Title |
DGKθ Catalytic Activity Is Required for Efficient Recycling of Presynaptic Vesicles at Excitatory Synapses
|
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Published in |
Cell Reports, December 2015
|
DOI | 10.1016/j.celrep.2015.12.022 |
Pubmed ID | |
Authors |
Hana L. Goldschmidt, Becky Tu-Sekine, Lenora Volk, Victor Anggono, Richard L. Huganir, Daniel M. Raben |
Abstract |
Synaptic transmission relies on coordinated coupling of synaptic vesicle (SV) exocytosis and endocytosis. While much attention has focused on characterizing proteins involved in SV recycling, the roles of membrane lipids and their metabolism remain poorly understood. Diacylglycerol, a major signaling lipid produced at synapses during synaptic transmission, is regulated by diacylglycerol kinase (DGK). Here, we report a role for DGKθ in the mammalian CNS in facilitating recycling of presynaptic vesicles at excitatory synapses. Using synaptophysin- and vGlut1-pHluorin optical reporters, we found that acute and chronic deletion of DGKθ attenuated the recovery of SVs following neuronal stimulation. Rescue of recycling kinetics required DGKθ kinase activity. Our data establish a role for DGK catalytic activity at the presynaptic nerve terminal in SV recycling. Altogether, these data suggest that DGKθ supports synaptic transmission during periods of elevated neuronal activity. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 2 | 50% |
Australia | 1 | 25% |
Unknown | 1 | 25% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 3 | 75% |
Science communicators (journalists, bloggers, editors) | 1 | 25% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 68 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 16 | 24% |
Researcher | 11 | 16% |
Student > Bachelor | 10 | 15% |
Student > Master | 8 | 12% |
Student > Postgraduate | 4 | 6% |
Other | 10 | 15% |
Unknown | 9 | 13% |
Readers by discipline | Count | As % |
---|---|---|
Neuroscience | 18 | 26% |
Biochemistry, Genetics and Molecular Biology | 15 | 22% |
Agricultural and Biological Sciences | 14 | 21% |
Medicine and Dentistry | 5 | 7% |
Unspecified | 2 | 3% |
Other | 6 | 9% |
Unknown | 8 | 12% |