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Updated: Aug 10, 2026
An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney
Published on: November 1, 2018
[Isolation, identification and in vitro culture of human glomerular mesangial cells]
1Department of Embryology and Histology, First Military Medical University, Guangzhou 510515, China. yanzisun1979@sina.com
Insights
Optimal culture conditions for human glomerular mesangial cells (HGMCS) were defined. Immunohistochemistry confirmed HGMCS identification by specific marker expression, crucial for kidney research.
Area of Science:
- Nephrology
- Cell Biology
- Immunohistochemistry
Context:
- Human glomerular mesangial cells (HGMCS) are vital for kidney function and disease research.
- Establishing optimal in vitro culture conditions is essential for reliable experimental outcomes.
Purpose:
- To determine the ideal conditions for culturing human glomerular mesangial cells in vitro.
- To validate the identity of cultured HGMCS using specific cellular markers.
Summary:
- A three-layer micropore filter device was used to isolate HGMCS from human kidney tissue.
- Immunohistochemical staining with fluorescein isothiocyanate (FITC)-labeled antibodies identified cell surface markers.
- Negative staining for Factor VIII, keratin, and cytokeratin, alongside positive staining for desmin, collagen IV, fibronectin, and laminin, confirmed HGMCS identity.
Impact:
- Provides a reliable method for culturing and identifying HGMCS.
- Facilitates further research into glomerular diseases and kidney physiology.
- Ensures the use of accurately identified cells in experimental studies.
Objective:
To define the optimal condition to culture human glomerular mesangial cells in vitro.
Methods:
With a three-layer micropore filter device, we separated the glomerular mesangial cells from normal human, with were subjected to identification with immunohistochemical method. Fluorescein isothiocyanate (FITC) staining was performed for labeling of the monoclonal antibodies so as to identify the cells' superficial markers including factor VIII, keratin, cytokeratin, desmine, et al. Glomerular endothelial cells isolated from the same human tissues were also cultured in vitro under the same condition, serving as negative control.
Results And Conclusion:
The antibodies related to anti-factor VIII, and those of antikeratin and anticytokeratin were negative in the isolated glomerular mesangial cells, while the antibodies for desmine, anti-collagen IV, anti-fibronectin, and anti-laminin were positive, offering evidence for confirming the identification of the isolated and cultured mesangial cells.
