Control a feeding Piezo-mediated gut mechanosensation in Drosophila

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Across animal species, meals are terminated after ingestion of large food volumes, yet underlying mechanosensory receptors have so far remained elusive. Here, we identify an essential role for Drosophila Piezo in volume-based control of meal size. We discover a rare population of fly neurons that express Piezo, innervate the anterior gut and crop (a food reservoir organ), and respond to tissue distension in a Piezo-dependent manner. Activating Piezo neurons decreases appetite, while Piezo knockout and Piezo neuron silencing cause gut bloating and increase both food consumption and body weight. These studies reveal that disrupting gut distension receptors changes feeding patterns and identify a key role for Drosophila Piezo in internal organ mechanosensation.
Publisher
ELIFE SCIENCES PUBLICATIONS LTD
Issue Date
2021-02
Language
English
Article Type
Article
Citation

ELIFE, v.10

ISSN
2050-084X
DOI
10.7554/eLife.63049
URI
http://hdl.handle.net/10203/282183
Appears in Collection
BS-Journal Papers(저널논문)
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