In a scientific first, Japanese researchers create offspring using eggs from cells of male mammals — Male mice XX cells were grown into egg cells, and fertilized in vitro with sperm from another male mice
https://www.japantimes.co.jp/news/2023/03/25/national/science-health/mouse-offspring-eggs-ips-cells/
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Excerpt from the linked summary^1 about a *Nature* paper:^2
>A team of Japanese researchers has succeeded in creating mouse offspring from eggs made using induced pluripotent stem cells, or iPS cells, created from male mice.
>It is the first time in the world that eggs were produced from cells taken from male mammals. The research by the team, led by Osaka University professor Katsuhiko Hayashi, was published in British science journal *Nature*.
>Hayashi’s team focused on the fact that the Y chromosome in male cells disappears with age, leaving the cells with a single X chromosome.
>The team cultured iPS cells created from male mice cells over several generations to produce cells without the Y chromosome, and then made them into cells with two X chromosomes using a special compound.
>A total of 630 such fertilized cells were then implanted in the uterus of female mice, resulting in the births of seven mice, all of which were later confirmed to have grown up.
>But many challenges remain in applying the technology to humans. It is expected to take about 10 years before technology to create human egg cells from iPS cells is developed.
^1 Japan Times/News2u Holdings, 25 Mar. 2023, https://www.japantimes.co.jp/news/2023/03/25/national/science-health/mouse-offspring-eggs-ips-cells/
^2 Murakami, K., Hamazaki, N., Hamada, N. *et al*. Generation of functional oocytes from male mice in vitro. *Nature* (2023). https://doi.org/10.1038/s41586-023-05834-x
Another win for the hikikomori! 2D>3D! /s
Incels, rejoice!
This could be just the breakthrough that the women-hating religions are looking for!
“Implanted in the uterus of female mice”
Sorry fellas, you’re still gonna have to actually talk to a girl