Evidence map›Paper›PMID 25397671›Full record

ArticlePloS one2014

Cell population kinetics of collagen scaffolds in ex vivo oral wound repair.

Hermann Agis, Amy Collins, Andrei D Taut, Qiming Jin, Laura Kruger, Christoph Görlach, William V Giannobile

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

14 citing papers in PubMed, 25 citations in OpenAlex.

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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

7 authors at 3 institutions in 3 countries.

Hermann AgisPeriodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America; Department of Conservative Dentistry and Periodontology, Medical University of Vienna, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria.
Amy CollinsPeriodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America.
Andrei D TautPeriodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America.
Qiming JinDepartment of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America.
Laura KrugerPeriodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America.
Christoph GörlachGeistlich Pharma AG, Wolhusen, Switzerland.
William V GiannobilePeriodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan, United States of America.
Michigan United · USUniversity of Michigan–Ann Arbor · USGeistlich Pharma (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biodegradable collagen scaffolds are used clinically for oral soft tissue augmentation to support wound healing. This study sought to provide a novel ex vivo model for analyzing healing kinetics and gene expression of primary human gingival fibroblasts (hGF) within collagen scaffolds. Sponge type and gel type scaffolds with and without platelet-derived growth factor-BB (PDGF) were assessed in an hGF containing matrix. Morphology was evaluated with scanning electron microscopy, and hGF metabolic activity using MTT. We quantitated the population kinetics within the scaffolds based on cell density and distance from the scaffold border of DiI-labled hGFs over a two-week observation period. Gene expression was evaluated with gene array and qPCR. The sponge type scaffolds showed a porous morphology. Absolute cell number and distance was higher in sponge type scaffolds when compared to gel type scaffolds, in particular during the first week of observation. PDGF incorporated scaffolds increased cell numbers, distance, and formazan formation in the MTT assay. Gene expression dynamics revealed the induction of key genes associated with the generation of oral tissue. DKK1, CYR61, CTGF, TGFBR1 levels were increased and integrin ITGA2 levels were decreased in the sponge type scaffolds compared to the gel type scaffold. The results suggest that this novel model of oral wound healing provides insights into population kinetics and gene expression dynamics of biodegradable scaffolds.

Indexed as

Tissue ScaffoldsBecaplerminCell CountCollagenConnective Tissue Growth FactorCysteine-Rich Protein 61FibroblastsGene Expression ProfilingGene Expression RegulationGingivaHumansIntegrin alpha2Intercellular Signaling Peptides and ProteinsIn Vitro TechniquesMicroscopy, Electron, ScanningPolymerase Chain ReactionBecaplerminCCN1 protein, humanCCN2 protein, humanCollagenConnective Tissue Growth FactorCysteine-Rich Protein 61DKK1 protein, humanIntegrin alpha2Intercellular Signaling Peptides and ProteinsITGA2B protein, humanProtein Serine-Threonine KinasesProto-Oncogene Proteins c-sisReceptors, Transforming Growth Factor betaReceptor, Transforming Growth Factor-beta Type ITetrazolium SaltsTGFBR1 protein, humanThiazolesthiazolyl blue

Identifiers

PMID25397671
PMCPMC4232419
OpenAlexW2036849266

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.