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Published in: BMC Cancer 1/2018

Open Access 01-12-2018 | Research article

High-level cytoplasmic claudin 3 expression is an independent predictor of poor survival in triple-negative breast cancer

Authors: Anniina Jääskeläinen, Ylermi Soini, Arja Jukkola-Vuorinen, Päivi Auvinen, Kirsi-Maria Haapasaari, Peeter Karihtala

Published in: BMC Cancer | Issue 1/2018

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Abstract

Background

The subtype of claudin-low breast cancer can be reliably determined only by gene-expression profiling. Attempts have been made to develop immunohistochemical surrogates, which nearly always focus on membranous claudin expression.

Methods

We assessed the immunohistochemical expression of both membranous and cytoplasmic claudins 3, 4 and 7 in a series of 197 non-metastatic breast cancers, enriched with triple-negative breast cancers (TNBCs; 60%). The expression of epithelial-to-mesenchymal transition-regulating transcription factors Sip1, Zeb1 and vimentin had previously been determined in the same material.

Results

In multivariate analysis, strong cytoplasmic claudin 3 expression was associated with poor relapse-free survival (RFS), disease-free survival, distant disease-free survival, breast cancer-specific survival and overall survival among TNBC patients (for RFS, RR 5.202, 95% CI 1.210–22.369, p = 0.027, vs. T-class, RR 0.663, 95% CI 0.168–2.623, p = 0.558, and N-class, RR 3.940, 95% CI 0.933–16.631, p = 0.062). Cytoplasmic claudin 3 expression was also associated with strong nuclear Sip1 expression (p = 0.000053), TNBC phenotype (p = 0.012) and within them, non-basal-like phenotype (p = 0.026). Cytoplasmic claudin 7 was associated with dismal RFS (RR 6.328, 95% CI 1.401–28.593, p = 0.016, vs. T-class, RR 0.692, 95% CI 0.242–1.982, p = 0.493, and N-class, RR 2.981, 95% CI 1.1016–8.749, p = 0.047). Low cytoplasmic expression of claudins 3, 4 and 7 together also predicted poor RFS (RR 6.070, 95% CI 1.347–27.363, p = 0.019, vs. T-class, RR 0.677, 95% CI 0.237–1.934, p = 0.467, and N-class, RR 3.167, 95% CI 1.079–9.290, p = 0.036).

Conclusions

Immunohistochemical expression levels of cytoplasmic claudins 3 and 7 appear to be novel prognostic factors in TNBC.
Literature
11.
go back to reference Todd MC, Petty HM, King JM, Piana Marshall BN, Sheller RA, Cuevas ME. Overexpression and delocalization of claudin-3 protein in MCF-7 and MDA-MB-415 breast cancer cell lines. Oncol Lett. 2015;10:156–62.CrossRefPubMedPubMedCentral Todd MC, Petty HM, King JM, Piana Marshall BN, Sheller RA, Cuevas ME. Overexpression and delocalization of claudin-3 protein in MCF-7 and MDA-MB-415 breast cancer cell lines. Oncol Lett. 2015;10:156–62.CrossRefPubMedPubMedCentral
14.
22.
go back to reference Salah-Eddin Al-Batran, Martin H. Schuler, Zanete Zvirbule et al. FAST: An international, multicenter, randomized, phase II trial of epirubicin, oxaliplatin, and capecitabine (EOX) with or without IMAB362, a first-in-class anti-CLDN18.2 antibody, as first-line therapy in patients with advanced CLDN18.2+ gastric and gast. J Clin Oncol. 2016;34(suppl; abstr LBA4001). Salah-Eddin Al-Batran, Martin H. Schuler, Zanete Zvirbule et al. FAST: An international, multicenter, randomized, phase II trial of epirubicin, oxaliplatin, and capecitabine (EOX) with or without IMAB362, a first-in-class anti-CLDN18.2 antibody, as first-line therapy in patients with advanced CLDN18.2+ gastric and gast. J Clin Oncol. 2016;34(suppl; abstr LBA4001).
24.
go back to reference Lakhani SR. WHO classification of tumours of the breast / edited by Sunil R. Lakhani ... [et al.]. Lyon: International Agency for Research on Cancer, 2012; 2012. Lakhani SR. WHO classification of tumours of the breast / edited by Sunil R. Lakhani ... [et al.]. Lyon: International Agency for Research on Cancer, 2012; 2012.
Metadata
Title
High-level cytoplasmic claudin 3 expression is an independent predictor of poor survival in triple-negative breast cancer
Authors
Anniina Jääskeläinen
Ylermi Soini
Arja Jukkola-Vuorinen
Päivi Auvinen
Kirsi-Maria Haapasaari
Peeter Karihtala
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2018
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/s12885-018-4141-z

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