<i>C. elegans</i> somatostatin/allatostatin C signaling regulates sleep, metabolism, survival, and memory via a sleep-active neuron
coupled and acts cell nonautonomously to activate the sleep-active RIS neuron while acting autonomously in RIS to inhibit calcium activation and the release of the sleep-inducing FLP-11 neuropeptides. During larval arrest, strong NPR-16 expression in RIS causes NLP-99/NPR-16 signaling to inhibit sleep, reducing lipid storage and survival. In well-fed adults, NPR-16 expression is stronger outside of RIS, and NLP-99/NPR-16 signaling is required for RIS activation and sleep while also inhibiting longevity via RIS. Both NLP-99/NPR-16 and RIS/FLP-11 are required for memory consolidation. These results show that NLP-99/NPR-16 regulates physiological processes via control of RIS. A similar somatostatin-mediated regulation of sleep neurons may underlie physiological regulation in other species.
Authors
- Gill Pollmeier
- Majdulin Nabil Istiban (ORCID: https://orcid.org/0000-0003-3522-2327)
- Ellen Geens (ORCID: https://orcid.org/0000-0001-6117-2648)
- Attila Steták (ORCID: https://orcid.org/0000-0002-9178-8141)
- Henrik Bringmann (ORCID: https://orcid.org/0000-0002-7689-8617)
- Isabel Beets (ORCID: https://orcid.org/0000-0002-0968-4360)
- Inka Busack (ORCID: https://orcid.org/0000-0001-8410-0006)
- Lorenzo Rossi (ORCID: https://orcid.org/0000-0001-6051-3260)
- Reshma Dominic Savio (ORCID: https://orcid.org/0009-0006-5787-4317)
- Byoungjun Park (ORCID: https://orcid.org/0009-0000-0017-5300)
- Lama Mohsen
- Sajal Mandal (ORCID: https://orcid.org/0009-0000-7440-636X)
- Laura Uhlig (ORCID: https://orcid.org/0009-0004-2111-7977)
Institutions
- University of Basel (CH)
- University Hospital Carl Gustav Carus (DE)
- Technische Universität Dresden (DE)
- KU Leuven (BE)
Publication Details
- Journal
- Science Advances
- Published
- 2026-04-15
- DOI
- https://doi.org/10.1126/sciadv.adv8387
- Primary Topic
- Genetics, Aging, and Longevity in Model Organisms
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Deutsche Forschungsgemeinschaft
- Fonds Wetenschappelijk Onderzoek
- KU Leuven
- Vlaamse regering
- National Institutes of Health
- European Research Council