Cited by 29Alzheimer's disease research and treatmentsCholinesterase and Neurodegenerative DiseasesMedicinal Plants and Neuroprotection

Biophysical and In Vivo Studies Identify a New Natural-Based Polyphenol, Counteracting Aβ Oligomerization In Vitro and Aβ Oligomer-Mediated Memory Impairment and Neuroinflammation in an Acute Mouse Model of Alzheimer's Disease

Tomaselli, Simona, La Vitola, Pietro, Pagano, Katiuscia, Brandi, Edoardo, Santamaria, Giulia, Galante, Denise, D’Arrigo, Cristina, Moni, Lisa +8 more·2019·ACS Chemical Neuroscience

Abstract

In this study natural-based complex polyphenols, obtained through a smart synthetic approach, have been evaluated for their ability to inhibit the formation of Aβ 42 oligomers, the most toxic species causing synaptic dysfunction, neuroinflammation, and neuronal death leading to the onset and progression of Alzheimer’s disease. In vitro neurotoxicity tests on primary hippocampal neurons have been employed to select nontoxic candidates. Solution NMR and molecular docking studies have been performed to clarify the interaction mechanism of Aβ 42 with the synthesized polyphenol derivatives, and highlight the sterical and chemical requirements important for their antiaggregating activity. NMR results indicated that the selected polyphenolic compounds target Aβ 42 oligomeric species. Combined NMR and docking studies indicated that the Aβ 42 central hydrophobic core, namely, the 17–31 region, is the main interaction site. The length of the peptidomimetic scaffold and the presence of a guaiacol moiety were identified as important requirements for the antiaggregating activity. In vivo experiments on an Aβ 42 oligomer-induced acute mouse model highlighted that the most promising polyphenolic derivative (PP04) inhibits detrimental effects of Aβ 42 oligomers on memory and glial cell activation. NMR kinetic studies showed that PP04 is endowed with the chemical features of true inhibitors, strongly affecting both the Aβ 42 nucleation and growth rates, thus representing a promising candidate to be further developed into an effective drug against neurodegenerative diseases of the amyloid type.

Integrity signals

Registry

Crossref · 10.1021/acschemneuro.9b00241

Cites

56 of 56 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Tomaselli, S., La Vitola, P., Pagano, K., Brandi, E., Santamaria, G., Galante, D., D’Arrigo, C., Moni, L., Lambruschini, C., Banfi, L., Lucchetti, J., Fracasso, C., Molinari, H., Forloni, G., Balducci, C., & Ragona, L.
Affiliations
  • Institute for Macromolecular Studies (IT)
  • Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
  • Mario Negri Institute for Pharmacological Research (IT)
  • Istituto per lo Studio delle Macromolecole (ISMAC), CNR, Genoa 16149, Italy
  • University of Genoa (IT)
Corresponding author
  • Balducci, Claudia
  • Ragona, Laura
Venue
ACS Chemical Neuroscience
Published
2019-10-11
Volume
10
Issue
11
Pages
4462-4475
ISSN
1948-7193 (ISSN-L)
OpenAlex
W2979957602
Cited by
29
References
56
Citations by year
2024: 7 · 2023: 4 · 2022: 6 · 2021: 5 · 2020: 6 · 2019: 1
FWCI
3.10
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Chemical Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial Research Information System (University of Genoa) (submittedVersion)
Funders
  • Alzheimer's Association (NIRG-14-321500)
  • Fondazione Cariplo (2015-0503)
  • Fondazione Antonio de Marco
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
Keywords
Alzheimer's disease, polyphenol derivatives, memory impairment, neuroinflammation, hippocampal neurons, guaiacol, nucleation and growth kinetics, glial activation
MeSH terms
Acute Disease, Alzheimer Disease, Animals, Cells, Cultured, Disease Models, Animal, Inflammation, Memory Disorders, Mice, Inbred C57BL, Peptide Fragments, Amyloid beta-Peptides, Protein Structure, Secondary, Mice, Polyphenols, Molecular Docking Simulation

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review