Plasmodium falciparum is the most widespread and pathogenic of four species of parasitic protozoa which cause malaria in humans. Comprehensive studies on the immune response to malaria, and development of effective ...

This study demonstrated that macrophage (M(phi)) subpopulations can be isolated from normal and vaccinia virus-immune peritoneal exudate cells after separation on bovine serum albumin (BSA) discontinuous density gradients. ...

The presence of a T-cell marker, Thy 1.2, on noninduced and vaccinia virus-induced hamster cytotoxic cells was studied utilizing a murine monoclonal anti-mouse Thy 1.2 antiserum ((alpha)-Thy 1.2) which detects a Thy 1.2 ...

Rhodococcus equi is the etiologic agent of a devastating pneumonia of sporadic incidence in foals. Opsonized Rhodococcus equi are phagocytosed by equine alveolar macrophages but are ineffectively killed. The respiratory ...

The role of Ca('2+) and other stimulus-response couplers in lymphocyte-mediated cytotoxicity was examined through the use of various pharmacological agents. The calcium ionophore A23187 caused a marked increase in nonspecific ...

Using a chromium-51-release microcytotoxicity assay, naturally occurring cytotoxic cells were demonstrated in peripheral blood and spleens of domestic cats. Lymphocytes from blood and spleen were purified over Ficoll-Hypaque ...