The DOI matches its Crossref record; 47 of the 48 references it cites were found in a registry or an index.
Sweet taste signaling functions as a hypothalamic glucose sensor
Open accessAbstract
Brain glucosensing is essential for normal body glucose homeostasis and neuronal function. However, the exact signaling mechanisms involved in the neuronal sensing of extracellular glucose levels remain poorly understood. Of particular interest is the identification of candidate membrane molecular sensors that would allow neurons to change firing rates independently of intracellular glucose metabolism. Here we describe for the first time the expression of the taste receptor genes Tas1r1, Tas1r2 and Tas1r3, and their associated G-protein genes, in the mammalian brain. Neuronal expression of taste genes was detected in different nutrient-sensing forebrain regions, including the paraventricular and arcuate nuclei of the hypothalamus, the CA fields and dentate gyrus of the hippocampus, the habenula, and cortex. Expression was also observed in the intra-ventricular epithelial cells of the choroid plexus. These same regions were found to express the corresponding gene products that form the heterodimeric T1R2/T1R3 and T1R1/T1R3 sweet and l-amino acid taste G-protein coupled receptors, respectively, along with the taste G-protein alpha-gustducin. Moreover, in vivo studies in mice demonstrated that the hypothalamic expression of taste-related genes is regulated by the nutritional state of the animal, with food deprivation significantly increasing expression levels of Tas1r1 and Tas1r2 in hypothalamus, but not in cortex. Furthermore, exposing mouse hypothalamic cells to a low-glucose medium, while maintaining normal l-amino acid concentrations, specifically resulted in higher expression levels of the sweet-associated gene Tas1r2. This latter effect was reversed by adding the non-metabolizable artificial sweetener sucralose to the low-glucose medium, indicating that taste-like signaling in hypothalamic neurons does not require intracellular glucose oxidation. Taken together, our findings suggest that the heterodimeric G-protein coupled sweet receptor T1R2/T1R3 is a candidate membrane-bound brain glucosensor.
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Analysis of Relative Gene Expression Data Using Real-Time Quantitative PCR and the 2−ΔΔCT Method
Livak, K. J., & Schmittgen, T. D. (2001) · Methods · doi:10.1006/meth.2001.1262 · Cited by 180,860
NeuN, a neuronal specific nuclear protein in vertebratesxs
Mullen, R. J., Buck, C. R., & Smith, A. M. (1992) · Development · doi:10.1242/dev.116.1.201 · Cited by 2,351
Mammalian sweet taste receptors
Nelson, G., Hoon, M. A., Chandrashekar, J., Zhang, Y., Ryba, N. J. P., & Zuker, C. S. (2001) · Cell · doi:10.1016/s0092-8674(01)00451-2 · Cited by 1,702
Nelson, G., Chandrashekar, J. V., Hoon, M. A., Feng, L., Zhao, G., Ryba, N. J. P., & Zuker, C. S. (2002) · Nature · doi:10.1038/nature726 · Cited by 1,523
The Receptors for Mammalian Sweet and Umami Taste
Zhao, G. Q., Zhang, Y., Hoon, M. A., Chandrashekar, J. V., Erlenbach, I., Ryba, N. J. P., & Zuker, C. S. (2003) · Cell · doi:10.1016/s0092-8674(03)00844-4 · Cited by 1,343
Coding of Sweet, Bitter, and Umami Tastes
Zhang, Y., Hoon, M. A., Chandrashekar, J., Mueller, K. L., Cook, B., Wu, D., Zuker, C. S., & Ryba, N. J. P. (2003) · Cell · doi:10.1016/s0092-8674(03)00071-0 · Cited by 1,312
Elmquist, J. K., Elias, C. F., & Saper, C. B. (1999) · Neuron · doi:10.1016/s0896-6273(00)81084-3 · Cited by 1,160
T1R3 and gustducin in gut sense sugars to regulate expression of Na + -glucose cotransporter 1
Margolskee, R. F., Dyer, J., Kokrashvili, Z., Salmon, K. S. H., Ilegems, E., Daly, K., Maillet, E. L., Ninomiya, Y., Mosinger, B., & Shirazi-Beechey, S. P. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0706678104 · Cited by 882
The cells and logic for mammalian sour taste detection
Huang, A. L., Chen, X., Hoon, M. A., Chandrashekar, J., Guo, W., Tränkner, D., Ryba, N. J. P., & Zuker, C. S. (2006) · Nature · doi:10.1038/nature05084 · Cited by 840
A Lesson in Metabolic Regulation Inspired by the Glucokinase Glucose Sensor Paradigm
Matschinsky, F. (1996) · Diabetes · doi:10.2337/diab.45.2.223 · Cited by 721
Research works printed but not linked: 1
- Porterfield S. P. White B. A. (2007). Endocrine Physiology, 3rd Edn. Philadelphia, PA, Mosby Elsevier
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Blouet, C., & Schwartz, G. J. (2009) · Behavioural Brain Research · doi:10.1016/j.bbr.2009.12.024 · Cited by 343
Glucosensing and glucose homeostasis: From fish to mammals
Polakof, S., Mommsen, T. P., & Soengas, J. L. (2011) · Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology · doi:10.1016/j.cbpb.2011.07.006 · Cited by 316
Therapeutic potential of ectopic olfactory and taste receptors
Lee, S., Depoortere, I., & Hatt, H. H. (2018) · Nature Reviews Drug Discovery · doi:10.1038/s41573-018-0002-3 · Cited by 282
The Versatile Tanycyte: A Hypothalamic Integrator of Reproduction and Energy Metabolism
Prévot, V., Dehouck, B., Sharif, A., Ciofi, P., Giacobini, P., & Clasadonte, J. (2018) · Endocrine Reviews · doi:10.1210/er.2017-00235 · Cited by 299
Metadata
- Authors
- Ren, X.
- Affiliations
- Yale University (US)
- Corresponding author
- Ren, Xueying
- ORCID
- Ren, Xueying
- Venue
- Frontiers in Integrative Neuroscience
- Publisher
- Frontiers Media SA
- Published
- 2009
- Volume
- 3
- Pages
- 12-12
- ISSN
- 1662-5145 (ISSN-L)
- PMC
- PMC2706652
- OpenAlex
- W2018768372
- Cited by
- 267
- References
- 48
- Citations by year
- 2026: 6 · 2025: 12 · 2024: 14 · 2023: 13 · 2022: 16 · 2021: 16 · 2020: 11 · 2019: 11 · 2018: 20 · 2017: 25 · 2016: 19 · 2015: 17 · 2014: 19 · 2013: 15 · 2012: 15
- FWCI
- 17.10
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by
- Locations
- Frontiers in Integrative Neuroscience (publishedVersion, cc-by)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- MPG.PuRe (Max Planck Society) (submittedVersion)
- Topics
- Health Sciences › Nursing › Nutrition and Dietetics › Biochemical Analysis and Sensing Techniques
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
- Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
- Keywords
- hypothalamus, sweet taste receptor, T1R2/T1R3, TAS1R2, TAS1R1, TAS1R3, gustducin, glucose homeostasis, food deprivation, sucralose
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