A faithful model of the human blastocyst has been developed which replicates key phases of very early development from 4 to 13 days post fertilization, including attaching to layers of hormone-stimulated endometrial cells in vitro, mimicking implantation in the uterus.
LONDON – After the human brain organoid, here comes the gastruloid – a 3D organized model of key elements of the human embryo at around 18 to 21 days old.
