Creation of mammal with two biological fathers could pave the way for new fertility treatments in humans!

 | Post date: 2023/03/28 | 
Scientists at Kyushu University in Japan have created mice with two biological fathers by generating eggs from male cells, a development that opens up radical new possibilities for reproduction. In this study, they efficiently converted the XY chromosome set to XX without an additional Y chromosome in mouse pluripotent stem (PS) cells. In addition, this chromosomal alteration successfully eradicated trisomy 16, a model of Down’s syndrome, in PS cells. Artificially produced euploid XX PS cells differentiated into mature oocytes in culture with similar efficiency to native XX PS cells. Using this method, they differentiated induced pluripotent stem cells from the tail of a sexually mature male mouse into fully potent oocytes, which gave rise to offspring after fertilization. 
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