Evidence map›Paper›PMID 25432738›Full record

Trial reportBreast cancer research and treatment2015

Expression profiling of circulating tumor cells in metastatic breast cancer.

Julie E Lang, Janet H Scott, Denise M Wolf, Petr Novak, Vasu Punj, Mark Jesus M Magbanua, Weizhu Zhu, Neal Mineyev, Christopher M Haqq, Julia R Crothers and 4 more

Abstract readClinical Trial
In one paragraph

Trial report in Breast cancer research and treatment, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  8. miR-205-5p Downregulation andInternational journal of molecular sciences · 2021
    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

14 authors.

Julie E LangDivision of Breast and Soft Tissue Surgery, Department of Surgery, Norris Comprehensive Cancer Center (NCCC), University of Southern California (USC), 1510 San Pablo Street Suite 412, Los Angeles, CA, 90033-0800, USA, julie.lang@med.usc.edu.
Janet H Scott
Denise M Wolf
Petr Novak
Vasu Punj
Mark Jesus M Magbanua
Weizhu Zhu
Neal Mineyev
Christopher M Haqq
Julia R Crothers
Laura J Esserman
Debasish Tripathy
Laura van 't Veer
John W Park

Funding

USC/NORRIS COMPREHENSIVE CANCER CENTER (CORE) SUPPORTP30CA014089 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Fumito Ito · 1985 to 2026
$181.4M
SOUTHWEST ENVIRONMENTAL HEALTH SCIENCES CENTERP30ES006694 · NIEHS · UNIVERSITY OF ARIZONA · PI DEAN BILLHEIMER · 1994 to 2026
$36.7M
PHAGE ANTIBODY BASED PROBES OF ERBB RECEPTOR FUNCTIONU54CA090788 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI TEMPERO, MARGARET A · 2001 to 2006
$5.6M
NCI NIH HHS P30 CA014089NCI NIH HHS P30CA014089NCI NIH HHS U54 CA090788NCI NIH HHS U54 CA90788NIEHS NIH HHS ES006694NIEHS NIH HHS P30 ES006694
6 · The paper itself

Abstract

Circulating tumor cells (CTCs) are prognostic in all stages of breast cancer. However, since they are extremely rare, little is known about the molecular nature of these cells. We report a novel strategy for the isolation and expression profiling of pure populations of CTCs derived from peripheral blood. We developed a method to isolate CTCs based on immunomagnetic capture followed by fluorescence-activated cell sorting (IE/FACS). After assay validation using the BT474 cell line spiked into blood samples in vitro, RNA from CTCs isolated from the blood of five metastatic breast cancer (MBC) patients was linearly amplified and subjected to gene expression profiling via cDNA microarrays. We isolated a range of 9-993 captured CTCs from five MBC patients' blood and profiled their RNA in comparison to a diverse panel of primary breast tumors (n = 55). Unsupervised hierarchical clustering revealed that CTC profiles clustered with more aggressive subtypes of primary breast tumors and were readily distinguishable from peripheral blood (PB) and normal epithelium. Differential expression analysis revealed CTCs to have downregulated apoptosis, and they were distinguishable from PB by the relative absence of immune-related signals. As expected, CTCs from MBC had significantly higher risk of recurrence scores than primary tumors (p = 0.0073). This study demonstrates that it is feasible to isolate CTCs from PB with high purity through IE/FACS and profile them via gene expression analysis. Our approach may inform the discovery of therapeutic predictors and be useful for real-time identification of emerging resistance mechanisms in MBC patients.

Indexed as

Neoplastic Cells, CirculatingAntigens, NeoplasmBiomarkers, TumorBiosynthetic PathwaysBreast NeoplasmsCell Adhesion MoleculesEpithelial Cell Adhesion MoleculeFemaleFlow CytometryGene Expression ProfilingGene Expression Regulation, NeoplasticHumansMicroarray AnalysisMiddle AgedNeoplasm MetastasisNeoplasm ProteinsAntigens, NeoplasmBiomarkers, TumorCell Adhesion MoleculesEPCAM protein, humanEpithelial Cell Adhesion MoleculeNeoplasm Proteins

Identifiers

PMID25432738
PMCPMC4698170

What OpenQuestion holds

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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.