Chronic lymphocytic leukemia cell CD38 expression and inducible nitric oxide synthase expression are associated with serum IL-4 levels
2006
B cell chronic lymphocytic leukemia (CLL) CD38 expression is variable and may predict outcome. Inducible nitric oxide synthase (NOS2) expression regulates CLL cell apoptosis. IL-4 and IFN-γ regulate B cell CD38 expression and NOS2 expression. We compared IL-4 and IFN-γ serum levels between CLL patients and normal individuals, and determined whether serum IL-4 and IFN-γ levels correlated with CLL cell CD38 expression and NOS enzyme activity. IL-4 levels, but not IFN-γ levels, differed between normal individuals and CLL patients. Furthermore, there was an association of IL-4 levels, but not IFN-γ levels, with CD38 and NOS2 expression in CLL patients.
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