Engineering Antioxidants with Pharmacological Applications: Biotechnological Perspectives

Oxidative stress, a state resulting from an imbalance between the generation of reactive oxygen species (ROS) and the body's antioxidant capacity, is a significant contributor to the development of various human pathologies, including malignancies, cardiovascular conditions, neurodegenerative disorders, and the aging process. Antioxidants, both enzymatic and non-enzymatic, are vital in neutralizing free radicals and protecting against cellular damage. Given the limitations of synthetic antioxidants, such as potential toxicity and variable effectiveness, there has been a growing focus on biotechnological methods for producing these essential compounds. This review, titled "Engineering Antioxidants with Pharmacological Applications: Biotechnological Perspectives", explores the latest developments in this field by examining how biological systems are being utilized to create a wide range of antioxidants. We discuss key production strategies, including the use of microbial cell factories, enzyme-driven synthesis, plant cell cultures, and metabolic engineering. The review provides specific examples of biotechnologically derived antioxidants, such as enzymatic defenses like superoxide dismutase, catalase, and glutathione peroxidase, as well as non-enzymatic molecules like carotenoids, polyphenols, and vitamins. We also evaluate the therapeutic potential of these bio-engineered antioxidants, analyzing preclinical and clinical data on their effectiveness in disease prevention and treatment. The mechanisms by which these compounds combat oxidative stress are also discussed. Finally, we address the current hurdles in scaling up production and managing costs while also outlining future research avenues, such as the creation of new production systems, advanced delivery technologies, and the discovery of novel antioxidant compounds through bioprospecting and synthetic biology. This comprehensive review highlights the potential of biotechnology to offer sustainable and impactful solutions for managing oxidative stress and enhancing overall health.