RAW264.7 (1 × 104) cells cultured with HA and β‐TCP samples for 2 and 5 days were collected and then respectively incubated with peridinin chlorophyll protein (Percp, BioLegend, USA)‐conjugated anti‐mouse CD11c and activated protein C (APC, eBioscience, USA)‐conjugated anti‐mouse CD206 at room temperature for 30 min without light after fixation, membrane breaking and blocked with CD16/32 (BD pharmingen) steps. Finally, the cells were resuspended in 200 µL PBS and subjected to FACSCalibur flow cytometry (Beckman, CytoFLEXS, USA).
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