Cited by 80Alzheimer's disease research and treatmentsCholinesterase and Neurodegenerative DiseasesNeuroscience and Neuropharmacology Research

Cholinotrophic basal forebrain system alterations in 3xTg-AD transgenic mice

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Perez, Sylvia E., He, Bin, Muhammad, Nadeem, Oh, Kwang-Jin, Fahnestock, Margaret, Ikonomovic, Milos D., Mufson, Elliott J.·2011·Neurobiology of Disease

Abstract

The cholinotrophic system, which is dependent upon nerve growth factor and its receptors for survival, is selectively vulnerable in Alzheimer's disease (AD). But, virtually nothing is known about how this deficit develops in relation to the hallmark lesions of this disease, amyloid plaques and tau containing neurofibrillary tangles. The vast majority of transgenic models of AD used to evaluate the effect of beta amyloid (Aβ) deposition upon the cholinotrophic system over-express the amyloid precursor protein (APP). However, nothing is known about how this system is affected in triple transgenic (3xTg)-AD mice, an AD animal model displaying Aβ plaque- and tangle-like pathology in the cortex and hippocampus, which receive extensive cholinergic innervation. We performed a detailed morphological and biochemical characterization of the cholinotrophic system in young (2-4 months), middle-aged (13-15 months) and old (18-20 months) 3xTg-AD mice. Cholinergic neuritic swellings increased in number and size with age, and were more conspicuous in the hippocampal-subicular complex in aged female than in 3xTg-AD male mice. Stereological analysis revealed a reduction in choline acetyltransferase (ChAT) positive cells in the medial septum/vertical limb of the diagonal band of Broca in aged 3xTg-AD mice. ChAT enzyme activity levels decreased significantly in the hippocampus of middle-aged 3xTg-AD mice compared to age-matched non-transgenic (or wild type) mice. ProNGF protein levels increased in the cortex of aged 3xTg-AD mice, whereas TrkA protein levels were reduced in a gender-dependent manner in aged mutant mice. In contrast, p75(NTR) protein cortical levels were stable but increased in the hippocampus of aged 3xTg-AD mice. These data demonstrate that cholinotrophic alterations in 3xTg-AD mice are age- and gender-dependent and more pronounced in the hippocampus, a structure more severely affected by Aβ plaque pathology.

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Crossref · 10.1016/j.nbd.2010.10.002

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  • The increase of FA and KFA in the hippocampus may be related to the progressive loss of cholinergic unmyelinated axons, resulting in a more aligned, anisotropic environment.

    “The increase of FA and KFA in the hippocampus may be related to the progressive loss of cholinergic unmyelinated axons [9], resulting in a more aligned, anisotropic environment.”

    From Brain microstructure abnormalities in the 3xTg-AD mouse – A diffusion MRI and morphology correlation study (2022) · cites this paper as [9]

    The Results section reports a qualitative decrease in cholinergic fiber staining in the subiculum of aged female 3xTg-AD mice, less obvious in the hippocampus proper. The Discussion says the study did not count fibers; it cites other studies for age-dependent fiber loss. Thus, this paper supports cholinergic fiber alteration but does not establish progressive loss of unmyelinated hippocampal axons. The FA/KFA explanation is the citing authors’ proposed interpretation, not a finding attributed to this source. (LLM, conf=0.86)

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  • The 3xTg-AD mouse has synaptic and cholinergic degeneration deficits.

    “synaptic and cholinergic degeneration deficits (Perez et al., 2011)”

    From Early stage alterations in white matter and decreased functional interhemispheric hippocampal connectivity in the 3xTg mouse model of Alzheimer’s disease. (2019) · cites this paper as Perez et al., 2011

    The Discussion section reports age-dependent cholinergic neuritic dystrophy and reduced cholinergic fiber density in 3xTg-AD mice. It does not report synaptic degeneration in these mice; the synaptic findings located in our copy appear only in titles in the References section. No page numbers are available in our copy. (LLM, conf=0.86)

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2 of the 96 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Frade JM Barde YA Nerve growth factor: two receptors, multiple functions Bioessays 1998 20 137 45 9631659
  2. Gilmor ML Erickson JD Varoqui H Hersh LB Bennett DA Cochran EJ Mufson EJ Levey AI Preservation of nucleus basalis neurons containing choline acetyltransferase and the vesicular acetylcholine transporter in the elderly with mild cognitive impairment and early Alzheimer's disease J Comp Neurol 1999 411 693 704 10421878

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Authors
Perez, S. E., He, B., Muhammad, N., Oh, K.-J., Fahnestock, M., Ikonomovic, M. D., & Mufson, E. J.
Affiliations
  • Rush University Medical Center (US)
  • McMaster University (CA)
Corresponding author
Mufson, Elliott J.
Venue
Neurobiology of Disease
Publisher
Elsevier BV
Published
2011-02
Volume
41
Issue
2
Pages
338-352
ISSN
0969-9961 (ISSN-L)
OpenAlex
W2013770936
Cited by
80
References
96
Citations by year
2026: 2 · 2025: 3 · 2024: 5 · 2023: 5 · 2022: 5 · 2021: 11 · 2020: 1 · 2019: 6 · 2018: 5 · 2017: 4 · 2016: 4 · 2015: 6 · 2014: 7 · 2013: 8 · 2012: 6
FWCI
3.47
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Disease (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Institute on Aging (P01AG014449, AG10688, R01AG043375, R01AG010668)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
Alzheimer's disease, 3xTg-AD mice, nerve growth factor, choline acetyltransferase, medial septum, diagonal band of Broca, hippocampus, amyloid plaques, neurofibrillary tangles, amyloid-beta, proNGF, TrkA, p75 neurotrophin receptor, age-related changes, sex differences, cholinergic innervation
MeSH terms
Acetylcholine, Aging, Alzheimer Disease, Animals, Cholinergic Fibers, Disease Models, Animal, Female, Hippocampus, Humans, Male, Mice, Transgenic, Sex Characteristics, Amyloid beta-Peptides, Basal Nucleus of Meynert, Mice, Plaque, Amyloid

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