There are those opposed to the use of cloning technology to create human embryos for stem-cell research whose concerns emanate from commitments to social justice. One of their arguments runs as follows: The idea driving this medical research is that by creating an embryo through cloning, we can produce embryonic stem cells that are a perfect genetic match for a patient. All that is required to conduct the cloning is a skin cell from which to extract the patient’s DNA and…a human egg.
Where, cry out the social justice advocates, are we going to get all these eggs for all these patients? Do the math, they suggest: 17 million American diabetics, needing anywhere from 10 to 100 eggs each, since the cloning technology is far from efficient…and even if you can pull that off, Christopher Reeve is still not walking, Michael J. Fox and Janet Reno still tremble and Ronald Reagan still doesn’t remember who Ronald Reagan was. The social justice folk maintain that the billions of eggs required for embryonic stem cell therapies for the millions of Americans suffering from chronic and degenerative diseases will be obtained through exploitation of poor women in this country and the world over. Surplus value will take on an even more nefarious meaning.
Still, the early results from embryonic stem-cell therapy in mice are so dramatic that not to pursue this medical research is recognized as morally obscene and just plain stupid. At the University of California, Dr. Hans Keirstead was able to implant neurological tissue derived from embryonic stem cells in a mouse with partial spinal cord injury so that after eight weeks, the mouse had regained most of its ability to walk and, of major significance to the quarter-million Americans suffering from this tragic condition, had also regained bladder and bowel control. Yet, the question remains, where are we going to get all those eggs?
A call to Stanford University’s Paul Berg, a Nobel laureate who has been testifying to Congress on behalf of embryonic stem-cell research, helps elucidate the answer: When it comes to the research, he says, the quantity required may not be a problem. But if the desired therapeutic potential of embryonic stem cells is fully realized, the need for eggs will be great and could short-circuit the availability of these therapies. But a solution to that may be possible, Berg insists. If research is carried out that identifies the biochemicals in the egg directing the genetic material to develop into an embryo, then we could extract and fractionate those biochemicals and insert them into any skin cell, for example, for use in the cloning process. Voilà! A skin cell becomes an egg, and skin cells are plentiful.
The immediate enthusiasm for this breakthrough scientific idea, which could help Reeve walk again while simultaneously obviating the motive for an exploitative human egg market, is quickly tempered by the full realization of what Berg has explained: When we acquire the ability to use any cell as an egg, we will have removed another obstacle to achieving complete control over human reproduction. Admittedly, complete control over the production of reproduction will require a womb for gestation–but that ultimately should prove to be just another biochemical matter for extraction and fractionation.