Cited by 120Advanced Glycation End Products researchAlzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration Mechanisms

Receptor for advanced glycation end products mediates sepsis-triggered amyloid-β accumulation, Tau phosphorylation, and cognitive impairment

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Gasparotto, Juciano, Girardi, Carolina S., Somensi, Nauana, Ribeiro, Camila T., Moreira, José C.F., Michels, Monique, Sonai, Beatriz, Rocha, Mariane +5 more·2018·Journal of Biological Chemistry

Abstract

Patients recovering from sepsis have higher rates of CNS morbidities associated with long-lasting impairment of cognitive functions, including neurodegenerative diseases.However, the molecular etiology of these sepsis-induced impairments is unclear.Here, we investigated the role of the receptor for advanced glycation end products (RAGE) in neuroinflammation, neurodegeneration-associated changes, and cognitive dysfunction arising after sepsis recovery.Adult Wistar rats underwent cecal ligation and perforation (CLP), and serum and brain (hippocampus and prefrontal cortex) samples were obtained at days 1, 15, and 30 after the CLP.We examined these samples for systemic and brain inflammation; amyloid-␤ peptide (A␤) and Ser-202-phosphorylated Tau (p-Tau Ser-202 ) levels; and RAGE, RAGE ligands, and RAGE intracellular signaling.Serum markers associated with the acute proinflammatory phase of sepsis (TNF␣, IL-1␤, and IL-6) rapidly increased and then progressively decreased during the 30-day period post-CLP, concomitant with a progressive increase in RAGE ligands (S100B, N⑀-[carboxymethyl]lysine, HSP70, and HMGB1).In the brain, levels of RAGE and Toll-like receptor 4, glial fibrillary acidic protein and neuronal nitric-oxide synthase, and A␤ and p-Tau Ser-202 also increased during that time.Of note, intracerebral injection of RAGE antibody into the hippocampus at days 15, 17, and 19 post-CLP reduced A␤ and p-Tau Ser-202 accumulation, Akt/mechanistic target of rapamycin signaling, levels of ionized calcium-binding adapter molecule 1 and glial fibrillary acidic protein, and behavioral deficits associated with cognitive decline.These results indicate that brain RAGE is an essential factor in the pathogenesis of neurological disorders following acute systemic inflammation.

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  1. S ˇimic ´, G., Babic ´Leko, M., Wray, S., Harrington, C., Delalle, I., Jovanov- Milos ˇevic ´, N., Baz ˇadona, D., Buée, L., de Silva, R., Di Giovanni, G., Wis- chik, C., and Hof, P. R. (2016) Tau protein hyperphosphorylation and aggregation in Alzheimer's disease and other tauopathies, and possible neuroprotective strategies. Biomolecules 6, 6 CrossRef Medline · DOI
  2. National Research Council (2011) Committee for the Update of the Guide for the Care and Use of Laboratory Animals. 8th Ed., National Academies Press, Washington, D. C.

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Authors
Gasparotto, J., Girardi, C. S., Somensi, N., Ribeiro, C. T., Moreira, J. C. F., Michels, M., Sonai, B., Rocha, M., Steckert, A. V., Barichello, T., Quevedo, J., Dal-Pizzol, F., & Gelain, D. P.
Affiliations
  • Universidade Federal do Rio Grande do Sul (BR)
  • Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (BR)
  • Universidade do Extremo Sul Catarinense (BR)
Corresponding author
Gelain, Daniel P.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2018-01
Volume
293
Issue
1
Pages
226-244
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2767741561
Cited by
120
References
81
Citations by year
2026: 6 · 2025: 16 · 2024: 8 · 2023: 16 · 2022: 18 · 2021: 18 · 2020: 22 · 2019: 9 · 2018: 7
FWCI
8.64
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (401260/2014–3, 400437/2013–9, 443514/2014–3, 401368/2012–2, 303227/2015–0)
  • Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (16/2551–0000499–4)
  • Fundação de Amparo à Pesquisa e Inovação do Estado de Santa Catarina
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • University of Texas Medical School at Houston
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
receptor for advanced glycation end products, RAGE, sepsis, amyloid-beta deposition, tau phosphorylation, cognitive impairment, Akt/mTOR signaling, Iba1, glial fibrillary acidic protein, systemic inflammation, neuroinflammation, neurodegeneration
MeSH terms
Receptor for Advanced Glycation End Products, Animals, Brain, Cognition, Hippocampus, Inflammation, Male, Phosphorylation, Tumor Necrosis Factor-alpha, Signal Transduction, Amyloid beta-Peptides, tau Proteins, Glycation End Products, Advanced, Rats, Wistar, Sepsis, Neurodegenerative Diseases, Rats, Cognitive Dysfunction

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