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New research sheds light on the role of proteins and how synapses work
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New research sheds light on the role of proteins and how synapses work

New research sheds light on the role of proteins and how synapses work
News

New research sheds light on the role of proteins and how synapses work

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Findings will be invaluable to studies examining the role of synapse function in the diagnosis and treatment of neurodegenerative diseases - 


Synapses are the power junctions that allow living creatures to function. Popularly associated with learning and memory, they play a more fundamental role in our existence by regulating everything from breathing, sleeping and waking and other bodily functions.


See Also: Synapses: Stability in transformation


Loss of synapses and synapse function sit at the heart of a number of diseases, not just neurodegenerative examples such as dementia and Parkinson's disease but also conditions such as diabetes. We do not fully understand how synapses work, but new research published in Nature Neuroscience sheds new light on the role of proteins in the way in which synapses maintain their signalling.


The research was carried out by an international team of scientists from: the Institute for Biology/Genetics and the Institute of Chemistry and Biochemisty/Structural Biochemistry, Freie Universität Berlin; NeuroCure, Cluster of Excellence, Charité Universitätsmedizin, Berlin; Molecular and Theoretical Neuroscience, Leibniz-Institut für Molekulare Pharmakologie, Berlin; Department of Nanobiophotonics, Max Planck Institute for Biophysical Chemistry, Göttingen; Plymouth University Peninsula Schools of Medicine and Dentistry; the Department of Genetics, University of Cambridge, and; the Institute of Pharmaceutical Sciences, Pharmaceutical Chemistry, University of Graz, Austria.


The team used genetics like a scalpel blade to remove individual proteins from the synapse to identify their different roles within the synapse, and how they maintain synaptic transmission. They used synapses from the fruit fly Drosophila, which compares remarkably closely to synapses in humans.


The results showed that two variations of a protein called Unc13 work separately to regulate synaptic transmission. The study is the first to show how the different forms of this protein work.


Read Next: Children with autism have extra synapses in brain


The findings of the study will prove invaluable to other research studies examining the role of synapse function in the diagnosis and treatment of neurodegenerative and other diseases. A greater understanding of how synapses work may also find a role in identifying unexpected drug targets for specific diseases.


Dr. Iain Robinson, Associate Professor in Neurosciences at Plymouth University Peninsula Schools of Medicine and Dentistry is part of the international research team on this study. He said: "Using a combination of genetics and state of the art imaging allows us to dissect the function of synapses which are used to convey messages in the brain. We have moved another step nearer to understanding the mechanisms employed by synapses and created knowledge which could play a vital role in research projects with the potential to discover breakthroughs in the diagnosis and treatment of a wide range of debilitating and life-changing diseases."


Note: Material may have been edited for length and content. For further information, please contact the cited source.


Plymouth University   press release


Publication

Böhme MA et al. Active zone scaffolds differentially accumulate Unc13 isoforms to tune Ca2+ channel–vesicle coupling.   Nature Neuroscience, Published Online August 15 2016. doi: 10.1038/nn.4364


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