Morphological characteristics of cells migrating in response to SDF-1. After migration, cultured cells were analyzed for their morphological characteristics. Dot plot analysis (FSC versus SSC) of starting population (A), cells migrated in response to SDF-1 (B), and cells migrated in absence of SDF-1 (C) are shown. May-Grunwald-Giemsa staining of the starting cell fraction (D) and the cell fraction that migrated in response to SDF-1 (E) are shown.