Cited by 52Alzheimer's disease research and treatmentsNeuroscience and Neuropharmacology ResearchNeuroinflammation and Neurodegeneration Mechanisms

SORLA attenuates EphA4 signaling and amyloid β–induced neurodegeneration

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Huang, Timothy Y., Zhao, Yingjun, Jiang, Lu-lin, Li, Xiaoguang, Liu, Yan, Sun, Yu, Piña-Crespo, Juan C., Zhu, Bing +4 more·2017·Journal of Experimental Medicine

Abstract

Sortilin-related receptor with LDLR class A repeats (SORLA, SORL1, or LR11) is a genetic risk factor associated with Alzheimer’s disease (AD). Although SORLA is known to regulate trafficking of the amyloid β (Aβ) precursor protein to decrease levels of proteotoxic Aβ oligomers, whether SORLA can counteract synaptic dysfunction induced by Aβ oligomers remains unclear. Here, we show that SORLA interacts with the EphA4 receptor tyrosine kinase and attenuates ephrinA1 ligand–induced EphA4 clustering and activation to limit downstream effects of EphA4 signaling in neurons. Consistent with these findings, SORLA transgenic mice, compared with WT mice, exhibit decreased EphA4 activation and redistribution to postsynaptic densities, with milder deficits in long-term potentiation and memory induced by Aβ oligomers. Importantly, we detected elevated levels of active EphA4 in human AD brains, where EphA4 activation is inversely correlated with SORLA/EphA4 association. These results demonstrate a novel role for SORLA as a physiological and pathological EphA4 modulator, which attenuates synaptotoxic EphA4 activation and cognitive impairment associated with Aβ-induced neurodegeneration in AD.

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Authors
Huang, T. Y., Zhao, Y., Jiang, L.-L., Li, X., Liu, Y., Sun, Y., Piña-Crespo, J. C., Zhu, B., Masliah, E., Willnow, T. E., Pasquale, E. B., & Xu, H.
Affiliations
  • Sanford Burnham Prebys Medical Discovery Institute (US)
  • University of California San Diego (US)
  • Max Delbrück Center (DE)
Corresponding author
Xu, Huaxi
Venue
Journal of Experimental Medicine
Published
2017-11-07
Volume
214
Issue
12
Pages
3669-3685
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2767584725
Cited by
50
References
56
Citations by year
2026: 3 · 2025: 3 · 2024: 4 · 2023: 8 · 2022: 15 · 2021: 4 · 2020: 3 · 2019: 8 · 2018: 2
FWCI
2.63
Type
journal article
Language
en
Open access
Locations
  • The Journal of Experimental Medicine (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (acceptedVersion)
Funders
  • National Institutes of Health (R01AG021173, R01AG038710, R01AG044420, R01NS046673, R01AG18440, R01AG5131, R01AG11385, R01NS076411, R01NS087070)
  • Alzheimer’s Association
  • The Tanz Family Funds
  • Cure Alzheimer’s Fund
  • Shiley-Marcos Alzheimer’s Disease Research Center
  • University of California, San Diego (ADRC 2015 59226)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
SorLA, EphA4, ephrin-A1, amyloid-beta oligomers, Alzheimer's disease, synaptic dysfunction, postsynaptic density, long-term potentiation, memory impairment, synaptotoxicity, receptor tyrosine kinase, cognitive impairment
MeSH terms
Protein Domains, Alzheimer Disease, Animals, Humans, Ligands, Mice, Inbred BALB C, Mice, Transgenic, Mutation, Nerve Degeneration, Protein Binding, Receptors, LDL, Synapses, Amyloid beta-Protein Precursor, Long-Term Potentiation, Growth Cones, LDL-Receptor Related Proteins, Membrane Transport Proteins, Receptor, EphA4, Ephrins, HEK293 Cells

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