Japanese researchers claimed to have been successful in creating a mouse from a dead cell frozen for 16 years. The Riken scientists have used the dead cell of a mouse that had been preserved at minus 20 degrees Celsius.The scientists extracted a cell nucleus from an organ of the dead mouse and planted it into an egg of another mouse which was alive, leading to the birth of the cloned mouse, the researchers said.
To describe, the scientists extracted a cell nucleus from an organ of the dead mouse and planted it into an egg of another mouse which was alive, leading to the birth of the cloned mouse.Cells from dead bodies have previously been useless as they are ruined in the freezing process. But Wakayama’s team discovered a way to extract a nucleus intact from a frozen cell by grinding cell tissues into multiple pieces.
This successful experiment takes a step in the long impossible dream of bringing back extinct animals such as mammoths.To revive a mammoth, researchers would need to find a way to implant a cell nucleus of a mammoth into the egg of an elephant and then implant the embryo into an elephant’s uterus.
It can be added that the elephant is the closest modern relative of the mammoth, a huge woolly mammal believed to have died out with the Ice Age. But Akira Iritani, a mammoth expert at Kinki University in Osaka, said it was only a matter of time before researchers could find a mammoth for a resurrection project.
Even if it is impossible to recreate a whole animal, the process could create cloned embryonic stem cells for extinct species, giving a boost to research on evolution and zoology.Cloning can be controversial in terms of both bioethics and, if the animals are eaten, food safety.
The findings were published in the Proceedings of the National Academy of Sciences in the United States.