Biomaterial Database

Establishment and characterization of a novel conditionally immortalized human parietal epithelial cell line. 2021

Laura Miesen, and Roy Wetzels, and Jennifer Eymael, and Fieke Mooren, and Valerie Villacorta Monge, and Bartholomeus T van den Berge, and Martijn van den Broek, and Thea J A M van der Velden, and Lambertus P W J van den Heuvel, and Jack F M Wetzels, and Michiel F Schreuder, and Johan van der Vlag, and Jitske Jansen, and Bart Smeets

Department of Pathology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen, the Netherlands. Electronic address: Laura.miesen@radboudumc.nl.

Parietal epithelial cells (PECs) are epithelial cells in the kidney, surrounding Bowman's space. When activated, PECs increase in cell volume, proliferate, migrate to the glomerular tuft and excrete extracellular matrix. Activated PECs are crucially involved in the formation of sclerotic lesions, seen in focal segmental glomerulosclerosis (FSGS). In FSGS, a number of glomeruli show segmental sclerotic lesions. Further disease progression will lead to increasing number of involved glomeruli and gradual destruction of the affected glomeruli. Although the involvement of PECs in FSGS has been acknowledged, little is known about the molecular processes driving PEC activation. To get more insights in this process, accurate in vivo and in vitro models are needed. Here, we describe the development and characterization of a novel conditionally immortalized human PEC (ciPEC) line. We demonstrated that ciPECs are differentiated when grown under growth-restrictive conditions and express important PEC-specific markers, while lacking podocyte and endothelial markers. In addition, ciPECs showed PEC-like morphology and responded to IL-1β treatment. We therefore conclude that we have successfully generated a novel PEC line, which can be used for future studies on the role of PECs in FSGS.

UI	MeSH Term	Description	Entries
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D007678	Kidney Glomerulus	A cluster of convoluted capillaries beginning at each nephric tubule in the kidney and held together by connective tissue.	Glomerulus, Kidney
D004847	Epithelial Cells	Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells.	Adenomatous Epithelial Cells,Columnar Glandular Epithelial Cells,Cuboidal Glandular Epithelial Cells,Glandular Epithelial Cells,Squamous Cells,Squamous Epithelial Cells,Transitional Epithelial Cells,Adenomatous Epithelial Cell,Cell, Adenomatous Epithelial,Cell, Epithelial,Cell, Glandular Epithelial,Cell, Squamous,Cell, Squamous Epithelial,Cell, Transitional Epithelial,Cells, Adenomatous Epithelial,Cells, Epithelial,Cells, Glandular Epithelial,Cells, Squamous,Cells, Squamous Epithelial,Cells, Transitional Epithelial,Epithelial Cell,Epithelial Cell, Adenomatous,Epithelial Cell, Glandular,Epithelial Cell, Squamous,Epithelial Cell, Transitional,Epithelial Cells, Adenomatous,Epithelial Cells, Glandular,Epithelial Cells, Squamous,Epithelial Cells, Transitional,Glandular Epithelial Cell,Squamous Cell,Squamous Epithelial Cell,Transitional Epithelial Cell
D005109	Extracellular Matrix	A meshwork-like substance found within the extracellular space and in association with the basement membrane of the cell surface. It promotes cellular proliferation and provides a supporting structure to which cells or cell lysates in culture dishes adhere.	Matrix, Extracellular,Extracellular Matrices,Matrices, Extracellular
D005923	Glomerulosclerosis, Focal Segmental	A clinicopathological syndrome or diagnostic term for a type of glomerular injury that has multiple causes, primary or secondary. Clinical features include PROTEINURIA, reduced GLOMERULAR FILTRATION RATE, and EDEMA. Kidney biopsy initially indicates focal segmental glomerular consolidation (hyalinosis) or scarring which can progress to globally sclerotic glomeruli leading to eventual KIDNEY FAILURE.	Glomerulonephritis, Focal Sclerosing,Hyalinosis, Segmental Glomerular,Focal Segmental Glomerulosclerosis,Glomerulosclerosis, Focal,Hyalinosis, Segmental,Segmental Glomerular Hyalinosis,Focal Glomerulosclerosis,Focal Sclerosing Glomerulonephritides,Focal Sclerosing Glomerulonephritis,Glomerular Hyalinosis, Segmental,Glomerulonephritides, Focal Sclerosing,Sclerosing Glomerulonephritides, Focal,Sclerosing Glomerulonephritis, Focal,Segmental Glomerulosclerosis, Focal,Segmental Hyalinosis
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D050199	Podocytes	Highly differentiated epithelial cells of the visceral layer of BOWMAN CAPSULE of the KIDNEY. They are composed of a cell body with major CELL SURFACE EXTENSIONS and secondary fingerlike extensions called pedicels. They enwrap the KIDNEY GLOMERULUS capillaries with their cell surface extensions forming a filtration structure. The pedicels of neighboring podocytes interdigitate with each other leaving between them filtration slits that are bridged by an extracellular structure impermeable to large macromolecules called the slit diaphragm, and provide the last barrier to protein loss in the KIDNEY.	Visceral Epithelial Cells, Glomerular,Epithelial Cells, Glomerular Visceral,Glomerular Visceral Epithelial Cells,Podocyte
D018960	Hyaluronan Receptors	Acidic sulfated integral membrane glycoproteins expressed in several alternatively spliced and variable glycosylated forms on a wide variety of cell types including mature T-cells, B-cells, medullary THYMOCYTES; GRANULOCYTES; MACROPHAGES; erythrocytes, and fibroblasts. Their interaction with HYALURONIC ACID mediates binding of lymphocytes to high endothelial VENULES.	Antigens, CD44,CD44 Antigens,Hyaluronan-Binding Protein,Receptors, Hyaluronan,CD44 Antigen,Chondroitin Sulfate Proteoglycan 8,Hyaluronan Receptor,Hyaluronic Acid Binding Protein,Antigen, CD44,Hyaluronan Binding Protein,Receptor, Hyaluronan