Scientists have created a proto-marrow stem cells
Biologists from the Institute of Molecular Biotechnology of the Austrian Academy of Sciences in Vienna turned the culture of "blanks" of neurons in some semblance of a human brain, inside which there are "working" of the network of nerve cells, according to RIA Novosti.
American biologists were able to grow stem cells from a particular structure of neurons and other cells that resembles a human brain on the device, which will in the near future, the use of such artificial "brains" to study the work of the mind and its disorders, according to a paper published in the journal Nature .
Over the past two decades, biologists have learned to turn stem cells into the "adult" tissue of bones, muscles, skin, and nervous system. Culture "stem" of neurons may be the cure for Alzheimer's and other neurodegenerative diseases. For crops such scientists trying stem cells isolated from the biologically active molecule, causing them to turn at different types of nerve cells.
Team of biologists led by Madeline Lancaster from the Institute of Molecular Biotechnology of the Austrian Academy of Sciences in Vienna took the next step - they transformed the culture of the "blanks" of neurons in some semblance of a human brain, inside which there are "working" of the network of nerve cells.
To do this, scientists have tracked for the way of development of the future of the brain in fetuses of mice and identified a set of proteins and other signaling molecules that "conduct" of its development. The researchers then found similar substances in cultures of embryonic and reprogrammed (iPS) stem cells and were able to use them to grow nerve tissue in a special three-dimensional "matrix".
Accept them "organelle" was very similar to the human brain. Thus, he had easily distinguishable bark set of several divisions, similar parts fetus or infant brain, and there arose a group of interconnected neurons present in similar regions of the human brain. Scientists believe that these crops can be used to study the nature of microcephaly and other genetic abnormalities in brain development today, as well as the mechanics of our consciousness and mind in the future.
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