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  • Title: Changes in soluble IL-6 receptor and IL-6 production by polymorphonuclear cells and whole blood cells of breast cancer patients.
    Author: Jabłońska E, Pietruska Z.
    Journal: Arch Immunol Ther Exp (Warsz); 1998; 46(1):25-9. PubMed ID: 9510942.
    Abstract:
    The release of soluble interleukin 6 receptor (IL-6sR) and interleukin 6 (IL-6) was investigated in polymorphonuclear and whole blood cell cultures from untreated patients with breast cancer. IL-6sR and IL-6 were determined in the culture supernatants by a sensitive enzymoimmunological assay. We have shown a decreased ability of unstimulated and stimulated polymorphonuclear cells (PMNs) and whole blood cells (WBC) of cancer patients to release IL-6sR in comparison to a control group. Simultaneously, we have also found an increased capacity of unstimulated cells from the patients to produce of IL-6. The used stimulators-zymosan and lipopolysaccharide (LPS) resulted in increased IL-6sR secretion by PMNs and WBC of patients but did not influence IL-6 production by the same cells. We have also determined the levels of IL-6sR and IL-6 in the sera of cancer patients. The mean concentrations of IL-6sR and IL-6 in the sera of patients were higher than those in the control group. We have not noticed any correlations in the culture supernatant and serum levels of IL-6sR or IL-6 between control and cancer patient groups.
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