Evidence map›Paper›PMID 19221791›Full record

Trial reportJournal of cancer research and clinical oncology2009

Diagnostic accuracy of small breast epithelial mucin mRNA as a marker for bone marrow micrometastasis in breast cancer: a pilot study.

Manuel Valladares-Ayerbes, Pilar Iglesias-Díaz, Silvia Díaz-Prado, Daniel Ayude, Vanessa Medina, Mar Haz, Margarita Reboredo, Silvia Antolín, Lourdes Calvo, Luis M Antón-Aparicio

Open access · greenAbstract readClinical Trial
In one paragraph

Trial report in Journal of cancer research and clinical oncology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.9field-weighted citation impact, top 25% 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, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. 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

10 authors at 4 institutions in 2 countries.

Manuel Valladares-AyerbesMedical Oncology Department, La Coruña University Hospital, Servicio Gallego de Salud, CP 15006 La Coruña, Spain. manuel_valladares@canalejo.org
Pilar Iglesias-Díaz
Silvia Díaz-Prado
Daniel Ayude
Vanessa Medina
Mar Haz
Margarita Reboredo
Silvia Antolín
Lourdes Calvo
Luis M Antón-Aparicio
Servicio Gallego de Salud · ESInstituto de Investigación Biomédica de A Coruña · ESUniversidade da Coruña · ESBiomedical Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDetection of isolated tumour cells (ITC) in the blood or minimal deposits in distant organs such as bone marrow (BM) could be important to identify breast cancer patients at high risk of relapse or disease progression. PCR amplification of tissue or tumour selective mRNA is the most powerful analytical tool for detection of this micrometastasis. We have evaluated for the first time, the diagnostic accuracy of small breast epithelial mucin (SBEM) as a potential marker for BM micrometastasis in breast cancer.

methodsA nested RT-PCR assay for detection of SBEM mRNA was compared with immunocytochemistry (ICC) with anticytokeratin AE1/AE3 antibody in paired samples obtained from the BM of breast cancer patients. Associations of SBEM mRNA detection in BM and clinical and pathological parameters were evaluated. SBEM mRNA status and time to breast cancer progression were analysed using Kaplan-Meyer curves.

resultsFifty stages I-IV breast cancer female patients were prospectively included in our study. SBEM specific transcript was found in BM in 26% of the patients. Detection rate was similar to the percentage of patients with ITCs detected using ICC (24%). SBEM mRNA in BM aspirates were significantly associated with presence of clinically active disease, including locally advanced and metastatic patients (47%, P = 0.021) and tumours with positive hormonal receptors (36.7%, P = 0.035). In addition association with Her2/neu over-expression (44.4%, P = 0.051) and low proliferating tumours (36%, P = 0.067) were close to significant levels. When we analysed time to breast cancer progression adjusting for grade or hormone receptor status, presence of SBEM mRNA in BM defines distinct prognostic groups.

conclusionsSBEM might represent a suitable marker for molecular detection of ITCs in BM in breast cancer patients. Analysis of prognostic value for SBEM mRNA-based assay should take into account the heterogeneity and different molecular subtypes of breast cancer.

Indexed as

AdultAgedAged, 80 and overBiomarkers, TumorBone Marrow NeoplasmsBreast NeoplasmsErb-b2 Receptor Tyrosine KinasesFemaleHumansImmunohistochemistryMiddle AgedMucinsNeoplasm StagingPilot ProjectsReverse Transcriptase Polymerase Chain ReactionRNA, MessengerBiomarkers, TumorErb-b2 Receptor Tyrosine KinasesMucinsMUCL1 protein, humanRNA, MessengerRNA, Neoplasm

Identifiers

PMID19221791
PMCPMC12160214
OpenAlexW2032701250

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.