Abstract: The present disclosure relates to a new lymphokine molecule, referred to as Monocyte Cytotoxicity Inducing Factor (MCF), and its use as in cancer and other types of therapy. The disclosure further relates to the development of novel Sezary cell hybridomas which secrete MCF and thereby provide a ready source for MCF isolation and purification. Sezary's Syndrome is a leukemic proliferation of OKT4+ lymphocytes. Sezary cells were isolated by differential centrifugation and fused to CEM.8aza.rC, an HGPRTase lacking clone of CEM. The hybrid cells were studied for their ability to produce soluble mediators of human monocyte cytotoxicity. The product of a single clone, FtF3, which bore the surface phenotype of Sezary cells, was characterized. Monocyte cytotoxicity inducing factor was found to be stable at pH 2 for one hour, unlike interferon-gamma, and was found to be more heat stable as well.

Abstract: The present disclosure relates to a new lymphokine molecule termed Monocyte Cytotoxicity Inducing Factor (MCF), to MCF peptides. The disclosure further relates to the development of novel Sezary cell hybridomas which secrete MCF, to the purification of MCF and its constituent polypeptides and to the identification of small peptides with MCF activity. Sezary OKT4+ lymphocytes were fused to CEM.8aza.sup.r.C, an HGPRTase lacking clone of CEM, to generate hybrid cells, certain of which produced soluble mediators of human monocyte cytotoxicity. A single sezary hybrid clone, FtF3, produced a novel monocyte cytotoxicity inducing factor found to be distinct from IFN.gamma. and IFN.alpha.. MCF, purified by dye ligand and ion-exchange chromatography, comprises two polypeptides of 29 and 14.7kD (P29 and P14.7) which can be further purified by preparative SDS/PAGE and hydrophobic chromatography, respectively.

Abstract: The present disclosure relates to a new lymphokine molecule, referred to as Monocyte Cytotoxicity Inducing Factor (MCF), and its use as in cancer and other types of therapy. The disclosure also relates to antibodies that immunologically recognize MCF, as well as to the use of such antibodies in detecting the presence of MCF and biologic samples. The disclosure further relates to the development of novel Sezary cell hybridomas which secrete MCF and thereby provide a ready source for MCF isolation and purification.Sezary's Syndrome is a leukemic proliferation of OKT4+ lymphocytes. Sezary cells were isolated by differential centrifugation and fused to CEM.8aza.sup.r.C, an HGPRTase lacking clone of CEM. The hybrid cells were studied for their ability to produce soluble mediators of human monocyte cytotoxicity. The product of a single clone, FtF3, which bore the surface phenotype of Sezary cells, was characterized.

Abstract: The present disclosure relates to a new lymphokine molecule, referred to as Monocyte Cytotoxicity Inducing Factor (MCF), and its use as in cancer and other types of therapy. The disclosure further relates to the development of novel Sezary cell hybridomas which secrete MCF and thereby provide a ready source for MCF isolation and purification.Sezary's Syndrome is a leukemic proliferation of OKT4+ lymphocytes. Sezary cells were isolated by differential centrifugation and fused to CEM.8aza.sup.r/. C, an HGPRTase lacking clone of CEM. The hybrid cells were studied for their ability to produce soluble mediators of human monocyte cytotoxicity. The product of a single clone, FtF3, which bore the surface phenotype of Sezary cells, was characterized. Monocyte cytotoxicity inducing factor was found to be stable at pH 2 for one hour, unlike interferon-gamma, and was found to be more heat stable as well.

Abstract: A controller for a device moving along a complementary path to a conveyed object, derives basic speed input from the object conveyor and uses a non-invasive sensor system to detect the proximity of the object. The sensor system controls electronic logic which causes a drive unit to match the speed of the device to that of the object over the complementary path. The controller returns the device to the start of the path for iterative utilization.

Abstract: The present disclosure relates to a new lymphokine molecule, referred to as Monocyte Cytotoxicity Inducing Factor (MCF), and its use as in cancer and other types of therapy. The disclosure further relates to the development of novel Sezary cell hybridomas which secrete MCF and thereby provide a ready source for MCF isolation and purification. Sezary'Syndrome is a leukemic proliferation of OKT4+ lymphocytes. Sezary cells were isolated by differential centrifugation and fused to CEM.8azarC, an HGPRTase lacking clone of CEM. The hybrid cells were studied for their ability to produce soluble mediators of human monocyte cytotoxicity. The product of a single clone, FtF3, which bore the surface phenotype of Sezary cells, was characterized. Monocyte cytotoxicity inducing factor was found to be stable at pH 2 for one hour, unlike interferon-gamma, and was found to be more heat stable as well.

Abstract: The present disclosure relates to a new lymphokine molecule, referred to as Monocyte Cytotoxicity Inducing Factor (MCF), and its use as in cancer and other types of therapy. The disclosure further relates to the development of novel Sezary cell hybridomas which secrete MCF and thereby provide a ready source for MCF isolation and purification.Sezary'is Syndrome i a leukemic proliferation of OKT4+ lymphocytes. Sezary cells were isolated by differential centrifugation and fused to CEM.8aza..sup.r C, an HGPRTase lacking clone of CEM. The hybrid cells were studied for their ability to produce soluble mediators of human monocyte cytotoxicity. The product of a single clone, FtF3, which bore the surface phenotype of Sezary cells, was characterized. Monocyte cytotoxicity inducing factor was found to be stable at pH 2 for one hour, unlike interferon-gamma, and was found to be more heat stable as well.