20-Hydroxyarachidonic acid is primarily involved in biological signaling pathways, particularly in the regulation of vascular and inflammatory processes. It acts as a metabolite of arachidonic acid and plays a role in modulating blood flow and vascular tone. This compound is also implicated in the immune response, where it influences the activity of immune cells and the production of inflammatory mediators. Additionally, it has been studied for its potential impact on cellular functions, including proliferation and apoptosis, making it relevant in research related to cancer and other diseases. Its role in lipid metabolism further extends its application in understanding metabolic disorders.