Cited by 39Alzheimer's disease research and treatmentsRedox biology and oxidative stressNeuroscience and Neuropharmacology Research

Global analysis of S-nitrosylation sites in the wild type (APP) transgenic mouse brain: Clues for synaptic pathology

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Zaręba-Kozioł, Monika, Szwajda, Agnieszka, Dadlez, Michał, Wysłouch-Cieszyńska, Aleksandra, Lalowski, Maciej·2014·Molecular & Cellular Proteomics

Abstract

Alzheimer's disease (AD) is characterized by an early synaptic loss, which strongly correlates with the severity of dementia. The pathogenesis and causes of characteristic AD symptoms are not fully understood. Defects in various cellular cascades were suggested, including the imbalance in production of reactive oxygen and nitrogen species. Alterations in S-nitrosylation of several proteins were previously demonstrated in various AD animal models and patients. In this work, using combined biotin-switch affinity/nano-LC-MS/MS and bioinformatic approaches we profiled endogenous S-nitrosylation of brain synaptosomal proteins from wild type and transgenic mice overexpressing mutated human Amyloid Precursor Protein (hAPP). Our data suggest involvement of S-nitrosylation in the regulation of 138 synaptic proteins, including MAGUK, CamkII, or synaptotagmins. Thirty-eight proteins were differentially S-nitrosylated in hAPP mice only. Ninety-five S-nitrosylated peptides were identified for the first time (40% of total, including 33 peptides exclusively in hAPP synaptosomes). We verified differential S-nitrosylation of 10 (26% of all identified) synaptosomal proteins from hAPP mice, by Western blotting with specific antibodies. Functional enrichment analysis linked S-nitrosylated proteins to various cellular pathways, including: glycolysis, gluconeogenesis, calcium homeostasis, ion, and vesicle transport, suggesting a basic role of this post-translational modification in the regulation of synapses. The linkage of SNO-proteins to axonal guidance and other processes related to APP metabolism exclusively in the hAPP brain, implicates S-nitrosylation in the pathogenesis of Alzheimer's disease.

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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 [114]

    The study’s results and Discussion (page not provided) identify differentially S-nitrosylated synaptic and metabolic proteins and link S-nitrosylated proteins to glycolysis and calcium homeostasis. The paper discusses apoptosis, protein misfolding, and mitochondrial fragmentation, but does not establish the full list of claimed functional categories—particularly mitochondrial export and neuroinflammation—as findings of its proteomic study. It also identifies altered S-nitrosylation rather than demonstrating altered function for all identified proteins. (LLM, conf=0.85)

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Authors
Zaręba-Kozioł, M., Szwajda, A., Dadlez, M., Wysłouch-Cieszyńska, A., & Lalowski, M.
Affiliations
  • Institute of Biochemistry and Biophysics, Polish Academy of Sciences (PL)
  • Institute for Molecular Medicine Finland (FI)
  • University of Helsinki (FI)
Corresponding author
Lalowski, Maciej
Venue
Molecular & Cellular Proteomics
Publisher
Elsevier BV
Published
2014-09
Volume
13
Issue
9
Pages
2288-2305
ISSN
1535-9476 (ISSN-L)
OpenAlex
W2140005295
Cited by
39
References
145
Citations by year
2024: 4 · 2023: 1 · 2022: 5 · 2021: 2 · 2020: 5 · 2019: 4 · 2018: 1 · 2017: 3 · 2016: 6 · 2015: 5 · 2014: 3
FWCI
3.78
Type
journal article
Language
en
Open access
Locations
  • Molecular & Cellular Proteomics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Helsingin Yliopisto
  • Fundacja na rzecz Nauki Polskiej (TEAM/2011-7/1, POIG.02.02.00-14-024/08-00)
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 › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
S-nitrosylation, Alzheimer's disease, amyloid precursor protein, APP transgenic mice, synaptosomal proteins, synaptic proteins, post-translational modification, synaptic regulation, membrane-associated guanylate kinase, CaMKII, synaptotagmin, glycolysis, calcium homeostasis, vesicle trafficking, axon guidance
MeSH terms
Animals, Brain, Female, Mice, Transgenic, Nerve Tissue Proteins, Protein Processing, Post-Translational, Synapses, Synaptosomes, S-Nitrosothiols, Nitric Oxide Synthase Type II, Nitric Oxide Synthase Type I

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