Morphology of newly derived C57BL/6 fES cells cultured in different ES media.

Abstract

<p>A. Expanded blastocysts of C57BL/6 mouse. B, C. Embryonic outgrowth from blastocyst after 2 (B) and 9 days (C) of culture on MEF feeder cells, respectively. D, E, F. ES-like colonies appeared after trypsinization in control ES medium (D), PD- (E) and SC1-supplemented media (F). G. Differentiated colony appeared after trypsinization in control ES medium. Scale bar = 50 µm.</p