Intra-erythrocytic stages of malaria parasites can alter the surface
of
their host cells and release toxins which induce the
production of cytokines, which in turn can up- or down-regulate the
expression of adhesion receptors on the surface of
microvascular endothelial cells. New adhesion receptors on endothelial
cells provide the parasite with increased chances
of survival despite an increasing level of host immunity. In order to
take advantage of these new opportunities for survival,
the parasite itself needs to make best use of its considerable ability
to vary its surface antigens and adherent molecules.
The paper describes the various players in this survival game and
articulates a working hypothesis to explain how it may all fit together.