Evidence map›Paper›PMID 33835257›Full record

ArticleCell and tissue research2021

Cyclically stretched ACL fibroblasts emigrating from spheroids adapt their cytoskeleton and ligament-related expression profile.

Clemens Gögele, Christina Hoffmann, Jens Konrad, Rudolf Merkel, Silke Schwarz, Mersedeh Tohidnezhad, Bernd Hoffmann, Gundula Gesine Schulze-Tanzil

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Cell and tissue research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.4field-weighted citation impact, top 22% 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

5 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Tendon mechanobiology in the context of tendon biofabrication.Frontiers in bioengineering and biotechnology · 2025
    Review
  5. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Clemens GögeleInstitute of Anatomy and Cell Biology, Paracelsus Medical University, Prof.-Ernst-Nathan Str. 1, 90419, Nuremberg and Salzburg, Nuremberg, Germany.
Christina HoffmannInstitute of Biological Information Processing: IBI-2, Forschungszentrum Jülich, 52425, Jülich, Germany.
Jens KonradInstitute of Biological Information Processing: IBI-2, Forschungszentrum Jülich, 52425, Jülich, Germany.
Rudolf MerkelInstitute of Biological Information Processing: IBI-2, Forschungszentrum Jülich, 52425, Jülich, Germany.
Silke SchwarzInstitute of Anatomy and Cell Biology, Paracelsus Medical University, Prof.-Ernst-Nathan Str. 1, 90419, Nuremberg and Salzburg, Nuremberg, Germany.
Mersedeh TohidnezhadDepartment of Anatomy and Cell Biology, RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany.
Bernd Hoffmann *Institute of Biological Information Processing: IBI-2, Forschungszentrum Jülich, 52425, Jülich, Germany.
Gundula Gesine Schulze-TanzilInstitute of Anatomy and Cell Biology, Paracelsus Medical University, Prof.-Ernst-Nathan Str. 1, 90419, Nuremberg and Salzburg, Nuremberg, Germany. gundula.schulze@pmu.ac.at.ORCID http://orcid.org/0000-0002-9807-9532
Forschungszentrum Jülich · DEParacelsus Medizinische Privatuniversität · DERWTH Aachen University · DEUniversity of Salzburg · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mechanical stress of ligaments varies; hence, ligament fibroblasts must adapt their expression profile to novel mechanomilieus to ensure tissue resilience. Activation of the mechanoreceptors leads to a specific signal transduction, the so-called mechanotransduction. However, with regard to their natural three-dimensional (3D) microenvironment cell reaction to mechanical stimuli during emigrating from a 3D spheroid culture is still unclear. This study aims to provide a deeper understanding of the reaction profile of anterior cruciate ligament (ACL)-derived fibroblasts exposed to cyclic uniaxial strain in two-dimensional (2D) monolayer culture and during emigration from 3D spheroids with respect to cell survival, cell and cytoskeletal orientation, distribution, and expression profile. Monolayers and spheroids were cultured in crosslinked polydimethyl siloxane (PDMS) elastomeric chambers and uniaxially stretched (14% at 0.3 Hz) for 48 h. Cell vitality, their distribution, nuclear shape, stress fiber orientation, focal adhesions, proliferation, expression of ECM components such as sulfated glycosaminoglycans, collagen type I, decorin, tenascin C and cell-cell communication-related gap junctional connexin (CXN) 43, tendon-related markers Mohawk and tenomodulin (myodulin) were analyzed. In contrast to unstretched cells, stretched fibroblasts showed elongation of stress fibers, cell and cytoskeletal alignment perpendicular to strain direction, less rounded cell nuclei, increased numbers of focal adhesions, proliferation, amplified CXN43, and main ECM component expression in both cultures. The applied cyclic stretch protocol evoked an anabolic response and enhanced tendon-related marker expression in ACL-derived fibroblasts emigrating from 3D spheroids and seems also promising to support in future tissue formation in ACL scaffolds seeded in vitro with spheroids.

Indexed as

Mechanotransduction, CellularStress, MechanicalTissue ScaffoldsAnimalsAnterior Cruciate LigamentCells, CulturedCell SurvivalCytoskeletonExtracellular MatrixFemaleFibroblastsRabbitsTissue EngineeringACL-derived fibroblastsConnexin 43Cyclic strainMechanostimulationMohawkMyodulinSpheroidsTendon extracellular matrixUniaxial stretch

Identifiers

PMID33835257
PMCPMC8211585
OpenAlexW3141984534

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.