Under the guidance of the“Collaterals Disease” theory, QiJiShenKang, a patent prescription drug, has been used clinically more than 20 years in our university- affiliated hospital. But until now, the mechanism of its function is still unclear. Based on the preliminary study in vitro, we hypothesized that IgA nephropathy pathogenesis may be a closely related with TGF-β1/Smads and the ERK signal transduction pathway. The traditional Chinese medicine(TCM) compounds prescription, could be nourish kidney collaterals, clear kidney collaterals and dispell kidney collaterals, play a therapeutic role by regulating TGF -β1/Smads and the ERK signal transduction pathway. Aim of this study is to identify the pathogenesis of IgA nephropathy and the therapeutic role of QiJiShenKang. Using CS57BL/6J genetically modified mice, were treated with QiJiShenKang prescription, to study the change of the targets FN, Col - IV of IgA nephropathy. And at the same time, to study the mRNA and protein expression levels of NF-κB, ERK, Smads , IL-6, MCP- 1, TNF-α, TGF-β1.This research will reveal the scientific significance of kidney collaterals disease, and develop new TCM therapy pathways.
在中医学“络病”理论指导下的专利处方芪蓟肾康汤是临床应用20余年的院内制剂——消斑愈肾颗粒优化后处方,其作用机制尚不清楚。在前期体外研究基础上,提出科学假说: IgA肾病发病机制可能与 TGF-β1/Smads和ERK信号转导密切相关;运用“补肾络、清肾络、消肾络”中药复方可能通过调控以上两条通路,而发挥治疗作用。研究以CS57BL/6J转基因小鼠为研究对象,以芪蓟肾康汤为研究因素,通过体内实验干预NF-kB、ERK、Smads和效应因子IL-6、MCP-1、TNF-α、TGF-β1蛋白、基因水平的表达,观察IgA肾病的作用靶点FN、Col-IV,阐明IgA肾病的发病机制及芪蓟肾康汤的疗效作用。研究将揭示“肾络病“理论的科学内涵,为中医药学拓展新的治疗途径。
基于中医学“肾络病”理论指导下的专利处方芪蓟肾康汤,临床应用20余年,其作用机制尚不清楚。在前期体外研究基础上,提出科学假说:IgA 肾病发病机制可能与TGF-β1/Smads和ERK信号转导密切相关;运用“补肾络、清肾络、消肾络”中药复方可能通过调控以上两条通路,而发挥治疗作用。体内实验部分,通过IgAN的发病机制主要是血清中IgA1铰链区糖基化的异常情况,利用转基因方法将人IgA1铰链区上的O-糖基化位点进行特异性的突变,将该突变后的IgA1分子序列转入小鼠体内,置换小鼠原有的铰链区序列,构建并评价含有人IgAN转基因新型小鼠模型,建立一种更加稳定的动物模型进行体内实验,以芪蓟肾康汤为硏究因素,通过体内实验干预NF-kB、ERK、 Smads和效应因子IL-6 、MCP-1、TNF-a、TGF-β1蛋白、基因水平的表达,观察IgA肾病的作用靶点及芪蓟肾康汤的实验疗效;体外实验部分,创新性针对IgAN发病靶器官——人肾小球系膜细胞进行体外实验培养,以芪蓟肾康汤为硏究因素,从细胞水平观察ERK信号通路及相关细胞因子MCP-1、NF-kB 、IL-6、 TNF-a、TGF-β1 、 Smads表达变化情况,最终结果阐明了IgA肾病的发病机制与TGF-1/Smads和ERK信号转导密切相关,证明了“补、清、消肾络”指导理论芪蓟肾康汤可能通过多靶点调节TGF-β1/Smads 和ERK信号转导通路,实验疗效确切。揭示了“肾络病“理论的科学内涵,为中医药学拓展新的治疗途径。
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数据更新时间:2023-05-31
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