However, cells derived from
the early epiblast are only able to contribute to embryonic lineages and not those derived from the PrEn [18]--[20], while PrEn cells can only contribute to their own lineage by colonizing the visceral and mostly parietal endoderm in chimera experiments [20]--[22].
Not exact matches
Hayashi then drew on other research showing that one key regulatory molecule (activin A) and a growth factor (basic fibroblast growth factor) could convert cultured
early embryonic stem cells into cells akin to
epiblasts.
Niakan and colleagues predicted from
earlier work with mice and human embryonic stem cells that the protein OCT4 would be necessary for the
epiblast cells to develop correctly.
Laminin - 111 is important during
early epithelial development and differentiation of the
epiblast, and is commonly used as a general attachment protein in cell culture.
This would not be surprising as
early PrEn delaminates from the ICM during the transition between ICM and
epiblast and this cell sorting behaviour is reproduced in EB culture where the VE is always found on the outside.