AIM: To investigate the effect of reactive oxygen species( ROS) on the adhesion of neutrophils to bone marrow stromal cells( BMSCs) and its mechanism. METHODS: Murine bone marrow neutrophils were isolated from mouse tibia and femur by density gradient centrifugation. HL60 cells were induced into human mature neutrophils( d HL60 cells) by DMSO treatment. Murine bone marrow neutrophils and d HL60 cells were labeled with CFDA-SE. The adhesion of the CFDA-SE-labeled cells to BMSC monolayer was tested by micropl...