Evidence map›Paper›PMID 17645772›Full record

ArticleCancer science2007

Epigenetic silencing of claudin-6 promotes anchorage-independent growth of breast carcinoma cells.

Makoto Osanai, Masaki Murata, Hideki Chiba, Takashi Kojima, Norimasa Sawada

Open access · bronzeAbstract read
In one paragraph

Article in Cancer science, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
3.6field-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

42 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Claudin-4: A New Molecular Target for Epithelial Cancer Therapy.International journal of molecular sciences · 2023
    Review
  9. Article
  10. CLDN6: From Traditional Barrier Function to Emerging Roles in Cancers.International journal of molecular sciences · 2021
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Claudins in cancer: bench to bedside.Pflugers Archiv : European journal of physiology · 2017
    Review
  16. Claudin proteins, outside-in signaling, and carcinogenesis.Pflugers Archiv : European journal of physiology · 2017
    Review
  17. Article
  18. Review
  19. Article
  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

5 authors at 1 institution in 1 country.

Makoto OsanaiDepartment of Pathology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo 060-8556, Japan. osanaim@sapmed.ac.jp
Masaki Murata
Hideki Chiba
Takashi Kojima
Norimasa Sawada
Sapporo Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cancer cells often exhibit loss of functional tight junctions (TJ), and disruption of the TJ structure is associated with cancer development. However, whether loss of a certain type of claudin, an integral membrane protein of TJ, is involved in malignant phenotypes remains to be clarified. Based on a report that claudin-6 functions as a tumor suppressor for breast cancer, the authors show here that suppression of claudin-6 expression results in increased resistance to various apoptogens, and causally enhances anchorage-independent growth properties. Because claudin-6 expression is partially silenced by promoter CpG island hypermethylation in MCF7 breast carcinoma cells, a synergistic effect of a demethylator and histone deacetylase inhibitor up-regulates the expression of endogenous claudin-6, which is sufficient for apoptotic sensitization and abrogation of colony-forming efficacy. In addition, decreased expression of claudin-6 promotes cellular invasiveness and transendothelial migration, accompanied by an increase in matrix metalloproteinase activity. These data suggest that the methylator phenotype of claudin-6 may at least partially contribute to enhanced tumorigenic and invasive properties of breast carcinoma cells.

Indexed as

Cell AdhesionEpigenesis, GeneticGene SilencingAnoikisApoptosisBreast NeoplasmsCell MovementClaudinsColony-Forming Units AssayCpG IslandsDNA MethylationEndothelium, VascularFemaleHumansMembrane ProteinsNeoplasm Invasivenessclaudin 6ClaudinsMembrane ProteinsRNA, Small Interfering

Identifiers

PMID17645772
PMCPMC11158132
OpenAlexW1968272227

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.