Related Experiment Video
Updated: Aug 30, 2026

Modeling Hypoxia/Reoxygenation Injury in Proximal Tubular Epithelial Cells
Published on: November 21, 2025
Targeting apoptosis in acute tubular injury
Alberto Ortiz1, Pilar Justo, Ana Sanz
1Nefrología, Fundación Jiménez Díaz, IRSIN y Universidad Autónoma de Madrid, Av Reyes Católicos 2, Madrid 28040, Spain. aortiz@fjd.es
Abstract:
Recent research has shown that apoptosis and its regulatory mechanisms contribute to cell number regulation in acute renal failure. Acute tubular necrosis is the most frequent form of parenchymal acute renal failure. The main causes are ischemia-reperfusion, sepsis and nephrotoxic drugs. Exogenous factors such as nephrotoxic drugs and bacterial products, and endogenous factors such as lethal cytokines promote tubular cell apoptosis. Such diverse stimuli engage intracellular death pathways that in some cases are stimulus-specific. We now review the role of apoptosis in acute renal failure, the potential molecular targets of therapeutic intervention, the therapeutic weapons to modulate the activity of these targets and the few examples of therapeutic intervention on apoptosis.
Insights
Apoptosis regulates cell numbers in acute renal failure, a condition often caused by ischemia-reperfusion or toxins. Understanding these cell death pathways offers potential therapeutic targets for kidney injury.
Area of Science:
- Nephrology
- Cell Biology
- Molecular Medicine
Background:
- Apoptosis plays a key role in regulating cell number during acute renal failure.
- Acute tubular necrosis, a common form of acute renal failure, results from causes like ischemia-reperfusion, sepsis, and nephrotoxic drugs.
- Both exogenous (drugs, bacterial products) and endogenous (cytokines) factors can trigger tubular cell apoptosis.
Purpose of the Study:
- To review the critical role of apoptosis in the pathogenesis of acute renal failure.
- To identify potential molecular targets for therapeutic intervention in acute kidney injury.
- To discuss therapeutic strategies aimed at modulating apoptosis in the context of renal failure.
Main Methods:
- Literature review of research on apoptosis in acute renal failure.
- Analysis of molecular pathways involved in tubular cell apoptosis.
- Examination of therapeutic interventions targeting apoptosis.
Main Results:
- Diverse stimuli activate specific intracellular death pathways leading to tubular cell apoptosis.
- Several molecular targets within these pathways have been identified for therapeutic modulation.
- Limited but promising examples of therapeutic interventions targeting apoptosis in acute renal failure exist.
Conclusions:
- Apoptosis is a significant contributor to cell loss and organ dysfunction in acute renal failure.
- Targeting apoptosis pathways presents a promising therapeutic avenue for treating acute kidney injury.
- Further research is needed to develop effective apoptosis-modulating therapies for renal failure.
Related Concept Videos
Acute Kidney Injury II: Pathophysiology
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Acute Kidney Injury V: Interprofessional Care
Cellular Injury V: Apoptosis and Autophagy
Acute Kidney Injury I: Introduction
Acute Kidney Injury III: Clinical Manifestations
