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Kempf, E.* ; Landgraf, K.* ; Stein, R. ; Hanschkow, M.* ; Hilbert, A.* ; Abou Jamra, R.* ; Boczki, P.* ; Herberth, G.* ; Kühnapfel, A.* ; Tseng, Y.H.* ; Stäubert, C.* ; Schöneberg, T.* ; Kühnen, P.* ; Rayner, N.W. ; Zeggini, E. ; Kiess, W.* ; Blüher, M. ; Körner, A.

Aberrant expression of agouti signaling protein (ASIP) as a cause of monogenic severe childhood obesity.

Nat. Metab. 4, 1697-1712 (2022)
Forschungsdaten DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
Here we report a heterozygous tandem duplication at the ASIP (agouti signaling protein) gene locus causing ubiquitous, ectopic ASIP expression in a female patient with extreme childhood obesity. The mutation places ASIP under control of the ubiquitously active itchy E3 ubiquitin protein ligase promoter, driving the generation of ASIP in patient-derived native and induced pluripotent stem cells for all germ layers and hypothalamic-like neurons. The patient’s phenotype of early-onset obesity, overgrowth, red hair and hyperinsulinemia is concordant with that of mutant mice ubiquitously expressing the homolog nonagouti. ASIP represses melanocyte-stimulating hormone-mediated activation as a melanocortin receptor antagonist, which might affect eating behavior, energy expenditure, adipocyte differentiation and pigmentation, as observed in the index patient. As the type of mutation escapes standard genetic screening algorithms, we rescreened the Leipzig Childhood Obesity cohort of 1,745 patients and identified four additional patients with the identical mutation, ectopic ASIP expression and a similar phenotype. Taken together, our data indicate that ubiquitous ectopic ASIP expression is likely a monogenic cause of human obesity.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Body-mass Index; Gene; Association; Mutations; Receptor; Stringtie; Variants; Agonist; Genome; Mouse
ISSN (print) / ISBN 2522-5812
e-ISSN 2522-5812
Zeitschrift Nature metabolism
Quellenangaben Band: 4, Heft: 12, Seiten: 1697-1712 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort London
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Helmholtz Institute for Metabolism, Obesity and Vascular Research (HI-MAG)
Institute of Translational Genomics (ITG)
Förderungen Helmholtz Institute for Metabolic, Obesity and Vascular Research of the Helmholtz Zentrum Munchen at the University of Leipzig
joint Clinician Scientist Program of the Medical Faculty
German Diabetes Association
German Research Foundation