Related Experiment Video
Updated: Feb 19, 2026

Imaging Approaches to Assessments of Toxicological Oxidative Stress Using Genetically-encoded Fluorogenic Sensors
Published on: February 7, 2018
Biochemical targets of drugs mitigating oxidative stress via redox-independent mechanisms
Bernd Gesslbauer1, Valery Bochkov2
1Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Humboldtstrasse 46/3, Graz 8010, Austria.
Abstract:
Acute or chronic oxidative stress plays an important role in many pathologies. Two opposite approaches are typically used to prevent the damage induced by reactive oxygen and nitrogen species (RONS), namely treatment either with antioxidants or with weak oxidants that up-regulate endogenous antioxidant mechanisms. This review discusses options for the third pharmacological approach, namely amelioration of oxidative stress by 'redox-inert' compounds, which do not inactivate RONS but either inhibit the basic mechanisms leading to their formation (i.e. inflammation) or help cells to cope with their toxic action. The present study describes biochemical targets of many drugs mitigating acute oxidative stress in animal models of ischemia-reperfusion injury or N-acetyl-p-aminophenol overdose. In addition to the pro-inflammatory molecules, the targets of mitigating drugs include protein kinases and transcription factors involved in regulation of energy metabolism and cell life/death balance, proteins regulating mitochondrial permeability transition, proteins involved in the endoplasmic reticulum stress and unfolded protein response, nuclear receptors such as peroxisome proliferator-activated receptors, and isoprenoid synthesis. The data may help in identification of oxidative stress mitigators that will be effective in human disease on top of the current standard of care.
Insights
This review explores a novel pharmacological strategy to combat oxidative stress using
Area of Science:
- Biochemistry
- Pharmacology
- Pathophysiology
Background:
- Oxidative stress, caused by reactive oxygen and nitrogen species (RONS), is implicated in numerous diseases.
- Current treatments involve antioxidants or agents that boost endogenous antioxidant defenses.
- A third approach, using redox-inert compounds, offers a new avenue for managing oxidative stress.
Purpose of the Study:
- To review the third pharmacological approach for ameliorating oxidative stress using redox-inert compounds.
- To identify biochemical targets of drugs that mitigate acute oxidative stress in animal models.
Main Methods:
- Review of existing literature on pharmacological interventions for oxidative stress.
- Analysis of drug targets in animal models of ischemia-reperfusion injury and acetaminophen overdose.
- Identification of molecular pathways modulated by mitigating drugs.
Main Results:
- Redox-inert compounds can mitigate oxidative stress by inhibiting inflammation or aiding cellular coping mechanisms.
- Drug targets include pro-inflammatory molecules, protein kinases, transcription factors, and mitochondrial proteins.
- Other targets encompass endoplasmic reticulum stress pathways, nuclear receptors, and isoprenoid synthesis.
Conclusions:
- Pharmacological mitigation of oxidative stress via redox-inert compounds presents a promising therapeutic strategy.
- Understanding these drug targets may lead to the development of novel treatments for human diseases.
- This approach complements existing therapies for conditions associated with oxidative stress.
Related Concept Videos
Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...
Targets for Drug Action: Overview
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
The Electron Transport Chain
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
Redox Reactions
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Phase I Oxidative Reactions: Overview

