An age of medical miracles is dawning. Obama administration federal funding rules for embryonic stem cells, or ES cells, will open wide the money floodgates for "the most remarkable potential of any scientific discovery ever made with respect to human health." It has "the capacity to cure maladies of all sorts,including cancer, heart disease, Parkinson's, Alzheimer's," and spinal cord injuries. Or so says Sen. Arlen Specter (D-Pa.) among others.
But paraplegics shouldn’t post their wheelchairs on EBay just yet. If these cures are just around the corner, this corner is far, far away. And that's according to ES cell researchers and funding advocates themselves. The time frame for the first of those miracles seems routinely to be given as a"decade," as in "a decade away" or "a decade off." And it keeps shifting.
Thus it appeared in a 1998newswire article heralding the creation of the first human ES cell culture in James Thomson's University of Wisconsin lab. Thomson and his fellow researchers "warn that such clinical applications are perhaps as much as a decade away," said the article. Perhaps as much? Check your calendar.Addressing a 2007
The scientist didn't blame too little federal funding, as have others, according to the Associated Press.(Indeed, it's common for major publications to claim ES cell research has been "banned.") Rather Thomson blamed simple biology.
Among other problems, ES cells require permanent use of dangerous immuno suppressive drugs. They have a nasty tendency to form tumors both malignant and benign including teratomas– meaning "monster tumor." Teratomas can grow larger than a football and can contain eyeball parts, hair, and teeth. Yech!
Okay, so how many "decades?"
"The routine utilization of human embryonic stem cells for medicine is 20 to 30 years hence," embryonic stem cell research advocate William Haseltine and then-chief executive officer of Human Genome Sciences told Agence France Presse in 2001. "The time line to commercialization is so long that I simply would not invest," he added.
Some ES cell researchers believe "threeto five decades" is a realistic time line, while British fertility expert Lord RobertWinston said in a 2005 lecture,"I am not entirely convinced that embryonic stem cells will, in my lifetime, and possibly anybody's lifetime for that matter, be holding quite the promise that we desperately hope they will."
One wonders if ES cell research patient-advocates like Michael J. Fox,Michael Kinsley, and Mary Tyler Moore would be so enthusiastic if they knew this.
That's especially so given that ES cells are hardly the end-all and be-all of regenerative medicine, with stiff competition from adult stem cells(AS cells) and what are called "induced pluripotent stem cells. These iPS cells, engineered from mature human skin cells, are just as flexible as embryonic ones. But as with AS variety, they have neither the health concerns nor moral baggage of the embryonic ones.
Tellingly, the AP article about Thomson's 2007 speech said, "One day, some believe [ES] cells will become sources of brain tissue, muscle and bone marrow to replace diseased or injured body parts." Which is to say they may be able to do what AS cells have already been doing for years, either routinely or experimentally. Life-saving marrow regeneration with stem cells dates back to 1956.
AS cells have now treated scores of illnesses including many cancers, autoimmune disease, cardiovascular disease,immunodeficiency disorders, neural degenerative diseases, anemias and other blood conditions. They've been used in over2,000 human clinical trials. There has never been an ES cell clinical trial. Former National Institutes of Health director Dr. Bernadine Healy,once an EScell research enthusiast," now calls them "obsolete."
That's why it hardly makes sense to vastly increase federal research funding for ES cells. Medical research spending is always a zero sum game.However big the overall budget, every dollar approved for one grant is a dollar lost to others.
In justifying his stem cell research executive order, President Barack Obama cited "a consensus of "the majority of Americans." Actually, the polling responses vary tremendously depending on the questions asked. But no decision is better than the information upon which it's based. What might Americans think if they knew the ES cell research"decades away" secret?
Michael Fumento is a, journalist, and attorney specializing in science and health issues as well as author of BioEvolution: How Biotechnology is Changing Our World .
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