P-Selectin is a type of protein found on the surface of certain cells, particularly those involved in the immune response and blood clotting. It plays a crucial role in the process of inflammation by helping white blood cells adhere to the walls of blood vessels. This adhesion is essential for the immune system to effectively respond to infections or injuries. When P-Selectin is activated, it binds to specific carbohydrates on the surface of leukocytes, allowing these immune cells to migrate to sites of inflammation. This process is vital for healing and fighting off pathogens, making P-Selectin an important factor in maintaining overall health.