Cited by 41Alzheimer's disease research and treatmentsRedox biology and oxidative stressNeuroinflammation and Neurodegeneration Mechanisms

Quantitative proteomics of synaptosome S‐nitrosylation in Alzheimer’s disease

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Wijasa, Teodora Stella, Sylvester, Marc, Brocke‐Ahmadinejad, Nahal, Schwartz, Stephanie, Santarelli, Francesco, Gieselmann, Volkmar, Klockgether, Thomas, Brosseron, Frederic +1 more·2020·Journal of Neurochemistry

Abstract

Abstract Increasing evidence suggests that both synaptic loss and neuroinflammation constitute early pathologic hallmarks of Alzheimer’s disease. A downstream event during inflammatory activation of microglia and astrocytes is the induction of nitric oxide synthase type 2, resulting in an increased release of nitric oxide and the post‐translational S‐nitrosylation of protein cysteine residues. Both early events, inflammation and synaptic dysfunction, could be connected if this excess nitrosylation occurs on synaptic proteins. In the long term, such changes could provide new insight into patho‐mechanisms as well as biomarker candidates from the early stages of disease progression. This study investigated S‐nitrosylation in synaptosomal proteins isolated from APP/PS1 model mice in comparison to wild type and NOS2−/− mice, as well as human control, mild cognitive impairment and Alzheimer’s disease brain tissues. Proteomics data were obtained using an established protocol utilizing an isobaric mass tag method, followed by nanocapillary high performance liquid chromatography tandem mass spectrometry. Statistical analysis identified the S‐nitrosylation sites most likely derived from an increase in nitric oxide (NO) in dependence of presence of AD pathology, age and the key enzyme NOS2. The resulting list of candidate proteins is discussed considering function, previous findings in the context of neurodegeneration, and the potential for further validation studies. image

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  • Selected studies of the S-nitrosylation proteome in AD identified key proteins with altered functions associated with antioxidant, glycolysis, mitochondrial export, calcium homeostasis, synapses, apoptosis, mitochondrial dynamics, protein folding, and neuroinflammation.

    “Selected studies of the S-nitrosylation proteome in AD identified key proteins with altered functions associated with antioxidant, glycolysis, mitochondrial export, calcium homeostasis, synapses, apoptosis, mitochondrial dynamics, protein folding, and neuroinflammation, among other functions [113,114,115,116].”

    From Mitochondrial Oxidative and Nitrosative Stress and Alzheimer Disease (2020) · cites this paper as [115]

    The Results (pp. 5, 8) identify altered S-nitrosylation of synaptic proteins in AD models and human samples, and the Discussion (pp. 10–11) links candidates to metabolism, synaptic function, and possible apoptosis. The paper does not establish altered protein functions across the full list: it does not identify glycolysis, mitochondrial export or dynamics, calcium homeostasis, or protein folding as findings of this study, and says the effects of one identified nitrosylation site remain unclear. (LLM, conf=0.87)

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  1. Mak T. and Saunders M. (2006) The Immune Response - 1st ed.

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Authors
Wijasa, T. S., Sylvester, M., Brocke‐Ahmadinejad, N., Schwartz, S., Santarelli, F., Gieselmann, V., Klockgether, T., Brosseron, F., & Heneka, M. T.
Affiliations
  • German Center for Neurodegenerative Diseases (DE)
  • University of Bonn (DE)
  • University Hospital Bonn (DE)
Corresponding author
Heneka, Michael T.
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
2019-10-21
Volume
152
Issue
6
Pages
710-726
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W2972561249
Cited by
41
References
108
Citations by year
2026: 2 · 2025: 4 · 2024: 8 · 2023: 7 · 2022: 7 · 2021: 9 · 2020: 4
FWCI
3.42
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurochemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Open Repository and Bibliography (University of Luxembourg) (submittedVersion, other-oa)
  • DZNE Pub (submittedVersion, cc-by)
Funders
FP7 Health (HEALTH‐F2‐2011‐278850)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
S-nitrosylation, Alzheimer's disease, synaptosomes, nitric oxide, synaptic proteins, neuroinflammation, microglia, astrocytes, APP/PS1 mice, mild cognitive impairment, biomarkers, post-translational modification
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Animals, Brain, Disease Models, Animal, Female, Humans, Male, Mice, Inbred C57BL, Mice, Transgenic, Nerve Tissue Proteins, Nitric Oxide, Synaptosomes, Signal Transduction, Proteomics, Mice, Nitric Oxide Synthase Type II

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