Giuranna, J.* ; Zheng, Y.* ; Brandt, M.* ; Jall, S. ; Mukherjee, A.* ; Shankhwar, S.* ; Renner, S.* ; Kurapati, N.K.* ; May, C.* ; Peters, T.* ; Herpertz-Dahlmann, B.* ; Seitz, J.* ; de Zwaan, M.* ; Herzog, W.* ; Ehrlich, S.* ; Zipfel, S.* ; Giel, K.* ; Egberts, K.* ; Burghardt, R.* ; Foecker, M.* ; Marcus, K.* ; Keyvani, K.* ; Müller, T.D. ; Schmitz, F.* ; Rajcsanyi, L.S.* ; Hinney, A.*
Genetic and functional analyses of CTBP2 in anorexia nervosa and body weight regulation.
Mol. Psychiatry, DOI: 10.1038/s41380-024-02791-3 (2024)
The C-terminal binding protein 2 (CTBP2) gene (translational isoforms: CTBP2-L/S, RIBEYE) had been identified by a cross-trait analysis of genome-wide association studies for anorexia nervosa (AN) and body mass index (BMI). Here, we did a mutation analysis in CTBP2 by performing polymerase chain reactions with subsequent Sanger-sequencing to identify variants relevant for AN and body weight regulation and ensued functional studies. Analysis of the coding regions of CTBP2 in 462 female patients with AN (acute or recovered), 490 children and adolescents with severe obesity, 445 healthy-lean adult individuals and 168 healthy adult individuals with normal body weight detected 24 variants located in the specific exon of RIBEYE. In the initial analysis, three of these were rare non-synonymous variants (NSVs) detected heterozygously in patients with AN (p.Arg72Trp - rs146900874; p.Val289Met -rs375685611 and p.Gly362Arg - rs202010294). Four NSVs and one heterozygous frameshift variant were exclusively detected in children and adolescents with severe obesity (p.Pro53Ser - rs150867595; p.Gln175ArgfsTer45 - rs141864737; p.Leu310Val - rs769811964; p.Pro397Ala - rs76134089 and p.Pro402Ser - rs113477585). Ribeye mRNA was detected in mouse hypothalamus. No effect of fasting or overfeeding on murine hypothalamic Ribeye expression was determined. Yet, increased Ribeye expression was detected in hypothalami of leptin-treated Lepob/ob mice. This increase was not related to reduced food intake and leptin-induced weight loss. We detected rare and frequent variants in the RIBEYE specific exon in both patients with AN and in children and adolescents with severe obesity. Our data suggest RIBEYE as a relevant gene for weight regulation.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Genome-wide Association; Messenger-rna; Neurotrophic Factor; Food-intake; Stability Changes; Synaptic Ribbons; Arcuate Nucleus; Orexin Neurons; Energy-balance; Leptin Levels
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2024
Prepublished im Jahr
0
HGF-Berichtsjahr
2024
ISSN (print) / ISBN
1359-4184
e-ISSN
1476-5578
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band:
Heft:
Seiten:
Artikelnummer:
Supplement:
Reihe
Verlag
Nature Publishing Group
Verlagsort
Campus, 4 Crinan St, London, N1 9xw, England
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-502200-001
G-501900-221
Förderungen
Projekt DEAL
Open Access Publication Fund of the University of Duisburg-Essen
PURE, a project of North-Rhine Westphalia, a federal German state
Medical Faculty at RUB (FoRUM)
Medical Faculty of the University of Duisburg-Essen
Landesprogramm fur Geschlechtergerechte Hochschulen- Programmstrang Forderung von Denominationen in der Genderforschung
Dr. Rolf M. Schwiete foundation
German Center for Diabetes Research (DZD e.V.)
Copyright
Erfassungsdatum
2024-12-06