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Here, we report the generation and comprehensive characterization of a knockin mouse model for the hotspot p.Arg87Cys variant of the cytoplasmic FMR1-interacting protein 2 (CYFIP2) gene, which was recently identified in individuals diagnosed with West syndrome, a developmental and epileptic encephalopathy. The Cyfip2 mice recapitulated many neurological and neurobehavioral phenotypes of the patients, including spasmlike movements, microcephaly, and impaired social communication. Age-progressive cytoarchitectural disorganization and gliosis were also identified in the hippocampus of Cyfip2 mice. Beyond identifying a decrease in CYFIP2 protein levels in the Cyfip2 brains, we demonstrated that the p.Arg87Cys variant enhances ubiquitination and proteasomal degradation of CYFIP2. ANN NEUROL 2023;93:155-163.
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http://dx.doi.org/10.1002/ana.26535 | DOI Listing |
High calorie-high fat diet (HFD) has been implicated as a pathological modifier of brain diseases including neurodegenerative dementias, but the detailed molecular mechanisms remain largely unknown. Here we report that HFD suppresses PPARγ-mediated transcriptional expression of , a RNA splicing factor implicated in human intellectual disability and Alzheimer's disease. RNAseq-based comprehensive analyses of alternative RNA splicing (AS) in HFD-fed mice for 1 or 6 weeks and in PQBP1-cKO mice reveal their common changes, which weigh on synapse-related genes.
View Article and Find Full Text PDFBiol Res
June 2025
Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, China.
Background: Neurodevelopmental disorders manifest in early childhood and are characterized by cognitive deficits, intellectual disabilities, motor disorders, and social dysfunction. Mutations in gene are associated with syndromic neurodevelopmental disorders in humans, while the detailed pathological mechanism is still unknown.
Methods: CRISPR/Cas9 technology was used to generate a knockout zebrafish model.
Clin Genet
May 2025
Movement Disorders Unit, Pediatric Neurology Department, Institut de Recerca, Hospital Sant Joan de Déu Barcelona, Barcelona, Spain.
CYFIP2, essential for actin cytoskeleton regulation, is implicated in early-onset developmental and epileptic encephalopathy (DEE) with neurodevelopmental impairments and variable movement disorders, including occasional dyskinetic crises. We report a novel CYFIP2 frameshift variant (c.281_282insA/p.
View Article and Find Full Text PDFJ Exp Clin Cancer Res
April 2025
Department of Biomedical Science, CHA University, Seongnam, Republic of Korea.
BMC Musculoskelet Disord
April 2025
Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050051, China.
Background: Osteoarthritis (OA) is a joint disease closely associated with synovial tissue inflammation, with the severity of synovitis impacting disease progression. m7G RNA methylation is critical in RNA processing, metabolism, and function, but its role in OA synovial tissue is not well understood. This study explores the relationship between m7G methylation and immune infiltration in OA.
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