Evidence map›Paper›PMID 24523953›Full record

ArticleAvicenna journal of medical biotechnology2014

Isolation and partial characterization of human amniotic epithelial cells: the effect of trypsin.

Meraj Tabatabaei, Nariman Mosaffa, Shohreh Nikoo, Mahmood Bozorgmehr, Roya Ghods, Somaieh Kazemnejad, Simin Rezania, Bahareh Keshavarzi, Soheila Arefi, Fahimeh Ramezani-Tehrani and 2 more

Open access · greenAbstract read
In one paragraph

Article in Avicenna journal of medical biotechnology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 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

12 authors at 5 institutions in 2 countries.

Meraj TabatabaeiDepartment of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Nariman MosaffaDepartment of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Shohreh NikooReproductive Immunology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
Mahmood BozorgmehrNanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
Roya GhodsMonoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
Somaieh KazemnejadReproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
Simin RezaniaInstitute of Biophysics, Medical University of Graz, Austria.
Bahareh KeshavarziDepartment of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Soheila ArefiReproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
Fahimeh Ramezani-TehraniReproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Ebrahim MirzadeganReproductive Immunology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
Amir-Hassan ZarnaniNanobiotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran ; Immunology Research Center, Iran University of Medical Sciences, Tehran, Iran.
Academic Center for Education, Culture and Research · IRShahid Beheshti University of Medical Sciences · IRBiotechnology Research Center · IRMedical University of Graz · ATResearch Institute for Endocrine Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite the extensive information available in the literature, cell surface marker signature of human Amniotic Epithelial Cells (hAECs) remains controversial. The aim of the present study was to characterize immunophenotypic features, proliferative capacity and immunogenicity of hAECs. We also tested whether expression of some cell surface markers is influenced by the type of trypsin used for tissue digestion.

methodsSingle cell suspensions of amniotic membranes from four human placentas were isolated by enzymatic digestion and expression of CD9, CD10, CD29, CD34, CD38, CD44, CD45, CD73, CD105, CD133, HLA-I, HLA-DR, HLA-G, SSEA-4, STRO-1 and OCT-4 was then evaluated by flow cytometry. The differential impact of four trypsin types on the yield and expression of CD105 and HLA-I was also determined. The proliferative capacity of cultured hAECs was assessed and compared in the presence and absence of Epidermal Growth Factor (EGF). To test their immunogenicity, hAECs were injected into Balb/c mice and the reactivity of hyperimmunized sera was examined by immunofluorescence staining.

resultsNearly all purified cells expressed mesenchymal markers, CD9, CD10, CD29, and CD73 and the embryonic marker, SSEA-4. A large proportion of the cells also expressed STRO-1 and OCT-4. The purified cells also expressed HLA-G and HLA-I. A very small proportion of hAECs expressed CD34, CD38, CD44, CD133 and HLA-DR. The type of trypsin used for enzymatic digestion affected both the percentage and expression of HLA-I and CD105. hAECs revealed substantial proliferative capacity only when cultured in the medium supplemented with EGF. These cells were shown to be capable of inducing high amounts of anti-donor antibodies.

conclusionHere we provided evidence that hAECs are immunogenic cells with high level of HLA-I expression. Furthermore, this work highlighted the impact of isolation procedure on the immunophenotype of hAEC.

Indexed as

Cell proliferationEpithelial cellsImmunophenotypingPlacentaStem cellTrypsin

Identifiers

PMID24523953
PMCPMC3895574
OpenAlexW2128508184

What OpenQuestion holds

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LicenceCC BY-NC
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.