Angelos Papadopoulos, Varvara Chalmantzi, Olga Mikhaylichenko, Marko Hyvönen, Dimitris Stellas, Aditi Kanhere, John Heath, Debbie L Cunningham, Theodore Fotsis, Carol Murphy
Stem Cell Research 50:102133 (2021)
DOI: j.scr.2020.102133
Pubmed: 33383406
Abstract
Human embryonic stem cells (hESCs) are an invaluable tool in the fields of embryology and regenerative medicine. Activin A and BMP4 are well-characterised growth factors implicated in pluripotency and differentiation. In the current study, hESCs are cultured in a modified version of mTeSR1, where low concentrations of Activin A substitute for TGFβ. This culture system is further used to investigate the changes induced by BMP4 on hESCs by employing a combination of transcriptomic and phosphoproteomic approaches. Results indicate that in a pluripotent state, hESCs maintain WNT signaling under negative regulation by expressing pathway inhibitors. Continue reading →