Aroune Djamila, Libdiri Farid, Leboucher Sophie, Maouche Boubekeur, Marco Sergio, El-Aoufi Salima
Laboratoire de Biologie et de Physiologie des Organismes/MMDED, Faculté des Sciences Biologiques, USTHB, El-Alia, Dar El Beida, Algeria.
Institut Curie, Centre de Recherche, Plateforme d'Histologie, Orsay F-91405, France.
Saudi J Biol Sci. 2017 May;24(4):843-850. doi: 10.1016/j.sjbs.2016.05.009. Epub 2016 May 18.
Diabetes mellitus is a major leading cause of end-stage renal failure, characterized by kidney inflammation and glomerular dysfunction, in worldwide. Kidney inflammation is associated to modifications in the expression levels of pro-inflammatory molecules, such as nuclear factor-κB (NFκB) and adhesion molecules, such as E-cadherin, leading to glomerular dysfunction. However, the relationships between these two processes in human diabetic nephropathy remain an open question. Since is an ideal animal model to study diabetes mellitus temporal evolution, we have used this model to study the correlation between kidney structural changes and modification on the expression levels of NFκB and E-cadherin over time. We have demonstrated that, after induction of diabetes metillus with a high energy diet (HED), develops the characteristic symptoms of human disease. In detail, at the third month nuclear factor NFκB is expressed in the kidney of diabetic and structural renal changes, such as mesangial expansion or interstitial fibrosis, are detectable; at 6 months, thickening of glomerular basement membrane, glomerular sclerosis, and tubular atrophy occurs; at 9 months, symptoms of the final stages of the disease, such as down expression of E-cadherin, happens. As a result of these observations we proposed that NFκB activation and E-cadherin down-expression are interlinked on diabetic kidney disease (DKD).
糖尿病是全球范围内终末期肾衰竭的主要病因,其特征为肾脏炎症和肾小球功能障碍。肾脏炎症与促炎分子(如核因子κB (NFκB))以及黏附分子(如E-钙黏蛋白)表达水平的改变有关,进而导致肾小球功能障碍。然而,在人类糖尿病肾病中,这两个过程之间的关系仍是一个悬而未决的问题。由于[具体动物名称未给出]是研究糖尿病时间演变的理想动物模型,我们利用该模型研究了肾脏结构变化与NFκB和E-钙黏蛋白表达水平随时间变化之间的相关性。我们已经证明,在用高能饮食(HED)诱导糖尿病[具体动物名称未给出]后,其出现了人类疾病的特征性症状。具体而言,在第三个月时,糖尿病[具体动物名称未给出]的肾脏中核因子NFκB表达,并且可检测到肾脏结构变化,如系膜扩张或间质纤维化;在6个月时,肾小球基底膜增厚、肾小球硬化和肾小管萎缩出现;在9个月时,出现疾病终末期症状,如E-钙黏蛋白表达下调。基于这些观察结果,我们提出NFκB激活和E-钙黏蛋白下调在糖尿病肾病(DKD)中相互关联。