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Zhuang X, Martin TA, Ruge F, Zeng J(J, Li X(A, Khan E, Dou Q, Davies E, Jiang WG. Expression of Claudin-9 (CLDN9) in Breast Cancer, the Clinical Significance in Connection with Its Subcoat Anchorage Proteins ZO-1 and ZO-3 and Impact on Drug Resistance. Biomedicines 2023; 11:3136. [PMID: 38137355 PMCID: PMC10740911 DOI: 10.3390/biomedicines11123136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
(1) Introduction: Claudin-9 (CLDN9) is a member of the claudin protein family, a critical transmembrane protein family for tight junctions that are implemented in the progression of numerous cancer types. The present study investigated the role that CLDN9, along with the subcoat proteins, Zonula Occludens (ZOs), plays in clinical breast cancer and subsequent impact on drug response of patients. (2) Methods: CLDN9 protein and CLDN9 transcript were determined and correlated with clinical and pathological indicators, together with the status of hormonal receptors. The levels of CLDN9 transcript were also assessed against the therapeutic responses of the patients to chemotherapies by using a dataset from the TCGA database. Breast cancer cell models, representing different molecular subtypes of breast cancer, with differential expression of CLDN9 were created and used to assess the biological impact and response to chemotherapeutic drugs. (3) Results: Breast cancer tissues expressed significantly higher levels of the CLDN9, with the high levels being associated with shorter survival. CLDN9 was significantly correlated with its anchorage proteins ZO-1 and ZO-3. Integrated expression of CLDN9, ZO-1 and ZO-3 formed a signature that was significantly linked to overall survival (OS) (p = 0.013) and relapse-free survival (RFS) (p = 0.024) in an independent matter. CLDN9 transcript was significantly higher in patients who were resistant to chemotherapies (p < 0.000001). CLDN9 connection to chemoresistance was particularly prominent in patients of ER-positive (ER(+)), Her-2-negative((Her-2(-)), ER(+)/Her-2(-) and triple-negative breast cancers (TNBCs), but not in patients with HER-2-positive tumors. In Her-2-negative MCF7 and MDA-MB-231 cancer cells, loss of CLDN9 significantly increased sensitivity to several chemotherapeutic drugs including paclitaxel, gemcitabine and methotrexate, which was not seen in Her-2(+) SKBR3 cells. However, suppressing Her-2 using neratinib, a permanent Her-2 inhibitor, sensitized cellular response to these chemodrugs in cells with CLDN9 knockdown. (4) Conclusions: CLDN9 is an important prognostic indicator for patients with breast cancer and also a pivotal factor in assessing patient responses to chemotherapies. Her-2 is a negating factor for the treatment response prediction value by CLDN9 and negating Her-2 and CLDN9 may enhance breast cancer cellular response to chemotherapeutic drugs.
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Affiliation(s)
- Xinguo Zhuang
- School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (X.Z.); (T.A.M.); (F.R.); (X.L.); or (Q.D.)
- Department of Clinical Laboratory, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, China
| | - Tracey A. Martin
- School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (X.Z.); (T.A.M.); (F.R.); (X.L.); or (Q.D.)
| | - Fiona Ruge
- School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (X.Z.); (T.A.M.); (F.R.); (X.L.); or (Q.D.)
| | - Jianyuan (Jimmy) Zeng
- School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (X.Z.); (T.A.M.); (F.R.); (X.L.); or (Q.D.)
| | - Xinyu (Amber) Li
- School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (X.Z.); (T.A.M.); (F.R.); (X.L.); or (Q.D.)
| | - Elyas Khan
- Karmanos Cancer Institute, Department of Oncology, School of Medicine, Wayne State University, Detroit, MI 48201, USA;
| | - Qingping Dou
- School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (X.Z.); (T.A.M.); (F.R.); (X.L.); or (Q.D.)
- Karmanos Cancer Institute, Department of Oncology, School of Medicine, Wayne State University, Detroit, MI 48201, USA;
| | - Eleri Davies
- Wales Breast Centre, University Llandough Hospital, Cardiff and Vales University Health Board, Cardiff CF64 2XX, UK;
| | - Wen G. Jiang
- School of Medicine, Cardiff University, Cardiff CF14 4XN, UK; (X.Z.); (T.A.M.); (F.R.); (X.L.); or (Q.D.)
