Apigenin unveiled: an encyclopedic review of its preclinical and clinical insights

Apigenin, a natural flavonoid prevalent in a variety of fruits, vegetables, and herbs, has attracted significant interest due to its wide range of pharmacological effects and therapeutic potential. This review aims to provide an in-depth analysis of apigenin from both preclinical and clinical perspectives, emphasizing its diverse roles in health management and disease treatment. Preclinical research highlights apigenin's effectiveness across numerous biological processes, including its anti-inflammatory, antioxidant, anti-cancer, anti-diabetic, neuroprotective, cardioprotective, and antimicrobial properties. The compound exerts its effects through the modulation of various signaling pathways, enzyme activities, gene expression, and cellular mechanisms. Apigenin's capacity to inhibit tumor growth, induce apoptosis, and suppress angiogenesis and metastasis points to its significant anti-cancer potential. Additionally, emerging clinical studies are beginning to affirm apigenin's therapeutic benefits, showing positive effects in treating cancer, cardiovascular diseases, diabetes, neurodegenerative disorders, and inflammatory conditions. Clinical trials have evaluated apigenin's safety, bioavailability, and efficacy, shedding light on its pharmacokinetics and pharmacodynamics. The review also addresses the challenges and opportunities within apigenin research, such as its limited bioavailability, potential drug interactions, and the need for standardized formulations. It discusses strategies to improve apigenin's bioavailability, including nanoformulations and combination therapies. In summary, this comprehensive review synthesizes current knowledge on apigenin, focusing on its extensive pharmacological activities and therapeutic promise. Future research and clinical trials are necessary to better understand apigenin’s mechanisms of action, refine therapeutic dosing, and confirm its efficacy across various diseases, ultimately facilitating its application in clinical settings.