For the first time, fully functional egg cells made of stem cells15 октября, 2021
The History of Gametogenesis in the Laboratory conditions lasted for many years, but so far the scientists have failed to make the process completely independent of supporting cells. Now the Japanese researchers have presented fully functional eggs grown only from stem cells. Their work opens up new reproductive opportunities for a person in the future, although bioethics specialists are already concerned about potential consequences.
The team from the University of Kyushu worked on the study of gametogenesis — the formation and ripening of genital cells — in the conditions of the laboratory for many years. In 2016, they achieved an important result — the creation of functional eggs in a Petri dish of stem cells, however, with the addition of samples from the tissue of the ovarian mice. Without these thinning cells, the eggs did not receive signals that were necessary for ripening, scientists explain.
For the past five years, scientists sought to solve this problem and finally created viable mouse eggs in a test tube,
«The work of scientists is completing the history of Gamenaize in vitro, making the process completely based on stem cells,» commented Richard Anderson from the Edingburg University, who did not participate in the study.
This technology opens up new reproductive possibilities for conception when infertility or, for example, after the treatment of cancer. Although the method for clinical use is still very far, disputes about its use have already begun. Bioethics specialists have already stated that the mass production of egg and spermatozoa can lead to uncertain legal and social consequences, therefore must be justified and regulated.
Meanwhile, American scientists from the University of Virgin
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