Evidence map›Paper›PMID 18989386›Full record

ArticleMolecular vision2008

Preferential gene expression in the limbus of the vervet monkey.

Zhenhua Ding, Jun Dong, Jason Liu, Sophie X Deng

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-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

21 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Regulation of Limbal Epithelial Stem Cells: Importance of the Niche.International journal of molecular sciences · 2021
    Review
  4. Review
  5. Article
  6. Article
  7. Limbal stem cell diseases.Experimental eye research · 2021
    Review
  8. Article
  9. An Eye on the Wnt Inhibitory Factor Wif1.Frontiers in cell and developmental biology · 2018
    Review
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  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
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  17. 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

4 authors at 1 institution in 1 country.

Zhenhua DingCornea and Uveitis Division, Jules Stein Eye Institute, University of California, Los Angeles, CA 90095, USA.
Jun Dong
Jason Liu
Sophie X Deng
Cornea Eye Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo elucidate the unique molecular factors and biological processes that are differentially expressed in the limbal stem cell microenvironment by comparing directly to that of its immediate adjacent structures, the cornea and conjunctiva.

methodsTotal RNA was isolated and amplified from the limbus, cornea, and conjunctiva. A gene expression profile of each tissue type was obtained by using microarray technique. The transcripts in which the expression level was at least twofold higher than that in the other two tissue types were identified. The expression levels of selected genes were confirmed by quantitative reverse transcription polymerase chain reaction (QRT-PCR). Protein expression of selected genes were confirmed by an immunohistochemistry study in normal human ocular tissue.

resultsThere were 186 preferentially overexpressed transcripts in the limbus in direct comparison to that in the cornea and conjunctiva. Many signature genes in the cornea and conjunctiva were among the preferentially expressed transcripts obtained by the microarray data. In addition, a significant number of new genes were identified, and the expression level of all nine selected genes was verified by QRT-PCR. Protein expression levels of keratin 13, tenascin c, homeodomain only protein (HOP), and TP53 apoptosis effector (PERP) were confirmed in human ocular tissues. Functional analysis of the preferentially expressed genes in the limbus reviewed that melanin metabolism and cell-cell adhesion were among the noticeable biological processes. Chromosomal distribution of the overexpressed genes in the limbus was disproportional to that of all known human genes.

conclusionsThese findings may shed light on the unique molecular components and regulation of limbal stem cells and their niche.

Indexed as

Gene Expression ProfilingGene Expression RegulationAnimalsChlorocebus aethiopsChromosomes, MammalianConjunctivaHumansImmunohistochemistryLimbus CorneaeOligonucleotide Array Sequence AnalysisReverse Transcriptase Polymerase Chain ReactionRNA, MessengerRNA, Messenger

Identifiers

PMID18989386
PMCPMC2579939
OpenAlexW2163922876

What OpenQuestion holds

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LicenceCC BY
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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.