Regulation of malignant cell growth by the immune system has been extensively studied by cancer researchers hoping to develop immuno therapeutic approaches to cancer management. For years these studies revolved around the recognition and destruction of tumors by cytotox. ic immune effector cells. Recently, however, attention has focused on the leukolysins, which are the soluble cytotoxic molecules secreted by activated leukocytes, because of their anticancer activities. The purpose of this book is to give an overview of the ieukolysins, with emphasis on their ability to regulate malignant...