维生素D与水通道蛋白的研究进展

维生素D是一种脂溶性类固醇激素,通过与维生素D受体(vitamin D receptor,VDR)结合构成1,25 (OH)2D3/VDR信号通路参与调节机体钙磷代谢、糖代谢、脂代谢、水代谢等多种生物功能的调节.水通道蛋白是一类相对分子质量较小的疏水跨膜蛋白,在特殊的组织或细胞中如肾小管、内分泌腺、红细胞等细胞膜上特异表达,参与体内水平衡及代谢的调节.维生素D可以通过抑制肾素-血管紧张素系统在糖尿病肾病等疾病中起积极的作用,而水通道蛋白作为评价肾脏疾病进展及肾脏功能的新指标逐渐走进人们的视线,有研究证实维生素D在参与调节水通道蛋白的表达,维生素D和水通道在肾脏损伤及慢性肾脏疾病发挥着重要作用.

Research progresses of vitamin D and aquaporins

Vitamin D is a fat-soluble steroid hormone.Vitamin D receptor(VDR),a type of nuclear receptor,recognized by Vitamin D has many biological functions and the pathway of 1,25 (OH)2D3/VDR plays an important role in human such as regulating calcium phosphate metabolism,glucose metabolism,lipid metabolism and water metabolism.Water channel protein aquaporin(AQP) is a kind of smaller hydrophobic trans-membrahe proteins,expressed in cell membrane of renal tubules,endocrine glands and red blood cells.Aquaporin plays a key role in the regulation of water balance and metabolism.Vitamin D has a positive effect in diabetic nephropathy via inhibiting renin-angiotensin system,while aquaporin is a new biological marker of chronic kidney disease and kidney injury.Latest studies have showed that the expression of aquaporin can be regulated by vitamin D.Therefore,Vitamin D and aquaoprin play an important role in chronic kidney disease and kidney injury.