Evidence map›Paper›PMID 30404662›Full record

ArticleGenome biology2018

LaminA/C regulates epigenetic and chromatin architecture changes upon aging of hematopoietic stem cells.

Ani Grigoryan, Novella Guidi, Katharina Senger, Thomas Liehr, Karin Soller, Gina Marka, Angelika Vollmer, Yolanda Markaki, Heinrich Leonhardt, Christian Buske and 6 more

Open access · goldAbstract read
In one paragraph

Article in Genome biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
4.4field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 108 citations in OpenAlex.

  1. Review
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  8. Sabotaged Integral HSC Heterogeneity Underlies Essential Thrombocythemia Development.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 6 institutions in 3 countries.

Ani GrigoryanInstitute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081, Ulm, Germany.
Novella GuidiInstitute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081, Ulm, Germany.
Katharina SengerInstitute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081, Ulm, Germany.
Thomas LiehrInstitute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Kollegiengasse 10, 07743, Jena, Germany.
Karin SollerInstitute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081, Ulm, Germany.
Gina MarkaInstitute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081, Ulm, Germany.
Angelika VollmerInstitute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081, Ulm, Germany.
Yolanda MarkakiDepartment of Biology II and Center for Integrated Protein Science Munich (CIPSM), Ludwig Maximilians University Munich, Großhaderner Strasse 2, 82152, Planegg-Martinsried, Germany.
Heinrich LeonhardtDepartment of Biology II and Center for Integrated Protein Science Munich (CIPSM), Ludwig Maximilians University Munich, Großhaderner Strasse 2, 82152, Planegg-Martinsried, Germany.
Christian BuskeInstitute of Experimental Cancer Research, Comprehensive Cancer Center Ulm, University Hospital Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
Daniel B LipkaRegulation of Cellular Differentiation Group, INF280, 69120, Heidelberg, Germany.
Christoph PlassDivision of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), INF280, 69120, Heidelberg, Germany.
Yi ZhengDivision of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, OH, USA.
Medhanie A MulawInstitute of Experimental Cancer Research, Comprehensive Cancer Center Ulm, University Hospital Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
Hartmut GeigerInstitute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081, Ulm, Germany.
Maria Carolina FlorianInstitute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081, Ulm, Germany. carolina.florian@uni-ulm.de.ORCID 0000-0002-5791-1310
Universität Ulm · DECenter for Integrated Protein Science Munich · DECincinnati Children's Hospital Medical Center · USGerman Cancer Research Center · DEUniversity Hospital Ulm · DEJena University Hospital · DE

Funding

Cdc42, hematopoietic stem cell polarity, and cell fateR01DK104814 · NIDDK · CINCINNATI CHILDRENS HOSP MED CTR · PI ZHENG, YI · 2016 to 2019
$2.0M
Lineage Determination and Tissue HomeOstasis in the aged Hematopoietic SystemR01AG040118 · NIA · CINCINNATI CHILDRENS HOSP MED CTR · PI GEIGER, HARTMUT, ZHENG, YI · 2011 to 2015
$1.7M
NIA NIH HHS R01 AG040118NIDDK NIH HHS R01 DK104814
6 · The paper itself

Abstract

backgroundThe decline of hematopoietic stem cell (HSC) function upon aging contributes to aging-associated immune remodeling and leukemia pathogenesis. Aged HSCs show changes to their epigenome, such as alterations in DNA methylation and histone methylation and acetylation landscapes. We previously showed a correlation between high Cdc42 activity in aged HSCs and the loss of intranuclear epigenetic polarity, or epipolarity, as indicated by the specific distribution of H4K16ac.

resultsHere, we show that not all histone modifications display a polar localization and that a reduction in H4K16ac amount and loss of epipolarity are specific to aged HSCs. Increasing the levels of H4K16ac is not sufficient to restore polarity in aged HSCs and the restoration of HSC function. The changes in H4K16ac upon aging and rejuvenation of HSCs are correlated with a change in chromosome 11 architecture and alterations in nuclear volume and shape. Surprisingly, by taking advantage of knockout mouse models, we demonstrate that increased Cdc42 activity levels correlate with the repression of the nuclear envelope protein LaminA/C, which controls chromosome 11 distribution, H4K16ac polarity, and nuclear volume and shape in aged HSCs.

conclusionsCollectively, our data show that chromatin architecture changes in aged stem cells are reversible by decreasing the levels of Cdc42 activity, revealing an unanticipated way to pharmacologically target LaminA/C expression and revert alterations of the epigenetic architecture in aged HSCs.

Indexed as

Cellular SenescenceChromatinEpigenesis, GeneticAnimalscdc42 GTP-Binding ProteinDNA MethylationFemaleHematopoietic Stem CellsHistonesLamin Type AMiceMice, Knockoutcdc42 GTP-Binding ProteinCdc42 protein, mouseChromatinHistoneslamin CLamin Type AAgingChromatin architectureChromosome 11Hematopoietic stem cell (HSC)LaminA/C

Identifiers

PMID30404662
PMCPMC6223039
OpenAlexW2899733624

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.