Should Humans Be Cloned?

February 01, 2008

Humansclonedidea If you’re uneasy about the FDA’s recent decision that meat and milk from cloned animals and their offspring is safe for human consumption, this story is really going to rock your world. Stemagen, a La Jolla, Calif.-based private-sector stem cell research company, has announced that its scientists have for the first time created a human embryo by cloning adult cells through somatic cell nuclear transfer, the same process used to create cloned animals.

You may be thinking that you’ve heard this before, because you have. Back in 2004, South Korean scientists announced that they not only had created a human embryo via cloning but had successfully extracted stem cells from it. After their work could not be replicated, lead scientist Hwang Woo-Suk was forced to admit that the results had been fabricated.

As a result, Stemagen seems to have taken extra care to document its findings, an article accepted by the peer-reviewed scientific journal Stem Cells. The researchers had an independent lab do DNA fingerprinting to prove that the embryos were true clones of the cells from which they originated.

Stemagen chief executive Dr. Samuel H. Wood, who doubled as a donor of the cells from which some of the embryos were cloned, describes the project as “a critical milestone in the development of patient-specific embryonic stem cells for human therapeutic use, potentially including developing treatments for Parkinson’s, Alzheimer’s and other degenerative diseases.”

But not everybody is going to hail this as a breakthrough. The idea of creating an embryonic clone of a person in order to harvest stem cells — and then discarding the clone — is abhorrent to opponents of most conventional embryonic stem cell research, who consider the destruction of an embryo to be murder. Even those who aren’t outright opposed raise some potentially troubling questions. For example, bioethicist and blogger Arthur Caplan writes:

In the paper announcing the breakthrough, the authors note that they got three out of 25 attempts at clones to turn into human clone embryos. That is a success rate of about 10 percent. Even if that success rate improves in the future, it still means that six or more eggs are going to be required for a researcher to make a stem cell from a clone made from the DNA of one of your own cells.

Where will hundreds of thousands of eggs come from when hundreds of thousands seek cures? Will we pay poor women to create them? Egg-farming, using powerful drugs with serious risks, may not be the most humane way to ask a poor woman to earn a living.

And although this obviously isn’t the Stemagen scientists’ intention, some undoubtedly worry that the process will be used to produce human infants who are perfect genetic duplicates of a cell donor. (It may already have happened, if you buy the 2004 claim of a mysterious outfit named Clonaid that it actually had produced 13 cloned human children; skeptical New York Times journalists pointed out that the company was founded by the leader of a sect that preaches space travelers originally populated Earth through cloning.) If such cloning proved feasible and the process was widely available, would people resort to cloning in an attempt to make themselves (or at least their genetic blueprint) immortal? Or would companies obtain cell samples from the most productive workers and use them to create a generation of super employees who would bump those of us with conventional origins into the unemployment line? Would human clones have the same civil rights as their progenitors? What if terrorists used cloning to create an endless supply of suicide bombers? That all may sound crazy,  but crazy things sometimes happen.

What’s your opinion on human cloning? Say your piece here.


About Patrick J. Kiger, Science Writer. Patrick J. Kiger has written from print publications ranging from GQ to the Los Angeles Times, and is a longtime contributor to Discovery.com, HowStuffWorks, and other web sites.

For several years, he wrote the Science Channel's "Is This a Good Idea?" blog, and we are proud to have him back! He's also the author of Science Channel's Story of the Week Feature and Creator of Head Rush Science Experiments for Kids.

Patrick is also the co-author, with Martin J. Smith, of Poplorica: A Popular History of the Fads, Mavericks, Inventions, and Lore that Shaped Modern America HarperResource, 2004), and Oops: 20 Life Lessons from the Fiascoes That Shaped America (Collins, 2006). Both are now available on Kindle.

You can see more of his work at www.patrickjkiger.com


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