Evidence map›Paper›PMID 28124102›Full record

ArticleInternational orthopaedics2017

In-vitro chondrogenic potential of synovial stem cells and chondrocytes allocated for autologous chondrocyte implantation - a comparison : Synovial stem cells as an alternative cell source for autologous chondrocyte implantation.

Eva Johanna Kubosch, Emanuel Heidt, Philipp Niemeyer, Anke Bernstein, Norbert P Südkamp, Hagen Schmal

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in International orthopaedics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 27 citations in OpenAlex.

  1. Trial
  2. ChondrocytesFrontiers in cell and developmental biology · 2026
    Review
  3. Orthobiologics: a review.International orthopaedics · 2023
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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

6 authors at 2 institutions in 2 countries.

Eva Johanna KuboschDepartment of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, - Albert-Ludwigs-University of Freiburg, Freiburg, Germany. johanna.kubosch@uniklinik-freiburg.de.ORCID http://orcid.org/0000-0001-9460-3520
Emanuel HeidtDepartment of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, - Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
Philipp NiemeyerDepartment of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, - Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
Anke BernsteinDepartment of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, - Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
Norbert P SüdkampDepartment of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, - Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
Hagen SchmalDepartment of Orthopaedics and Traumatology, Odense University Hospital, Odense, Denmark.
University of Freiburg · DEUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe use of passaged chondrocytes is the current standard for autologous chondrocyte implantation (ACI). De-differentiation due to amplification and donor site morbidity are known drawbacks highlighting the need for alternative cell sources.

methodsVia clinically validated flow cytometry analysis, we compared the expression of human stem cell and cartilage markers (collagen type 2 (Col2), aggrecan (ACAN), CD44) of chondrocytes (CHDR), passaged chondrocytes for ACI (CellGenix™), bone marrow derived mesenchymal stem cells (BMSC), and synovial derived stem cells (SDSC).

resultsPrimary, human BMSC and SDSC revealed similar adipogenic, osteogenic, and chondrogenic differentiation potential and stem cell marker expression. However, the expression of the chondrogenic markers Col2 and ACAN was statistically significant higher in SDSC. CHDR and SDSC expressed ACAN and CD44 equally, but Col2 was expressed more strongly on the SDSC surface. The marker expression of SDSC from osteoarthritic joints (Kellgren-Lawrence score ≥3) versus normal knees (Kellgren-Lawrence score ≤2) did not differ. Similarly, there was no difference between temporarily frozen and fresh SDSC. Col2 and ACAN surface expression declined with further passaging, whereas CD44 remained unchanged. We observed the same effect after reducing the serum content. When comparing CHDR for ACI with SDSC of the same passage (P2/3), both Col2 and ACAN, correlating with clinical outcome, were expressed higher in SDSC.

conclusionsIn summary, SDSC demonstrated high differentiation potential and a stable chondrogenic phenotype. They might therefore be better suitable for ACI than BMSC or passaged CHDR.

Indexed as

AdultAgedAged, 80 and overAggrecansCartilageCell DifferentiationCells, CulturedChondrocytesChondrogenesisCollagen Type IIFemaleFlow CytometryHumansHyaluronan ReceptorsMaleMesenchymal Stem CellsAggrecansCD44 protein, humanCollagen Type IIHyaluronan ReceptorsAutologous chondrocyte implantationCartilage repairCell qualityCollagen type II

Identifiers

PMID28124102
OpenAlexW2581265621

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.