Title |
A tachykinin-like neuroendocrine signalling axis couples central serotonin action and nutrient sensing with peripheral lipid metabolism
|
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Published in |
Nature Communications, January 2017
|
DOI | 10.1038/ncomms14237 |
Pubmed ID | |
Authors |
Lavinia Palamiuc, Tallie Noble, Emily Witham, Harkaranveer Ratanpal, Megan Vaughan, Supriya Srinivasan |
Abstract |
Serotonin, a central neuromodulator with ancient ties to feeding and metabolism, is a major driver of body fat loss. However, mechanisms by which central serotonin action leads to fat loss remain unknown. Here, we report that the FLP-7 neuropeptide and its cognate receptor, NPR-22, function as the ligand-receptor pair that defines the neuroendocrine axis of serotonergic body fat loss in Caenorhabditis elegans. FLP-7 is secreted as a neuroendocrine peptide in proportion to fluctuations in neural serotonin circuit functions, and its release is regulated from secretory neurons via the nutrient sensor AMPK. FLP-7 acts via the NPR-22/Tachykinin2 receptor in the intestine and drives fat loss via the adipocyte triglyceride lipase ATGL-1. Importantly, this ligand-receptor pair does not alter other serotonin-dependent behaviours including food intake. For global modulators such as serotonin, the use of distinct neuroendocrine peptides for each output may be one means to achieve phenotypic selectivity. |
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Demographic breakdown
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Mendeley readers
Geographical breakdown
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Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 11 | 12% |
Student > Bachelor | 9 | 10% |
Student > Doctoral Student | 5 | 6% |
Other | 15 | 17% |
Unknown | 18 | 20% |
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Biochemistry, Genetics and Molecular Biology | 14 | 16% |
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Psychology | 3 | 3% |
Other | 14 | 16% |
Unknown | 24 | 27% |