| Autor: |
Lauretta El Hayek, Islam Oguz Tuncay, Nadine Nijem, Jamie Russell, Sara Ludwig, Kiran Kaur, Xiaohong Li, Priscilla Anderton, Miao Tang, Amanda Gerard, Anja Heinze, Pia Zacher, Hessa S Alsaif, Aboulfazl Rad, Kazem Hassanpour, Mohammad Reza Abbaszadegan, Camerun Washington, Barbara R DuPont, Raymond J Louie, CAUSES Study, Madeline Couse, Maha Faden, R Curtis Rogers, Rami Abou Jamra, Ellen R Elias, Reza Maroofian, Henry Houlden, Anna Lehman, Bruce Beutler, Maria H Chahrour |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
eLife, Vol 9 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2050-084X |
| DOI: |
10.7554/eLife.56883 |
| Popis: |
Autism spectrum disorder (ASD) is a constellation of neurodevelopmental disorders with high phenotypic and genetic heterogeneity, complicating the discovery of causative genes. Through a forward genetics approach selecting for defective vocalization in mice, we identified Kdm5a as a candidate ASD gene. To validate our discovery, we generated a Kdm5a knockout mouse model (Kdm5a-/-) and confirmed that inactivating Kdm5a disrupts vocalization. In addition, Kdm5a-/- mice displayed repetitive behaviors, sociability deficits, cognitive dysfunction, and abnormal dendritic morphogenesis. Loss of KDM5A also resulted in dysregulation of the hippocampal transcriptome. To determine if KDM5A mutations cause ASD in humans, we screened whole exome sequencing and microarray data from a clinical cohort. We identified pathogenic KDM5A variants in nine patients with ASD and lack of speech. Our findings illustrate the power and efficacy of forward genetics in identifying ASD genes and highlight the importance of KDM5A in normal brain development and function. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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