Phagocytic activity in TM cells.

<p>Representative brightfield (A–D) and fluorescence microscopy (E, F) images of control TM cells (A) or TM cells phagocytically challenged for ten days to 1 x10⁶ particles/mL of (B, E) FITC-labeled E. coli; (C, F) Fluoresbrite® Blue carboxylate microspheres, 1 μM diameter; and (D) autologous iris pigment. (G) Flow cytometry quantification of internalized pHRodo-labeled E.coli particles overtime.