Airway regulatory T cells are decreased in COPD with a rapid decline in lung function

Respiratory Research

Table 2 Cell populations and FACS staining characteristics

Population	Staining characteristics	When given in percent, calculated as proportion of
T cells	CD3 +	–
T helper cells	CD3⁺ CD4⁺	CD3⁺
Activated T helper cells	CD3⁺ CD4⁺ CD25^bright	CD3⁺ CD4⁺
FoxP3⁺ regulatory T cells	CD3⁺ CD4⁺ CD25^bright FoxP3⁺	CD3⁺ CD4⁺ CD25^bright

ISSN: 1465-993X