Cited by 715MicroRNA in disease regulationNeurogenesis and neuroplasticity mechanismsDevelopmental Biology and Gene Regulation

Regulation of miRNA expression during neural cell specification

Smirnova, Lena, Gräfe, Anja, Seiler, Andrea, Schumacher, Stefan, Nitsch, Robert, Wulczyn, F. Gregory·2005·European Journal of Neuroscience

Abstract

MicroRNA (miRNA) are a newly recognized class of small, noncoding RNA molecules that participate in the developmental control of gene expression. We have studied the regulation of a set of highly expressed neural miRNA during mouse brain development. Temporal control is a characteristic of miRNA regulation in C. elegans and Drosophila, and is also prominent in the embryonic brain. We observed significant differences in the onset and magnitude of induction for individual miRNAs. Comparing expression in cultures of embryonic neurons and astrocytes we found marked lineage specificity for each of the miRNA in our study. Two of the most highly expressed miRNA in adult brain were preferentially expressed in neurons (mir-124, mir-128). In contrast, mir-23, a miRNA previously implicated in neural specification, was restricted to astrocytes. mir-26 and mir-29 were more strongly expressed in astrocytes than neurons, others were more evenly distributed (mir-9, mir-125). Lineage specificity was further explored using reporter constructs for two miRNA of particular interest (mir-125 and mir-128). miRNA-mediated suppression of both reporters was observed after transfection of the reporters into neurons but not astrocytes. miRNA were strongly induced during neural differentiation of embryonic stem cells, suggesting the validity of the stem cell model for studying miRNA regulation in neural development.

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Crossref · 10.1111/j.1460-9568.2005.03978.x

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55 of 55 references verified0 citation errors · 0 not checkable

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  • Decrease in miR-23 levels can lead to accumulation of Hes1 during retinal acid-induced neural differentiation in NT2 cells, which in turn affects neural differentiation.

    “The decrease in miR-23 levels can lead to the accumulation of Hes1 during retinal acid-induced neural differentiation in NT2 cells, which in turn affects neural differentiation.”
  • miR-23 has the ability to affect neural differentiation.

    “miR-23 has the ability to affect neural differentiation.”
  • Hes1 is also directly targeted by miR-124, and knockdown of miR-124 levels mediated by locked nucleic acids is similar to the effect of miR-23 inhibition.

    “Hes1 is also directly targeted by miR-124, and the knockdown of miR-124 levels mediated by locked nucleic acids is similar to the effect of miR-23 inhibition.”
  • Regulation of neural development by miR-23 is probably achieved through the combined action of other miRNAs.

    “It indicates that the regulation of neural development by miR-23 is probably achieved through the combined action of other miRNAs.”
  • Hes1 is an authentic target of miR-23.

    “A basic helix-loop-helix transcriptional repressor, named Hes1, is an authentic target of miR-23.”

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Authors
Smirnova, L., Gräfe, A., Seiler, A., Schumacher, S., Nitsch, R., & Wulczyn, F. G.
Affiliations
  • Charité – Universitätsmedizin Berlin (DE)
  • German Federal Institute for Risk Assessment (BfR) (DE)
Corresponding author
Wulczyn, F. Gregory
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2005-03
Volume
21
Issue
6
Pages
1469-1477
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2116641097
Cited by
707
References
55
Citations by year
2026: 5 · 2025: 11 · 2024: 13 · 2023: 23 · 2022: 22 · 2021: 34 · 2020: 27 · 2019: 29 · 2018: 30 · 2017: 20 · 2016: 37 · 2015: 51 · 2014: 50 · 2013: 52 · 2012: 54
FWCI
11.74
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • OpenAgrar (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
microRNA, brain development, miRNA expression regulation, astrocytes, embryonic neurons, miR-124, miR-128, miR-125, miR-23, miR-26, miR-29, miR-9, embryonic stem cell differentiation, temporal gene expression
MeSH terms
Animals, Animals, Newborn, Cell Differentiation, Cell Line, Neurons, Stem Cells, Gene Expression Regulation, Developmental, MicroRNAs, Mice

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