przybyla_diffusiblesignaling_01

Figure 1: (A) Schematic of microfluidic perfusion device and mESCs growing in a single chamber. (B) Growth analysis of perfusion cultures in differentiation medium (N2B27) supplemented with Fgf4, and soluble factor-saturated medium (N2B27+CM). (C) Images of cells cultured under perfusion in the indicated conditions and corresponding growth analysis. (D) Fluorescent images of cells grown under perfusion in the indicated conditions and corresponding Sox1-GFP+ cell frequency assessed by flow cytometry. * = p