Rosette and blastogenesis inhibition by plasma from Hodgkin's disease and other malignancies: Positive correlation in stage I and II Hodgkin's disease

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Abstract
The simultaneous presence of both rosette-and mitogen-induced blastogenesis inhibitors was measured in the plasma from 29 patients with active Hodgkin's disease, 21 patients with advanced lung cancer, nine patients with diffuse histiocytic lymphoma, 25 patients with non-Hodgkin's lymphoma, and 17 patients with a variety of solid tumors. Only patients with active Hodgkin's disease consistently demonstrated factors which interfered with both rosetting and mitogenesis when normal allogeneic cells were utilized. While a similar proportion of patients with early and late Hodgkin's disease possessed plasma which could inhibition both tests, a significant correlation between these tests was observed only in Stage I and II disease. Varying degrees of inhibition of these tests was also observed when plasmas from patients with other malignancies were tested. Both lung cancer and histiocytic lymphoma plasma contained a factor which was capable of significantly inhibiting in the rosette assay when compared to normal human serum. Plasma from these patients also demonstrated inhibition of blastogenesis, but unlike Hodgkin's disease, no correlation between these activities could be demonstrated. Neither patients with diffuse or nodular lymphocytic lymphoma nor patients with solid tumors had significant plasma inhibition in either assay.