Evidence map›Paper›PMID 17724187›Full record

ArticleInvestigative ophthalmology & visual science2007

Morphologic characterization of organized extracellular matrix deposition by ascorbic acid-stimulated human corneal fibroblasts.

Xiaoqing Guo, Audrey E K Hutcheon, Suzanna A Melotti, James D Zieske, Vickery Trinkaus-Randall, Jeffrey W Ruberti

Open access · greenAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 106 papers.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed
6.3field-weighted citation impact, top 4% 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

106 citing papers in PubMed, 189 citations in OpenAlex.

  1. Article
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  8. Squishy matters - Corneal mechanobiology in health and disease.Progress in retinal and eye research · 2024
    Review
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46 more citing papers are in PubMed but not listed here.

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

6 authors at 5 institutions in 2 countries.

Xiaoqing GuoSchepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.
Audrey E K Hutcheon
Suzanna A Melotti
James D Zieske
Vickery Trinkaus-Randall
Jeffrey W Ruberti
Harvard University · USMassachusetts Eye and Ear Infirmary · USNortheastern University · USSingapore Eye Research Institute · SGSmith-Kettlewell Eye Research Institute · US

Funding

VISION RESEARCHP30EY003790 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI Patricia Ann D'Amore · 1985 to 2026
$25.5M
Mechanobiology of Matrix Production by Corneal FibroblastsR01EY015500 · NEI · NORTHEASTERN UNIVERSITY · PI RUBERTI, JEFFREY W · 2005 to 2014
$3.8M
In Vitro Model of Human Corneal FibrosisR21EY018939 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI ZIESKE, JAMES D · 2008 to 2009
$507k
NEI NIH HHS 1R01 EY015500-01NEI NIH HHS P30 EY003790NEI NIH HHS R01 EY015500NEI NIH HHS R21 EY018939
6 · The paper itself

Abstract

purposeTo characterize the structure and morphology of extracellular matrix (ECM) synthesized by untransformed, cultured human corneal fibroblasts in long-term cultures.

methodsHuman corneal stromal keratocytes were expanded in transwell culture in the presence of fetal bovine serum and a stable derivative of vitamin C. The cells were allowed to synthesize a fibrillar ECM for up to 5 weeks. Constructs were assessed by light (phase-contrast and differential interference-contrast) and transmission (standard and quick freeze/deep etch) microscopy.

resultsElectron micrographs revealed stratified constructs with multiple parallel layers of cells and an extracellular matrix comprising parallel arrays of small, polydisperse fibrils (27-51 nm) that often alternate in direction. Differential interference contrast images demonstrated oriented ECM fibril arrays parallel to the plane of the construct, whereas quick-freeze, deep-etch micrographs showed the details of the matrix interaction with fibroblasts through arrays of membrane surface structures.

conclusionsHuman keratocytes, cultured in a stable vitamin C derivative, are capable of assembling extracellular matrix, which comprises parallel arrays of ECM fibrils. The resultant constructs, which are highly cellular, are morphologically similar to the developing mammalian stroma, where organized matrix is derived. The appearance of arrays of structures on the cell membranes suggests a role in the local organization of synthesized ECM. This model could provide critical insight into the fundamental processes that govern the genesis of organized connective tissues such as the cornea and may provide a scaffolding suitable for tissue engineering a biomimetic stroma.

Indexed as

Ascorbic AcidCell CountCells, CulturedCollagen Type VCollagen Type VICorneal StromaExtracellular MatrixFibroblastsFluorescent Antibody Technique, IndirectHumansMicroscopy, Electron, TransmissionMicroscopy, InterferenceMicroscopy, Phase-ContrastVitaminsAscorbic AcidCollagen Type VCollagen Type VIVitamins

Identifiers

PMID17724187
PMCPMC4961093
OpenAlexW1995191934

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.