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  • Title: Functional abnormalities in granulocytes predict susceptibility to bacterial infections in chronic lymphocytic leukaemia.
    Author: Itälä M, Vainio O, Remes K.
    Journal: Eur J Haematol; 1996 Jul; 57(1):46-53. PubMed ID: 8698131.
    Abstract:
    Leukocyte functions were studied in 22 patients with chronic lymphocytic leukaemia (CLL) and were related to the patients' susceptibility to infections. In CLL patients with a history of infections, compared with CLL patients without infections or healthy controls, there were significant impairments of most granulocyte functions; random migration, N-formyl-methionylleucylphenylalanine (fMLP) and C5a stimulated chemotaxis and chemiluminescence response were decreased. No differences in these functions between CLL patients without infections and healthy controls were observed. Phagocytosis and intracellular killing of granulocytes were intact in all patients with CLL. By univariate analysis, neutrophil count and serum IgG level also predicted susceptibility to infections. By multivariate analyses, granulocyte chemotaxis and chemiluminescence remained as statistically significant predictors of infections. The lymphocyte functions (mitogen-induced lymphocyte proliferation and immunoglobulin production in vitro) were equally impaired in all patients with CLL and differed significantly from the respective functions in healthy control subjects. We conclude that impairments in granulocyte functions contribute to susceptibility to infections in CLL.
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