The Therapeutic Promise of Kojic Acid: A Comprehensive Review

Area of Science:

• Natural Product Chemistry
• Medicinal Chemistry
• Pharmacology

Background:

• Drug discovery is expensive and has a high failure rate.
• Natural products are a valuable source of therapeutic agents.
• Kojic acid (KA), derived from microbes like Aspergillus, is known for tyrosinase inhibition in cosmetics.

Purpose of the Study:

• To comprehensively review the therapeutic potential of Kojic acid (KA) and its derivatives.
• To explore KA's diverse biological activities beyond cosmetic applications.
• To provide a foundation for developing new drugs based on KA pharmacophores.

Main Methods:

• Systematic literature review of scientific databases.
• Assessment and synthesis of existing research on Kojic acid.
• Analysis of KA derivatives, including Mannich bases, thiazoles, and triazoles.

Main Results:

• Kojic acid exhibits broad biological activities: anticancer, antibacterial, antifungal, antioxidant, antiviral, anti-inflammatory, anticonvulsant, anti-Alzheimer's, antidiabetic, and metal-chelating.
• KA and its analogs show promise as radioprotective agents.
• Hybrid derivatives, like aminochloroquinoline-KA, display significant antimalarial activity.
• Specific derivatives, such as Michael Adducts and dinuclear ruthenium complexes, show potent antitumor activity.

Conclusions:

• Kojic acid possesses extensive therapeutic applications.
• KA derivatives demonstrate significant potential in treating various diseases, including cancer and malaria.
• This review supports the rational design of novel, clinically relevant drugs derived from Kojic acid.