Dissecting the Crosstalk Between Nrf2 and NF-κB Response Pathways in Drug-Induced Toxicity

Area of Science:

• Molecular Biology
• Toxicology
• Pharmacology

Background:

• Nuclear factor erythroid 2-related factor 2 (Nrf2) and nuclear factor kappa B (NF-κB) are critical regulators of cellular responses to oxidative stress and inflammation.
• Existing research confirms a significant crosstalk between Nrf2 and NF-κB pathways, influencing each other's activity and downstream effects.
• Drug-induced organ toxicities (hepatotoxicity, nephrotoxicity, cardiotoxicity, etc.) pose serious clinical challenges, necessitating the development of protective strategies.

Purpose of the Study:

• To review the molecular mechanisms underlying the interplay between Nrf2 and NF-κB signaling pathways.
• To elucidate the role of Nrf2-NF-κB crosstalk in the pathogenesis of various drug-induced organ toxicities.
• To highlight the potential of targeting this crosstalk for the development of novel protective therapeutics against drug-induced injuries.

Main Methods:

• Comprehensive literature review of pharmacological and genetic studies.
• Analysis of molecular mechanisms governing Nrf2 and NF-κB pathway interactions.
• Examination of evidence linking Nrf2-NF-κB modulation to the amelioration of drug-induced organ toxicities.

Main Results:

• Nrf2 deficiency enhances NF-κB activity, leading to increased inflammatory factor production.
• NF-κB influences Nrf2 transcription and activity, affecting downstream gene expression.
• Modulation of both Nrf2 and NF-κB pathways by protective agents can alleviate drug-induced organ damage.

Conclusions:

• The intricate crosstalk between Nrf2 and NF-κB plays a crucial role in drug-induced toxicity.
• Targeting the Nrf2-NF-κB axis presents a promising therapeutic avenue for preventing and treating drug-induced organ injuries.
• Further research into this crosstalk mechanism is essential for discovering effective protective drugs.