TY - JOUR T1 - Author's response to Persson letter JF - Thorax JO - Thorax SP - 189 LP - 189 DO - 10.1136/thoraxjnl-2012-202949 VL - 68 IS - 2 AU - Sally Wenzel Y1 - 2013/02/01 UR - http://thorax.bmj.com/content/68/2/189.abstract N2 - Dr Persson raises excellent points regarding the potential for epithelial cells to contribute to the clearance of eosinophils from tissue. We are in agreement that eosinophils can migrate from bone marrow to blood to submucosa to epithelium to lumen. However, the speed of the process, the role and response of each compartment, the stimulus for it and its overall control remain poorly understood. Dr Persson suggests that previous reports show an inverse relationship of tissue compared with luminal/epithelial eosinophils following … ER -