Evidence map›Paper›PMID 16567471›Full record

ArticleJournal of clinical pathology2006

Increased expression of connexins 26 and 43 in lymph node metastases of breast cancer.

L Kanczuga-Koda, S Sulkowski, A Lenczewski, M Koda, A Wincewicz, M Baltaziak, M Sulkowska

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of clinical pathology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed, 1 pooled it
3.1field-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

78 citing papers in PubMed, 1 synthesis or guideline pooled it, 159 citations in OpenAlex.

  1. Pooled it
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  4. Pathology oncology research : POR · 2026
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  5. Review
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  11. Article
  12. Article
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  16. Review
  17. Article
  18. Connexins-Therapeutic Targets in Cancers.International journal of molecular sciences · 2020
    Review
  19. Article
  20. Article

18 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

7 authors at 1 institution in 1 country.

L Kanczuga-KodaDepartment of Pathology, Medical University of Bialystok, Poland.
S Sulkowski
A Lenczewski
M Koda
A Wincewicz
M Baltaziak
M Sulkowska
Medical University of Białystok · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGap junctions are intercellular channels composed of connexins, which mediate the direct passage of small molecules between neighbouring cells. They are involved in regulation of cell cycle, cell signalling, and differentiation, and probably invasion and metastasis. The role of connexins in the metastatic process is controversial, because some studies indicate that connexin expression is inversely correlated with metastatic capacity. In contrast, others demonstrate that connexins may be involved in metastasis. In addition, connexin status in breast cancer metastasis has not been widely studied.

methodsWe evaluated by immunohistochemistry the expression of connexin 26 (Cx26) and connexin 43 (Cx43) in primary breast tumours (PTs) and matched paired metastases to lymph nodes (MLNs).

resultsIn PTs, we observed predominantly cytoplasmic localisation of evaluated connexins, indicating alterations in connexin expression in breast cancer cells. We demonstrated that expression of Cx26 and Cx43 was increased in MLNs compared with PTs (p<0.00001 and p<0.001, for CX26 and Cx43, respectively). In addition, Cx26 and Cx43 negative PTs developed Cx26 and Cx43 positive MLNs. Furthermore, besides increased cytoplasmic staining, enhanced membranous localisation of Cx43, typical of normal cells, was found in MLNs. Additionally, membranous Cx26 expression appeared only in metastatic breast cancer cells.

conclusionsThese findings suggest that connexins may contribute to the efficient metastasising of breast cancer to the lymph nodes.

Indexed as

AdultAgedAged, 80 and overBreast NeoplasmsCarcinoma, Squamous CellCell MembraneConnexin 26Connexin 43ConnexinsCytoplasmFemaleHumansImmunohistochemistryLymphatic MetastasisMiddle AgedStatistics, NonparametricConnexin 26Connexin 43ConnexinsGJB2 protein, human

Identifiers

PMID16567471
PMCPMC1860373
OpenAlexW1992547890

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.