First human eggs grown in laboratory
Human eggs have been grown in the laboratory for the first time, say researchers at the University of Edinburgh.
The team say the technique could lead to new ways of preserving the fertility of children having cancer treatment.
It’s also an opportunity to explore how human eggs develop, much of which remains a mystery to science.
Experts say it was an exciting breakthrough, but more work was needed before it could be used clinically.
It has taken decades of work, but scientists can now grow eggs to maturity outside of the ovary. It requires carefully controlling laboratory conditions including oxygen levels, hormones, proteins that stimulate growth and the medium in which the eggs are cultured.
But while the scientists have shown it is possible, the approach published in the journal Molecular Human Reproduction still needs refinement. It is very inefficient with only 10% of eggs completing their journey to maturity.
Prof. Evelyn Telfer, one of the researchers, told the BBC:
“It’s very exciting to obtain proof of principle that it’s possible to reach this stage in human tissue.
“But that has to be tempered by the whole lot of work needed to improve the culture conditions and test the quality of the oocytes (eggs)
“But appart from any clinical applications, this is a big breakthrough in improving understanding of human egg development.”
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