Researchers at KAUST and Peking University Third Hospital have created a novel blastoid model for studying early human development using extended pluripotent stem cells (EPSCs). The blastoid is a 3D cell model mimicking the blastocyst phase, avoiding ethical concerns associated with using human embryos. The team showed that blastoids can be cultured to mimic post-implantation development, offering insights into early cell lineages. Why it matters: This innovation provides a way to study human embryogenesis without the ethical constraints of using actual embryos, potentially advancing our understanding of miscarriage and birth defects.
Researchers at King Abdullah University of Science and Technology (KAUST), led by Associate Professor Mo Li, developed an improved method for forming and controlling stem cell-derived embryo models. Using human stem cell-derived blastoids, the team identified the molecular pump V-ATPase as a key driver in the formation of the blastocoel cavity, a crucial structure in early human embryo development. Disrupting V-ATPase activity prevented proper blastocoel formation, revealing how molecular activity generates the physical forces needed for embryo organization. Why it matters: This research enhances the understanding of early human development mechanisms and provides a new platform for studying reproductive health issues like infertility and early pregnancy loss.