Podocyte Regeneration in Glomerular Disorders
Summary
Podocytes are highly specialised epithelial cells lining the outer aspect of the glomerular capillary tuft, forming a crucial component of the kidney’s filtration barrier. Loss or dysfunction of podocytes contributes directly to proteinuria and the progression of glomerulosclerosis, a common pathway in chronic kidney disease. Historically regarded as terminally differentiated and non-replicative, podocytes are now known to be replenished under certain circumstances by neighbouring renal progenitors, notably parietal epithelial cells (PECs) and tissue-resident stem cells. The regenerative response is governed by complex signalling networks involving microRNAs, growth factors, adhesion receptors and extracellular matrix components. Modulation of these pathways offers the potential to restore podocyte density and preserve glomerular architecture. Advances in transcriptomic mapping, lineage tracing and pharmacological intervention have begun to unravel the cellular hierarchies and molecular switches that determine whether injury triggers maladaptive sclerosis or tissue repair. Elucidation of these mechanisms holds promise for novel therapies aimed at enhancing podocyte renewal, reducing proteinuria and preventing the inexorable decline in renal function observed in many glomerular disorders.
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Podocyte Regeneration in Glomerular Disorders publication trend
The graph below shows the total number of articles in podocyte regeneration in glomerular disorders across all publications each year (not limited to Nature Index journals).
Technical terms
Podocyte: Highly differentiated epithelial cell that wraps around glomerular capillaries and maintains the filtration barrier.
Parietal epithelial cell (PEC): Epithelial cell lining Bowman’s capsule with progenitor potential for podocyte regeneration.
Single-cell RNA sequencing (scRNA-seq): High-resolution method to profile transcriptomes of individual cells, revealing cellular heterogeneity.
Endotrophin: Matricellular protein fragment involved in fibrosis and inflammation, targetable to enhance tissue repair.
Glomerulosclerosis: Scarring and loss of functional nephrons due to podocyte depletion and extracellular matrix deposition.
References
- Podocyte Regeneration Driven by Renal Progenitors Determines Glomerular Disease Remission and Can Be Pharmacologically Enhanced. Stem Cell Reports (2015).
- Single cell landscape of parietal epithelial cells in healthy and diseased states. Kidney International (2023).
- Endotrophin neutralization through targeted antibody treatment protects from renal fibrosis in a podocyte ablation model. Molecular Metabolism (2023).
- Adhesion G Protein-Coupled Receptor Gpr126 (Adgrg6) Expression Profiling in Diseased Mouse, Rat, and Human Kidneys. Cells (2024).
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