title: The functions of TRPP2 in the vascular system.
abstract: TRPP2 (polycystin-2, PC2 or PKD2), encoded by the PKD2 gene, is a non-selective cation channel with a large single channel conductance and high Ca(2+) permeability. In cell membrane, TRPP2, along with polycystin-1, TRPV4 and TRPC1, functions as a mechanotransduction channel. In the endoplasmic reticulum, TRPP2 modulates intracellular Ca(2+) release associated with IP3 receptors and the ryanodine receptors. Noteworthily, TRPP2 is widely expressed in vascular endothelial and smooth muscle cells of all major vascular beds, and contributes to the regulation of vessel function. The mutation of the PKD2 gene is a major cause of autosomal dominant polycystic kidney disease (ADPKD), which is not only a common genetic disease of the kidney but also a systemic disorder associated with abnormalities in the vasculature; cardiovascular complications are the leading cause of mortality and morbidity in ADPKD patients. This review provides an overview of the current knowledge regarding the TRPP2 protein and its possible role in cardiovascular function and related diseases.
authors.affiliation: Department of Physiology, School of Basic Medicine, Anhui Medical University, Hefei 230032, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Du
authors.affiliation: Department of Physiology, School of Basic Medicine, Anhui Medical University, Hefei 230032, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Fu
authors.affiliation: Department of Gastroenterology and Hepatology, The Fourth Affiliated Hospital of Anhui Medical University, Hefei 230032, China.
authors.forename: Xian-ming
authors.initials: XM
authors.lastname: Xia
authors.affiliation: Department of Physiology, School of Basic Medicine, Anhui Medical University, Hefei 230032, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Shen
mesh_terms: D000818:Animals; D001794:Blood Pressure / Q000502:physiology; D001808:Blood Vessels / Q000502:physiology*; D002118:Calcium / Q000378:metabolism; D004730:Endothelium, Vascular / Q000502:physiology; D006706:Homeostasis; D006801:Humans; D042541:Intracellular Space / Q000378:metabolism; D009131:Muscle, Smooth, Vascular / Q000502:physiology; D009154:Mutation; D050396:TRPP Cation Channels / Q000819:agonists / Q000037:antagonists & inhibitors / Q000235:genetics / Q000502:physiology*
chemical_list: D050396:TRPP Cation Channels; D002118:Calcium