Increased levels of circulating cytokines in patients with untreated Hodgkin's disease.
1992
: Expression of several cytokines has been demonstrated in Hodgkin and Reed-Sternberg (HR range 40-140 pg/ml), IL-3 in 5/40 (13%; range 13-26 pg/ml), and IL-6 in 32/56 patients (57%; range 12-332 pg/ml). TNF-alpha and IL-1 beta were detected in only 3/43 patients (7%; range: TNF-alpha: 36-66 pg/ml; IL-1 beta: 389-1505 pg/ml) and G-CSF not at all. All patients with measurable IL-3 levels had both elevated IL-6 and GM-CSF levels, and the majority of patients with elevated IL-6 also had elevated GM-CSF levels and vice versa. In contrast, the 3/40 patients with both measurable IL-beta and TNF-alpha did not have elevated IL-3, IL-6, or GM-CSF levels. Cytokine levels were independent of stage or the presence of B-symptoms, and there was no correlation with any other clinical or laboratory parameter. Elevations of the respective cytokines might be a means to maintain normal blood cell counts in the respective patients with HD.
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