Evidence map›Paper›PMID 21508364›Full record

ArticleAnticancer research2011

Quantitative comparison of erythropoietin receptor levels in the epithelial versus endothelial fractions of primary breast tumors.

Chris P Miller, Nicole Urban, C Anthony Blau

Abstract readComparative Study
In one paragraph

Article in Anticancer research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.3field-weighted citation impact, top 38% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. Article
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

3 authors at 1 institution in 1 country.

Chris P MillerDepartment of Medicine,University of Washington, Seattle, WA 98195-8056, USA.
Nicole Urban
C Anthony Blau
University of Washington · US

Funding

Vaccinating against IGFBP-2 to prevent ovarian cancer relapseP50CA083636 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI DRESCHER, CHARLES, URBAN, NICOLE DENISE · 1999 to 2015
$35.1M
Erythropoietin Blockade for the Treatment of CancerR01CA135357 · NCI · UNIVERSITY OF WASHINGTON · PI BLAU, C. ANTHONY · 2008 to 2012
$2.0M
NCI NIH HHS 1R01CA135357NCI NIH HHS P50 CA083636NCI NIH HHS P50 CA083636-S2NCI NIH HHS R01 CA135357
6 · The paper itself

Abstract

backgroundErythropoietin (EPO) was shown to reduce tumor survival in recent trials, however, its mechanisms of action are unclear. Efforts to measure tumor EPO receptor (EPOR) are limited by the promiscuity of EPOR antibodies, and concerns as to whether EPOR mRNA measurements are confounded by heterogeneity of tumor vasculature, a known EPOR source. MATERIALS AND

methodsThis study compared mRNA levels of EPOR and JAK2 in 11 breast tumor epithelial versus endothelial dissections.

resultsIn nine tumors EPOR mRNA was 2.6 (1.2-5.7)-fold lower in the epithelial fraction, however, this reduction was less than the reduction of endothelial markers. In two tumors, EPOR mRNA was 2.9 (1.7-4.0)-fold higher in the epithelial fraction. The inter-tumor variation in EPOR levels exceeded the intra-tumor variation between fractions. Similar results were obtained for JAK2.

conclusionTumor vasculature is not the sole source of EPOR and JAK2, and tumors can be segregated by EPOR and JAK2 levels for correlative analysis with clinical outcomes.

Indexed as

Adenocarcinoma, MucinousAdultAgedAged, 80 and overBreast NeoplasmsCarcinoma, Ductal, BreastCarcinoma, LobularEndothelium, VascularEpithelial CellsErythropoietinFemaleHumansJanus Kinase 2LasersMicrodissectionMiddle AgedEPO protein, humanErythropoietinJAK2 protein, humanJanus Kinase 2Receptors, ErythropoietinRNA, Messenger

Identifiers

PMID21508364
PMCPMC3401416
OpenAlexW2125711074

What OpenQuestion holds

Textmetadata
LicenceTDM
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.