“We were able to show that there is only a single type of microglia in the brain that exist in multiple flavours,” says project head Prof. Dr. Marco Prinz, medical director of the Institute of Neuropathology at the Medical Center — University of Freiburg. “These immune cells are very versatile all-rounders, not specialists, as has been the textbook opinion up to now,” sums up Prof. Prinz.
A team of researchers under the direction of the Medical Center — University of Freiburg has created an entirely new map of the brain’s own immune system in humans and mice. The scientists succeeded in demonstrating for the first time ever that the phagocytes in the brain, the so-called microglia, all have the same core signature but adopt in different ways depending on their function. It was previously assumed that these are different types of microglia. The discovery, made by means of a new, high-resolution method for analyzing single cells, is important for the understanding of brain diseases. Furthermore, the researchers from Freiburg, Göttingen, Berlin, Bochum, Essen, and Ghent (Belgium) demonstrated in detail how the human immune system in the brain changes in the course of multiple sclerosis (MS), which is significant for future therapeutic approaches. The study was published on 14. February 2019 in the journal Nature.
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