http://blogs.discovermagazine.com/80beats/2008/09/26/researchers-create-stem-cells-without-cancerous-side-effects/
The science of stem cell research has taken another step forward, sort of. Scientists are working to improve the science of creating stem cells from adult cells. This eliminates the need for using an embryo to extract cells from. The science behind this process is complex to say the least. Adult cells are extracted, then infused with a virus. The virus alters the cell into a embryotic state. This change allows the cells to grow into other forms of tissue.
Previous work on this science relied on retroviruses, which lead to unpredictable mutations and cancerous cell transformations. This new study uses adenoviruses which have not yielded cancerous cells. The drawback of this is that only 1 in 10,000 to 100,000 adult cells transform into embryotic cells. This is lower than the 1 in 1,000 transformation rate acquired with the use of retroviruses. This success rate will hopefully increase as this new science continues to be researched.
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