Cited by 75Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsCholinesterase and Neurodegenerative Diseases

Inhibiting amyloid-β cytotoxicity through its interaction with the cell surface receptor LilrB2 by structure-based design

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Cao, Qin, Shin, Woo Shik, Chan, Henry, Vuong, Celine K., Dubois, Bethany, Li, Binsen, Murray, Kevin A., Sawaya, Michael R. +4 more·2018·Nature Chemistry

Abstract

Inhibiting the interaction between amyloid-β (Aβ) and a neuronal cell surface receptor, LilrB2, has been suggested as a potential route for treating Alzheimer's disease. Supporting this approach, Alzheimer's-like symptoms are reduced in mouse models following genetic depletion of the LilrB2 homologue. In its pathogenic, oligomeric state, Aβ binds to LilrB2, triggering a pathway to synaptic loss. Here we identify the LilrB2 binding moieties of Aβ (16 KLVFFA 21) and identify its binding site on LilrB2 from a crystal structure of LilrB2 immunoglobulin domains D1D2 complexed to small molecules that mimic phenylalanine residues. In this structure, we observed two pockets that can accommodate the phenylalanine side chains of KLVFFA. These pockets were confirmed to be 16 KLVFFA 21 binding sites by mutagenesis. Rosetta docking revealed a plausible geometry for the Aβ-LilrB2 complex and assisted with the structure-guided selection of small molecule inhibitors. These molecules inhibit Aβ-LilrB2 interactions in vitro and on the cell surface and reduce Aβ cytotoxicity, which suggests these inhibitors are potential therapeutic leads against Alzheimer's disease.

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  • Compounds ALI6 and 66 block Aβ-LilrB2 interaction, reversing cofilin signaling changes and neurite outgrowth inhibition, protecting neuronal cells from Aβ toxicity.

    “Compounds ALI6 (65)586 and 66587 can effectively block this interaction, which reverses the changes in cofilin signaling downstream of LilrB2 and the inhibition of neurite outgrowth, thus protecting neuronal cells from Aβ toxicity.”

    From Recent advances in Alzheimer's disease: Mechanisms, clinical trials and new drug development strategies. (2024) · cites this paper as [586]

    The Results sections on cell-based assays and primary neurons report that ALI6 reduces Aβ–LilrB2-associated binding, restores the Aβ-altered cofilin phosphorylation measure, and protects neurons from Aβ-induced cell death. Our copy does not report that ALI6 reverses inhibition of neurite outgrowth (searched: neurite outgrowth). The separate citation attached to compound 66 is not assessed here. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Compounds inhibiting Aβ/LilrB2 interactions in vitro have been identified, and ALI6 can inhibit Aβ-mediated neurotoxicity in primary neurons.

    “Compounds inhibiting Aβ/LilrB2 interactions in vitro have been identified, and potentially bioactive Aβ/LilrB2 inhibitors such as ALI6 can inhibit Aβ-mediated neurotoxicity in primary neurons [94].”

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Authors
Cao, Q., Shin, W. S., Chan, H., Vuong, C. K., Dubois, B., Li, B., Murray, K. A., Sawaya, M. R., Feigon, J., Black, D. L., Eisenberg, D. S., & Jiang, L.
Affiliations
  • Howard Hughes Medical Institute (US)
  • University of California, Los Angeles (US)
  • Salk Institute for Biological Studies (US)
Corresponding author
  • Eisenberg, David S.
  • Jiang, Lin
Venue
Nature Chemistry
Published
2018-10-08
Volume
10
Issue
12
Pages
1213-1221
ISSN
  • 1755-4330 (ISSN-L)
  • 1755-4349
OpenAlex
W2889706274
Cited by
75
References
47
Citations by year
2026: 4 · 2025: 4 · 2024: 10 · 2023: 8 · 2022: 21 · 2021: 9 · 2020: 10 · 2019: 8 · 2014: 1
FWCI
4.63
Type
journal article
Language
en
Open access
Locations
  • Nature Chemistry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institutes of Health
  • Office of Science
  • National Institute on Aging (RF1AG054022)
  • National Institute of General Medical Sciences (R01GM114463, P41GM103403)
  • National Center for Research Resources (S10RR029205)
  • Argonne National Laboratory
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
Keywords
amyloid-beta, LILRB2, Alzheimer's disease, structure-based drug design, small molecule inhibitors, immunoglobulin domains, binding site identification, synaptic loss, amyloid-beta oligomers
MeSH terms
Alzheimer Disease, Animals, Cell Survival, Dose-Response Relationship, Drug, Humans, Membrane Glycoproteins, Neurons, Receptors, Immunologic, Structure-Activity Relationship, Drug Design, Molecular Structure, Amyloid beta-Peptides, Mice, Small Molecule Libraries

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