Immune cell migration

Topic

Immune cell migration, also known as leukocyte trafficking or extravasation, is the essential process by which white blood cells move through the circulatory system and cross blood vessel walls to reach sites of infection, injury, or tissue damage. This highly regulated process is a cornerstone of both innate and adaptive immune responses, relying on a cascade of adhesion molecules, chemokines, and cellular signals to direct cells to their target tissues.