Cited by 133Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchAdvanced Proteomics Techniques and Applications

Quantitative proteomics reveals distinct composition of amyloid plaques in Alzheimer’s disease

Xiong, Feng, Ge, Wei, Ma, Chao·2019·Alzheimer's & Dementia

Abstract

INTRODUCTION: We investigated the proteomic profiles of amyloid plaques (APs) from Alzheimer's disease (AD) and age-matched non-AD brains and APP/PS1 transgenic model mice. METHODS: APs and adjacent control regions were collected from fresh-frozen brain sections using laser capture dissection. Proteins were quantitated using tag-labeling coupled high-throughput mass spectra. RESULTS: Over 4000 proteins were accurately quantified, and more than 40 were identified as highly enriched in both AD and non-AD APs, including apoE, midkine, VGFR1, and complement C4. Intriguingly, proteins including synaptic structural proteins and complement C1r, C5, and C9 were found to be upregulated in AD APs but not non-AD APs. Moreover, the proteomic pattern of AD APs was distinct from APP/PS1 APs and exhibited correlation with aging hippocampus. DISCUSSION: Our results provide new insight into AP composition. We demonstrate unexpected differences between AD, non-AD, and APP/PS1 mouse APs, which may relate to different pathological processes.

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Crossref · 10.1016/j.jalz.2018.10.006

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  • A recent proteomics study of amyloid plaques isolated by laser-capture microdissection confirmed five proteins (MDK, NTN1, SMOC1, SLIT2, HTRA1) in plaque areas.

    “Additional evidence comes from a recent proteomics study of amyloid plaques isolated by laser-capture microdissection (Xiong et al., 2019), confirming 5 proteins (MDK, NTN1, SMOC1, SLIT2, and HTRA1) in the plaque areas.”

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Authors
Xiong, F., Ge, W., & Ma, C.
Affiliations
Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
Corresponding author
  • Ge, Wei
  • Ma, Chao
Venue
Alzheimer's & Dementia
Publisher
Wiley
Published
2018-11-28
Volume
15
Issue
3
Pages
429-440
ISSN
  • 1552-5260 (ISSN-L)
  • 1552-5279
OpenAlex
W2904603472
Cited by
133
References
52
Citations by year
2026: 14 · 2025: 21 · 2024: 16 · 2023: 19 · 2022: 13 · 2021: 26 · 2020: 17 · 2019: 6 · 2012: 1
FWCI
8.57
Type
journal article
Language
en
Open access
closed
Locations
  • Alzheimer s & Dementia (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (81271239, 91632113, 81771205)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
Keywords
Alzheimer's disease, amyloid plaques
MeSH terms
Adult, Aged, 80 and over, Alzheimer Disease, Animals, Brain, Disease Models, Animal, Humans, Mice, Inbred C57BL, Mice, Transgenic, Middle Aged, Amyloid beta-Protein Precursor, Computational Biology, Proteomics, Presenilin-1, Plaque, Amyloid

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