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Yadav R, Kumar Y, Dahiya D, Bhatia A. Claudins: The Newly Emerging Targets in Breast Cancer. Clin Breast Cancer 2022; 22:737-752. [PMID: 36175290 DOI: 10.1016/j.clbc.2022.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 09/04/2022] [Indexed: 01/25/2023]
Abstract
Claudin-low breast cancers are recently described entities showing low expression of certain claudins and cell adhesion molecules. Claudins constitute the backbone of tight junctions (TJs) formed between 2 cells. Their dysregulation plays a vital role in tumorigenesis. First part of the article focuses on the role of claudins in the TJ organization, their structural-functional characteristics, and post-transcriptional and translational modifications. The latter part of the review attempts to summarize existing knowledge regarding the status of claudins in breast cancer. The article also provides an overview of the effect of claudins on tumor progression, metastasis, stemness, chemotherapy resistance, and their crosstalk with relevant signaling pathways in breast cancer. Claudins can act as 2-edged swords in tumors. Some claudins have either tumor-suppressive/ promoting action, while others work as both in a context-dependent manner. Claudins regulate many important events in breast cancer. However, the intricacies involved in their activity are poorly understood. Post-translational modifications in claudins and their impact on TJ integrity, function, and tumor behavior are still unclear. Although their role in adverse events in breast cancer is recognized, their potential to serve as relevant targets for future therapeutics, especially for difficult-to-treat subtypes of the above malignancy, remains to be explored.
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Affiliation(s)
- Reena Yadav
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Yashwant Kumar
- Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Divya Dahiya
- Department of General Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Alka Bhatia
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
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Lemesle M, Geoffroy M, Alpy F, Tomasetto CL, Kuntz S, Grillier-Vuissoz I. CLDN1 Sensitizes Triple-Negative Breast Cancer Cells to Chemotherapy. Cancers (Basel) 2022; 14:cancers14205026. [PMID: 36291810 PMCID: PMC9599637 DOI: 10.3390/cancers14205026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/05/2022] [Accepted: 10/11/2022] [Indexed: 11/25/2022] Open
Abstract
Simple Summary Triple-negative breast cancer (TNBC) treatment represents a major challenge in oncology. TNBC evolves into chemotherapy resistance for 60 to 70% of the patients. About 77% of the TNBC displays a lack of claudin-1 (CLDN1), a major tight junction component. We demonstrated that CLDN1 increased the sensitivity of TNBC cell lines to the main chemotherapeutic agents commonly used for breast cancer treatment. Our data support the idea that CLDN1 may be a good predictive chemotherapy response marker to help therapeutic management of TNBC patients. In longer terms, this study could allow new treatment protocols creation aimed to induce CLDN1 expression in TNBCs to increase their sensitivity to chemotherapy. Abstract Triple-negative breast cancer (TNBC) is an aggressive subtype that constitutes 15–20% of breast cancer cases worldwide. Current therapies often evolve into chemoresistance and lead to treatment failure. About 77% of the TNBC lacks claudin-1 (CLDN1) expression, a major tight junction component, and this absence is correlated with poorer prognostic. Little is known about CLDN1 role on the chemosensitivity of breast cancer. Our clinical data analysis reveals that CLDN1 low expression is correlated to a poor prognostic in TNBC patients. Next, the sensitivity of various TNBC “claudin-1-high” or “claudin-1-low” cells to three compounds belonging to the main class of chemotherapeutic agents commonly used for the treatment of TNBC patients: 5-fluorouracil (5-FU), paclitaxel (PTX) and doxorubicin (DOX). Using RNA interference and stable overexpressing models, we demonstrated that CLDN1 expression increased the sensitivity of TNBC cell lines to these chemotherapeutic agents. Taken together, our data established the important role of CLDN1 in TNBC cells chemosensitivity and supported the hypothesis that CLDN1 could be a chemotherapy response predictive marker for TNBC patients. This study could allow new treatment protocols creation aimed to induce CLDN1 expression in TNBCs to increase their sensitivity to chemotherapy.
