Cited by 51Neuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatmentsBarrier Structure and Function Studies

Expression of Macrophage Inflammatory Protein 1-α is Elevated in Alzheimer's Vessels and is Regulated by Oxidative Stress

Tripathy, Debjani, Thirumangalakudi, Lakshmi, Grammas, Paula·2007·Journal of Alzheimer's Disease

Abstract

Inflammatory mediators are highly expressed in the Alzheimer's disease (AD) brain. We have shown that in AD the cerebral microcirculation is a rich source of cytokines and chemokines including interleukins (IL) 1beta, IL-6, IL-8, tumor necrosis factor-alpha, and monocyte chemoattractant protein-1. However, the factors that regulate expression of these inflammatory proteins have not been defined. The objective of this study is to compare expression of macrophage inflammatory protein 1-alpha (MIP-1alpha) in brain microvessels isolated from AD patients to vessels from age-matched controls and further to determine whether expression of MIP-1alpha in brain endothelial cells is altered by oxidative stress. The data show that brain AD-derived microvessels express high levels of MIP-1alpha mRNA and release high levels of MIP-1alpha protein compared to brain microvessels isolated from controls. Treatment of brain endothelial cell cultures with menadione, a superoxide releasing compound, hydrogen peroxide, lipopolysacharride, or oxidatively modified low density lipoproteins (LDL) (Ox-LDL, HNE-LDL) results in a dose- dependent increase in MIP-1alpha mRNA levels and MIP-1alpha release into the media. These results suggest that oxidative and lipid insults to the brain microvasculature are likely to contribute to the inflammatory milieu of the AD brain.

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Crossref · 10.3233/jad-2007-11405

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Authors
Tripathy, D., Thirumangalakudi, L., & Grammas, P.
Affiliations
Texas Tech University (US)
Corresponding author
Grammas, Paula
Venue
Journal of Alzheimer's Disease
Published
2007-07-06
Volume
11
Issue
4
Pages
447-455
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W1463939286
Cited by
51
References
0
Citations by year
2025: 1 · 2024: 7 · 2023: 2 · 2022: 2 · 2021: 5 · 2020: 7 · 2019: 2 · 2017: 1 · 2016: 2 · 2015: 2 · 2014: 3 · 2013: 2 · 2012: 1
FWCI
2.33
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (AG 15964, AG-020569, R01AG020569, R01AG015964)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
macrophage inflammatory protein-1alpha, Alzheimer's disease
MeSH terms
Alzheimer Disease, Animals, Brain, Cells, Cultured, Endothelium, Vascular, Gene Expression Regulation, Humans, Microcirculation, RNA, Messenger, Lipid Peroxidation, Up-Regulation, Oxidative Stress, Reverse Transcriptase Polymerase Chain Reaction, Rats, Chemokine CCL3

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