AN AMERICAN biotech company last week confirmed reports that it is trying to
create cloned human embryos to extract embryonic stem cells from them.
But Advanced Cell Technology of Worcester, Massachusetts, will not say how
far it has got with its research. “Scientific results should be published in
scientific journals,” says ACT’s chief executive, Michael West.
If the company has indeed managed to harvest stem cells from a cloned human
embryo, it has taken an important step towards therapeutic cloning. This is the
idea of growing perfectly matched tissue for transplant from stem cells taken
from a cloned embryo of…
