Monday, April 02, 2007

Sheep organs may save your life

Chimera sheep - 15 per cent human cells and 85 per cent animal cells

I joked about this yesterday in 'Sunday Scroll #6', but really, when you think about what science is doing here, it's quite remarkable.

At this time when someone like Tony Snow has liver cancer, the possibility of a matching liver using Snow's stem cells that can be 'manufactured' in a sheep in two short months, certainly deserves more attention than a mere joke.

Congratulations to Professor Zanjani.

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Scientists create a sheep that's 15% human

Scientists have created the world's first human-sheep chimera - which has the body of a sheep and half-human organs.

The sheep have 15 per cent human cells and 85 per cent animal cells - and their evolution brings the prospect of animal organs being transplanted into humans one step closer.

Professor Esmail Zanjani, of the University of Nevada, has spent seven years and £5million perfecting the technique, which involves injecting adult human cells into a sheep's foetus.

He has already created a sheep liver which has a large proportion of human cells and eventually hopes to precisely match a sheep to a transplant patient, using their own stem cells to create their own flock of sheep.

The process would involve extracting stem cells from the donor's bone marrow and injecting them into the peritoneum of a sheep's foetus. When the lamb is born, two months later, it would have a liver, heart, lungs and brain that are partly human and available for transplant.
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