Evidence map›Paper›PMID 18349818›Full record

ArticleBritish journal of cancer2008

Erythropoietin receptor transcription is neither elevated nor predictive of surface expression in human tumour cells.

A M Sinclair, N Rogers, L Busse, I Archibeque, W Brown, P D Kassner, J E V Watson, G E Arnold, K C Q Nguyen, S Powers and 1 more

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
7.1field-weighted citation impact, top 3% 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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 65 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Erythropoiesis-stimulating agents in the management of cancer patients with anemia: a meta-analysis.Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2014
    Article
  11. Review
  12. Review
  13. Expression and functional significance of the erythropoietin receptor in hepatocellular carcinoma.HPB : the official journal of the International Hepato Pancreato Biliary Association · 2013
    Article
  14. Article
  15. Erythropoietin.Cold Spring Harbor perspectives in medicine · 2013
    Review
  16. Article
  17. Review
  18. Article
  19. Promises and pitfalls in erythopoietin-mediated tissue protection: are nonerythropoietic derivatives a way forward?Journal of investigative medicine : the official publication of the American Federation for Clinical Research · 2011
    Review
  20. 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

11 authors at 2 institutions in 1 country.

A M SinclairAmgen Inc., One Amgen Center Drive, Thousand Oaks, CA 91362, USA. anguss@amgen.com
N Rogers
L Busse
I Archibeque
W Brown
P D Kassner
J E V Watson
G E Arnold
K C Q Nguyen
S Powers
S Elliott
Amgen (United States) · USCold Spring Harbor Laboratory · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Erythropoietin receptor (EpoR) has been reported to be overexpressed in tumours and has raised safety concerns regarding the use of erythropoiesis-stimulating agents (ESAs) to treat anaemia in cancer patients. To investigate the potential for EpoR to be overexpressed in tumours, we have evaluated human tumours for amplification of the EPOR locus, levels of EPOR transcripts, and expression of surface EpoR protein. Gene amplification analysis of 1083 solid tumours found that amplification of the EPOR locus was rare with frequencies similar to other non-oncogenes. EPOR transcript levels in tumours and tumour cell lines were low in comparison with bone marrow and were equivalent to, or lower than, levels in normal tissues of tumour origin. Although EpoR mRNA was detected in some tumour lines, no EpoR could be detected on the cell surface using (125)I-Epo binding studies. This may be due to the lack of EpoR protein expression or lack of cell-surface-trafficking factors, such as Jak2. Taken together, we have found no evidence that EpoR is overexpressed in tumours or gets to the surface of tumour cells. This suggests that there is no selective advantage for tumours to overexpress EpoR and questions the functional relevance of EpoR gene transcription in tumours.

Indexed as

Cell LineGene AmplificationHumansNeoplasmsOligonucleotide Array Sequence AnalysisReceptors, ErythropoietinReverse Transcriptase Polymerase Chain ReactionRNA, MessengerTranscription, GeneticReceptors, ErythropoietinRNA, Messenger

Identifiers

PMID18349818
PMCPMC2275479
OpenAlexW2056481884

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.