Evidence map›Paper›PMID 42371976›Full record

ArticlePloS one2026

Cell-cell junction gene signatures as subtype-specific prognostic biomarkers in breast cancer.

Hayato Ishii, Kyoka Nishiyama, Ayaka Nakahara, Shoma Tamori, Shigeo Ohno, Kazunori Sasaki, Kazunori Akimoto

Abstract read
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Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Hayato IshiiDepartment of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan.
Kyoka NishiyamaDepartment of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan.
Ayaka NakaharaDepartment of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan.
Shoma TamoriDepartment of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan.ORCID https://orcid.org/0009-0003-3657-2043
Shigeo OhnoLaboratory of Cancer Biology, Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, Japan.
Kazunori SasakiLaboratory of Cancer Biology, Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, Japan.
Kazunori AkimotoDepartment of Medicinal and Life Sciences, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Tokyo, Japan.ORCID https://orcid.org/0000-0003-0618-1765

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cell-cell junctions (CCJs) are essential for maintaining epithelial integrity, and adhesion-related molecules have long been implicated in breast cancer progression. However, the subtype-specific prognostic significance of CCJ-related gene expression patterns within individual intrinsic breast cancer subtypes has not been systematically characterized. We analyzed 179 genes annotated to the Gene Ontology term "cell-cell junction organization" (GO:0045216) across intrinsic breast cancer subtypes using the METABRIC and The Cancer Genome Atlas (TCGA) datasets. Subtype-specific prognostic CCJ genes were identified using multivariate Cox proportional hazards models for disease-specific survival and integrated into CCJ gene expression signatures. The prognostic performance was validated in an independent cohort (SCAN-B). Elevated CCJ signature scores were associated with poorer survival across subtypes, with particularly strong effects in Luminal B (LumB) and Basal-like (Basal) tumors. Person-year analyses indicated that high CCJ scores predicted an increased incidence of early recurrence (0-5 years) in these aggressive subtypes. Pathway enrichment analyses revealed that high-score tumors exhibited upregulation of extracellular matrix organization and matrisome-related pathways. Single-cell RNA sequencing further demonstrated that LumB CCJ genes (e.g., PARD6B, CDH3) were predominantly expressed in tumor epithelial cells, whereas the Basal CCJ signature reflected contributions from epithelial (e.g., MARVELD2) and endothelial (e.g., RAMP2) cells. Collectively, CCJ signatures stratify prognosis and capture subtype-specific cellular and microenvironmental features in breast cancer.

Indexed as

Biomarkers, TumorBreast NeoplasmsIntercellular JunctionsFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansPrognosisTranscriptomeBiomarkers, Tumor

Identifiers

PMID42371976
PMCPMC13313366

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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.