Evidence map›Paper›PMID 38529730›Full record

ArticleJournal of biomechanical engineering2024

Controlled Stiffness of Direct-Write, Near-Field Electrospun Gelatin Fibers Generates Differences in Tenocyte Morphology and Gene Expression.

Zachary G Davis, Drew W Koch, Samantha L Watson, Grant M Scull, Ashley C Brown, Lauren V Schnabel, Matthew B Fisher

Open access · greenAbstract read
In one paragraph

Article in Journal of biomechanical engineering, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.4field-weighted citation impact, top 23% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Review
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 2 institutions in 1 country.

Zachary G DavisJoint Department of Biomedical Engineering, North Carolina State University, University of North Carolina at Chapel Hill, Raleigh, NC 27695; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27695.
Drew W KochCollege of Veterinary Medicine, North Carolina State University, Raleigh, NC 27695; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27695.
Samantha L WatsonJoint Department of Biomedical Engineering, North Carolina State University, University of North Carolina at Chapel Hill, Raleigh, NC 27695.
Grant M ScullJoint Department of Biomedical Engineering, North Carolina State University, University of North Carolina at Chapel Hill, Raleigh, NC 27695; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27695.
Ashley C BrownJoint Department of Biomedical Engineering, North Carolina State University, University of North Carolina at Chapel Hill, Raleigh, NC 27695; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27695.
Lauren V SchnabelCollege of Veterinary Medicine, North Carolina State University, Raleigh, NC 27695; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27695.
Matthew B FisherJoint Department of Biomedical Engineering, North Carolina State University, University of North Carolina at Chapel Hill, Raleigh, NC 27695; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27695; Department of Orthopaedics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599.
North Carolina State University · USUniversity of North Carolina at Chapel Hill · US

Funding

Comparative Medicine and Translational Research Training ProgramT32OD011130 · OD · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI Lauren Virginia Schnabel · 2012 to 2026
$7.8M
Training Grant in Comparative Molecular MedicineT32GM133393 · NIGMS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI Matthew B Fisher, Caroline Laplante · 2021 to 2026
$1.7M
NIGMS NIH HHS T32 GM133393NIH HHS T32 OD011130
6 · The paper itself

Abstract

Tendinopathy is a leading cause of mobility issues. Currently, the cell-matrix interactions involved in the development of tendinopathy are not fully understood. In vitro tendon models provide a unique tool for addressing this knowledge gap as they permit fine control over biochemical, micromechanical, and structural aspects of the local environment to explore cell-matrix interactions. In this study, direct-write, near-field electrospinning of gelatin solution was implemented to fabricate micron-scale fibrous scaffolds that mimic native collagen fiber size and orientation. The stiffness of these fibrous scaffolds was found to be controllable between 1 MPa and 8 MPa using different crosslinking methods (EDC, DHT, DHT+EDC) or through altering the duration of crosslinking with EDC (1 h to 24 h). EDC crosslinking provided the greatest fiber stability, surviving up to 3 weeks in vitro. Differences in stiffness resulted in phenotypic changes for equine tenocytes with low stiffness fibers (∼1 MPa) promoting an elongated nuclear aspect ratio while those on high stiffness fibers (∼8 MPa) were rounded. High stiffness fibers resulted in the upregulation of matrix metalloproteinase (MMPs) and proteoglycans (possible indicators for tendinopathy) relative to low stiffness fibers. These results demonstrate the feasibility of direct-written gelatin scaffolds as tendon in vitro models and provide evidence that matrix mechanical properties may be crucial factors in cell-matrix interactions during tendinopathy formation.

Indexed as

GelatinTenocytesTissue ScaffoldsAnimalsBiomechanical PhenomenaCell ShapeGene Expression RegulationHorsesMechanical PhenomenaGelatin

Identifiers

PMID38529730
PMCPMC11080953
OpenAlexW4393194548

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.