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Cell-mediated immune responses to influenza vaccination in Wegener's granulomatosis


Background Both antibody and cell-mediated immune responses are involved in the defence against influenza. In Wegener's granulomatosis (WG), antibody responses to influenza vaccination appear to be similar to those in healthy controls, but cell-mediated responses have not been studied.

Objective To determine whether cell-mediated responses to influenza vaccination in WG vary from those in controls.

Methods Twenty-five patients with WG and healthy controls received subunit influenza vaccine. Peripheral blood mononuclear cells were obtained before and 1 month after vaccination. Cell-mediated responses to A/H1N1 and A/H3N2 were assessed using interferon γ (IFNγ) ELISpot and intracellular cytokine staining for IFNγ, tumour necrosis factor and interleukin 2.

Results Before vaccination, patients and controls showed similar recall responses to A/H1N1 and A/H3N2. After vaccination, patients and controls showed similar levels of increase in spot-forming cells against A/H1N1 and A/H3N2. By flow cytometry, upon vaccination, proportions of cytokine-producing CD4 T cells increased in patients and controls for A/H1N1 and A/H3N2.

Conclusions Cell-mediated responses to influenza vaccination in patients with WG are comparable to those in healthy controls.

Dutch Trials Register number NTR1130.

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