Evidence map›Paper›PMID 25260588›Full record

ArticleNucleic acids research2014

A portable BRCA1-HAC (human artificial chromosome) module for analysis of BRCA1 tumor suppressor function.

Artem V Kononenko, Ruchi Bansal, Nicholas C O Lee, Brenda R Grimes, Hiroshi Masumoto, William C Earnshaw, Vladimir Larionov, Natalay Kouprina

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

29 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. TAR Cloning: Perspectives for Functional Genomics, Biomedicine, and Biotechnology.Molecular therapy. Methods & clinical development · 2019
    Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Core Concept: Human artificial chromosomes offer insights, therapeutic possibilities, and challenges.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  18. Article
  19. Review
  20. Article
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

8 authors at 5 institutions in 3 countries.

Artem V KononenkoDevelopmental Therapeutics Branch, National Cancer Institute, Bethesda, MD 20892, USA.
Ruchi BansalDepartment of Medical and Molecular Genetics, Indiana University School of Medicine, Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN 46202, USA.
Nicholas C O LeeDevelopmental Therapeutics Branch, National Cancer Institute, Bethesda, MD 20892, USA.
Brenda R GrimesDepartment of Medical and Molecular Genetics, Indiana University School of Medicine, Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN 46202, USA.
Hiroshi MasumotoLaboratory of Cell Engineering, Department of Frontier Research, Kazusa DNA, Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba 292-0818, Japan.
William C EarnshawWellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh EH9 3JR, Scotland.
Vladimir LarionovDevelopmental Therapeutics Branch, National Cancer Institute, Bethesda, MD 20892, USA.
Natalay KouprinaDevelopmental Therapeutics Branch, National Cancer Institute, Bethesda, MD 20892, USA kouprinn@mail.nih.gov.
National Cancer Institute · USIndiana Cancer Consortium · USIndiana University Health · USKazusa DNA Research Institute · JPUniversity of Edinburgh · GB

Funding

LRBGE Optical Microscopy CoreZICBC011574 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI KARPOVA, TATIANA · 2014 to 2025
$7.4M
Intramural NIH HHSWellcome Trust 073915Wellcome Trust 092076
6 · The paper itself

Abstract

BRCA1 is involved in many disparate cellular functions, including DNA damage repair, cell-cycle checkpoint activation, gene transcriptional regulation, DNA replication, centrosome function and others. The majority of evidence strongly favors the maintenance of genomic integrity as a principal tumor suppressor activity of BRCA1. At the same time some functional aspects of BRCA1 are not fully understood. Here, a HAC (human artificial chromosome) module with a regulated centromere was constructed for delivery and expression of the 90 kb genomic copy of the BRCA1 gene into BRCA1-deficient human cells. A battery of functional tests was carried out to demonstrate functionality of the exogenous BRCA1. In separate experiments, we investigated the role of BRCA1 in maintenance of heterochromatin integrity within a human functional kinetochore. We demonstrated that BRCA1 deficiency results in a specific activation of transcription of higher-order alpha-satellite repeats (HORs) assembled into heterochromatin domains flanking the kinetochore. At the same time no detectable elevation of transcription was observed within HORs assembled into centrochromatin domains. Thus, we demonstrated a link between BRCA1 deficiency and kinetochore dysfunction and extended previous observations that BRCA1 is required to silence transcription in heterochromatin in specific genomic loci. This supports the hypothesis that epigenetic alterations of the kinetochore initiated in the absence of BRCA1 may contribute to cellular transformation.

Indexed as

Chromosomes, Artificial, HumanGenes, BRCA1AnimalsBRCA1 ProteinCell Line, TumorCells, CulturedCHO CellsCricetinaeCricetulusHeterochromatinHumansKinetochoresSwineBRCA1 ProteinHeterochromatin

Identifiers

PMID25260588
PMCPMC4245969
OpenAlexW2113080053

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.