That will involve adding human genes to the DNA
of a pig clone so its organs will look more familiar to a human immune system.
Not exact matches
And
of optimizing mammalian
cloning, which is how the company creates the
pigs.
And another litter
of eight piglets
cloned from one
of the
pigs that perished proved healthier and nearly as omega - 3 rich, the researchers revealed in the paper presenting their findings, published online yesterday in Nature Biotechnology.
At least two U.S. companies — ABS Global
of De Forest, Wisc., and Advanced Cell Technology
of Worcester, Mass. — have successfully impregnated cows and
pigs using
cloned cells.
Advanced Cell Technology, for its part, has initiated dozens
of clone pregnancies in cows and some in
pigs.
Since the much - ballyhooed birth
of Dolly the sheep in 1996, scientists have
cloned cattle, horses,
pigs, goats, and other mammals — each a genetic twin
of its parent.
Now, two independent research teams have added
pigs to the list
of species that have been
cloned.
In a 2009 study, University
of Georgia at Athens
cloning expert Steve Stice created 29 chimeric piglets by injecting pluripotent stem cells into
pig embryos before implanting them into a surrogate womb.
In January the team that helped
clone Dolly the sheep revealed another distortion
of nature: five genetically modified
cloned pigs.
Most
of the 335 cattle, sheep,
pig, goat, and mice
clones to date are relatively healthy, he says.
Since Dolly, several university laboratories and companies have used various modifications
of the nuclear transfer technique to produce
cloned mammals, including cows,
pigs, monkeys, mice and Noah.
But the
cloning that led to the creation
of Dolly the sheep in 1996 also failed far more often than it succeeded, and now cattle, sheep,
pigs, and some pets are routinely
cloned.
Scientists have
cloned a variety
of animals, including mice, sheep,
pigs, cows and dogs.
Viagen's been doing this for more than 15 years and has successfully
cloned thousands
of animals including cattle, horses,
pigs, sheep and - yes - dogs and cats.