Evidence map›Paper›PMID 32428045›Full record

ArticlePloS one2020

Colon adenocarcinoma-derived cells that express induced-pluripotent stem cell markers possess stem cell function.

Matthew J Munro, Lifeng Peng, Susrutha K Wickremesekera, Swee T Tan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 40% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

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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

4 authors at 3 institutions in 2 countries.

Matthew J MunroGillies McIndoe Research Institute, Wellington, New Zealand.
Lifeng PengSchool of Biological Sciences and Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand.
Susrutha K WickremesekeraGillies McIndoe Research Institute, Wellington, New Zealand.
Swee T TanGillies McIndoe Research Institute, Wellington, New Zealand.ORCID 0000-0002-0695-453X
Victoria University of Wellington · NZThe University of Melbourne · AUWellington Hospital · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsMuch work has been done to find markers of cancer stem cells (CSCs) that distinguish them from the tumor bulk cells and normal cells. Recent CSC research has applied the induced pluripotent stem cell (iPSC) concept. In this study, we investigated the expression of a panel of iPSC markers in primary colon adenocarcinoma (CA)-derived cell lines. MATERIALS AND

methodsExpression of iPSC markers by CA-derived primary cell lines was interrogated using immunocytochemistry, western blotting and RT-qPCR. The stem cell function of these cells was then assessed in vitro using differentiation and tumorsphere assays.

resultsExpression of iPSC markers OCT4, SOX2, NANOG, KLF4 and c-MYC was more widespread in high-grade CA (HGCA) cell lines than low-grade CA (LGCA) cell lines, as demonstrated by western blotting and RT-qPCR. These cells could be induced to differentiate down the three embryonic lineages. Cells derived from HGCA were more capable of forming tumorspheres than those derived from LGCA. EpCAM sorting revealed that a population enriched for EpCAMHigh cells formed larger tumorspheres than EpCAMLow cells. Pluripotency markers, SSEA4 and TRA-1-60, were co-expressed by a small subpopulation of cells that also co-expressed SOX2 in 75% and OCT4 in 50% of the cell lines.

conclusionsCA-derived primary cell lines contain tumorsphere-forming cells which express key pluripotency genes and can differentiate down 3 embryonic lineages, suggesting a pluripotent CSC-like phenotype. There appear to be two iPSC-like subpopulations, one with high EpCAM expression which forms larger tumorspheres than another with low EpCAM expression. Furthermore, these cells can be characterized based on iPSC marker expression, as we have previously demonstrated in the original CA tumor tissues.

Indexed as

AdenocarcinomaBiomarkers, TumorCell DifferentiationCell Line, TumorCellular ReprogrammingColonColonic NeoplasmsDNA-Binding ProteinsGenes, HomeoboxGenes, mycHumansInduced Pluripotent Stem CellsKruppel-Like Factor 4Kruppel-Like Transcription FactorsNanog Homeobox ProteinNeoplastic Stem CellsBiomarkers, TumorDNA-Binding ProteinsKLF4 protein, humanKruppel-Like Factor 4Kruppel-Like Transcription FactorsMYCBP protein, humanNanog Homeobox ProteinNANOG protein, humanOctamer Transcription Factor-3POU5F1 protein, humanSOX2 protein, humanSOXB1 Transcription FactorsTranscription Factors

Identifiers

PMID32428045
PMCPMC7236985
OpenAlexW3027658893

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.