Cyclosporine-Induced Nephrotoxicity Mechanisms and Interventions

Cyclosporine A is a cornerstone immunosuppressant in transplantation and autoimmune disease management but carries a significant risk of nephrotoxicity. Injury arises from haemodynamic alterations such as afferent arteriolar vasoconstriction, inflammatory signalling, oxidative stress and dysregulation of cellular homeostasis. Excessive reactive oxygen species provoke lipid peroxidation and mitochondrial dysfunction, while activation of profibrotic pathways, including TGF-β signalling and epithelial–mesenchymal transition, drives tubulointerstitial fibrosis. At the cellular level, imbalances between autophagy and apoptosis exacerbate tubular epithelial cell loss. Recent strategies to mitigate injury focus on antioxidant and anti-inflammatory agents, modulation of autophagic flux, inhibition of extracellular matrix crosslinking enzymes and blockade of pathogenic receptor pathways. Preclinical models have demonstrated that small-molecule inhibitors, natural flavonoids and receptor antagonists can preserve renal architecture, restore filtration function and attenuate fibrosis, offering promise for translational applications in diverse patient populations.

Research from Nature Portfolio

Recent experimental work has shown that combined administration of hesperidin or sitagliptin markedly reduces cyclosporine-induced elevations in serum creatinine and urea, preserves antioxidant enzyme levels and upregulates Nrf2 expression in renal tissue. Both compounds alleviate inflammation by suppressing TNF-α and NF-κB activation and reduce apoptosis through downregulation of Bax. In a complementary study, inhibitors of lysyl oxidase family enzymes attenuated chronic cyclosporine nephropathy in mice by limiting collagen crosslinking, dampening TGF-β1–Smad3 signalling and reducing macrophage recruitment. These regimens also lowered blood urea nitrogen and improved histological measures of interstitial fibrosis. Foundational investigations have further identified Toll-like receptor 4 as a mediator of calcineurin inhibitor-induced vascular inflammation, revealing that blockade of this receptor prevents endothelial activation and oxidative stress, thereby uncovering an innate immunity axis in nephrotoxicity.

Cyclosporine-Induced Nephrotoxicity Mechanisms and Interventions publication trend

The graph below shows the total number of articles in cyclosporine-induced nephrotoxicity mechanisms and interventions across all publications each year (not limited to Nature Index journals).

Technical terms

Nephrotoxicity: Kidney injury or impaired renal function resulting from exposure to toxic substances.

Oxidative stress: Imbalance between reactive oxygen species production and antioxidant defences.

Apoptosis: Programmed cell death characterised by cellular shrinkage and DNA fragmentation.

Autophagy: Intracellular degradation pathway that recycles cytoplasmic components through lysosomal digestion.

Epithelial–mesenchymal transition: Process by which epithelial cells acquire mesenchymal characteristics, contributing to fibrosis.

Tubulointerstitial fibrosis: Accumulation of extracellular matrix in the renal interstitium leading to scarring and loss of function.

References

1. Immunosuppression with cyclosporine versus tacrolimus shows distinctive nephrotoxicity profiles within renal compartments. Acta Physiologica (2024).
2. Palliative Role of Zamzam Water against Cyclosporine-Induced Nephrotoxicity through Modulating Autophagy and Apoptosis Crosstalk. Toxics (2023).
3. Cyclosporine-induced kidney damage was halted by sitagliptin and hesperidin via increasing Nrf2 and suppressing TNF-α, NF-κB, and Bax. Scientific Reports (2024).
4. Calcineurin inhibitors cyclosporine A and tacrolimus induce vascular inflammation and endothelial activation through TLR4 signaling. Scientific Reports (2016).
5. Lysyl oxidase inhibitors attenuate cyclosporin A-induced nephropathy in mouse. Scientific Reports (2021).