Two particular repressor genes in a family of regulatory genes are vital for controlling cell proliferation during development of the placenta, according to a new study by researchers with the Ohio State University Comprehensive Cancer Center – Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC – James). The two genes are called E2f7 and E2f8. Their absence in stem cells results in a placenta made up of overcrowded and poorly organized cells that cannot properly transport oxygen and nutrients or support normal embryonic development.
