In 2010, on the coast of the strait of Dmitry LaptevIn the Far East of Russia, a well-preserved body of a mammoth named "Yuki" was found. According to the calculations of scientists, he died about 28,000 years ago, and until today, his body was stored in a frozen soil layer of the earth. Due to the special environment, the soft tissues of the ancient animal remained virtually intact, and scientists even managed to extract cells from them. Recently, biologists from Kindai University in Japan have tried to re-activate their functions.
Researchers manage to extract muscle tissue.as many as 88 nuclear structures. The mouse eggs, which are involved in embryonic development, have become the place for the reactivation of their functions. In order for them to compare with the changes that occur with the mammoth cells, the cells of the modern elephant were introduced into another group of mouse eggs.
After incubating the nuclei, researchers noticed thatthey quickened, but not completely. The cells began to reach some stages that preceded cell division, but the reproduction itself could not be fixed. For example, mammoth cells conducted a process in which chromosomes are attached to spindle structures, before the parent cell disintegrates into two daughter cells.
Unfortunately, the lack of cell division suggeststhat current methods of animal cloning can not be applied to the revival of mammoths. This will be possible only if scientists can bring the cells of an ancient animal to the process of division. However, this experiment turned out to be quite successful, because previously the other team of scientists failed to revive the cells of the 15,000-year-old mammoth, even by half.
Researchers observe biological activity aftertransplanting cell nuclei from yuka into woolly mammoth (dead for 28,000 years) into mice oocytes. Whoa! Paper: https://t.co/3kVI5uiGso pic.twitter.com/D6x3TH84zq
- Steve Hurst (@hurst_sj) March 12, 2019</ p>
Other groups of scientists also want to resurrect mammoths. For example, biologists at Harvard University were going to create an elephant, which will have the main features of their ancient ancestors. More information about the project can be read in our material for 2017.
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