Evidence map›Paper›PMID 32584809›Full record

ArticlePLoS computational biology2020

Mechanobiological model for simulation of injured cartilage degradation via pro-inflammatory cytokines and mechanical stimulus.

Atte S A Eskelinen, Petri Tanska, Cristina Florea, Gustavo A Orozco, Petro Julkunen, Alan J Grodzinsky, Rami K Korhonen

Open access · goldAbstract read
In one paragraph

Article in PLoS computational biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Review
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  7. Review
  8. Article
  9. Article
  10. Reduced Muscle Strength Can Alter the Impact of Gait Modifications on Knee Cartilage Mechanics.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
    Article
  11. Article
  12. Review
  13. Impact of Abnormal Mechanical Stress on Chondrocyte Death in Osteoarthritis.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Review
  14. Review
  15. Loss of collagen content is localized near cartilage lesions on the day of injurious loading and intensified on day 12.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
    Article
  16. Review
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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 2 institutions in 2 countries.

Atte S A EskelinenDepartment of Applied Physics, University of Eastern Finland, Finland.ORCID 0000-0003-1516-3083
Petri TanskaDepartment of Applied Physics, University of Eastern Finland, Finland.ORCID 0000-0002-9684-6902
Cristina FloreaDepartment of Applied Physics, University of Eastern Finland, Finland.ORCID 0000-0001-7719-2600
Gustavo A OrozcoDepartment of Applied Physics, University of Eastern Finland, Finland.
Petro JulkunenDepartment of Applied Physics, University of Eastern Finland, Finland.ORCID 0000-0002-0461-1058
Alan J GrodzinskyDepartments of Biological Engineering, Electrical Engineering and Computer Science and Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, United States of America.
Rami K KorhonenDepartment of Applied Physics, University of Eastern Finland, Finland.ORCID 0000-0002-3486-7855
University of Eastern Finland · FIMassachusetts Institute of Technology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Post-traumatic osteoarthritis (PTOA) is associated with cartilage degradation, ultimately leading to disability and decrease of quality of life. Two key mechanisms have been suggested to occur in PTOA: tissue inflammation and abnormal biomechanical loading. Both mechanisms have been suggested to result in loss of cartilage proteoglycans, the source of tissue fixed charge density (FCD). In order to predict the simultaneous effect of these degrading mechanisms on FCD content, a computational model has been developed. We simulated spatial and temporal changes of FCD content in injured cartilage using a novel finite element model that incorporates (1) diffusion of the pro-inflammatory cytokine interleukin-1 into tissue, and (2) the effect of excessive levels of shear strain near chondral defects during physiologically relevant loading. Cytokine-induced biochemical cartilage explant degradation occurs near the sides, top, and lesion, consistent with the literature. In turn, biomechanically-driven FCD loss is predicted near the lesion, in accordance with experimental findings: regions near lesions showed significantly more FCD depletion compared to regions away from lesions (p<0.01). Combined biochemical and biomechanical degradation is found near the free surfaces and especially near the lesion, and the corresponding bulk FCD loss agrees with experiments. We suggest that the presence of lesions plays a role in cytokine diffusion-driven degradation, and also predisposes cartilage for further biomechanical degradation. Models considering both these cartilage degradation pathways concomitantly are promising in silico tools for predicting disease progression, recognizing lesions at high risk, simulating treatments, and ultimately optimizing treatments to postpone the development of PTOA.

Indexed as

BiophysicsStress, MechanicalAnimalsCartilageCytokinesHumansInflammation MediatorsCytokinesInflammation Mediators

Identifiers

PMID32584809
PMCPMC7343184
OpenAlexW3037353610

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.