Evidence map›Paper›PMID 34830485›Full record

ArticleInternational journal of molecular sciences2021

Connexin46 Expression Enhances Cancer Stem Cell and Epithelial-to-Mesenchymal Transition Characteristics of Human Breast Cancer MCF-7 Cells.

Rodrigo A Acuña, Manuel Varas-Godoy, Diego Herrera-Sepulveda, Mauricio A Retamal

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

18 citing papers in PubMed, 23 citations in OpenAlex.

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  14. A Quantitative Assay for CaInternational journal of molecular sciences · 2022
    Article
  15. Connexin Mutations and Hereditary Diseases.International journal of molecular sciences · 2022
    Review
  16. Review
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  18. Review
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

4 authors at 2 institutions in 1 country.

Rodrigo A AcuñaCentro de Medicina Regenerativa, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago 7780272, Chile.ORCID 0000-0002-2033-3107
Manuel Varas-GodoyCentro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebastian, Santiago 7510157, Chile.ORCID 0000-0001-5857-4793
Diego Herrera-SepulvedaCarrera de Medicina Universidad del Desarrollo, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago 7780272, Chile.
Mauricio A RetamalCentro de Fisiología Celular e Integrativa, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7780272, Chile.ORCID 0000-0003-2562-6686
Universidad del Desarrollo · CLSan Sebastián University · CL

Funding

Fondo Nacional de Desarrollo Científico y Tecnológico 11200835Fondo Nacional de Desarrollo Científico y Tecnológico 1160227Fondo Nacional de Desarrollo Científico y Tecnológico 1190928
6 · The paper itself

Abstract

Connexins (Cxs) are a family of proteins that form two different types of ion channels: hemichannels and gap junction channels. These channels participate in cellular communication, enabling them to share information and act as a synchronized syncytium. This cellular communication has been considered a strong tumor suppressor, but it is now recognized that some type of Cxs can be pro-tumorigenic. For example, Cx46 expression is increased in human breast cancer samples and correlates with cancer stem cell (CSC) characteristics in human glioma. Thus, we explored whether Cx46 and glioma cells, can set up CSC and epithelial-to-mesenchymal transition (EMT) properties in a breast cancer cell line. To this end, we transfected MCF-7 cells with Cx46 attached to a green fluorescent protein (Cx46GFP), and we determined how its expression orchestrates both the gene-expression and functional changes associated with CSC and EMT. We observed that Cx46GFP increased Sox2, Nanog, and OCT4 mRNA levels associated with a high capacity to form monoclonal colonies and tumorspheres. Similarly, Cx46GFP increased the mRNA levels of n-cadherin, Vimentin, Snail and Zeb1 to a higher migratory and invasive capacity. Furthermore, Cx46GFP transfected in MCF-7 cells induced the release of higher amounts of VEGF, which promoted angiogenesis in HUVEC cells. We demonstrated for the first time that Cx46 modulates CSC and EMT properties in breast cancer cells and thus could be relevant in the design of future cancer therapies.

Indexed as

Breast NeoplasmsCell Line, TumorConnexinsEpithelial-Mesenchymal TransitionFemaleGene Expression Regulation, NeoplasticHumansHuman Umbilical Vein Endothelial CellsMCF-7 CellsNanog Homeobox ProteinNeoplastic Stem CellsSOXB1 Transcription FactorsVascular Endothelial Growth Factor AZinc Finger E-box-Binding Homeobox 1ConnexinsGJA3 protein, humanNanog Homeobox ProteinSOX2 protein, humanSOXB1 Transcription FactorsVascular Endothelial Growth Factor AVEGFA protein, humanZEB1 protein, humanZinc Finger E-box-Binding Homeobox 1breast cancercancer stem cellsConnexin46epithelial-to-mesenchymal transitionstemness

Identifiers

PMID34830485
PMCPMC8624448
OpenAlexW3214739901

What Socratic holds

Textmetadata
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 Socratic graph.