Augmentation of thromboxane production in vitro by polymorphonuclears and macrophages exposed to IL1/LP.

Human peripheral blood polymorphonuclear leukocytes (PMNs) and murine peritoneal macrophages (Mø) were stimulated to generate thromboxane upon treatment with highly purified human interleukin 1/leukocytic pyrogen (IL1/LP) at various concentrations. Thromboxane B was measured by radioimmunoassay in the cell-free supernatants of cell suspensions after 1 hour incubation at 37°C. Thromboxane B amounts increased in a way which depended on the dose of IL1 added to the cell cultures. [ABSTRACT FROM AUTHOR]