Yu, Q.* ; Gamayun, I.* ; Wartenberg, P.* ; Zhang, Q. ; Qiao, S.* ; Kusumakshi, S.* ; Candlish, S.* ; Götz, V.* ; Wen, S.* ; Das, D.* ; Wyatt, A.* ; Wahl, V.* ; Ectors, F.* ; Kattler, K.* ; Yildiz, D.* ; Prévot, V.* ; Schwaninger, M.* ; Ternier, G.* ; Giacobini, P.* ; Ciofi, P.* ; Müller, T.D. ; Boehm, U.*
Bitter taste cells in the ventricular walls of the murine brain regulate glucose homeostasis.
Nat. Commun. 14:1588 (2023)
The median eminence (ME) is a circumventricular organ at the base of the brain that controls body homeostasis. Tanycytes are its specialized glial cells that constitute the ventricular walls and regulate different physiological states, however individual signaling pathways in these cells are incompletely understood. Here, we identify a functional tanycyte subpopulation that expresses key taste transduction genes including bitter taste receptors, the G protein gustducin and the gustatory ion channel TRPM5 (M5). M5 tanycytes have access to blood-borne cues via processes extended towards diaphragmed endothelial fenestrations in the ME and mediate bidirectional communication between the cerebrospinal fluid and blood. This subpopulation responds to metabolic signals including leptin and other hormonal cues and is transcriptionally reprogrammed upon fasting. Acute M5 tanycyte activation induces insulin secretion and acute diphtheria toxin-mediated M5 tanycyte depletion results in impaired glucose tolerance in diet-induced obese mice. We provide a cellular and molecular framework that defines how bitter taste cells in the ME integrate chemosensation with metabolism.
Impact Factor
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Times Cited
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Arcuate Nucleus; Messenger-rna; Food-intake; Tanycytes; Ablation; Protein; Mice; Expression; Plasticity; Receptors
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2023
Prepublished im Jahr
0
HGF-Berichtsjahr
2023
ISSN (print) / ISBN
2041-1723
e-ISSN
2041-1723
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 14,
Heft: 1,
Seiten: ,
Artikelnummer: 1588
Supplement: ,
Reihe
Verlag
Nature Publishing Group
Verlagsort
London
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30201 - Metabolic Health
90000 - German Center for Diabetes Research
Forschungsfeld(er)
Helmholtz Diabetes Center
PSP-Element(e)
G-502200-006
G-501900-221
Förderungen
European Research Council (ERC)
DFG and Saarland University
Deutsche Forschungsgemeinschaft (DFG)
Copyright
Erfassungsdatum
2023-10-06