Evidence map›Paper›PMID 20809981›Full record

ArticleBMC cancer2010

Microenvironment alters epigenetic and gene expression profiles in Swarm rat chondrosarcoma tumors.

Christopher A Hamm, Jeff W Stevens, Hehuang Xie, Elio F Vanin, Jose A Morcuende, Hakeem Abdulkawy, Elisabeth A Seftor, Simone T Sredni, Jared M Bischof, Deli Wang and 5 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC cancer, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.7field-weighted citation impact, top 25% 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

16 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
  2. Review
  3. Epigenetic Abnormalities in Chondrosarcoma.International journal of molecular sciences · 2023
    Review
  4. Article
  5. The Osteoclast Traces the Route to Bone Tumors and Metastases.Frontiers in cell and developmental biology · 2022
    Review
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  7. Article
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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

15 authors at 3 institutions in 2 countries.

Christopher A HammInterdisciplinary Graduate Program in Genetics, The University of Iowa, Iowa City, IA 52242, USA.
Jeff W Stevens
Hehuang Xie
Elio F Vanin
Jose A Morcuende
Hakeem Abdulkawy
Elisabeth A Seftor
Simone T Sredni
Jared M Bischof
Deli Wang
Sergey Malchenko
Maria de Fatima Bonaldo
Thomas L Casavant
Mary J C Hendrix
Marcelo B Soares
Epigenomics (Germany) · DENorthwestern University · USUniversity of Iowa · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChondrosarcomas are malignant cartilage tumors that do not respond to traditional chemotherapy or radiation. The 5-year survival rate of histologic grade III chondrosarcoma is less than 30%. An animal model of chondrosarcoma has been established--namely, the Swarm Rat Chondrosarcoma (SRC)--and shown to resemble the human disease. Previous studies with this model revealed that tumor microenvironment could significantly influence chondrosarcoma malignancy.

methodsTo examine the effect of the microenvironment, SRC tumors were initiated at different transplantation sites. Pyrosequencing assays were utilized to assess the DNA methylation of the tumors, and SAGE libraries were constructed and sequenced to determine the gene expression profiles of the tumors. Based on the gene expression analysis, subsequent functional assays were designed to determine the relevancy of the specific genes in the development and progression of the SRC.

resultsThe site of transplantation had a significant impact on the epigenetic and gene expression profiles of SRC tumors. Our analyses revealed that SRC tumors were hypomethylated compared to control tissue, and that tumors at each transplantation site had a unique expression profile. Subsequent functional analysis of differentially expressed genes, albeit preliminary, provided some insight into the role that thymosin-β4, c-fos, and CTGF may play in chondrosarcoma development and progression.

conclusionThis report describes the first global molecular characterization of the SRC model, and it demonstrates that the tumor microenvironment can induce epigenetic alterations and changes in gene expression in the SRC tumors. We documented changes in gene expression that accompany changes in tumor phenotype, and these gene expression changes provide insight into the pathways that may play a role in the development and progression of chondrosarcoma. Furthermore, specific functional analysis indicates that thymosin-β4 may have a role in chondrosarcoma metastasis.

Indexed as

Epigenesis, GeneticGene Expression ProfilingAnimalsBiomarkers, TumorBlotting, WesternCartilageChondrosarcomaConnective Tissue Growth FactorDNA MethylationGenes, fosHumansInjections, SubcutaneousLung NeoplasmsMaleMiceMice, NudeBiomarkers, TumorCCN2 protein, ratConnective Tissue Growth FactorThymosinThymosin beta(4)

Identifiers

PMID20809981
PMCPMC2944175
OpenAlexW2061846743

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.