the influence of psk , a protein bound polysaccharide from coriolus versicolor on various immunological parameters was studied , psk was found to enhance b cell activity as measured by the spleen plaque-forming cell assay in mice , and to stimulate mouse macrophages as determined by an enhancement of carbon clearance and an increase in the phagocytosis of opsonized sheep red blood cells by peritoneal mouse macrophages in vitro .
C0007634
cell
C0031308
phagocytosis