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Affiliation(s)
- Marine Lemesle
- CRAN, UMR 7039, Université de Lorraine, 54506 Vandoeuvre-lès-Nancy, France
| | - Marine Geoffroy
- CRAN, UMR 7039, Université de Lorraine, 54506 Vandoeuvre-lès-Nancy, France
| | - Fabien Alpy
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Centre National de la Recherche Scientifique (CNRS), UMR7104 and Université de Strasbourg, 67400 Illkirch, France
| | - Catherine-Laure Tomasetto
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Institut National de la Santé et de la Recherche Médicale (INSERM), U1258, Centre National de la Recherche Scientifique (CNRS), UMR7104 and Université de Strasbourg, 67400 Illkirch, France
| | - Sandra Kuntz
- CRAN, UMR 7039, Université de Lorraine, 54506 Vandoeuvre-lès-Nancy, France
| | - Isabelle Grillier-Vuissoz
- CRAN, UMR 7039, Université de Lorraine, 54506 Vandoeuvre-lès-Nancy, France
- Correspondence: ; Tel.: +33-(0)3-72-74-51-84
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Kramer Z, Kenessey I, Gángó A, Lendvai G, Kulka J, Tőkés AM. Cell polarity and cell adhesion associated gene expression differences between invasive micropapillary and no special type breast carcinomas and their prognostic significance. Sci Rep 2021; 11:18484. [PMID: 34531452 PMCID: PMC8446082 DOI: 10.1038/s41598-021-97347-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/18/2021] [Indexed: 12/11/2022] Open
Abstract
Invasive micropapillary carcinoma of the breast (IMPC) has been in the focus of several studies given its specific histology and clinicopathological course. We analysed mRNA expression profiles and the prognostic value of 43 genes involved in cell polarity, cell-adhesion and epithelial-mesenchymal transition (EMT) in IMPC tumors and compared them to invasive breast carcinomas of no special type (IBC-NST). IMPCs (36 cases), IBC-NSTs (36 cases) and mixed IMPC-IBC NSTs (8 cases) were investigated. mRNA expression level of selected genes were analysed using the NanoString nCounter Analysis System. Distant metastases free survival (DMFS) intervals were determined. Statistical analysis was performed using Statistica 13.5 software. Twelve genes showed significantly different expression in the IMPC group. There was no difference in DMFS according to histological type (IBC-NST vs. IMPC). High CLDN3, PALS1 and low PAR6 expression levels in the entire cohort were associated with shorter DMFS, and PALS1 was proven to be grade independent prognostic factor. Positive lymph node status was associated with higher levels of AKT1 expression. Differences in gene expression in IMPC versus IBC-NST may contribute to the unique histological appearance of IMPCs. No marked differences were observed in DMFS of the two groups. Altered gene expression in the mTOR signaling pathway in both tumor subtypes highlights the potential benefit from AKT/mTOR inhibitors in IMPCs similarly to IBC-NSTs.
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Affiliation(s)
- Zsófia Kramer
- 2nd Department of Pathology, Semmelweis University, Üllői Street 93, Budapest, 1091, Hungary
| | - István Kenessey
- 2nd Department of Pathology, Semmelweis University, Üllői Street 93, Budapest, 1091, Hungary
| | - Ambrus Gángó
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői Street 26, Budapest, 1085, Hungary
| | - Gábor Lendvai
- 2nd Department of Pathology, Semmelweis University, Üllői Street 93, Budapest, 1091, Hungary
| | - Janina Kulka
- 2nd Department of Pathology, Semmelweis University, Üllői Street 93, Budapest, 1091, Hungary.
| | - Anna-Mária Tőkés
- 2nd Department of Pathology, Semmelweis University, Üllői Street 93, Budapest, 1091, Hungary
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5
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Lee O, Bosland MC, Wang M, Shidfar A, Hosseini O, Xuei X, Patel P, Schipma MJ, Helenowski I, Kim JJ, Clare SE, Khan SA. Selective progesterone receptor blockade prevents BRCA1-associated mouse mammary tumors through modulation of epithelial and stromal genes. Cancer Lett 2021; 520:255-266. [PMID: 34329741 DOI: 10.1016/j.canlet.2021.07.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/27/2021] [Accepted: 07/21/2021] [Indexed: 01/17/2023]
Abstract
Pharmacological approaches to breast cancer risk-reduction for BRCA1 mutation carriers would provide an alternative to mastectomy. BRCA1-deficiency dysregulates progesterone signaling, promoting tumorigenesis. Selective progesterone receptor (PR) modulators (SPRMs) are therefore candidate prevention agents. However, their efficacy varies in different BRCA1-deficient mouse models. We examined chemopreventive efficacy of telapristone acetate (TPA), ulipristal acetate (UPA) and mifepristone (MFP) in mice with a conditional knockout of the Brca1 C-terminal domain. The SPRMs displayed a spectrum of efficacy: UPA was most effective, TPA less, and MFP ineffective. Compared to no-treatment controls, UPA reduced tumorigenesis (p = 0.04), and increased tumor latency (p = 0.03). In benign mammary glands, UPA decreased Ki67 (p < 0.001) and increased PR expression (p < 0.0001). RNA sequencing analysis revealed distinct gene expression in response to UPA and MFP. UPA downregulated glycolysis and extracellular matrix-inflammation genes (Fn1, Ptgs2, Tgfb2, Tgfb3) whereas MFP downregulated claudin genes and upregulated amino acid metabolism and inflammation genes. The anti-glucocorticoid effects of MFP appeared not to be tumor-protective, while altering estrogen receptor signaling and NF-kB activation. Our study points to an important role of epithelial PR and its paracrine action on the microenvironment in BRCA1-deficient mammary tumorigenesis, and prevention.
