This is a beginning though we need to use Chimpanzees. There is really good reason to conjecture that humanity is already a Boar Chimp Chimera that then successfully bred back to preserve the additional DNA.
So obviously such a hybrid can be used to produce usable organs. What ever you think of the overall ethical model, until we can produce organs directly, these strategies must be explored.
The science generated will also be important..
World's first monkey-pig hybrids are born in Chinese lab
as part of ground-breaking bid to grow human organs inside animals for
transplants
- Chimera piglets contained DNA from both pigs and cynomolgus monkeys
- They died within a week of being born at a laboratory in Beijing, China
- Scientists claimed the research aimed to find a way of growing human organs
Two chimera piglets containing monkey DNA have been born in China.
https://www.dailymail.co.uk/news/article-7766123/Worlds-monkey-pig-hybrids-born-Chinese-lab.html
Although
both died within a week and appeared to be normal, the baby animals had
genetic material from cynomolgus monkeys in their heart, liver, spleen,
lung and skin.
Scientists said the
research, which required more than 4,000 embryos to get the piglets,
aims to find ways of growing human organs in animals for
transplantation.
The two piglets, born in Beijing,
China, died within a week. They were made from both pig and monkey DNA.
Scientists said the research aimed to find a way of growing human organs
inside animals for transplantation
'This
is the first report of full-term monkey-pig chimeras', Tang Hai at the
State Key Laboratory of Stem Cell and Reproductive Biology in Beijing
told New Scientist.
Five-day
old piglet embryos had monkey stem cells injected into them that had
been adjusted to produce a flourescent protein, allowing researchers to
find out where the cells ended up.
The
scientists said it was unclear why the two chimera piglets died, but as
eight other normal piglets that were implanted also died, they think
this is a problem with the IVF process rather than chimerism.
Despite the research, some members of the scientific community have warned against creating chimeras due to ethical concerns.
Neuroscientist
Douglas Munoz at Queen's University in Kingston, Canada, said that
research projects like this 'just really ethically scares me'.
'For
us to start to manipulate life functions in this kind of way without
fully knowing how to turn it off, or stop it if something goes awry
really scares me.'
Monkey stem cells were injected into five-day-old pig embryos before they were implanted into sows. Only ten embryos developed
However,
China shows no sign of stopping after proposing in July to create
monkeys with partially human-derived brains in order to better study
diseases like alzheimer's.
And Yale
University stem cell expert Alejandro De Los Angeles has written that
the search for a better animal model to stimulate human disease has been
a 'holy grail' of biomedical research for decades.
'Realising
the promise of human-monkey chimera research in an ethically and
scientifically appropriate manner will require a coordinated approach',
he said.
A human-pig hybrid embryo was created in January 2017, at the Salk Institute in San Diego, but died 28 days later.
It is hoped the research could offer an alternative to organ donation.
Around three people a day die in the UK according to the NHS and 12 in the US because replacement organs cannot be found.
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