Evidence map›Paper›PMID 23661086›Full record

ArticleIn vitro cellular & developmental biology. Animal2013

SPARC is involved in the maintenance of mitotically inactivated mouse embryonic fibroblast cells.

Jun Yeon Won, Young Jin Lee, Seung-Joon Lee, Woo Jin Kim, Seon-Sook Han, Se-Ran Yang, Heung-Myong Woo, Sung-Min Park, Hyang-Ah Lee, Seok-Ho Hong

Abstract read
PubMed Publisher
In one paragraph

Article in In vitro cellular & developmental biology. Animal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Jun Yeon WonDepartment of Otolaryngology, School of Medicine, Kangwon National University, Chuncheon, South Korea.
Young Jin Lee
Seung-Joon Lee
Woo Jin Kim
Seon-Sook Han
Se-Ran Yang
Heung-Myong Woo
Sung-Min Park
Hyang-Ah Lee
Seok-Ho Hong

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitotically inactivated feeder cells such as mouse embryonic fibroblast (MEFs) cells have been widely applied for physical and physiological support in the pluripotency maintenance of human pluripotent stem cells (hPSCs). However, accurate supporting mechanism or factors of feeder cells are poorly understood. Here, we isolated differentially expressed genes between wild-type MEFs and mitotically inactivated MEFs (miMEFs) by employing annealing control primer-based GeneFishing polymerase chain reaction. We identified a secreted protein acidic cysteine-rich glycoprotein (SPARC) gene that is upregulated in miMEFs. Suppression of SPARC expression in miMEFs using small interference RNA (siRNA) displayed gradual detachment of miMEFs. Furthermore, we found a significant reduction of OCT4- and SSEA3-positive hPS cell population maintained on SPARC siRNA-miMEFs compared to on miMEFs by flow cytometrical analysis. These findings suggest that SPARC plays a critical role in the maintenance of miMEFs without loss of cell number and might be a key component for supporting the culture of hPSCs.

Indexed as

AnimalsAntigens, Tumor-Associated, CarbohydrateCell Culture TechniquesCell DifferentiationCulture Media, ConditionedEmbryonic Stem CellsFibroblastsHumansMiceMitosisOctamer Transcription Factor-3OsteonectinStage-Specific Embryonic AntigensAntigens, Tumor-Associated, CarbohydrateCulture Media, ConditionedOctamer Transcription Factor-3OsteonectinPou5f1 protein, mouseSPARC protein, mousestage-specific embryonic antigen-3Stage-Specific Embryonic Antigens

Identifiers

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.