Evidence map›Paper›PMID 17932773›Full record

ArticleClinical & experimental metastasis2008

Contaminating cells alter gene signatures in whole organ versus laser capture microdissected tumors: a comparison of experimental breast cancers and their lymph node metastases.

Joshua Chuck Harrell, Wendy W Dye, Djuana M E Harvell, Carol A Sartorius, Kathryn B Horwitz

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Clinical & experimental metastasis, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

22 citing papers in PubMed, 45 citations in OpenAlex.

  1. Trial
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  8. SIVQ-LCM protocol for the ArcturusXT instrument.Journal of visualized experiments : JoVE · 2014
    Article
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  14. EGFR and KRAS mutation analysis in cytologic samples of lung adenocarcinoma enabled by laser capture microdissection.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2012
    Article
  15. Article
  16. Why is it crucial to reintegrate pathology into cancer research?BioEssays : news and reviews in molecular, cellular and developmental biology · 2011
    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

5 authors at 3 institutions in 1 country.

Joshua Chuck HarrellDivision of Endocrinology, Department of Medicine, University of Colorado Health Sciences Center, MS 8106, RC-1 South, 12801 E. 17th Ave, Room 7402G, PO Box 6511, Aurora, CO, 80045, USA. Joshua.Harrell@uchsc.edu
Wendy W Dye
Djuana M E Harvell
Carol A Sartorius
Kathryn B Horwitz
University of Colorado Anschutz Medical Campus · USColorado School of Public Health · USUniversity of Colorado Health · US

Funding

PROGESTERONE RECEPTORS IN BREAST CANCERR01CA026869 · NCI · UNIVERSITY OF COLORADO DENVER · PI HORWITZ, KATHRYN B · 1985 to 2014
$5.6M
PROGESTERONE RECEPTORS IN BREAST CANCERR37CA026869 · NCI · UNIVERSITY OF COLORADO DENVER · PI HORWITZ, KATHRYN B · 1993 to 1999
–
NCI NIH HHS CA26869
6 · The paper itself

Abstract

Genome-wide expression profiling has expedited our molecular understanding of the different subtypes of breast cancers, as well as defined the differences among genes expressed in primary tumors and their metastases. Laser-capture microdissection (LCM) coupled to gene expression analysis allows us to understand how specific cell types contribute to the total cancer gene expression signature. Expression profiling was used to define genes that contribute to breast cancer spread into and/or growth within draining lymph nodes (LN). Whole tumor xenografts and their matched whole LN metastases were compared to LCM captured cancer cells from the same tumors and matched LN metastases. One-thousand nine-hundred thirty genes were identified by the whole organ method alone, and 1,281 genes by the LCM method alone. However, less than 1% (30 genes) of genes that changed between tumors and LN metastases were common to both methods. Several of these genes have previously been implicated in cancer aggressiveness. Our data show that whole-organ and LCM based gene expression profiling yield distinctly different lists of metastasis-promoting genes. Contamination of the tumor cells, and cross reactivity of mouse RNA to human-specific chips may explain these differences, and suggests that LCM-derived data may be more accurate.

Indexed as

AnimalsBreast NeoplasmsFemaleGene Expression ProfilingHumansLasersLymphatic MetastasisMiceMicrodissection

Identifiers

PMID17932773
OpenAlexW2128420556

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.