Fig. 6From: In vitro differentiation of cGMP-grade retinal pigmented epithelium from human embryonic stem cellsPhagocytic activity of human embryonic stem cell-retinal pigment epithelium (hESC-RPE) cells. The hESC-RPE are incubated in the presence of E. coli Bioparticles conjugate, incubated for 2 h, and their internalization capacity analyzed. The fluorescence intensity of both bioparticles and the hESC-RPE cells alone serve as comparative controlsBack to article page