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  • Title: Interleukin-6 and the network of several cytokines in multiple myeloma: an overview of clinical and experimental data.
    Author: Lauta VM.
    Journal: Cytokine; 2001 Nov 07; 16(3):79-86. PubMed ID: 11741345.
    Abstract:
    Study of the network of cytokines has helped identify cell growth factors in multiple myeloma. Plasma cells themselves may produce autocrine interleukin 6 (IL-6) while IL-6 production by bone marrow stromal cells may operate a paracrine mechanism. Involvement of IL-6 in multiple myeloma is indicated by its ability to induce the differentiation of myeloma plasmablasts into mature malignant plasma cells. Differential diagnosis between multiple myeloma and monoclonal gammopathies of undetermined significance (MGUS) is generally based on clinical and laboratory parameters. Nevertheless, evaluation of the serum level of IL-6, C reactive protein, soluble IL-6 receptor, soluble IL-2 receptor together with the activity exerted by IL-3 and IL-4 on some cellular subsets constitutes an additional element in the differential diagnosis of border-line cases. Serum levels of IL-6, soluble IL-6 receptor (sIL-6R), soluble interleukin-2 receptor (sIL-2R) and the expression of membrane-bound IL-2 receptors, both on bone marrow plasma cells and on peripheral blood mononuclear cells are correlated with disease activity and disease stage. In addition, IL-6 and sIL-6R serum levels correlate with the duration of survival, as high values at the time of diagnosis correlate with short duration of survival.
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