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Affiliation(s)
- Oukseub Lee
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - Maarten C Bosland
- Department of Pathology, University of Illinois at Chicago, Chicago, IL, USA
| | - Minhua Wang
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Ali Shidfar
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Omid Hosseini
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Xiaoling Xuei
- The Center for Medical Genomics, Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Priyam Patel
- Quantitative Data Science Core, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Matthew J Schipma
- Quantitative Data Science Core, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Irene Helenowski
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - J Julie Kim
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Susan E Clare
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Seema A Khan
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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Kumar N, Tandon M, Chintamani CM, Saxena S. Immunoexpression of claudin-4 and correlation with estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2-neu in breast cancer. J Cancer Res Ther 2021; 18:1766-1770. [DOI: 10.4103/jcrt.jcrt_1909_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Claudin 1 inhibits cell migration and increases intercellular adhesion in triple-negative breast cancer cell line. Mol Biol Rep 2020; 47:7643-7653. [PMID: 32979166 DOI: 10.1007/s11033-020-05835-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 09/09/2020] [Indexed: 12/12/2022]
Abstract
Triple-negative "claudin 1 low" subtype represents around 15% of breast cancer and displays poor prognosis. The loss of claudin 1 is correlated with increased invasiveness and higher recurrence of the disease. Claudin 1 constitutes the backbone of the tight junction and is involved in cell-cell adhesion and migration processes. However, studies showed a controversial role of claudin 1 in cell migration. In this study, we aimed to clarify the effect of claudin 1 on migration of mesenchymal triple-negative breast cancer cells (TNBC). We reported that transient over expression of claudin 1 in MDA-MB-231 and Hs578T "claudin 1 low" TNBC cells inhibited cell migration using wound healing and transwell migration assays. In order to investigate more specifically the involvement of claudin 1, we generated stable MDA-MB-231 clones overexpressing claudin 1. Interestingly, the level of claudin 1 was correlated to the inhibition of cell migration and to the increase of cell-cell aggregation associated with enhanced formation of β-catenin adherens junction and occludin tight junction. Finally, we reported for the first time the key role of claudin 1 in the inhibition of cell migration process associated with the disappearance of stress fibers. These data suggest that re-expression of claudin 1 could be a promising strategy for regulating the migration of TNBC which no longer express claudin 1.
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Uc PY, Miranda J, Raya-Sandino A, Alarcón L, Roldán ML, Ocadiz-Delgado R, Cortés-Malagón EM, Chávez-Munguía B, Ramírez G, Asomoza R, Shoshani L, Gariglio P, González-Mariscal L. E7 oncoprotein from human papillomavirus 16 alters claudins expression and the sealing of epithelial tight junctions. Int J Oncol 2020; 57:905-924. [PMID: 32945372 PMCID: PMC7473757 DOI: 10.3892/ijo.2020.5105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 04/16/2020] [Indexed: 11/24/2022] Open
Abstract
Tight junctions (TJs) are cell-cell adhesion structures frequently altered by oncogenic transformation. In the present study the role of human papillomavirus (HPV) 16 E7 oncoprotein on the sealing of TJs was investigated and also the expression level of claudins in mouse cervix and in epithelial Madin-Darby Canine Kidney (MDCK) cells. It was found that there was reduced expression of claudins -1 and -10 in the cervix of 7-month-old transgenic K14E7 mice treated with 17β-estradiol (E2), with invasive cancer. In addition, there was also a transient increase in claudin-1 expression in the cervix of 2-month-old K14E7 mice, and claudin-10 accumulated at the border of cells in the upper layer of the cervix in FvB mice treated with E2, and in K14E7 mice treated with or without E2. These changes were accompanied by an augmented paracellular permeability of the cervix in 2- and 7-monthold FvB mice treated with E2, which became more pronounced in K14E7 mice treated with or without E2. In MDCK cells the stable expression of E7 increased the space between adjacent cells and altered the architecture of the monolayers, induced the development of an acute peak of transepithelial electrical resistance accompanied by a reduced expression of claudins -1, -2 and -10, and an increase in claudin-4. Moreover, E7 enhances the ability of MDCK cells to migrate through a 3D matrix and induces cell stiffening and stress fiber formation. These observations revealed that cell transformation induced by HPV16 E7 oncoprotein was accompanied by changes in the pattern of expression of claudins and the degree of sealing of epithelial TJs.
