Genetically modified pigs fit for human transplant

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Genetically modified pigs fit for human transplant

Gene editing breakthrough removes potentially dangerous viruses from host animals

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Friday, August 11, 2017 – 7:17am

A team of US researchers has create the “most genetically modified animals in existence” in a bid to make viable pig-to-human organ transplants a reality.

“The scientists successfully rid 37 pigs of viruses hiding in their DNA, overcoming one of the big barriers to transplanting pig organs to people,” the BBC reports.

The research team, working for biomedical start-up Egenesis, announced in the journal Science that it had produced the piglets with inactivated porcine endogenous retrovirus, known as Perv.

“This research represents an important advance in addressing safety concerns about cross-species viral transmission,” said Egenesis co-founder Luhan Yang. Work would continue, he said, to ensure “safe and effective” organ transplants.

“At four months old—roughly the age the pig would need to be for its organs to be large enough to use in people—the animals seem perfectly normal,” Scientific American reports.

Demand for organs for human transplant significantly exceeds supply. According to the NHS, about 6,500 are on the waiting list for an organ, and last year nearly 500 people died while waiting for a transplant.

“Getting organs from animals — particularly from pigs, whose organs tend to be close in size and work similarly to human organs — could be the solution to that shortage,” Business Insider says.

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