子活性的变化,实时荧光定量PCR(quantitative real time-PCR,qRT-PCR)检测ADAM33 mRNA表达,蛋白质印迹法检测ADAM33蛋白表达。结果:在人非小细胞肺癌A549细胞中,与对照组相比,1 mmol/L丁酸钠组及0.2μmol/L TSA组ADAM33基因启动子活性明显降低(P<0.01);在BEAS-2B细胞中,与对照组相比,1 mmol/L丁酸钠组及0.2μmol/L TSA组ADAM33基因启动子活性、mRNA及蛋白相对表达水平明显降低(P<0.05或P<0.01)。加大丁酸钠、TSA药物浓度,ADAM33表达无显著差异。在人支气管上皮BEAS-2B细胞中,与对照组相比,P300组ADAM33启动子活性、mRNA和蛋白相对表达水平明显降低(P<0.05)。结论:丁酸钠、TSA通过组蛋白乙酰化降低人非小细胞肺癌A549细胞和人支气管上皮BEAS-2B细胞中ADAM33表达,P300通过组蛋白乙酰化降低人支气管上皮BEAS-2B细胞中ADAM33表达。展开更多
糖尿病的发生率逐渐升高,尤其是2型糖尿病。随着糖尿病病程的增加,各项并发症的发病率也随之升高。尤其是2型糖尿病导致的慢性并发症,对人们的健康、心理及经济等各个方面均有一定的影响。近几年的研究均表明了脂质代谢对糖尿病的发病...糖尿病的发生率逐渐升高,尤其是2型糖尿病。随着糖尿病病程的增加,各项并发症的发病率也随之升高。尤其是2型糖尿病导致的慢性并发症,对人们的健康、心理及经济等各个方面均有一定的影响。近几年的研究均表明了脂质代谢对糖尿病的发病机制及其并发症的发生及进展有一定的影响。载脂蛋白B/A-1比值作为新的代谢紊乱标志物的指标之一,可评价糖尿病患者血管相关并发症。本文就载脂蛋白B/A-1比值在2型糖尿病血管并发症中的作用的相关研究进行综述。The prevalence of type 2 diabetes is on the rise, leading to an increase in associated complications over time. In particular, the chronic complications caused by type 2 diabetes have a certain impact on people’s health, psychology and economy. Recent studies have highlighted the impact of lipid metabolism on the development and progression of diabetes-related complications. Given that the ApoB/A-1 ratio can serve as a valuable indicator for assessing metabolic disorders and evaluating chronic complications in patients with diabetes. This review provides an overview of relevant research concerning the role of ApoB/A-1 ratio in vascular complications of type 2 diabetes.展开更多
文摘糖尿病的发生率逐渐升高,尤其是2型糖尿病。随着糖尿病病程的增加,各项并发症的发病率也随之升高。尤其是2型糖尿病导致的慢性并发症,对人们的健康、心理及经济等各个方面均有一定的影响。近几年的研究均表明了脂质代谢对糖尿病的发病机制及其并发症的发生及进展有一定的影响。载脂蛋白B/A-1比值作为新的代谢紊乱标志物的指标之一,可评价糖尿病患者血管相关并发症。本文就载脂蛋白B/A-1比值在2型糖尿病血管并发症中的作用的相关研究进行综述。The prevalence of type 2 diabetes is on the rise, leading to an increase in associated complications over time. In particular, the chronic complications caused by type 2 diabetes have a certain impact on people’s health, psychology and economy. Recent studies have highlighted the impact of lipid metabolism on the development and progression of diabetes-related complications. Given that the ApoB/A-1 ratio can serve as a valuable indicator for assessing metabolic disorders and evaluating chronic complications in patients with diabetes. This review provides an overview of relevant research concerning the role of ApoB/A-1 ratio in vascular complications of type 2 diabetes.