Cited by 106Alzheimer's disease research and treatmentsTelomeres, Telomerase, and SenescenceNeurogenesis and neuroplasticity mechanisms

Telomere shortening reduces Alzheimer’s disease amyloid pathology in mice

Rolyan, Harshvardhan, Scheffold, Annika, Heinrich, Annette, Begus-Nahrmann, Yvonne, Langkopf, Britta Heike, Hölter, Sabine M., Vogt-Weisenhorn, Daniela M., Liss, Birgit +5 more·2011·Brain

Abstract

Alzheimer's disease is a neurodegenerative disorder of the elderly and advancing age is the major risk factor for Alzheimer's disease development. Telomere shortening represents one of the molecular causes of ageing that limits the proliferative capacity of cells, including neural stem cells. Studies on telomere lengths in patients with Alzheimer's disease have revealed contrary results and the functional role of telomere shortening on brain ageing and Alzheimer's disease is not known. Here, we have investigated the effects of telomere shortening on adult neurogenesis and Alzheimer's disease progression in mice. The study shows that aged telomerase knockout mice with short telomeres (G3Terc-/-) exhibit reduced dentate gyrus neurogenesis and loss of neurons in hippocampus and frontal cortex, associated with short-term memory deficit in comparison to mice with long telomere reserves (Terc+/+). In contrast, telomere shortening improved the spatial learning ability of ageing APP23 transgenic mice, a mouse model for Alzheimer's disease. Telomere shortening was also associated with an activation of microglia in ageing amyloid-free brain. However, in APP23 transgenic mice, telomere shortening reduced both amyloid plaque pathology and reactive microgliosis. Together, these results provide the first experimental evidence that telomere shortening, despite impairing adult neurogenesis and maintenance of post-mitotic neurons, can slow down the progression of amyloid plaque pathology in Alzheimer's disease, possibly involving telomere-dependent effects on microglia activation.

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Crossref · 10.1093/brain/awr133

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Authors
Rolyan, H., Scheffold, A., Heinrich, A., Begus-Nahrmann, Y., Langkopf, B. H., Hölter, S. M., Vogt-Weisenhorn, D. M., Liss, B., Wurst, W., Lie, D. C., Thal, D. R., Biber, K., & Rudolph, K. L.
Affiliations
  • Universität Ulm (DE)
  • University of Freiburg (DE)
  • Helmholtz Munich (DE)
  • University Medical Center Groningen (NL)
Venue
Brain
Published
2011-06-14
Volume
134
Issue
7
Pages
2044-2056
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2157771740
Cited by
106
References
79
Citations by year
2026: 2 · 2025: 8 · 2024: 9 · 2023: 8 · 2022: 10 · 2021: 11 · 2020: 6 · 2019: 6 · 2018: 4 · 2017: 8 · 2016: 4 · 2015: 9 · 2014: 5 · 2013: 3 · 2012: 10
FWCI
4.58
Type
journal article
Language
en
Open access
closed
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (publishedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
telomere shortening, Alzheimer's disease, amyloid plaques, adult neurogenesis, dentate gyrus, APP23 transgenic mice, microglial activation, reactive microgliosis, spatial learning, memory impairment, brain aging, hippocampus, frontal cortex, neuronal loss
MeSH terms
Doublecortin Domain Proteins, Age Factors, Alzheimer Disease, Animals, Bromodeoxyuridine, Calcium-Binding Proteins, Cell Cycle, Cerebral Cortex, Cognition Disorders, Disease Models, Animal, Hippocampus, Mice, Inbred C57BL, Mice, Transgenic, Microfilament Proteins, Microtubule-Associated Proteins, Neurons, Neuropeptides, Synapses, Amyloid beta-Peptides, Aspartic Acid Endopeptidases, Amyloid beta-Protein Precursor, Telomere, Microglia, Maze Learning, Telomerase, Microscopy, Electron, Transmission, Mice, Presenilin-1, Amyloid Precursor Protein Secretases, Neurogenesis, Plaque, Amyloid

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