Cited by 254RNA Research and SplicingAlzheimer's disease research and treatmentsAmyotrophic Lateral Sclerosis Research

Analysis of alternative splicing associated with aging and neurodegeneration in the human brain

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Tollervey, James R., Wang, Zhen, Hortobágyi, Tibor, Witten, Joshua T., Zarnack, Kathi, Kayikci, Melis, Clark, Tyson A., Schweitzer, Anthony C. +6 more·2011·Genome Research

Abstract

Age is the most important risk factor for neurodegeneration; however, the effects of aging and neurodegeneration on gene expression in the human brain have most often been studied separately. Here, we analyzed changes in transcript levels and alternative splicing in the temporal cortex of individuals of different ages who were cognitively normal, affected by frontotemporal lobar degeneration (FTLD), or affected by Alzheimer's disease (AD). We identified age-related splicing changes in cognitively normal individuals and found that these were present also in 95% of individuals with FTLD or AD, independent of their age. These changes were consistent with increased polypyrimidine tract binding protein (PTB)–dependent splicing activity. We also identified disease-specific splicing changes that were present in individuals with FTLD or AD, but not in cognitively normal individuals. These changes were consistent with the decreased neuro-oncological ventral antigen (NOVA)–dependent splicing regulation, and the decreased nuclear abundance of NOVA proteins. As expected, a dramatic down-regulation of neuronal genes was associated with disease, whereas a modest down-regulation of glial and neuronal genes was associated with aging. Whereas our data indicated that the age-related splicing changes are regulated independently of transcript-level changes, these two regulatory mechanisms affected expression of genes with similar functions, including metabolism and DNA repair. In conclusion, the alternative splicing changes identified in this study provide a new link between aging and neurodegeneration.

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Authors
Tollervey, J. R., Wang, Z., Hortobágyi, T., Witten, J. T., Zarnack, K., Kayikci, M., Clark, T. A., Schweitzer, A. C., Rot, G., Curk, T., Zupan, B., Rogelj, B., Shaw, C. E., & Ule, J.
Affiliations
  • MRC Laboratory of Molecular Biology (GB)
  • King's College London (GB)
  • European Bioinformatics Institute (GB)
  • Affymetrix (United States) (US)
  • University of Ljubljana (SI)
Venue
Genome Research
Published
2011-08-16
Volume
21
Issue
10
Pages
1572-1582
ISSN
1088-9051 (ISSN-L)
OpenAlex
W2065356080
Cited by
252
References
66
Citations by year
2026: 13 · 2025: 20 · 2024: 15 · 2023: 23 · 2022: 17 · 2021: 20 · 2020: 17 · 2019: 16 · 2018: 13 · 2017: 19 · 2016: 16 · 2015: 18 · 2014: 13 · 2013: 14 · 2012: 17
Type
posted content
Language
en
Open access
Locations
  • Genome Research (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Repository of the University of Ljubljana (University of Ljubljana) (publishedVersion, other-oa)
  • University of Debrecen Electronic Archive (University of Debrecen) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Wellcome Trust (089701, 089701/Z/09/Z)
  • Javna Agencija za Raziskovalno Dejavnost RS (J2-2197, L2-1112, P2-0209, Z7-3665)
  • Medical Research Council (MC_G1000733)
  • FP7 Ideas: European Research Council (206726)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
Keywords
alternative splicing, brain aging, neurodegeneration, frontotemporal lobar degeneration, Alzheimer's disease, temporal cortex, polypyrimidine tract-binding protein, nova, splicing regulation, transcriptome, neuronal gene expression, glial gene expression, DNA repair, metabolism
MeSH terms
Neuro-Oncological Ventral Antigen, Adolescent, Adult, Age Factors, Aged, Aged, 80 and over, Aging, Alzheimer Disease, Antigens, Neoplasm, Exons, Humans, Ion Channels, Middle Aged, Nerve Tissue Proteins, Synaptic Transmission, Temporal Lobe, Transcription, Genetic, Down-Regulation, Cell Adhesion Molecules, RNA-Binding Proteins, Alternative Splicing, Protein Isoforms, Oligonucleotide Array Sequence Analysis, Gene Expression Profiling, Principal Component Analysis, Polypyrimidine Tract-Binding Protein, Young Adult, Frontotemporal Lobar Degeneration

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