part of part of endothelial cell endothelial cell of arteriole kidney afferent arteriole cell kidney afferent arteriole endothelial cell Kidney afferent arteriole endothelial cells are a specialized type of cell located within the kidneys, forming the inner lining of the afferent arterioles, which are responsible for delivering blood to the glomeruli - capillary networks responsible for filtration - from where the process of urine formation begins in the nephrons. The endothelial cells in the kidney afferent arterioles have a key function in regulating the blood flow and filtration. They have autocrine and paracrine signaling capabilities, meaning they can signal to themselves and other nearby cells. They produce nitric oxide, prostacyclin, and endothelin, which are powerful vasodilators and vasoconstrictors that regulate renal blood flow. These cells also engage in the mitigation of kidney injury and inflammation by promoting repair and regeneration, demonstrating the multifaceted roles these cells play in maintaining renal health. (This extended description was generated by ChatGPT and reviewed by the CellGuide team, who added references, and by the CL editors, who approved it for inclusion in CL. It may contain information that applies only to some subtypes and species, and so should not be considered definitional.) https://cellxgene.cziscience.com/cellguide/CL_1001096 https://cdn.humanatlas.io/digital-objects/2d-ftu/kidney-renal-corpuscle/v1.2/assets/2d-ftu-kidney-renal-corpuscle.png KUPO:0001039 An endothelial cell that lines the interior surface of the afferent arteriole and maintains vascular tone. This cell responds to changing ion concentrations and blood pressure by releasing vasoactive substances, in order to regulate blood flow into the glomeruli, which is essential for glomerular filtration. Homo sapiens renal afferent arteriole