Eyes have appeared in the brain test tube, capable of seeing15 октября, 2021
The team of scientists from Germany made a breakthrough in the cultivation of organs in the laboratory. They forced pluripotent stem cells in brain organides to form rudimentary eye structures capable of perceiving light and send signals to other parts of the brain.
The human brain is one of the most complex creatures of nature, and to better understand his work, scientists create reduced versions in laboratories — organides. For this, adult donors take skin cells. They are converted back into stem and placed in a culture that imitating the medium in which the brain develops. This is how the organ of the pea size is formed, a three-dimensional model that can be used for research,
Specialists from the University Hospital Dusseldorf made one more step in this direction, growing brain organides with eye glasses, in which the optic nerve connects to the retina. They developed symmetrically, in the front of the mini brain. But even more importantly, that these eye glasses turned out to be functional, with various types of retinal cells that reacted to light and sent the corresponding signals to the brain. Lens and corneal tissues were also formed.
The study shows that this technology is reproducible, although it requires refinement so that organoids can be maintained longer. However, this may cause objections from the Ethics Commission. Despite rudimentaryness, even such a brain can develop the primitiveness of self-consciousness, and the key element can become just vision.
A year ago scientists
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