Evidence map›Paper›PMID 12527894›Full record

ArticleOncogene2003

IL-8 expression and its possible relationship with estrogen-receptor-negative status of breast cancer cells.

Ariane Freund, Corine Chauveau, Jean-Paul Brouillet, Annick Lucas, Matthieu Lacroix, Anne Licznar, Françoise Vignon, Gwendal Lazennec

Open access · greenAbstract read
In one paragraph

Article in Oncogene, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers.

0numbers the graph read from it
0cells of the map it votes in
107citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

107 citing papers in PubMed, 227 citations in OpenAlex.

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47 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 1 country.

Ariane FreundINSERM U540, Molecular and Cellular Endocrinology of Cancers, Montpellier, France.
Corine Chauveau
Jean-Paul Brouillet
Annick Lucas
Matthieu Lacroix
Anne Licznar
Françoise Vignon
Gwendal Lazennec
Institut de Recherche en Cancérologie de Montpellier · FRInserm · FRHôpital Arnaud de Villeneuve · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Estrogen-receptor (ER) status is an important parameter in breast cancer management as ER-positive breast cancers have a better prognosis than ER-negative tumors. This difference comes essentially from the lower aggressiveness and invasiveness of ER-positive tumors. Here, we demonstrate, that interleukin-8 (IL-8) was clearly overexpressed in most ER-negative breast, ovary cell lines and breast tumor samples tested, whereas no significant IL-8 level could be detected in ER-positive breast or ovarian cell lines. We have also cloned human IL-8 from ER-negative MDA-MB-231 cells, and we show that IL-8 produced by breast cancer cells is identical to monocyte-derived IL-8. Interestingly, the invasion potential of ER-negative breast cancer cells is associated at least in part with expression of IL-8, but not with IL-8 receptor levels. Moreover, IL-8 increases the invasiveness of ER-positive breast cancer cells by two fold, thus confirming the invasion-promoting role of IL-8. On the other hand, exogenous expression of estrogen receptors in ER-negative cells led to a decrease of IL-8 levels. In summary, our data show that IL-8 expression is negatively linked to ER status of breast and ovarian cancer cells. We also support the idea that IL-8 expression is associated with a higher invasiveness potential of cancer cells in vitro, which suggests that IL-8 could be a novel marker of tumor aggressiveness.

Indexed as

Amino Acid SequenceBase SequenceBreast NeoplasmsCarcinogenicity TestsCarcinoma, Ductal, BreastCell DivisionFemaleGene Expression Regulation, NeoplasticHumansInterleukin-18Molecular Sequence DataNeoplasm InvasivenessReceptors, EstrogenTumor Cells, CulturedInterleukin-18Receptors, Estrogen

Identifiers

PMID12527894
PMCPMC2034407
OpenAlexW2018781502

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.