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Morphology of negatively isolated RA-SFB and macrophages upon reculture. When recultured, the RA-SFB obtained by negative isolation with Dynabeads® M-450 CD14 showed almost exclusively spindle-shaped, flat or stellate morphology (A). Recultured CD14+ cells (B) exhibited small, round, macrophage-like morphology with attached magnetobeads, and contained only very few cells with FB morphology. Original maginification: 368 ×.
