Evidence map›Paper›PMID 24887492›Full record

ArticlePloS one2014

Human umbilical cord-derived mesenchymal stem cells do not undergo malignant transformation during long-term culturing in serum-free medium.

Gecai Chen, Aihuan Yue, Zhongbao Ruan, Yigang Yin, RuZhu Wang, Yin Ren, Li Zhu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

36 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
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  9. Umbilical cord mesenchymal stromal cells-from bench to bedside.Frontiers in cell and developmental biology · 2022
    Review
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  11. Article
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  17. Differentiation Potential and Tumorigenic Risk of Rat Bone Marrow Stem Cells Are Affected By Long-Term In Vitro ExpansionTurkish journal of haematology : official journal of Turkish Society of Haematology · 2019
    Article
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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

7 authors at 3 institutions in 1 country.

Gecai ChenDepartment of Cardiology, Taizhou People's Hospital, Taizhou, Jiangsu province, China.
Aihuan YueJiangsu Beike Bio-Technology Co., Ltd, Taizhou, Jiangsu province, China.
Zhongbao RuanDepartment of Cardiology, Taizhou People's Hospital, Taizhou, Jiangsu province, China.
Yigang YinDepartment of Cardiology, Taizhou People's Hospital, Taizhou, Jiangsu province, China.
RuZhu WangDepartment of Cardiology, Taizhou People's Hospital, Taizhou, Jiangsu province, China.
Yin RenDepartment of Cardiology, Taizhou People's Hospital, Taizhou, Jiangsu province, China.
Li ZhuDepartment of Cardiology, Taizhou People's Hospital, Taizhou, Jiangsu province, China.
Nantong University · CNTaizhou People's Hospital · CNBeike Biotechnology (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHuman umbilical cord-derived mesenchymal stem cells (hUC-MSCs) are in the foreground as a preferable application for treating diseases. However, the safety of hUC-MSCs after long-term culturing in vitro in serum-free medium remains unclear.

methodshUC-MSCs were separated by adherent tissue culture. hUC-MSCs were cultured in serum-free MesenCult-XF medium and FBS-bases DMEM complete medium. At the 1st, 3rd, 5th, 8th, 10th, and 15th passage, the differentiation of MSCs into osteogenic, chondrogenic, and adipogenic cells was detected, and MTT, surface antigens were measured. Tumorigenicity was analyzed at the 15th passage. Conventional karyotyping was performed at passage 0, 8, and 15. The telomerase activity of hUC-MSCs at passage 1-15 was analyzed.

resultsFlow cytometry analysis showed that very high expression was detected for CD105, CD73, and CD90 and very low expression for CD45, CD34, CD14, CD79a, and HLA-DR. MSCs could differentiate into osteocytes, chondrocytes, and adipocytes in vitro. There was no obvious chromosome elimination, displacement, or chromosomal imbalance as determined from the guidelines of the International System for Human Cytogenetic Nomenclature. Telomerase activity was down-regulated significantly when the culture time was prolonged. Further, no tumors formed in rats injected with hUC-MSCs (P15) cultured in serum-free and in serum-containing conditions.

conclusionOur data showed that hUC-MSCs met the International Society for Cellular Therapy standards for conditions of long-term in vitro culturing at P15. Since hUC-MSCs can be safely expanded in vitro and are not susceptible to malignant transformation in serum-free medium, these cells are suitable for cell therapy.

Indexed as

Cell Transformation, NeoplasticCells, CulturedCulture Media, Serum-FreeFlow CytometryHumansImmunophenotypingKaryotypingMesenchymal Stem CellsUmbilical CordCulture Media, Serum-Free

Identifiers

PMID24887492
PMCPMC4041760
OpenAlexW2046828222

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.