Stem cells and cancer cells have enough molecular similarities that the former can be used to trigger immunity against the latter.
An international team has created human embryonic stem cells from adult skin cells for the first time.
April 21, 2014|
WIKIMEDIA, ID711Researchers have grown human embryonic stem cells (hESCs) from an adult’s skin cells, according to a paper published last week (April 17) in Cell Stem Cell. The team, led by Dong Ryul Lee of the CHA Stem Cell Institute in Korea and Robert Lanza of the biotech firm Advanced Cell Technologies (ACT), used somatic cell nuclear transfer (SCNT), a technique in which the nucleus of an female egg cell is removed and replaced with the nucleus of a donor’s cell—the same technique used to clone Dolly the sheep in 1996.
Although the technique was first used last year to create hESCs from a donor nucleus taken from an infant, the current study used skin cells from a two men—one 35 years old and the other 75 years old. “There are many diseases, whether it’s diabetes, Alzheimer’s or Parkinson’s disease, that usually increase with age,” Lanza told NPR’s Shots blog, so creating stem cells using DNA from older donors is more useful for finding medical therapies than from infants.
“Overall, I think this paper is an exciting, important, and technically convincing,” Paul Knoepfler of the University of California at Davis who studies stem cells and was not involved in this study wrote on his blog. “SCNT ES cells may give us another potential tool to help patients via stem cells.”
The finding, however, also brings old bioethics concerns to the fore. “This and every technical advance in cloning human tissue raises the possibility that somebody will use it to clone a human being, and that is a prospect everyone is against,” Marcy Darnovsky, executive director of the Berkeley, California-based Center for Genetics and Society told The Washington Post.
April 21, 2014
How long before this one is outed as a fabrication?
April 21, 2014
I personally do not see what is wrong with cloning human beings. And I'm sure it will happen when the skills to do so are surer .
It was once thought immoral to open up dead bodies for the study of anatomy; that hurdle wad crossed. Then came the hurdle of opening up human beings to remove organs like the appendix but the bio ethical hurdle ( as it was then conceived) was also crossed .when the intellectual shock if cloning human beings is eventually overcome, the hurdle will self efface. It will start with manufacturing of parts: eg vagina. Oesophagus etc and eventually whole human. No knowledge has ever been developed and successfully hidden away cos of artificial restraints. The natural tendency is use it. Should the knowledge turn out to be harmful, the law of natural selection will apply and such knowledge or its use will go extinct.