Evidence map›Paper›PMID 26720151›Full record

ArticlePloS one2015

Markers of Pluripotency in Human Amniotic Epithelial Cells and Their Differentiation to Progenitor of Cortical Neurons.

Irma Lydia García-Castro, Guadalupe García-López, Daniela Ávila-González, Héctor Flores-Herrera, Anayansi Molina-Hernández, Wendy Portillo, Eva Ramón-Gallegos, Néstor Fabián Díaz

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. August in focus in HCB.Histochemistry and cell biology · 2025
    Article
  4. Article
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  6. Amniotic miracle: Investigating the unique development and applications of amniotic membrane in wound healing.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2024
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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

8 authors at 2 institutions in 1 country.

Irma Lydia García-CastroLaboratorio de Citopatología Ambiental, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Campus Zacatenco, Unidad Profesional "Adolfo López Mateos", México D.F., México.
Guadalupe García-LópezDepartamento de Biología Celular, Instituto Nacional de Perinatología, Montes Urales 800, Col. Lomas Virreyes, CP 11000, México D.F., México.
Daniela Ávila-GonzálezDepartamento de Biología Celular, Instituto Nacional de Perinatología, Montes Urales 800, Col. Lomas Virreyes, CP 11000, México D.F., México.
Héctor Flores-HerreraDepartamento de Inmuno-Bioquímica, Instituto Nacional de Perinatología, Montes Urales 800, Col. Lomas Virreyes, CP 11000, México D.F., México.
Anayansi Molina-HernándezDepartamento de Biología Celular, Instituto Nacional de Perinatología, Montes Urales 800, Col. Lomas Virreyes, CP 11000, México D.F., México.
Wendy PortilloDepartamento de Neurobiología Conductal y Cognitiva, Instituto de Neurobiología, UNAM, Querétaro, México.
Eva Ramón-GallegosLaboratorio de Citopatología Ambiental, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Campus Zacatenco, Unidad Profesional "Adolfo López Mateos", México D.F., México.
Néstor Fabián DíazDepartamento de Biología Celular, Instituto Nacional de Perinatología, Montes Urales 800, Col. Lomas Virreyes, CP 11000, México D.F., México.
Instituto Nacional de Perinatología · MXInstituto Politécnico Nacional · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human pluripotent stem cells (hPSC) have promise for regenerative medicine due to their auto-renovation and differentiation capacities. Nevertheless, there are several ethical and methodological issues about these cells that have not been resolved. Human amniotic epithelial cells (hAEC) have been proposed as source of pluripotent stem cells. Several groups have studied hAEC but have reported inconsistencies about their pluripotency properties. The aim of the present study was the in vitro characterization of hAEC collected from a Mexican population in order to identify transcription factors involved in the pluripotency circuitry and to determine their epigenetic state. Finally, we evaluated if these cells differentiate to cortical progenitors. We analyzed qualitatively and quantitatively the expression of the transcription factors of pluripotency (OCT4, SOX2, NANOG, KLF4 and REX1) by RT-PCR and RT-qPCR in hAEC. Also, we determined the presence of OCT4, SOX2, NANOG, SSEA3, SSEA4, TRA-1-60, E-cadherin, KLF4, TFE3 as well as the proliferation and epigenetic state by immunocytochemistry of the cells. Finally, hAEC were differentiated towards cortical progenitors using a protocol of two stages. Here we show that hAEC, obtained from a Mexican population and cultured in vitro (P0-P3), maintained the expression of several markers strongly involved in pluripotency maintenance (OCT4, SOX2, NANOG, TFE3, KLF4, SSEA3, SSEA4, TRA-1-60 and E-cadherin). Finally, when hAEC were treated with growth factors and small molecules, they expressed markers characteristic of cortical progenitors (TBR2, OTX2, NeuN and β-III-tubulin). Our results demonstrated that hAEC express naïve pluripotent markers (KLF4, REX1 and TFE3) as well as the cortical neuron phenotype after differentiation. This highlights the need for further investigation of hAEC as a possible source of hPSC.

Indexed as

AmnionBiomarkersCell DifferentiationCell ProliferationCells, CulturedEpigenesis, GeneticEpithelial CellsHumansIntercellular Signaling Peptides and ProteinsKruppel-Like Factor 4NeuronsPluripotent Stem CellsTranscription FactorsBiomarkersIntercellular Signaling Peptides and ProteinsKLF4 protein, humanKruppel-Like Factor 4Transcription Factors

Identifiers

PMID26720151
PMCPMC4697857
OpenAlexW2206117476

What OpenQuestion holds

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LicenceCC BY
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.