Cited by 198Alzheimer's disease research and treatmentsMicroRNA in disease regulationNeuroinflammation and Neurodegeneration Mechanisms

MicroRNA-153 Physiologically Inhibits Expression of Amyloid-β Precursor Protein in Cultured Human Fetal Brain Cells and Is Dysregulated in a Subset of Alzheimer Disease Patients

Open access
Long, Justin M., Ray, Balmiki, Lahiri, Debomoy K.·2012·Journal of Biological Chemistry

Abstract

Regulation of amyloid-β (Aβ) precursor protein (APP) expression is complex. MicroRNAs (miRNAs) are expected to participate in the molecular network that controls this process. The composition of this network is, however, still undefined. Elucidating the complement of miRNAs that regulate APP expression should reveal novel drug targets capable of modulating Aβ production in AD. Here, we investigated the contribution of miR-153 to this regulatory network. A miR-153 target site within the APP 3'-untranslated region (3'-UTR) was predicted by several bioinformatic algorithms. We found that miR-153 significantly reduced reporter expression when co-transfected with an APP 3'-UTR reporter construct. Mutation of the predicted miR-153 target site eliminated this reporter response. miR-153 delivery in both HeLa cells and primary human fetal brain cultures significantly reduced APP expression. Delivery of a miR-153 antisense inhibitor to human fetal brain cultures significantly elevated APP expression. miR-153 delivery also reduced expression of the APP paralog APLP2. High functional redundancy between APP and APLP2 suggests that miR-153 may target biological pathways in which they both function. Interestingly, in a subset of human AD brain specimens with moderate AD pathology, miR-153 levels were reduced. This same subset also exhibited elevated APP levels relative to control specimens. Therefore, endogenous miR-153 inhibits expression of APP in human neurons by specifically interacting with the APP 3'-UTR. This regulatory interaction may have relevance to AD etiology, where low miR-153 levels may drive increased APP expression in a subset of AD patients.

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Crossref · 10.1074/jbc.m112.366336

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  • miRNAs are abundantly expressed in the brain, and miRNA dysfunction contributes to neurological diseases.

    “miRNAs have been shown to be abundantly expressed in the brain, and miRNA dysfunction contributes to neurological diseases.22,23”
  • Earlier reviews have largely focused on global miRNA expression shifts in AD brain tissue, therapeutic miRNA candidates, or body-fluid biomarker signatures, but do not present how miRNA dysfunction propagates across interacting CNS cell types.

    “Earlier reviews have largely focused on global miRNA expression shifts in AD brain tissue, therapeutic miRNA candidates, or body-fluid biomarker signatures (Li et al., 2024; Long et al., 2012; Salta and De Strooper, 2017; Samadian et al., 2021; Walgrave et al., 2021b; Wei et al., 2020; Yoon et al., 2022). Although these approaches are valuable, they do not present how miRNA dysfunction propagates”

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Authors
Long, J. M., Ray, B., & Lahiri, D. K.
Affiliations
Indiana University Indianapolis (US)
Corresponding author
Lahiri, Debomoy K.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2012-09
Volume
287
Issue
37
Pages
31298-31310
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2056488510
Cited by
198
References
94
Citations by year
2026: 3 · 2025: 10 · 2024: 15 · 2023: 16 · 2022: 18 · 2021: 23 · 2020: 16 · 2019: 24 · 2018: 7 · 2017: 12 · 2016: 8 · 2015: 14 · 2014: 19 · 2013: 12 · 2012: 1
FWCI
9.87
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (AG 18379, R01AG018884, AG18884, R01AG018379)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
amyloid precursor protein, 3' untranslated region, APLP2, Alzheimer's disease, microRNA binding sites, fetal brain cells, gene expression dysregulation
MeSH terms
Alzheimer Disease, Brain, Female, Fetus, Gene Expression Regulation, HeLa Cells, Humans, Male, Nerve Tissue Proteins, Amyloid beta-Protein Precursor, 3' Untranslated Regions, MicroRNAs

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