Find out how to clone people

After more than 15 years of scientific failure around the world, US biologists finally created human stem cells with the same technique used to clone Dolly sheep in 1996.

The method used by scientists is: Transplanting gene material from an adult cell into a DNA-removed egg.

The result is human embryonic stem cells, also known as magic cells, capable of turning into any of the 200 cells that make up a human being.

The achievements described in the article published in the journal Cell May 15 may open up a great prospect for the field of stem cell medicine - which has long been subject to many technical and ethical obstacles.

So far, the source of human stem cells is from human fetus, so many people criticize in moral aspect. Meanwhile, the technique that scientists at Oregon University of Science & Health and Oregon National Primate Research Center use has not been fertilized by human eggs.

The stuffed corpse of Dolly sheep is on display at the Scottish National Museum

Removal of human embryos can promote the use of stem cells to replace damaged or damaged cells in people with heart disease, Parkinson's disease, multiple sclerosis, spinal injury and many incurable diseases. other.

However, this achievement also leads to the possibility of human cloning, or making copies of certain living individuals.

Even before the results of the study were published, the British monitoring organization of Genetic Alerts in the UK objected to the study: 'Scientists can finally create a cloned child by method. create embryos for asexual. Therefore it is necessary to issue a ban on international duplication before any research like this takes place. It's irresponsible to publish research like this. '

In contrast, many scientists consider this a great success.'This research is unprecedented success. They succeeded while many groups, including us, failed several times , 'said stem cell biologist George Daley of Harvard Stem Cell Institute.

The most infamous failure is the case of biologist Hwang Woo-suk at Seoul National University (Korea). In 2005, Hwang and some colleagues became the focal point of the world when they announced in Science magazine that they created human stem cells through multiplication techniques - similar to the methods scientists use. use Oregon. In the end, it turned out Hwang's claim was a lie, creating the most scandalous science fraud in the last decade.

If Oregon scientists' achievements are correct and can be repeated by other scientists, this is the third method to create human embryonic stem cells.