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Isolation and characterization of conditionally immortalized mouse glomerular endothelial cell lines
Angelique L Rops1, Johan van der Vlag, Cor W Jacobs
1Division of Nephrology, Department of Pathology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
Kidney International
|December 1, 2004
Summary
Researchers developed a new mouse glomerular endothelial cell line (mGEnC-1) that mimics key features of kidney endothelial cells. This conditionally immortalized cell line aids in studying glomerular physiology and pathology, especially its unique fenestrae.
Area of Science:
- Nephrology
- Cell Biology
- Renal Physiology
Background:
- Glomerular cell lines are crucial for understanding kidney physiology and pathology.
- Conditionally immortalized cell lines significantly advance podocyte research.
Purpose of the Study:
- To establish and characterize a conditionally immortalized mouse glomerular endothelial cell line.
- To analyze the functional and structural properties of the new cell line.
Main Methods:
- Isolated glomeruli from transgenic mice expressing a temperature-sensitive SV40 large tumor antigen.
- Established and characterized clonal cell lines using immunofluorescence and functional assays.
- Analyzed endothelial cell markers, cytokine-induced adhesion molecule expression, tube formation, and fenestrae presence.
Main Results:
- Obtained putative endothelial, podocyte, and mesangial cell lines via immunostaining.
- Characterized mouse glomerular endothelial cell clone #1 (mGEnC-1) for endothelial markers, LDL uptake, and cytokine response.
- Confirmed mGEnC-1 forms tubes and possesses nondiaphragmed fenestrae.
Conclusions:
- mGEnC-1 is a conditionally immortalized cell line exhibiting characteristics of differentiated glomerular endothelial cells at 37°C.
- The presence of nondiaphragmed fenestrae in mGEnC-1 is a significant feature of glomerular endothelial cells.