Infertile men around the world may soon find relief from the fact they aren’t naturally able to impregnate their partners, because lab-grown sperm cells will be able to do it for them. In a world first, French scientists say they’ve grown fully functioning sperm.
For nearly 15 years, scientists have been trying to grow sperm cells in the lab in order to help the tens of thousands of men who are unable to conceive on their own. But on Friday, researchers from the biotech company Kallistem announced that by the end of 2014 they had successfully grown “complete human spermatozoa in vitro” using patients’ testicular biopsies “containing only immature germ cells, or spermatogonia,” the company said in a statement, according to AFP.
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