Reactive oxygen species-sensitive inflammatory and redox pathways (ROS-sensitive pathways)

Reactive oxygen species-sensitive inflammatory and redox pathways encompass a broad array of signaling networks that integrate cellular oxidative stress with inflammatory responses. These pathways, including the NF-κB, Nrf2/ARE, and MAPK cascades, are activated by reactive oxygen species (ROS) which act as signaling molecules by modifying specific cysteine residues on target proteins (PubMed: 21233484). In health, these pathways maintain cellular homeostasis and mount protective responses against environmental stressors. However, their chronic or excessive activation is implicated in the pathophysiology of numerous conditions, including atherosclerosis, rheumatoid arthritis, and neurodegenerative disorders like Alzheimer's disease (PubMed: 23675073). Pharmacological intervention typically involves the use of antioxidants, Nrf2 activators, or inhibitors of ROS-generating enzymes to restore redox balance and suppress inflammation (PubMed: 25911331). Because this term describes a collection of interconnected biological processes rather than a single discrete molecule, it is considered a pathway-level description rather than a specific therapeutic target (PubMed: 15123770). Targeting these pathways requires careful consideration of the dual role of ROS in both damage and essential signaling. Consequently, drug development in this area often focuses on specific molecular nodes within the broader network to achieve therapeutic efficacy while minimizing off-target effects.

Other names

ROS-mediated signalingOxidative stress-induced inflammatory pathwaysRedox-sensitive signaling cascadesROS-inflammatory axis

Modulation of redox-sensitive transcription factors such as NF-kB and Nrf2, scavenging of reactive species, and inhibition of ROS-generating enzymes like NADPH oxidase.