Pekingiläisen laboratory has managed to create pigs whose body is in the monkey cells. Born two pigs looked just the same as any of the little piggies.
however, They died within a week of birth.
a stem cell and reproductive studies focus on laboratory research Tang Hai told the New Scientist magazine (you move to another service) in the article, that the world is not a previously reported chimeric, which is the pig and monkey cells.
Greek mythology from the kimeeri-the term refers to the organism, which is two, i.e. the species of the cells.
the Chinese investigators goal is to be able to raise animals to human organs, which could be used in transplantation. A team of researchers to admit the experiment has shown, that goal is still far away.4 000 to sit for the embryo was received from two kimeeri to
the Experiment was carried out so that jaavanmakakin cells were modified genetically so that they produce ultraviolet light. Thus, the researchers were able to follow the cells. Next, edit the cells were separated from embryonic stem cells, which were transferred pig embryos a few days after conception.
a Total of 4 000 thus, the embryo was transferred to sow in. They gave birth to a total of ten lives of the little pigs, two of which proved to be kimeereitä was. Also, all non-kimeeriporsaat die.
in Many kimeeriporsaiden organs, including the heart, liver, spleen, lung and skin, were monkey cells, but their contribution remained very small. Only every thousandth or a minimum of every 10 000:h cell was derived from the monkey.
Scholar Tang Shark, according to the worth of animals in rapid death is not known. Because also non-kimeerit died, he says, is it possible that the reason lies rather in conception used in IVF technology as kimerismin of. IVF:to know that it doesn't work nearly as well in pigs than in humans and some other animals.
a team of researchers tries next to get a time of healthy animals, which cells of the greater part is derived from monkeys. If it is successful, can the next goal be to create piglets with a body composed almost exclusively of the monkey cells.Chimeras produced in the past
in the Laboratory produced two animal combinations are not quite unheard of. In 2010, japanese Hiromitsu Nakauchin-led group created a mouse with a rat pancreas tissue.
the Spanish Juan Carlos Izpisúa Belmonten led a team of researchers developed in California at the Salk institute for pig and human combinations, where approximately one hundred thousandth of the cell was derived from the people. For ethical reasons, the embryo was allowed to develop only a month's time.
the Fear was that a pig-the human brain would have developed part of the human brain such as your.
for This reason, the Tang of the Shark group decided to use monkey cells in human cells instead. Now reported experiments in monkey cells, the proportion is clearly higher than the human the number of cells at the Salk institute in the experiments. Yet it is still very small.
New Scientistin the article interviewed an american cell biologist Paul Knoepfler doesn't like the Tang of a Shark and the partners made by the test as an encouraging, rather the contrary.
Knoepflerin according to animal and human kimeereitä may never be able to produce transplant suitable organs for humans. Research in this area is, in his opinion, still good to continue.
El Pa (you move to another service)ís magazine, according to Belmonten group (move to another service) has been developing in China human and monkey kimeeri to. The results have not yet been made public.
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