PSMD11 loss-of-function variants correlate with a neurobehavioral phenotype, obesity, and increased interferon response

Primary proteasomopathies have recently emerged as a new class of rare early-onset neurodevelopmental disorders (NDDs) caused by pathogenic variants in the PSMB1, PSMC1, PSMC3, or PSMD12 proteasome genes. Proteasomes are large multi-subunit protein complexes that maintain cellular protein homeostasi...

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Veröffentlicht in:American journal of human genetics Jg. 111; H. 7; S. 1352
Hauptverfasser: Deb, Wallid, Rosenfelt, Cory, Vignard, Virginie, Papendorf, Jonas Johannes, Möller, Sophie, Wendlandt, Martin, Studencka-Turski, Maja, Cogné, Benjamin, Besnard, Thomas, Ruffier, Léa, Toutain, Bérénice, Poirier, Léa, Cuinat, Silvestre, Kritzer, Amy, Crunk, Amy, diMonda, Janette, Vengoechea, Jaime, Mercier, Sandra, Kleinendorst, Lotte, van Haelst, Mieke M, Zuurbier, Linda, Sulem, Telma, Katrínardóttir, Hildigunnur, Friðriksdóttir, Rún, Sulem, Patrick, Stefansson, Kari, Jonsdottir, Berglind, Zeidler, Shimriet, Sinnema, Margje, Stegmann, Alexander P A, Naveh, Natali, Skraban, Cara M, Gray, Christopher, Murrell, Jill R, Isikay, Sedat, Pehlivan, Davut, Calame, Daniel G, Posey, Jennifer E, Nizon, Mathilde, McWalter, Kirsty, Lupski, James R, Isidor, Bertrand, Bolduc, François V, Bézieau, Stéphane, Krüger, Elke, Küry, Sébastien, Ebstein, Frédéric
Format: Journal Article
Sprache:Englisch
Veröffentlicht: United States 11.07.2024
Schlagworte:
Adolescent
Animals
Child
Child, Preschool
Drosophila melanogaster - genetics
Female
Humans
Intellectual Disability - genetics
Interferons - genetics
Interferons - metabolism
Loss of Function Mutation
Male
Neurodevelopmental Disorders - genetics
Obesity - genetics
Phenotype
Proteasome Endopeptidase Complex - genetics
Proteasome Endopeptidase Complex - metabolism
ISSN:1537-6605, 1537-6605
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Zusammenfassung:Primary proteasomopathies have recently emerged as a new class of rare early-onset neurodevelopmental disorders (NDDs) caused by pathogenic variants in the PSMB1, PSMC1, PSMC3, or PSMD12 proteasome genes. Proteasomes are large multi-subunit protein complexes that maintain cellular protein homeostasis by clearing ubiquitin-tagged damaged, misfolded, or unnecessary proteins. In this study, we have identified PSMD11 as an additional proteasome gene in which pathogenic variation is associated with an NDD-causing proteasomopathy. PSMD11 loss-of-function variants caused early-onset syndromic intellectual disability and neurodevelopmental delay with recurrent obesity in 10 unrelated children. Our findings demonstrate that the cognitive impairment observed in these individuals could be recapitulated in Drosophila melanogaster with depletion of the PMSD11 ortholog Rpn6, which compromised reversal learning. Our investigations in subject samples further revealed that PSMD11 loss of function resulted in impaired 26S proteasome assembly and the acquisition of a persistent type I interferon (IFN) gene signature, mediated by the integrated stress response (ISR) protein kinase R (PKR). In summary, these data identify PSMD11 as an additional member of the growing family of genes associated with neurodevelopmental proteasomopathies and provide insights into proteasomal biology in human health.
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content type line 23
ISSN:1537-6605
1537-6605
DOI:10.1016/j.ajhg.2024.05.016