Are the Renal Epithelial Cells isolated from proximal or distal tubuli?

PromoCell provides two types of Renal Epithelial Cells: Human Renal Epithelial Cells (HREpC) and Human Renal Cortical Epithelial Cells (HRCEpC). HREpC are isolated from the adult kidney and stain positive for cytokeratin. They comprise a heterogeneous population of renal epithelial cells. HRCEpC are isolated from the cortex of the kidney and comprise cells from proximal and distal tubuli. They also stain positive for cytokeratin.