Cited by 1,975Alzheimer's disease research and treatmentsNeuropeptides and Animal PhysiologyNeuroinflammation and Neurodegeneration Mechanisms

Neurotrophic and Neurotoxic Effects of Amyloid β Protein: Reversal by Tachykinin Neuropeptides

Yankner, Bruce A., Duffy, Lawrence K., Kirschner, Daniel A.·1990·Science

Abstract

The amyloid β protein is deposited in the brains of patients with Alzheimer's disease but its pathogenic role is unknown. In culture, the amyloid β protein was neurotrophic to undifferentiated hippocampal neurons at low concentrations and neurotoxic to mature neurons at higher concentrations. In differentiated neurons, amyloid β protein caused dendritic and axonal retraction followed by neuronal death. A portion of the amyloid β protein (amino acids 25 to 35) mediated both the trophic and toxic effects and was homologous to the tachykinin neuropeptide family. The effects of the amyloid β protein were mimicked by tachykinin antagonists and completely reversed by specific tachykinin agonists. Thus, the amyloid β protein could function as a neurotrophic factor for differentiating neurons, but at high concentrations in mature neurons, as in Alzheimer's disease, could cause neuronal degeneration.

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Crossref · 10.1126/science.2218531

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Authors
Yankner, B. A., Duffy, L. K., & Kirschner, D. A.
Affiliations
  • Boston Children's Hospital (US)
  • University of Alaska Fairbanks (US)
Venue
Science
Published
1990-10-12
Volume
250
Issue
4978
Pages
279-282
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2059214757
Cited by
1,975
References
3
Citations by year
2026: 9 · 2025: 17 · 2024: 15 · 2023: 22 · 2022: 14 · 2021: 29 · 2020: 19 · 2019: 29 · 2018: 32 · 2017: 27 · 2016: 37 · 2015: 44 · 2014: 46 · 2013: 40 · 2012: 40
FWCI
64.80
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (AG08572, R01AG008572)
  • National Institute of Neurological Disorders and Stroke (NS01240, K08NS001240)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
amyloid-beta, Alzheimer's disease, neurotoxicity, neurotrophic effects, tachykinin antagonists, hippocampal neurons, neuronal differentiation, neuronal cell death, dendritic retraction, axonal retraction, neurotrophic factors
MeSH terms
Amino Acid Sequence, Animals, Cells, Cultured, Embryo, Mammalian, Hippocampus, Molecular Sequence Data, Neurons, Neurotoxins, Peptide Fragments, Tachykinins, Amyloid beta-Peptides, Rats

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