基金supported by grants from National College Students’Innovation Entrepreneurship Training Plan Program of China(No.201410570003)College Students’Science and Technology Innovation Cultivation Special Funds Program of Guangdong Province,the Guangzhou Medical University College Students Science Technology Innovation Project(No.2013A0014)+4 种基金the National Natural Science Foundation of China(No.81302771)the Fundamental Research Funds for the Central University in China(No.12ykpy02)the Medical Scientific Research Foundation of Guangdong Province,China(No.A2013207,A2014278,B2013101)Scientific Research Foundation of Guangzhou Medical Universitythe Foundation for Excellent Teachers by Guangzhou Medical University,China
文摘亲环素A(cyclophilin A,Cy PA),其受体CD147及其下游信号通路在心肌肥厚过程中变化情况不清楚。本实验目的是研究血清Cy PA、心肌中Cy PA、CD147及其信号通路与心肌肥厚的关系。大鼠左心室肥厚模型用2肾2夹(2-kidney,2-clip,2K2C)方法制备,并观察1周,4周和8周。用左心质量和体重比值(ratio of left ventricular heart weight to body weight,LVW/BW)及心肌横切面面积(cross sectional area,CSA)评价左心室肥厚。用ELISA检测血清中Cy PA水平。用蛋白免疫印迹和免疫组化观察Cy PA、CD147、磷酸化ERK1/2和cyclin D2在心肌组织中表达水平。在第4周和8周,与对照组比较,2K2C组大鼠血压明显增高,LVW/BW和CSA显著增加。ELISA结果显示2K2C组大鼠血清中Cy PA水平随着左心室肥厚程度加剧而明显增加。蛋白免疫印迹和免疫组化结果表明,Cy PA、CD147、磷酸化ERK1/2和cyclin D2在2K2C组大鼠心肌组织中表达水平也随左心室肥厚发展而增加。本研究表明血清中Cy PA水平以及心肌组织中Cy PA-CD147-ERK1/2-cyclin D2信号通路在心肌肥厚发展过程中被激活并表达上调,提示该信号通路在左心室肥厚发病机制中可能发挥了作用。
基金supported by the National Natural Science Foundation of China(No.81470205)National College Students’Innovation Entrepreneurship Training Plan Program of China(No.2015105700010)+3 种基金the Guangzhou Medical University College Students Science and Technology Innovation Project,China(No.2014A015)the Medical Scientific Research Foundation of Guangdong Province,China(No.A2016382)Guangzhou City-belonged Universities Scientific Research Program,China(No.2012C130)the Foundation for Excellent Teachers by Guangzhou Medical University,China