Broad oxidative stress and inflammatory pathways

Broad oxidative stress and inflammatory pathways refer to the integrated biological processes where reactive oxygen species (ROS) and pro-inflammatory mediators interact to regulate cellular responses to injury and stress. These pathways are not a single molecular target but a collection of signaling cascades, most notably the Nrf2-Keap1 antioxidant response and the NF-κB inflammatory signaling axis (Reuter et al., 2010, PubMed). Under physiological conditions, these pathways maintain redox homeostasis and facilitate immune defense; however, their chronic dysregulation is a primary driver of tissue damage in diseases such as atherosclerosis, chronic obstructive pulmonary disease (COPD), and neurodegeneration (Hussain et al., 2016, PubMed). Therapeutic intervention in these pathways involves a variety of mechanisms, including the activation of cytoprotective enzymes via Nrf2 or the inhibition of cytokine production through NF-κB blockade (He et al., 2020, PubMed). Drugs like dimethyl fumarate and various antioxidants attempt to modulate these broad networks to reduce systemic damage (Biswas, 2016, PubMed). Despite their therapeutic potential, targeting these broad pathways is challenging due to the risk of disrupting essential signaling functions, such as the 'mitohormesis' required for cellular adaptation, which can lead to unintended toxicity or reduced efficacy (StatPearls, 2023). Consequently, while these pathways are central to many pathologies, they are typically addressed by targeting specific, high-leverage molecular nodes rather than the entire system at once.

Other names

Oxidative-inflammatory axisRedox signaling pathwaysPro-inflammatory signaling cascadesOxidative stress and inflammation

Modulation of redox-sensitive transcription factors (e.g., Nrf2 activation, NF-κB inhibition), neutralization of reactive oxygen species, and suppression of pro-inflammatory cytokine production.