Evidence map›Paper›PMID 17495107›Full record

ArticleStem cells (Dayton, Ohio)2007

Human amniotic epithelial cells as novel feeder layers for promoting ex vivo expansion of limbal epithelial progenitor cells.

Ying-Ting Chen, Wei Li, Yasutaka Hayashida, Hua He, Szu-Yu Chen, David Y Tseng, Ahmad Kheirkhah, Scheffer C G Tseng

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Stem cells (Dayton, Ohio), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

33 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
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  11. Article
  12. Review
  13. Article
  14. Article
  15. Feeder Layer Cell Actions and Applications.Tissue engineering. Part B, Reviews · 2015
    Review
  16. Article
  17. Article
  18. Article
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  20. Article
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.

Ying-Ting ChenTissueTech Inc, and Ocular Surface Center, Miami, FL 33173, USA.
Wei Li
Yasutaka Hayashida
Hua He
Szu-Yu Chen
David Y Tseng
Ahmad Kheirkhah
Scheffer C G Tseng

Funding

VITAMIN A AND CONJUNCTIVAL TRANSDIFFERENTIATIONR01EY006819 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI TSENG, SCHEFFER CG · 1986 to 2020
$6.7M
TRANSPLANTATION OF EXPANDED LIMBAL EPITHELIAL STEM CELLSR01EY015735 · NEI · TISSUETECH, INC. · PI TSENG, SCHEFFER C G · 2004 to 2007
$1.2M
NEI NIH HHS EY015735NEI NIH HHS EY06819NEI NIH HHS R01 EY006819NEI NIH HHS R01 EY015735
6 · The paper itself

Abstract

Human amniotic epithelial cells (HAECs) are a unique embryonic cell source that potentially can be used as feeder layers for expanding different types of stem cells. In vivo, HAECs uniformly expressed pan-cytokeratins (pan-CK) and heterogeneously expressed vimentin (Vim). The two phenotypes expressing either pan-CK(+)/Vim(+) or pan-CK(+)/Vim(-) were maintained in serum-free media with high calcium. In contrast, all HAECs became pan-CK(+)/Vim(+) in serum-containing media, which also promoted HAEC proliferation for at least eight passages, especially supplemented with epidermal growth factor and insulin. Mitomycin C-arrested HAEC feeder layers were more effective in promoting clonal growth of human limbal epithelial progenitors than conventional 3T3 murine feeder layers. Cells in HAEC-supported clones were uniformly smaller, sustained more proliferation, and expressed less CK12 and connexin 43 but higher levels of stem cell-associated markers such as p63, Musashi-1, and ATP-binding cassette subfamily G2 than those of 3T3-supported clones. Subculturing of clonally expanded limbal progenitors from HAEC feeder layers, but not from 3T3 feeder layers, gave rise to uniformly p63-positive epithelial progenitor cells as well as nestin-positive neuronal-like progenitors. Collectively, these results indicated that HAECs can be used as a human feeder layer equivalent for more effective ex vivo expansion of adult epithelial stem cells from the human limbus. Disclosure of potential conflicts of interest is found at the end of this article.

Indexed as

Cell ProliferationAmnionAnimalsClone CellsCoculture TechniquesEpithelial CellsEpithelium, CornealFemaleHumansLimbus CorneaeMiceNeuronsNIH 3T3 CellsPhenotypePregnancyStem Cells

Identifiers

PMID17495107
PMCPMC3197019

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.