Cited by 517Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Gene expression profiling of 12633 genes in Alzheimer hippocampal CA1: transcription and neurotrophic factor down-regulation and up-regulation of apoptotic and pro-inflammatory signaling

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Colangelo, Vittorio, Schurr, Jill, Ball, Melvyn J., Pelaez, Ricardo Palacios, Bazan, Nicolas G., Lukiw, Walter J.·2002·Journal of Neuroscience Research

Abstract

Alterations in transcription, RNA editing, translation, protein processing, and clearance are a consistent feature of Alzheimer's disease (AD) brain. To extend our initial study (Alzheimer Reports [2000] 3:161-167), RNA samples isolated from control and AD hippocampal cornu ammonis 1 (CA1) were analyzed for 12633 gene and expressed sequence tag (EST) expression levels using DNA microarrays (HG-U95Av2 Genechips; Affymetrix, Santa Clara, CA). Hippocampal CA1 tissues were carefully selected from several hundred potential specimens obtained from domestic and international brain banks. To minimize the effects of individual differences in gene expression, RNA of high spectral quality (A(260/280) > or= 1.9) was pooled from CA1 of six control or six AD subjects. Results were compared as a group; individual gene expression patterns for the most-changed RNA message levels were also profiled. There were no significant differences in age, postmortem interval (mean < or = 2.1 hr) nor tissue pH (range 6.6-6.9) between the two brain groups. AD tissues were derived from subjects clinically classified as CDR 2-3 (CERAD/NIA). Expression data were analyzed using GeneSpring (Silicon Genetics, Redwood City, CA) and Microarray Data Mining Tool (Affymetrix) software. Compared to controls and 354 background/alignment markers, AD brain showed a generalized depression in brain gene transcription, including decreases in RNA encoding transcription factors (TFs), neurotrophic factors, signaling elements involved in synaptic plasticity such as synaptophysin, metallothionein III, and metal regulatory factor-1. Three- or morefold increases in RNAs encoding DAXX, cPLA(2), CDP5, NF-kappaBp52/p100, FAS, betaAPP, DPP1, NFIL6, IL precursor, B94, HB15, COX-2, and CEX-1 signals were strikingly apparent. These data support the hypothesis of widespread transcriptional alterations, misregulation of RNAs involved in metal ion homeostasis, TF signaling deficits, decreases in neurotrophic support and activated apoptotic and neuroinflammatory signaling in moderately affected AD hippocampal CA1.

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Authors
Colangelo, V., Schurr, J., Ball, M. J., Pelaez, R. P., Bazan, N. G., & Lukiw, W. J.
Affiliations
  • Louisiana State University Health Sciences Center New Orleans (US)
  • Oregon Health & Science University (US)
Corresponding author
Lukiw, Walter J.
Venue
Journal of Neuroscience Research
Publisher
Wiley
Published
2002-10-18
Volume
70
Issue
3
Pages
462-473
ISSN
  • 0360-4012 (ISSN-L)
  • 1097-4547
OpenAlex
W1977813572
Cited by
517
References
75
Citations by year
2026: 6 · 2025: 3 · 2024: 4 · 2023: 15 · 2022: 22 · 2021: 16 · 2020: 14 · 2019: 13 · 2018: 15 · 2017: 15 · 2016: 29 · 2015: 25 · 2014: 28 · 2013: 23 · 2012: 19
FWCI
19.18
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • U.S. Public Health Service
  • National Institute on Aging (AG 08017, P30AG008017, AG18031, R01AG018031)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, hippocampal CA1, gene expression profiling, transcriptional downregulation, neurotrophic factors, apoptosis, neuroinflammation, NF-κB signaling, metal homeostasis, metallothionein, synaptophysin, cyclooxygenase-2, Fas, amyloid precursor protein, DAXX
MeSH terms
Aged, Alzheimer Disease, Encephalitis, Female, Gene Expression Regulation, Hippocampus, Homeostasis, Humans, Male, Nerve Growth Factors, Transcription Factors, Signal Transduction, Down-Regulation, Up-Regulation, Apoptosis, DNA, Complementary, Oligonucleotide Array Sequence Analysis

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