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  • Title: Elevation of soluble tumor necrosis factor receptor II in non-febrile patients with acute myeloid leukemia.
    Author: Goetz M, Schiel X, Heussel H, Steinmetz T, Hiddemann W, Weiss M.
    Journal: Eur J Med Res; 2002 Nov 25; 7(11):487-90. PubMed ID: 12568977.
    Abstract:
    BACKGROUND: Tumor necrosis factor alpha (TNF) and its cellular and soluble (s) receptors (TNF-R) are important mediators in acute myeloid leukemia (AML) and infectious complications during cytoreductive therapy. We investigated the serum concentrations of sTNF-RII in previously untreated patients with AML at the onset of cytoreductive therapy and in non-febrile chemotherapy-associated neutropenia. PATIENTS AND METHODS: Of 54 eligible patients with AML, serum concentrations of sTNF-RII could be evaluated in 25 non-neutropenic, non-febrile and in 11 neutropenic, non-febrile patients. RESULTS: At baseline, non-neutropenic, non-febrile AML patients showed high median serum sTNF-RII concentrations of 3,804 pg/mL. In neutropenia, there was a non-significant trend (p = 0.18) to lower median sTNF-RII levels of 3,246 pg/mL. CONCLUSIONS: Serum sTNF-RII concentrations in non-febrile AML patients before chemotherapy are in the range of levels reached in uncomplicated febrile episodes in otherwise healthy individuals. This must be taken into account when evaluating the cytokine profile for sepsis in patients with therapy-associated neutropenia. Concentrations are still elevated in neutropenia, suggesting that a normal number of leukocytes is not necessarily required for the activation of the TNF ligand/TNF receptor system in AML.
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