But as Dr. Lanza says; they may be able to create them but it'll be long before they'll be able use them on humans, as these clones don't last as long as true ESC's do, and there is still the susceptibility for tumor growth.
The same somatic cell nuclear transfer (SCNT) technique was employed by researchers at the Roslin Institute in Edinburgh to produce Dolly the Sheep, the first mammal cloned from an adult cell.
During SCNT, a donor cell nucleus is transferred to an egg cell whose own nuclear DNA has been removed. The egg develops into an early-stage embryo that is a clone of the donor, containing the same genes.
Stem cells taken from the embryo are "pluripotent", having the ability - with the right coaxing - to mature into any kind of tissue in the body, from brain to bone.
In the new study, reported in the journal Cell, scientists transferred nuclei from human skin cells into human egg cells.
They generated "blastocysts", early embryos consisting of a cluster of 150 cells, from which human embryonic stem cells (hESCs) were obtained and grown in the laboratory.
Scientists have previously cloned monkey embryos and mined them for stem cells, but until now been frustrated in their attempts to do the same with humans.
Lead researcher Professor Shoukhrat Mitalipov, from Oregon Health and Science University, said the finding offered new ways of generating stem cells for patients with dysfunctional or damaged tissues and organs.
"Such stem cells can regenerate and replace those damaged cells and tissues and alleviate diseases that affect millions of people," Prf Mitalipov said.
The stem cells demonstrated an ability to convert into several different cell types, including nerve, liver and heart cells.
Prof Mitalipov added: "Furthermore, because these reprogrammed cells can be generated with nuclear genetic material from a patient, there is no concern of transplant rejection.
"While there is much work to be done in developing safe and effective stem cell treatments, we believe this is a significant step forward in developing the cells that could be used in regenerative medicine."