Das, A.* ; Mund, C.* ; Hagag, E.* ; Garcia-Martin, R.* ; Karadima, E.* ; Witt, A.* ; Peitzsch, M.* ; Deussen, A.* ; Chavakis, T. ; Noll, T.* ; Alexaki, V.I.*
Adenylate cyclase 10 promotes brown adipose tissue thermogenesis.
iScience 28:111833 (2025)
Brown adipose tissue (BAT) thermogenesis dissipates energy through heat production and thereby it opposes metabolic disease. It is mediated by mitochondrial membrane uncoupling, yet the mechanisms sustaining the mitochondrial membrane potential (ΔΨm) in brown adipocytes are poorly understood. Here we show that isocitrate dehydrogenase (IDH) activity and the expression of the soluble adenylate cyclase 10 (ADCY10), a CO2/bicarbonate sensor residing in mitochondria, are upregulated in BAT of cold-exposed mice. IDH inhibition or ADCY10 deficiency reduces cold resistance of mice. Mechanistically, IDH increases the ΔΨm in brown adipocytes via ADCY10. ADCY10 sustains complex I activity and the ΔΨm via exchange protein activated by cAMP1 (EPAC1). However, neither IDH nor ADCY10 inhibition affect uncoupling protein 1 (UCP1) expression. Hence, we suggest that ADCY10, acting as a CO2/bicarbonate sensor, mediates the effect of IDH on complex I activity through cAMP-EPAC1 signaling, thereby maintaining the ΔΨm and enabling thermogenesis in brown adipocytes.
Impact Factor
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Times Cited
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Cell Biology ; Molecular Biology ; Physiology; Obesity
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2025
Prepublished im Jahr
0
HGF-Berichtsjahr
2025
ISSN (print) / ISBN
2589-0042
e-ISSN
2589-0042
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 28,
Heft: 2,
Seiten: ,
Artikelnummer: 111833
Supplement: ,
Reihe
Verlag
Elsevier
Verlagsort
Amsterdam ; Bosten ; London ; New York ; Oxford ; Paris ; Philadelphia ; San Diego ; St. Louis
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
Institut(e)
Institute of Pancreatic Islet Research (IPI)
POF Topic(s)
90000 - German Center for Diabetes Research
Forschungsfeld(er)
Helmholtz Diabetes Center
PSP-Element(e)
G-502600-008
Förderungen
Saxon State Ministry of Science, Culture and Tourism-SMWK (Unterstutzung profilbestimmender Struktureinheiten der TU Dresden)
Deutsche Forschungsgemeinschaft
Copyright
Erfassungsdatum
2025-04-01