Evidence map›Paper›PMID 23493293›Full record

ArticleInvestigative ophthalmology & visual science2013

Effect of growth factors on the proliferation and gene expression of human meibomian gland epithelial cells.

Shaohui Liu, Wendy R Kam, Juan Ding, Mark P Hatton, David A Sullivan

Open access · hybridAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
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  4. A novel co-culture model of human prostate epithelial and stromal cells for androgenic and antiandrogenic screening.Toxicology in vitro : an international journal published in association with BIBRA · 2023
    Article
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  14. Meibomian glands, meibum, and meibogenesis.Experimental eye research · 2017
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Effects of Insulin and High Glucose on Human Meibomian Gland Epithelial Cells.Investigative ophthalmology & visual science · 2015
    Article
  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

5 authors at 2 institutions in 1 country.

Shaohui LiuSchepens Eye Research Institute, Boston, Massachusetts 02114, USA.
Wendy R Kam
Juan Ding
Mark P Hatton
David A Sullivan
Massachusetts Eye and Ear Infirmary · USSmith-Kettlewell Eye Research Institute · US

Funding

Sex, sex steroids and dry eye syndromesR01EY005612 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI SULLIVAN, DAVID A. · 1985 to 2014
$9.0M
NEI NIH HHS EY05612NEI NIH HHS R01 EY005612
6 · The paper itself

Abstract

purposeWe hypothesize that growth factors, including epidermal growth factor (EGF) and bovine pituitary extract (BPE), induce proliferation, but not differentiation (e.g., lipid accumulation), of human meibomian gland epithelial cells. We also hypothesize that these actions involve a significant upregulation of genes linked to cell cycle processes, and a significant downregulation of genes associated with differentiation. Our objective was to test these hypotheses.

methodsImmortalized human meibomian gland and conjunctival epithelial cells were cultured for varying time periods in the presence or absence of EGF, BPE, EGF + BPE, or serum, followed by cell counting, neutral lipid staining, or RNA isolation for molecular biological procedures.

resultsOur studies show that growth factors stimulate a significant, time-dependent proliferation of human meibomian gland epithelial cells. These effects are associated with a significant upregulation of genes linked to cell cycle, DNA replication, ribosomes, and translation, and a significant decrease in those related to cell differentiation, tissue development, lipid metabolic processes, and peroxisome proliferator-activated receptor signaling. Serum-induced differentiation, but not growth factor-related proliferation, elicits a pronounced lipid accumulation in human meibomian gland epithelial cells. This lipogenic response is unique, and is not duplicated by human conjunctival epithelial cells.

conclusionsOur results demonstrate that EGF and BPE stimulate human meibomian gland epithelial cells to proliferate. Further, our findings show that action is associated with an upregulation of cell cycle and translation ontologies, and a downregulation of genetic pathways linked to differentiation and lipid biosynthesis.

Indexed as

Cell CountCell CycleCell DifferentiationCell ProliferationCells, CulturedConjunctivaEpidermal Growth FactorEpithelial CellsGene Expression RegulationHumansLipid MetabolismMeibomian GlandsPituitary GlandReal-Time Polymerase Chain ReactionTime FactorsTissue ExtractsEpidermal Growth FactorTissue Extracts

Identifiers

PMID23493293
PMCPMC3626315
OpenAlexW1986422289

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.