Aristolochic Acid-Induced Nephrotoxicity: Molecular Mechanisms and Potential Protective Approaches

Area of Science:

• Toxicology
• Molecular Biology
• Carcinogenesis

Background:

• Aristolochic acid (AA) from Aristolochiaceae plants is linked to nephropathy and upper urothelial carcinoma (UUC).
• The precise mechanisms of AA-induced toxicity and carcinogenesis remain incompletely understood.
• Current therapeutic strategies for AA-related pathologies are limited due to incomplete mechanistic knowledge.

Purpose of the Study:

• To review the molecular mechanisms of AA-induced nephrotoxicity, focusing on enzymatic bioactivation.
• To discuss agents and strategies for mitigating AA-induced nephrotoxicity.
• To provide an updated overview of AA nephrotoxicity, incorporating recent findings and suggesting future research directions.

Main Methods:

• Literature review of studies on AA nephrotoxicity and carcinogenesis.
• Analysis of molecular mechanisms, including enzymatic bioactivation pathways.
• Synthesis of information on protective agents and their modes of action.

Main Results:

• AA undergoes enzymatic bioactivation to reactive metabolites that induce cellular damage.
• Specific molecular pathways involved in AA-induced kidney toxicity and urothelial cancer are detailed.
• Various agents show potential in reducing AA nephrotoxicity through different mechanisms.

Conclusions:

• Understanding AA's bioactivation is crucial for elucidating its nephrotoxic and carcinogenic effects.
• Identifying and developing protective agents can offer therapeutic avenues.
• Further research is needed to fully elucidate AA mechanisms and optimize protective strategies.