A Membrane System for the Leukocyte Selective Recruitment

A formal description is developed for the phenomenon of leukocyte recruitment that plays a critical role in the immune response. The leukocyte selective recruitment, crucial in immunity, is here modeled as a dynamical system of interactions between leukocytes and endothelial cells, where a special kind of membrane structure turns out to be a very useful tool in the formal analysis of the recruitment process. Due to its complex nature and capability to rapidly adapt to the attack of infectious agents, the immune system may be considered a typical example of complex adaptive system.