Stem Cell Breakthrough Eliminates Ethical Concerns?
By Justin Gardner | Related entries in ScienceIt appears as if this is the case.
Two teams of scientists are reporting today that they turned human skin cells into what appear to be embryonic stem cells without having to make or destroy an embryo — a feat that could quell the ethical debate troubling the field.All they had to do, the scientists said, was add four genes. The genes reprogrammed the chromosomes of the skin cells, making the cells into blank slates that should be able to turn into any of the 220 cell types of the human body, be it heart, brain, blood or bone. Until now, the only way to get such human universal cells was to pluck them from a human embryo several days after fertilization, destroying the embryo in the process.
The reprogrammed skin cells may yet prove to have subtle differences from embryonic stem cells that come directly from human embryos, and the new method includes potentially risky steps, like introducing a cancer gene. But stem cell researchers say they are confident that it will not take long to perfect the method and that today’s drawbacks will prove to be temporary.
Still, should we stop research using the other method? Of course not. Until this proves to be the best, most effective way, both should be pursued.
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November 20th, 2007 at 9:04 pm
And every one of the scientists in these teams agrees with that viewpoint.
November 20th, 2007 at 9:56 pm
What about ethical? Are there even such things as “ethical concerns” in medicine? This is bad news for all those ESTC fetishists.
November 20th, 2007 at 10:03 pm
Volokh Conspiracy’s Russell Korobkin has weighed in on this. He is only guardedly optimistic, not just over the effectiveness of this technique but on whether embryo research opponents will buy into it: