<p>FcR expression on effector cells. Expression of FcγR and FcαRI expression was measured by flow cytometry using mAbs specific for FcγRI (CD64, clone 10.1), FcγRIIa (CD32, clone IV.3), FcγRIII (CD16, clone 3G8) and FcαRI (CD89, clone A77). Effector cells were identified in leukocytes by the following surface markers: monocytes: CD14+CD16+, PMNs: CD16+ and NK cells: CD3-CD56+.</p>