Evidence map›Paper›PMID 10917545›Full record

ArticleBritish journal of cancer2000

Metallothionein 1E mRNA is highly expressed in oestrogen receptor-negative human invasive ductal breast cancer.

R Jin, B H Bay, V T Chow, P H Tan, V C Lin

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. The roles of metallothioneins in carcinogenesis.Journal of hematology & oncology · 2018
    Review
  4. Article
  5. Article
  6. Article
  7. Metallothionein: an overview.World journal of gastroenterology · 2007
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Metallothionein expression in hepatocellular carcinoma.World journal of gastroenterology · 2002
    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

5 authors at 2 institutions in 1 country.

R JinDepartment of Anatomy, Faculty of Medicine, National University of Singapore, Republic of Singapore.
B H Bay
V T Chow
P H Tan
V C Lin
National University of Singapore · SGSingapore General Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metallothioneins (MTs), a group of ubiquitous metalloproteins, comprise isoforms encoded by ten functional genes in humans. Different MT isoforms possibly play different functional roles during development or under various physiological conditions. The MT-1E isoform mRNA has been recently shown to be differentially expressed in oestrogen receptor (OR)-positive and OR-negative breast cancer cell lines. In this study, we evaluated MT-1E mRNA expression via semi-quantitative RT-PCR in 51 primary invasive ductal breast cancer tissues, concurrently with OR-positive and progesterone receptor (PR)-positive MCF7 cells, OR-negative and PR-negative MDA-MB-231 cells and PR-transfected MDA-MB-231 breast cancer cells (ABC28). We demonstrated significantly higher MT-1E mRNA expression in OR-negative compared with OR-positive breast cancer tissues (P = 0.026). MCF7 cells lacked MT-1E mRNA expression, while both OR- and PR-negative MDA-MD-231 cells exhibited a high level of MT-1E mRNA expression. The level of MT-1E mRNA expression in progesterone-treated and -untreated ABC28 cells remained similar as the parental cell line MDA-MB-231-C2 cells. The results suggest that MT-1E may have specific and functional roles in OR-negative invasive ductal breast cancers, possibly mediated via effector genes downstream of the oestrogen receptor, but not through the PR pathway.

Indexed as

Biomarkers, TumorBreast NeoplasmsCarcinoma, Ductal, BreastDNA Restriction EnzymesElectrophoresis, Agar GelFemaleGene Expression Regulation, NeoplasticGenetic MarkersHumansImmunohistochemistryIsomerismMetallothioneinReceptors, EstrogenReceptors, ProgesteroneReverse Transcriptase Polymerase Chain ReactionRNA, MessengerBiomarkers, TumorDNA Restriction EnzymesGenetic MarkersMetallothioneinReceptors, EstrogenReceptors, ProgesteroneRNA, Messenger

Identifiers

PMID10917545
PMCPMC2374553
OpenAlexW2057440948

What OpenQuestion holds

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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.