this post was submitted on 05 Jul 2025
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Quest to create viable human sex cells in lab progressing rapidly, with huge implications for reproduction

Scientists are just a few years from creating viable human sex cells in the lab, according to an internationally renowned pioneer of the field, who says the advance could open up biology-defying possibilities for reproduction.

Speaking to the Guardian, Prof Katsuhiko Hayashi, a developmental geneticist at the University of Osaka, said rapid progress is being made towards being able to transform adult skin or blood cells into eggs and sperm, a feat of genetic conjury known as in-vitro gametogenesis (IVG).

His own lab is about seven years away from the milestone, he predicts. Other frontrunners include a team at the University of Kyoto and a California-based startup, Conception Biosciences, whose Silicon Valley backers include the OpenAI founder, Sam Altman and whose CEO told the Guardian that growing eggs in the lab “might be the best tool we have to reverse population decline” and could pave the way for human gene editing.

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[–] deur@feddit.nl -1 points 21 hours ago (1 children)

Lol go fuck yourself. You actual shitbag. There is one population on earth we should track: humans. Who fucking cares who they live today, losers like you I guess.

[–] GregorGizeh@lemmy.zip -5 points 17 hours ago* (last edited 17 hours ago)

Ah yes I must be racist because I don't think we should be replaced. How does that help the planet?