Cited by 305Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsDementia and Cognitive Impairment Research

Locus Ceruleus Degeneration Promotes Alzheimer Pathogenesis in Amyloid Precursor Protein 23 Transgenic Mice

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Heneka, Michael T., Ramanathan, Mutiah, Jacobs, Andreas H., Dumitrescu-Ozimek, Lucia, Bilkei-Gorzo, Andras, Debeir, Thomas, Sastre, Magdalena, Galldiks, Norbert +5 more·2006·The Journal of Neuroscience

Abstract

Locus ceruleus (LC) degeneration and loss of cortical noradrenergic innervation occur early in Alzheimer’s disease (AD). Although this has been known for several decades, the contribution of LC degeneration to AD pathogenesis remains unclear. We induced LC degeneration with N-(2-chloroethyl)-N-ethyl-bromo-benzylamine (dsp4) in amyloid precursor protein 23 (APP23) transgenic mice with a low amyloid load. Then 6 months later the LC projection areas showed a robust elevation of glial inflammation along with augmented amyloid plaque deposits. Moreover, neurodegeneration and neuronal loss significantly increased. Importantly, the paraventricular thalamus, a nonprojection area, remained unaffected. Radial arm maze and social partner recognition tests revealed increased memory deficits while high-resolution magnetic resonance imaging-guided micro-positron emission tomography demonstrated reduced cerebral glucose metabolism, disturbed neuronal integrity, and attenuated acetylcholinesterase activity. Nontransgenic mice with LC degeneration were devoid of these alterations. Our data demonstrate that the degeneration of LC affects morphology, metabolism, and function of amyloid plaque-containing higher brain regions in APP23 mice. We postulate that LC degeneration substantially contributes to AD development.

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Crossref · 10.1523/jneurosci.4236-05.2006

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  • Lesioning the locus coeruleus pathway increases plaque pathology in terminal fields of the cerebral cortex.

    “In contrast, lesioning of another projection pathway, that from the locus coeruleus, was reported to increase plaque pathology in terminal fields of the cerebral cortex [72].”

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Authors
Heneka, M. T., Ramanathan, M., Jacobs, A. H., Dumitrescu-Ozimek, L., Bilkei-Gorzo, A., Debeir, T., Sastre, M., Galldiks, N., Zimmer, A., Hoehn, M., Heiss, W.-D., Klockgether, T., & Staufenbiel, M.
Affiliations
University of Bonn (DE)
Venue
The Journal of Neuroscience
Published
2006-02-01
Volume
26
Issue
5
Pages
1343-1354
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2118414216
Cited by
305
References
54
Citations by year
2026: 9 · 2025: 9 · 2024: 18 · 2023: 21 · 2022: 23 · 2021: 18 · 2020: 16 · 2019: 16 · 2018: 12 · 2017: 20 · 2016: 9 · 2015: 17 · 2014: 11 · 2013: 17 · 2012: 19
FWCI
7.31
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Open Repository and Bibliography (University of Luxembourg) (submittedVersion, other-oa)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (SFB400)
  • International Brain Research Organization
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease pathogenesis, glial inflammation, amyloid plaques, neurodegeneration, memory impairment, brain glucose metabolism, acetylcholinesterase activity, paraventricular thalamus, cholinergic hypothesis
MeSH terms
Alzheimer Disease, Animals, Astrocytes, Brain, Cognition Disorders, Female, Locus Coeruleus, Mice, Transgenic, Nerve Degeneration, Norepinephrine, Amyloid beta-Protein Precursor, Microglia, Peroxynitrous Acid, Positron-Emission Tomography, Vesicular Acetylcholine Transport Proteins, Mice, Nitric Oxide Synthase Type II, Plaque, Amyloid

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