Earlier this month, Israeli scientists shared their achievements that sparked new controversy worldwide. for the first time in history without sperm and eggs a mouse embryo was created and this embryo continued to develop without being in a natural uterine environment. Today came the news of a much bigger success from the other side of the world, the US.

The team of scientists from Cambridge University and the California Institute of Technology managed to create mouse embryos without the need for sperm and eggs containing stem cells, just like the Israeli team. In addition, the heart of this embryo began to beat and the foundations of the brain and other organs in the body were laid.

The most developed artificial embryo to date:

To create the embryo, the scientists got help from three different types of stem cells, which play a role in early mammalian development. Stem cells ‘talked’ to each other, as scientists describe them. While one of these stem cells directly led to the creation of a living being, the other two played a role in the growth of the living being’s internal organs.

These three stem cells were combined and the scientists created their new model in the same way as naturally developing mouse embryos. can form the nervous system he saw. The embryo turned into the most artificially developed embryo to date.

Stem cells formed structures that over time would become the basis for the beating hearts and brains in the embryo. Even in the embryo, an embryo develops and receives nutrients in the first weeks. even the yolk sac shared. Although the new method is a big step for the scientific world, humanity is still far from creating a new living being without sperm and eggs. The next stage of science will be to ensure that the internal organs that will form in artificial embryos are healthy, functioning and developing.

The research is published in the journal Nature.