中国神经再生研究(英文版) ›› 2023, Vol. 18 ›› Issue (11): 2397-2398.doi: 10.4103/1673-5374.371359

• 观点:退行性病与再生 • 上一篇    下一篇

由内含子保留引起的 Tau 截断在阿尔茨海默病皮质中富集并表现出改变的生化特性

  

  • 出版日期:2023-11-15 发布日期:2023-05-04

Enrichment of novel Tau isoform with altered biochemical properties in Alzheimer’s disease

Chin-Tong Ong*   

  1. Temasek Life Sciences Laboratory, and Department of Biological Sciences, National University of Singapore, Singapore
  • Online:2023-11-15 Published:2023-05-04
  • Contact: Chin-Tong Ong, PhD, chintong@tll.org.sg.
  • Supported by:
    This work was supported by core funding provided by Temasek Life Sciences Laboratory (to CTO).

摘要: https://orcid.org/0000-0002-5450-4760 (Chin-Tong Ong) 

Abstract: Aberrant splicing in sporadic Alzheimer’s disease: Alzheimer’s disease (AD) is a progressive neurodegenerative disorder characterized by the presence of extracellular amyloid-β plaques and Tau-containing intracellular neurofibrillary tangles (Knopman et al., 2021). Cognitive decline in AD due to neuronal and synaptic loss is caused by the complex interplay between pathological amyloid-β and Tau species with the impaired innate clearance pathways. There are two types of AD based on disease aetiology (Knopman et al., 2021). In early-onset familial AD, patients are inherited with autosomal dominant mutations in either amyloid precursor protein (APP) or presenilin-1/2 (PSEN1/2) genes which lead to elevated production of amyloid-β (Lanoiselee et al., 2017). On the other hand, late-onset sporadic AD is characterized by high pathological heterogeneity with aging and genetic variations as the major disease risk factors (Knopman et al., 2021). Recent high-throughput results from longitudinal, epidemiologic studies such as the Religious Orders Study and the Memory and Aging Project showed that aberrant mRNA splicing may participate in the progression of sporadic AD (Raj et al., 2018). Increased intron retention, an alternative splicing event where introns are not removed from mature mRNA transcripts, has also been linked to aging brains and AD pathogenesis (Adusumalli et al., 2019; Garcia-Escudero et al., 2021; Ngian et al., 2022).