Cited by 672Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchRetinal Imaging and Analysis

Identification of amyloid plaques in retinas from Alzheimer's patients and noninvasive in vivo optical imaging of retinal plaques in a mouse model

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Koronyo-Hamaoui, Maya, Koronyo, Yosef, Ljubimov, Alexander V., Miller, Carol A., Ko, MinHee K., Black, Keith L., Schwartz, Michal, Farkas, Daniel L.·2011·NeuroImage

Abstract

Noninvasive monitoring of β-amyloid (Aβ) plaques, the neuropathological hallmarks of Alzheimer's disease (AD), is critical for AD diagnosis and prognosis. Current visualization of Aβ plaques in brains of live patients and animal models is limited in specificity and resolution. The retina as an extension of the brain presents an appealing target for a live, noninvasive optical imaging of AD if disease pathology is manifested there. We identified retinal Aβ plaques in postmortem eyes from AD patients (n=8) and in suspected early stage cases (n=5), consistent with brain pathology and clinical reports; plaques were undetectable in age-matched non-AD individuals (n=5). In APP(SWE)/PS1(∆E9) transgenic mice (AD-Tg; n=18) but not in non-Tg wt mice (n=10), retinal Aβ plaques were detected following systemic administration of curcumin, a safe plaque-labeling fluorochrome. Moreover, retinal plaques were detectable earlier than in the brain and accumulated with disease progression. An immune-based therapy effective in reducing brain plaques, significantly reduced retinal Aβ plaque burden in immunized versus non-immunized AD mice (n=4 mice per group). In live AD-Tg mice (n=24), systemic administration of curcumin allowed noninvasive optical imaging of retinal Aβ plaques in vivo with high resolution and specificity; plaques were undetectable in non-Tg wt mice (n=11). Our discovery of Aβ specific plaques in retinas from AD patients, and the ability to noninvasively detect individual retinal plaques in live AD mice establish the basis for developing high-resolution optical imaging for early AD diagnosis, prognosis assessment and response to therapies.

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Crossref · 10.1016/j.neuroimage.2010.06.020

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  1. Burton K Jeong J Wachsmann-Hogiu S Farkas DL Spectral optical imaging in biology and medicine in Biomedical Optical Imaging 2009 Oxford University Press (ISBN: 978-0- 19-515044-5)
  2. Fujimoto JG Farkas DL Biomedical Optical Imaging 2009 Oxford University Press (ISBN: 978-0-19-515044-5)

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Authors
Koronyo-Hamaoui, M., Koronyo, Y., Ljubimov, A. V., Miller, C. A., Ko, M. K., Black, K. L., Schwartz, M., & Farkas, D. L.
Affiliations
  • Cedars-Sinai Medical Center (US)
  • University of Southern California (US)
  • Weizmann Institute of Science (IL)
Corresponding author
Farkas, Daniel L.
Venue
NeuroImage
Publisher
Elsevier BV
Published
2011-01
Volume
54
Pages
S204-S217
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2047202120
Cited by
672
References
50
Citations by year
2026: 38 · 2025: 56 · 2024: 47 · 2023: 45 · 2022: 54 · 2021: 71 · 2020: 76 · 2019: 53 · 2018: 51 · 2017: 39 · 2016: 39 · 2015: 27 · 2014: 22 · 2013: 22 · 2012: 23
FWCI
12.13
Type
journal article
Language
en
Open access
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Cedars-Sinai Medical Center
  • National Institute on Aging (P50-AG05142, P50AG005142)
  • National Eye Institute (R01 EY13431, R01EY013431)
  • National Center for Research Resources (M01RR000425, M01-RR00425)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Retinal Imaging and Analysis
Keywords
Alzheimer's disease, amyloid plaques, retinal imaging, curcumin, APP/PS1 mice, non-invasive optical imaging, early diagnosis, immunotherapy, disease progression
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Animals, Curcumin, Disease Models, Animal, Coloring Agents, Female, Humans, Immunohistochemistry, Male, Mice, Transgenic, Microscopy, Fluorescence, Middle Aged, Retina, Spectrometry, Fluorescence, Imaging, Three-Dimensional, Mice, Plaque, Amyloid

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