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Friday August 12, 10:57

Sperm has been recreated in the laboratory

The sperm was used to fertilize the eggs and the result gave "young pups in good health
The sperm was used to fertilize the eggs and the result gave "young pups in good health

Japanese scientists announced Friday they had first managed to recreate functional sperm from embryonic stem cells of a mouse, a breakthrough that could one day help to combat human sterility. The sperm was used to fertilize the eggs and the result gave "young pups in good health who grew up to become very fertile male and female mice," says the study conducted by the Japanese scientists.

But this technology could not be used on humans for a decade, says the research team from Kyoto University. The experience is nevertheless exciting because it breaks down what was one of the main obstacles in biology: recreate sperm from embryonic cells, known as primordial stem cells, which can then become functional .

"This is the first study to report a generation of germ cells from fully functional cells (embryonic stem) ES," insisted the author of the study, Mitinori Saitou, Professor, Department of Anatomy and Cell Biology, University of Kyoto.

The researchers used their experience with mice that were unable to produce normal sperm. They injected their stem cells derived from primordial germ cells or PGC. These PGC "produced sperm with normal appearance, which was then used to fertilize eggs successfully," says the study.


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