Signal Factors Secreted by 2D and Spheroid Mesenchymal Stem Cells and by Cocultures of Mesenchymal Stem Cells Derived Microvesicles and Retinal Photoreceptor Neurons

Figure 1

Gathering of MSCs into spheroids. Microscopic images showing MSCs seeded at four different concentrations (2.5 × 10³, 6.25 × 10³, 25 × 10³, and 50 × 10³ cells/drop) aggregated into spheroids different in size in a hanging drop. Scale bar = 200 um.

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