Gr1^int and Gr1^hi cells sorted from <i>M. tuberculosis</i> infected NOS-/- mice expressed arginase I and IL-17.

<p>Specific populations of Gr1^int or Gr1^hi cells were sorted from infected NOS-/- mice in an attempt to further characterize Gr1^int and Gr1^hi cell function during tuberculosis using flow cytometry. Panel A, demonstrates pre-sorted Gr1+CD11b+ cells which were then further characterized. Gr1^hi and Gr1^int sorted cells (B, C) both demonstrated high expression of arginase I and IL-17. Panel D shows the isotype controls for arginase-1 and IL-17A.