A comprehensive screening of copy number variability in dementia with Lewy bodies - Sorbonne Université Accéder directement au contenu
Article Dans Une Revue Neurobiology of Aging Année : 2019

A comprehensive screening of copy number variability in dementia with Lewy bodies

Dena Hernandez
  • Fonction : Auteur
Elisabet Londos
  • Fonction : Auteur
Anne Braae
Vivianna van Deerlin
Geidy Serrano
  • Fonction : Auteur
Thomas Beach
  • Fonction : Auteur
Isabel Santana
  • Fonction : Auteur
Pau Pastor
Valentina Escott-Price
Dennis Dickson
Andrew Singleton
  • Fonction : Auteur
Rita Guerreiro

Résumé

The role of genetic variability in dementia with Lewy bodies (DLB) is now indisputable; however, data regarding copy number variation (CNV) in this disease has been lacking. Here, we used whole-genome genotyping of 1454 DLB cases and 1525 controls to assess copy number variability. We used 2 algorithms to confidently detect CNVs, performed a case-control association analysis, screened for candidate CNVs previously associated with DLB-related diseases, and performed a candidate gene approach to fully explore the data. We identified 5 CNV regions with a significant genome-wide association to DLB; 2 of these were only present in cases and absent from publicly available databases: one of the regions overlapped LAPTM4B, a known lysosomal protein, whereas the other overlapped the NME1 locus and SPAG9. We also identified DLB cases presenting rare CNVs in genes previously associated with DLB or related neurodegenerative diseases, such as SNCA, APP, and MAPT. To our knowledge, this is the first study reporting genome-wide CNVs in a large DLB cohort. These results provide preliminary evidence for the contribution of CNVs in DLB risk.

Dates et versions

hal-04556394 , version 1 (23-04-2024)

Identifiants

Citer

Celia Kun-Rodrigues, Tatiana Orme, Susana Carmona, Dena Hernandez, Owen Ross, et al.. A comprehensive screening of copy number variability in dementia with Lewy bodies. Neurobiology of Aging, 2019, 75, pp.223.e1-223.e10. ⟨10.1016/j.neurobiolaging.2018.10.019⟩. ⟨hal-04556394⟩
5 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More