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'Fully' lab-grown human eggs may lead to new fertility treatments

IANS  |  London 

In a first, scientists have grown human eggs in a laboratory from its earliest stage to full maturity, an advance that could lead to improved treatment for patients.

Previously, the feat was achieved in mice eggs to produce live offspring. But the process proved tricky in humans.

However, in the new study published in Molecular Human Reproduction, the egg cells were removed from ovary tissue at their earliest stage of development, to the point at which they are ready to be fertilised.

The study explained how human eggs develop at various stages, which could aid research into other treatments and regenerative

"Being able to fully develop human eggs in the lab could widen the scope of available treatments," Evelyn Telfer, at The

For the procedure, the scientists first placed very small, immature human eggs within ovarian tissue in culture in the lab, where they are left to develop.

When the eggs grow and become more than double their initial size, they are separated from the ovarian follicles, before further growth and monitoring.

Eggs and their surrounding cells are then removed from liquid culture to undergo further development in a nutrient-rich membrane.

The technique could help safeguard the of girls with ahead of potentially harmful medical treatment, such as

Immature eggs recovered from patients' ovarian tissue could be matured in the lab and stored for later fertilisation, the researchers said.

Conventionally, patients can have a piece of ovary removed before treatment, but reimplanting this tissue can risk reintroducing cancer.

"We are now working on optimising the conditions that support egg development in this way and studying how healthy they are. We also hope to find out, subject to regulatory approval, whether they can be fertilised," Telfer said.



(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Fri, February 09 2018. 16:36 IST