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Table 2 Flow cytometric analysis of HLA class II expression on nasal epithelial cells.

From: Staphylococcus aureus enterotoxins induce IL-8 secretion by human nasal epithelial cells

Human nasal epithelial cells

% positive

Mean fluorescence

Normal

2.5 ± 0.63

205 ± 40

Normal + IFN-γ

10.2 ± 2.69

1145 ± 301

Asthmatic

2.03 ± 0.47

193 ± 37

Asthmatic + IFN-γ

11.76 ± 1.87

1013 ± 189

  1. Nasal epithelial cells were detached from culture dishes by means of nonenzymatic cell dissociation solution and were then stained with anti-HLA-DR, P, Q, FITC-conjugated monoclonal antibody. Membrane fluorescence was analysed by flow cytometry.