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Nature of immune cells in the human brain disclosed
Researchers from the Netherlands Institute for Neuroscience and Amsterdam UMC have disclosed the nature of how T cells protect the brain against harmful viruses. The results of the study, which are published in Nature Communications, are important for investigating the role of the immune system in numerous brain disorders.
The immune system protects the body against infections and cancer. The so-called T cells play a key role in this process. When T cells do not work properly, an inflammation can develop in for example the brain. Until recently, little was known about the properties of these cells in healthy brains. "With this research, we have gained more knowledge about the location of T cells in the brain, how they look, what kind of inflammatory proteins (cytokines) they produce, and how they are controlled," says researcher and neurologist in training Joost Smolders.
The scientists have found that the two proteins CTLA-4 and PD-1 are present in large quantities on T cells. These proteins, for which the Nobel Prize for Medicine has been awarded to the discoverers this year, are important inhibitors for T cells.
"If we understand the rules of the game, which T cells in the brain adhere to, then we can understand how T cells deviate from this in brain disorders. This can lead to advances in the understanding and treatment of diseases such as Multiple Sclerosis, but also in the treatment of tumors in the brain. "
With financial support from the MS Research Foundation, the scientists have investigated T cells from brain tissue of brain donors from the Netherlands Brain Bank (NBB). "For the understanding of the role of the immune system in brain disorders, a donor program such as the NBB is of crucial importance. The quality of the material makes unique research possible" says Smolders.
Materials provided by Netherlands Institute for Neuroscience - KNAW. Note: Content may be edited for style and length.
Journal Reference:Joost Smolders, Kirstin M. Heutinck, Nina L. Fransen, Ester B. M. Remmerswaal, Pleun Hombrink, Ineke J. M. ten Berge, René A. W. van Lier, Inge Huitinga, Jörg Hamann. Tissue-resident memory T cells populate the human brain. Nature Communications, 2018; 9 (1) DOI: 10.1038/s41467-018-07053-9
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Netherlands Institute for Neuroscience - KNAW. "Nature of immune cells in the human brain disclosed." ScienceDaily. ScienceDaily, 2 November 2018. <www.sciencedaily.com/releases/2018/11/181102083419.htm>.
Netherlands Institute for Neuroscience - KNAW. (2018, November 2). Nature of immune cells in the human brain disclosed. ScienceDaily. Retrieved September 18, 2019 from www.sciencedaily.com/releases/2018/11/181102083419.htm
Netherlands Institute for Neuroscience - KNAW. "Nature of immune cells in the human brain disclosed." ScienceDaily. www.sciencedaily.com/releases/2018/11/181102083419.htm (accessed September 18, 2019).
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