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Increased accumulation of Staufen in nucleus contributes to C9ALS/FTD pathology
- Increased accumulation of Staufen in nucleus contributes to C9ALS/FTD pathology
- Kim, Yoon Ha; Kim, EunSeon; Chung, Chang Geon; Lee, Sung-Bae
- DGIST Authors
- Lee, Sung-Bae
- Issue Date
- 2019 생화학분자생물학회 정기학술대회
- G4C2 repeat expansion mutation of C9orf72 is the most common cause of familial amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). RNA G4C2 repeats produce 5 dipeptide repeat (DPR) proteins via repeat-associated non-ATG translation. Arginine-rich DPR proteins such as polyGly-Arg (GR) and polyPro-Arg (PR) are highly toxic and can perturb the dynamics and functions of various RNA binding proteins (RBPs). Recently, Staufen, a double-stranded RNA binding protein, was identified as one of the top interactors of poly (GR) and poly (PR), but the way in which Staufen mediates toxicity is currently unknown. Here, we show that poly (GR) and poly (PR) cause RNA-dependent nuclear accumulation of Staufen. Taken together, these data suggest that nuclear accumulation of Staufen may contribute to C9ALS/FTD pathogenesis.
- Related Researcher
Lee, Sung Bae
Laboratory of Neurodegenerative Diseases and Aging
Cellular mechanism of neurodegenerative diseases; Neuronal maintenance and remodeling; 퇴행성 뇌질환의 세포기전; 신경계 유지 및 리모델링 연구
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- Department of Brain SciencesLaboratory of Neurodegenerative Diseases and Aging2. Conference Papers
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