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A role for SLC10A4 in structural remodelling and transmitter release at the mouse neuromuscular junctions
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Developmental Genetics.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Developmental Genetics.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Developmental Genetics.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Developmental Genetics.
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(English)Manuscript (preprint) (Other academic)
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:uu:diva-214138OAI: oai:DiVA.org:uu-214138DiVA: diva2:684244
Available from: 2014-01-07 Created: 2014-01-07 Last updated: 2014-02-10
In thesis
1. Modulation of Neuronal Functions: the Role of SLC10A4
Open this publication in new window or tab >>Modulation of Neuronal Functions: the Role of SLC10A4
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[en]
SLC10A4-Mediated Modulation of Neuronal Functions
Abstract [en]

Mental health of a person depends on the correct functioning of the brain. The brain and the spinal cord contain many types of cells, of which one important type are called the neurons. Neurons are special in the way they connect to each other to form large networks. The chemicals called transmitters are packed at the nerve endings into tiny packets called vesicles and when a signal arrives these vesicles fuse immediately to the attached cell surface and release their contents. The role of the synaptic vesicular transporter proteins is to ensure proper packing of transmitter molecules that can be released upon stimulation. Vesicular packing is an important process. The carrier proteins involved in packing work in coordination to determine the amount and type of transmitters to be packed. Missing a carrier protein from the vesicles might lead to improper packing and inaccurate signaliing. These signaling molecules are known for their implications in many psychiatric and neurological disorders like Alzheimer’s disease, Parkinson’s disease, Schizophrenia, and attention deficit to name just a few. 

How a vesicular transporter can affect the modulatory functions of aminergic neurons is the subject of this thesis. This thesis reports on the effects of the loss of a vesicular orphan transporter. Study I demonstrates the localization of this protein to monoaminergic and cholinergic terminals. It reports the effect of the loss of Slc10A4 on vesicular dopamine uptake, synaptic clearance of dopamine and hypersensitivity of animals to dopamine related psychostimulants. Study I also provides evidence for ATP as a possible ligand for SLC10A4 protein. Study II provides data on the clinical relevance of Slc10A4 in playing a protective role against vulnerability to epilepsy. It reports that loss of Slc10A4 renders the animals hypersensitive to cholinergic drugs. Study III provides a closer look at individual cholinergic synapses at neuromuscular junctions in mice lacking Slc10A4. The structural and electrophysiological properties of the NMJ are found compromised because of the loss of this vesicular protein. Taken together, this thesis presents a SV protein’s perspective of viewing at modulation of synaptic transmission.

Place, publisher, year, edition, pages
Uppsala: Uppsala universitet, 2014. 50 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 964
Keyword
dopamine, acetylcholine, central nervous system, neuromuscular junctions, electrophysiology, monoamine, synaptic transmission, neuromodulation
National Category
Neurosciences
Research subject
Neuroscience
Identifiers
urn:nbn:se:uu:diva-214162 (URN)978-91-554-8838-3 (ISBN)
Public defence
2014-02-21, B21, Biomedical Centre, Uppsala, 13:15 (English)
Opponent
Supervisors
Available from: 2014-01-28 Created: 2014-01-07 Last updated: 2014-02-10

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