Marine-Derived Astaxanthin: Molecular Mechanisms, Biomedical Applications, and Roles in Stem Cell Biology

Area of Science:

• Biochemistry
• Pharmacology
• Cell Biology

Background:

• Astaxanthin (ASX) is a xanthophyll carotenoid sourced from marine microalgae and yeast.
• Its chemical structure, rich in functional groups, provides significant antioxidant and anti-inflammatory capabilities.
• ASX has demonstrated potential therapeutic applications in various chronic diseases.

Purpose of the Study:

• To review the natural sources, extraction methods, and biological mechanisms of Astaxanthin.
• To emphasize ASX's role in managing oxidative stress and inflammation-related conditions.
• To highlight its emerging applications in stem cell biology and regenerative medicine.

Main Methods:

• Literature review of Astaxanthin's properties and applications.
• Analysis of molecular pathways modulated by ASX, including PI3K/Akt-Nrf2 and NF-κB.
• Examination of ASX's effects on cellular processes like apoptosis and stem cell differentiation.

Main Results:

• ASX effectively modulates oxidative stress and suppresses inflammatory responses by targeting key signaling pathways.
• It exhibits dual apoptotic effects, being cytoprotective in normal cells and pro-apoptotic in cancer cells.
• Sustainable extraction methods, like supercritical CO2, enhance its industrial viability.
• ASX supports stem cell proliferation, differentiation, and protection against damage.

Conclusions:

• Astaxanthin possesses multifaceted molecular effects beneficial for chronic diseases, including diabetes, cardiovascular conditions, and cancer.
• Its antioxidant and anti-inflammatory properties make it a valuable compound for regenerative medicine.
• Further research into ASX's therapeutic potential is warranted.