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Nitric-Oxide-Mediated Signaling in Podocyte Pathophysiology
Marharyta Semenikhina1, Mariia Stefanenko1, Denisha R Spires2
1Division of Nephrology, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA.
Biomolecules
|June 24, 2022
Summary
Nitric oxide (NO) is crucial for kidney health, but its signaling in podocytes is understudied. Restoring NO levels may protect against kidney disease, but mechanisms require further investigation.
Area of Science:
- Nephrology
- Molecular Biology
- Physiology
Background:
- Nitric oxide (NO) is a key signaling molecule in kidney function, impacting glomerular filtration, vasodilation, and inflammation.
- Reduced NO bioavailability in conditions like hypertension and diabetes contributes to podocyte damage and chronic kidney disease (CKD).
- The precise signaling pathways and production mechanisms of NO within glomerular cells, especially podocytes, remain incompletely understood.
Purpose of the Study:
- To review current knowledge on nitric oxide signaling, synthesis, and pathophysiological roles in kidney podocytes.
- To highlight the understudied aspects of NO homeostasis and its interaction with other reactive species in glomerular cells.
- To emphasize the need for further research into NO-calcium crosstalk and its regulation of podocyte function.
Main Methods:
- Literature review of recent reports on NO signaling in glomerular cells.
- Analysis of studies investigating NO homeostasis in the context of renal pathology.
- Synthesis of information on nitric oxide synthase (NOS) activity and NADPH oxidases in kidney disease.
Main Results:
- Decreased NO bioavailability is observed in renal pathology, with potential benefits from NO level restoration.
- Compromised nitric oxide synthase (NOS) activity can lead to peroxynitrite formation and is linked to autoimmune diseases.
- Altered NO production and release mechanisms, including shifts in NOS subunits and NADPH oxidases, are implicated in kidney pathology.
Conclusions:
- Understanding NO signaling in podocytes is essential for developing strategies against glomerular and kidney damage.
- Further investigation into NO production, release, and its interaction with reactive oxygen species is critical.
- Elucidating NO-calcium crosstalk in podocytes may reveal novel therapeutic targets for kidney diseases.
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