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Organotypic multicellular spheroid (OMS) (MSC: Ec: HSC of 1:2:2). (A~C) 3D culture without addition of exogenous cytokines (Flt3L −) (×20, inverted microscopy. Scale bar: 100 μm), (D~F) 3D culture with 100 ng/ml Flt3-L (Flt3L +) (×20, inverted microscopy. Scale bar: 100 μm). (G) Percentage of aggregation of OMS cultivated without and with Flt3L (p>0.05).
