Evidence map›Paper›PMID 17786487›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2007

A phenotypic comparison of intervertebral disc and articular cartilage cells in the rat.

Cynthia R Lee, Daisuke Sakai, Tomoko Nakai, Kanae Toyama, Joji Mochida, Mauro Alini, Sibylle Grad

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed
5.7field-weighted citation impact, top 4% 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

93 citing papers in PubMed, 188 citations in OpenAlex.

  1. Article
  2. Characterization of the Nucleus Pulposus Progenitor Cells via Spatial Transcriptomics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
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  3. Review
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  9. Single-cell RNA-sequencing atlas of bovine caudal intervertebral discs: Discovery of heterogeneous cell populations with distinct roles in homeostasis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
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  16. The AscidiaFrontiers in cell and developmental biology · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. Article

33 more citing papers are in PubMed but not listed here.

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.

Cynthia R LeeBiomaterials and Tissue Engineering Program, AO Research Institute, Clavadelerstrasse 8, 7270, Davos Platz, Switzerland.
Daisuke Sakai
Tomoko Nakai
Kanae Toyama
Joji Mochida
Mauro Alini
Sibylle Grad
Tokai University · JPAO Foundation · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The basic molecular characteristics of intervertebral disc cells are still poorly defined. This study compared the phenotypes of nucleus pulposus (NP), annulus fibrosus (AF) and articular cartilage (AC) cells using rat coccygeal discs and AC from both young and aged animals and a combination of microarray, real-time RT-PCR and immunohistochemistry. Microarray analysis identified 63 genes with at least a fivefold difference in fluorescence intensity between the NP and AF cells and 41 genes with a fivefold or greater difference comparing NP cells and articular chondrocytes. In young rats, the relative mRNA levels, assessed by real-time RT-PCR, of annexin A3, glypican 3 (gpc3), keratin 19 (k19) and pleiotrophin (ptn) were significantly higher in NP compared to AF and AC samples. Furthermore, vimentin (vim) mRNA was higher in NP versus AC, and expression levels of cartilage oligomeric matrix protein (comp) and matrix gla protein (mgp) were lower in NP versus AC. Higher NP levels of comp and mgp mRNA and higher AF levels of gpc3, k19, mgp and ptn mRNA were found in aged compared to young tissue. However, the large differences between NP and AC expression of gpc3 and k19 were obvious even in the aged animals. Furthermore, the differences in expression levels of gpc3 and k19 were also evident at the protein level, with intense immunostaining for both proteins in NP and non-existent immunoreaction in AF and AC. Future studies using different species are required to evaluate whether the expression of these molecules can be used to characterize NP cells and distinguish them from other chondrocyte-like cells.

Indexed as

AnimalsBiomarkersCartilage, ArticularCell DifferentiationCell LineageChondrocytesExtracellular Matrix ProteinsFibrocartilageGene Expression RegulationImmunohistochemistryIntervertebral DiscOligonucleotide Array Sequence AnalysisPhenotypeRatsRats, WistarRegenerationBiomarkersExtracellular Matrix ProteinsRNA, Messenger

Identifiers

PMID17786487
PMCPMC2140128
OpenAlexW1969154370

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.