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. 2012 Apr 18;7(4):e34792. doi: 10.1371/journal.pone.0034792

Figure 1. Phagocytic activity in TM cells.

Figure 1

(A) Fluorescence microcopy image of human TM cells phagocytically challenged with pHRodo-labeled E. coli (1×10 6 particles/mL). Note the puncta red staining indicating the presence of engulfed E. coli particles. (B) Light microscopy image of human TM cells phagocytically challenged to pigment particles (1×10 6 particles/mL). (C) Electron micrograph image of human TM cells phagocytically challenged to pigment particles. Note the presence of numerous engulfed pigment particles (p) contained in membrane-bound organelles.