Cited by 97Nuclear Structure and FunctionGenomics and Chromatin DynamicsSkin and Cellular Biology Research

The role of lamin B1 for the maintenance of nuclear structure and function

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Camps, Jordi, Erdos, Michael R, Ried, Thomas·2015·Nucleus

Abstract

Lamins constitute an integral structural component of the nuclear lamina. However, their impact on the structure and stability of chromosome territories, and on the regulation of gene expression is explored to a lesser extent. By 3D-FISH, Camps and colleagues showed that lamin B1 (LMNB1) is required for proper chromosome condensation in interphase nuclei, and deficiency of LMNB1 triggers the relocation of the epigenetic mark of facultative heterochromatin, H3K27me3, toward the interior of the nucleus. Additionally, LMNB1 repression slowed cellular growth due to S-phase delays and increased genomic instability. Finally, silencing of LMNB1 resulted in enlarged nuclear speckles and in extensive changes in alternative splicing of multiple genes. Altogether, the data suggest a central role of LMNB1 for the condensation of chromosome territories, for the distribution of heterochromatin, and for the regulation of gene expression and splicing.

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Crossref · 10.1080/19491034.2014.1003510

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Authors
Camps, J., Erdos, M. R., & Ried, T.
Affiliations
  • Hospital Clínic de Barcelona (ES)
  • National Institutes of Health (US)
Corresponding author
  • Camps, Jordi
  • Ried, Thomas
Venue
Nucleus
Published
2015-01-02
Volume
6
Issue
1
Pages
8-14
ISSN
  • 1949-1034 (ISSN-L)
  • 1949-1042
OpenAlex
W1591236566
Cited by
97
References
37
Citations by year
2026: 9 · 2025: 10 · 2024: 15 · 2023: 11 · 2022: 12 · 2021: 5 · 2020: 9 · 2019: 10 · 2018: 8 · 2017: 5 · 2016: 3
FWCI
0.52
Type
journal article
Language
en
Open access
Locations
  • Nucleus (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Human Genome Research Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Skin and Cellular Biology Research
Keywords
lamin B1, nuclear lamina, chromosome territories, chromosome condensation, interphase nuclei, facultative heterochromatin, H3K27me3, nuclear speckles, alternative splicing, gene expression regulation, genomic instability, S phase delay
MeSH terms
Animals, Chromosomes, DNA Replication, Gene Expression Regulation, Humans, Active Transport, Cell Nucleus, Nuclear Lamina, Lamin Type B

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