Evidence map›Paper›PMID 23613587›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Fundamental differences in endoreplication in mammals and Drosophila revealed by analysis of endocycling and endomitotic cells.

Noa Sher, Jessica R Von Stetina, George W Bell, Shinobu Matsuura, Katya Ravid, Terry L Orr-Weaver

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
13.4field-weighted citation impact, top 1% 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

47 citing papers in PubMed, 67 citations in OpenAlex.

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  7. Effects of oxycodone on placental lineages: Evidence from the transcriptome profile of mouse trophoblast giant cells.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  8. Postsynaptic BMP signaling regulates myonuclear properties inbioRxiv : the preprint server for biology · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Noa SherWhitehead Institute, Cambridge, MA 02142, USA.
Jessica R Von Stetina
George W Bell
Shinobu Matsuura
Katya Ravid
Terry L Orr-Weaver
Whitehead Institute for Biomedical Research · USBoston University · US

Funding

VIRUS PRODUCTION COREP30CA014051 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI MATTHEW G. VANDER HEIDEN · 1985 to 2026
$93.9M
Mechanisms Regulating Megakaryocyte EndomitosisR01HL080442 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI RAVID, KATYA · 2006 to 2015
$3.6M
Training Program in Cardiovascular Biology: Pre-DoctoralT32HL007969 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI RAVID, KATYA · 2003 to 2019
$3.2M
NCI NIH HHS P30 CA014051NHLBI NIH HHS HL80442NHLBI NIH HHS R01 HL080442NHLBI NIH HHS T32 HL007969
6 · The paper itself

Abstract

Throughout the plant and animal kingdoms specific cell types become polyploid, increasing their DNA content to attain a large cell size. In mammals, megakaryocytes (MKs) become polyploid before fragmenting into platelets. The mammalian trophoblast giant cells (TGCs) exploit their size to form a barrier between the maternal and embryonic tissues. The mechanism of polyploidization has been investigated extensively in Drosophila, in which a modified cell cycle--the endocycle, consisting solely of alternating S and gap phases--produces polyploid tissues. During S phase in the Drosophila endocycle, heterochromatin and specific euchromatic regions are underreplicated and reduced in copy number. Here we investigate the properties of polyploidization in murine MKs and TGCs. We induced differentiation of primary MKs and directly microdissected TGCs from embryonic day 9.5 implantation sites. The copy number across the genome was analyzed by array-based comparative genome hybridization. In striking contrast to Drosophila, the genome was uniformly and integrally duplicated in both MKs and TGCs. This was true even for heterochromatic regions analyzed by quantitative PCR. Underreplication of specific regions in polyploid cells is proposed to be due to a slower S phase, resulting from low expression of S-phase genes, causing failure to duplicate late replicating genomic intervals. We defined the transcriptome of TGCs and found robust expression of S-phase genes. Similarly, S-phase gene expression is not repressed in MKs, providing an explanation for the distinct endoreplication parameters compared with Drosophila. Consistent with TGCs endocycling rather than undergoing endomitosis, they have low expression of M-phase genes.

Indexed as

PolyploidyAnimalsCell DifferentiationComparative Genomic HybridizationDNA Copy Number VariationsDNA PrimersGene Expression ProfilingGene Expression RegulationGiant CellsHeterochromatinMegakaryocytesMiceMicrodissectionReal-Time Polymerase Chain ReactionS PhaseTrophoblastsDNA PrimersHeterochromatinDNA replicationpolytene

Identifiers

PMID23613587
PMCPMC3677442
OpenAlexW1965599207

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.