JoVE General
Justyna Jozefczuk, Katharina Drews, James Adjaye
Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics
The quality of mouse embryonic fibroblasts (MEFs) is dictated by the right strain of mouse such as CF-1. Pluripotency-supportive MEFs and conditioned media (CM) obtained from these should contain optimal concentrations of Activin A, Gremlin and Tgfβ1 needed for the Activin/Nodal and FGF pathways to co-operatively maintain self-renewal and pluripotency.