Neutrophil CD177 (NB1 gp, HNA-2a) expression is increased in severe bacterial infections and polycythaemia vera.

Br J Haematol

Institute for Clinical Immunology and Transfusion Medicine & Department of Internal Medicine, Justus-Liebig University, Giessen, Germany.

Published: July 2004

The NB1 glycoprotein (CD177, HNA-2a antigen) is exclusively expressed on human neutrophils. As the clinical significance of CD177 expression is unknown, we investigated its expression in healthy individuals before and after stimulation with granulocyte colony-stimulating factor (G-CSF), in patients with rheumatoid arthritis, viral hepatitis, severe bacterial infections and polycythaemia vera. Expression was quantitatively determined by flow cytometry and by real time polymerase chain reaction. Only G-CSF-stimulated individuals and patients with severe bacterial infections and polycythaemia showed a significantly (P < 0.001) increased CD177 expression compared with healthy individuals, indicating that neutrophil CD177 expression can increase significantly in certain clinical conditions.

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http://dx.doi.org/10.1111/j.1365-2141.2004.05027.xDOI Listing

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