Evidence map›Paper›PMID 21211785›Full record

ArticleCell stem cell2011

Dynamic changes in the copy number of pluripotency and cell proliferation genes in human ESCs and iPSCs during reprogramming and time in culture.

Louise C Laurent, Igor Ulitsky, Ileana Slavin, Ha Tran, Andrew Schork, Robert Morey, Candace Lynch, Julie V Harness, Sunray Lee, Maria J Barrero and 15 more

Abstract read
In one paragraph

Article in Cell stem cell, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 452 papers.

0numbers the graph read from it
0cells of the map it votes in
452citing papers in PubMed
–field-weighted citation impact
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

452 citing papers in PubMed.

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  19. Genomic map of the functionally extinct northern white rhinoceros (Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  20. Article

392 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

25 authors.

Louise C LaurentDepartment of Reproductive Medicine, University of California, San Diego, La Jolla, CA 92093, USA. llaurent@ucsd.edu
Igor Ulitsky
Ileana Slavin
Ha Tran
Andrew Schork
Robert Morey
Candace Lynch
Julie V Harness
Sunray Lee
Maria J Barrero
Sherman Ku
Marina Martynova
Ruslan Semechkin
Vasiliy Galat
Joel Gottesfeld
Juan Carlos Izpisua Belmonte
Chuck Murry
Hans S Keirstead
Hyun-Sook Park
Uli Schmidt
Andrew L Laslett
Franz-Josef Muller
Caroline M Nievergelt
Ron Shamir
Jeanne F Loring

Funding

Vascularization and Growth of Human Myocardial GraftsP01HL094374 · NHLBI · UNIVERSITY OF WASHINGTON · PI MURRY, CHARLES E · 2010 to 2014
$14.5M
Engineered Cardiac Morphogenesis-Stem Cells and ScaffoldsR01HL064387 · NHLBI · UNIVERSITY OF WASHINGTON · PI RATNER, BUDDY D · 2006 to 2010
$10.2M
UC San Diego Womens Reproductive Health Research ProgramK12HD001259 · NICHD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CYNTHIA GYAMFI-BANNERMAN · 1999 to 2026
$9.1M
Cell-Based Cardiac RepairR01HL084642 · NHLBI · UNIVERSITY OF WASHINGTON · PI MURRY, CHARLES E · 2007 to 2014
$4.9M
Mechanisms of Gene Silencing of Friedreich's AtaxiaR01NS062856 · NINDS · SCRIPPS RESEARCH INSTITUTE, THE · PI GOTTESFELD, JOEL M. · 2009 to 2018
$4.1M
Identification of Altered Molecular Signature of Down Syndrome iPS CellsRC1HL100168 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI CRISPINO, JOHN D, GALAT, VASIL V · 2009 to 2010
$999k
Autism iPSCs for Studying Function and Dysfunction in Human Neural DevelopmentR21MH087925 · NIMH · SCRIPPS RESEARCH INSTITUTE, THE · PI LORING, JEANNE F · 2009 to 2010
$572k
NHLBI NIH HHS P01 HL094374NHLBI NIH HHS R01 HL064387NHLBI NIH HHS R01 HL084642NHLBI NIH HHS R01 HL64387NHLBI NIH HHS RC1 HL100168NHLBI NIH HHS RC1HL100168NICHD NIH HHS K12 HD001259NIGMS NIH HHS P01 GM081719NIMH NIH HHS R21 MH087925NIMH NIH HHS R21MH087925NINDS NIH HHS R01 NS062856
6 · The paper itself

Abstract

Genomic stability is critical for the clinical use of human embryonic and induced pluripotent stem cells. We performed high-resolution SNP (single-nucleotide polymorphism) analysis on 186 pluripotent and 119 nonpluripotent samples. We report a higher frequency of subchromosomal copy number variations in pluripotent samples compared to nonpluripotent samples, with variations enriched in specific genomic regions. The distribution of these variations differed between hESCs and hiPSCs, characterized by large numbers of duplications found in a few hESC samples and moderate numbers of deletions distributed across many hiPSC samples. For hiPSCs, the reprogramming process was associated with deletions of tumor-suppressor genes, whereas time in culture was associated with duplications of oncogenic genes. We also observed duplications that arose during a differentiation protocol. Our results illustrate the dynamic nature of genomic abnormalities in pluripotent stem cells and the need for frequent genomic monitoring to assure phenotypic stability and clinical safety.

Indexed as

Cell ProliferationCellular ReprogrammingGene DosageCell DifferentiationCells, CulturedEmbryonic Stem CellsGenome, HumanHumansInduced Pluripotent Stem CellsPhenotypePluripotent Stem Cells

Identifiers

PMID21211785
PMCPMC3043464

What OpenQuestion holds

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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.