15-keto Prostaglandin E1 is primarily used in medical research to study its effects on inflammation and vascular function. It has been investigated for its potential role in reducing inflammation in conditions such as arthritis and other inflammatory disorders. Additionally, it is studied for its vasodilatory properties and anti-thrombotic effects, including inhibition of platelet aggregation, which may help in improving blood flow and managing cardiovascular diseases. Research also explores its impact on wound healing and tissue repair, making it a compound of interest in regenerative medicine. Its applications extend to understanding cellular signaling pathways and developing therapeutic strategies for various health conditions.