Wise Young
04-02-2007, 02:47 PM
I know Dr. Zanjani. He used adult stem cells to do this. So, let me explain why this is so interesting and special.
He takes bone marrow cells from a human donor and injects intraperitoneally into a sheep fetus. The fetus incorporates the cells into its own develop and as much as 15% of the cells in the sheep are human. The organs of these sheep are partly compatible with the donor. In fact, they can be completely compatible when all the sheep cells die and only the human cells remain, i.e. those that are the same as the donors.
He did this without embyronic stem cells or the prohibition on implanting human embryonic stem cells into animal fetuses....
Wise.
http://www.mailonsunday.co.uk/pages/live/articles/news/news.html?in_article_id=444436&in_page_id=1770
Now scientists create a sheep that's 15% human
By CLAUDIA JOSEPH - More by this author » Last updated at 15:53pm on 27th March 2007
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.
http://img.dailymail.co.uk/i/pix/2007/03_02/sheep240307_486x386.jpg
He takes bone marrow cells from a human donor and injects intraperitoneally into a sheep fetus. The fetus incorporates the cells into its own develop and as much as 15% of the cells in the sheep are human. The organs of these sheep are partly compatible with the donor. In fact, they can be completely compatible when all the sheep cells die and only the human cells remain, i.e. those that are the same as the donors.
He did this without embyronic stem cells or the prohibition on implanting human embryonic stem cells into animal fetuses....
Wise.
http://www.mailonsunday.co.uk/pages/live/articles/news/news.html?in_article_id=444436&in_page_id=1770
Now scientists create a sheep that's 15% human
By CLAUDIA JOSEPH - More by this author » Last updated at 15:53pm on 27th March 2007
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.
http://img.dailymail.co.uk/i/pix/2007/03_02/sheep240307_486x386.jpg