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APOE-mimetic peptides reduce behavioral deficits, plaques and tangles in Alzheimer's disease transgenics.

Publication ,  Journal Article
Vitek, MP; Christensen, DJ; Wilcock, D; Davis, J; Van Nostrand, WE; Li, FQ; Colton, CA
Published in: Neurodegener Dis
2012

BACKGROUND: After age, the second largest risk factor for Alzheimer's disease (AD) is apolipoprotein E (APOE) genotype, where APOE4 is associated with lower apoE protein levels, more severer brain pathology, enhanced inflammation and disease. Small peptides corresponding to the receptor-binding region of apoE mimic the anti-inflammatory activity of the apoE holoprotein. These apoE mimetics greatly improve behavioral outcomes and neuronal survival in head trauma models that display AD pathology and neuronal loss. OBJECTIVE: To determine whether apoE mimetics change behavior, inflammation and pathology in CVND-AD (SwDI-APP/NOS2(-/-)) transgenic mice. METHODS: Starting at 9 months, apoE peptides were subcutaneously administered 3 times per week for 3 months followed by behavioral, histochemical and biochemical testing. RESULTS: Treatment with apoE mimetics significantly improved behavior while decreasing the inflammatory cytokine IL-6, neurofibrillary tangle-like and amyloid plaque-like structures. Biochemical measures matched the visible pathological results. CONCLUSIONS: Treatment with apoE mimetics significantly improved behavior, reduced inflammation and reduced pathology in CVND-AD mice. These improvements are associated with apoE-mimetic-mediated increases in protein phosphatase 2A activity. Testing in additional AD models showed similar benefits, reinforcing this novel mechanism of action of apoE mimetics. These data suggest that the combination of anti-inflammatory and neuroprotective activities of apoE mimetics represents a new generation of potential therapeutics for AD.

Duke Scholars

Published In

Neurodegener Dis

DOI

EISSN

1660-2862

Publication Date

2012

Volume

10

Issue

1-4

Start / End Page

122 / 126

Location

Switzerland

Related Subject Headings

  • Transforming Growth Factor beta
  • Time Factors
  • RNA, Messenger
  • Phosphopyruvate Hydratase
  • Nitric Oxide Synthase Type II
  • Neurology & Neurosurgery
  • Neurofibrillary Tangles
  • Mutation
  • Motor Activity
  • Mice, Transgenic
 

Citation

APA
Chicago
ICMJE
MLA
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Vitek, M. P., Christensen, D. J., Wilcock, D., Davis, J., Van Nostrand, W. E., Li, F. Q., & Colton, C. A. (2012). APOE-mimetic peptides reduce behavioral deficits, plaques and tangles in Alzheimer's disease transgenics. Neurodegener Dis, 10(1–4), 122–126. https://doi.org/10.1159/000334914
Vitek, M. P., D. J. Christensen, D. Wilcock, J. Davis, W. E. Van Nostrand, F. Q. Li, and C. A. Colton. “APOE-mimetic peptides reduce behavioral deficits, plaques and tangles in Alzheimer's disease transgenics.Neurodegener Dis 10, no. 1–4 (2012): 122–26. https://doi.org/10.1159/000334914.
Vitek MP, Christensen DJ, Wilcock D, Davis J, Van Nostrand WE, Li FQ, et al. APOE-mimetic peptides reduce behavioral deficits, plaques and tangles in Alzheimer's disease transgenics. Neurodegener Dis. 2012;10(1–4):122–6.
Vitek, M. P., et al. “APOE-mimetic peptides reduce behavioral deficits, plaques and tangles in Alzheimer's disease transgenics.Neurodegener Dis, vol. 10, no. 1–4, 2012, pp. 122–26. Pubmed, doi:10.1159/000334914.
Vitek MP, Christensen DJ, Wilcock D, Davis J, Van Nostrand WE, Li FQ, Colton CA. APOE-mimetic peptides reduce behavioral deficits, plaques and tangles in Alzheimer's disease transgenics. Neurodegener Dis. 2012;10(1–4):122–126.
Journal cover image

Published In

Neurodegener Dis

DOI

EISSN

1660-2862

Publication Date

2012

Volume

10

Issue

1-4

Start / End Page

122 / 126

Location

Switzerland

Related Subject Headings

  • Transforming Growth Factor beta
  • Time Factors
  • RNA, Messenger
  • Phosphopyruvate Hydratase
  • Nitric Oxide Synthase Type II
  • Neurology & Neurosurgery
  • Neurofibrillary Tangles
  • Mutation
  • Motor Activity
  • Mice, Transgenic