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Affiliation(s)
- Perla Yaceli Uc
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Jael Miranda
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Arturo Raya-Sandino
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Lourdes Alarcón
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - María Luisa Roldán
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Rodolfo Ocadiz-Delgado
- Department of Genetics and Molecular Biology, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Enoc Mariano Cortés-Malagón
- Research Unit on Genetics and Cancer, Research Division, Hospital Juárez de México, Mexico City 07760, Mexico
| | - Bibiana Chávez-Munguía
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Georgina Ramírez
- Department of Electrical Engineering, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - René Asomoza
- Department of Electrical Engineering, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Liora Shoshani
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Patricio Gariglio
- Department of Genetics and Molecular Biology, Center for Research and Advanced Studies, Mexico City 07360, Mexico
| | - Lorenza González-Mariscal
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies, Mexico City 07360, Mexico
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Claudins: New Players in Human Fertility and Reproductive System Cancers. Cancers (Basel) 2020; 12:cancers12030711. [PMID: 32197343 PMCID: PMC7140004 DOI: 10.3390/cancers12030711] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/15/2020] [Accepted: 03/17/2020] [Indexed: 12/12/2022] Open
Abstract
Claudins are major integral proteins of tight junctions (TJs), the apical cell-cell adhesions that enable maintaining polarity of epithelial cells, their differentiation, and cell signaling. A number of studies have indicated that claudins might play a crucial role in both physiology and pathogenesis. Their tissue-specific expression was originally linked to the development of different types of cancer and triggered a hope to use them as diagnostic or prognostic markers. However, it seems that their expression is more complex than that, and undoubtedly, claudins participate in one of the most important molecular events in cells. This review summarizes the recent research evaluating the role of claudins in fertility and the most common endocrine-dependent cancers in the reproductive system and highlights the crucial role of claudins both in human fertility and the most common cancers.
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Yamamoto D, Kayamori K, Sakamoto K, Tsuchiya M, Ikeda T, Harada H, Yoda T, Watabe T, Hara-Yokoyama M. Intracellular claudin-1 at the invasive front of tongue squamous cell carcinoma is associated with lymph node metastasis. Cancer Sci 2019; 111:700-712. [PMID: 31769164 PMCID: PMC7004554 DOI: 10.1111/cas.14249] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 11/12/2019] [Accepted: 11/18/2019] [Indexed: 12/15/2022] Open
Abstract
Claudins are the major component of tight junctions, which form a primary barrier to paracellular diffusion and maintain cell polarity in normal epithelia and endothelia. In cancer cells, claudins play additional roles besides serving as components of the tight junctions, and participate in anoikis or invasion. Among the claudin family proteins, claudin‐1 has the most promising potential, both diagnostically and prognostically, in many types of cancers, including oral, gastric, liver, and colon cancers. However, conflicting results have been reported in relation to the degree of claudin‐1 expression and the prognosis, suggesting that the expression level of claudin‐1 alone is not sufficient to analyze the relationship between claudin‐1 and cancer progression. As endocytic trafficking of claudin‐1 has been reported in several epithelial cell types in vitro, we aimed to determine whether intracellular localization of claudin‐1 is the missing aspect between claudin‐1 and cancer. We investigated the expression of claudin‐1 in 83 tongue squamous cell carcinoma (TSCC) pathological specimens. Although the expression level of claudin‐1 based on immunohistochemistry was not associated with TSCC progression, within the high claudin‐1 expression group, the incidence of intracellular localization of claudin‐1 was correlated with cervical lymph node metastasis. In an in vitro experiment, claudin‐1 was constitutively internalized in TSCC‐derived cells. Motility of TSCC‐derived cells was increased by deficiency of claudin‐1, suggesting that the decrease in cell‐surface claudin‐1 promoted the cell migration. Therefore, intracellular localization of claudin‐1 at the invasion front may represent a promising diagnostic marker of TSCC.
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Affiliation(s)
- Daisuke Yamamoto
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kou Kayamori
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kei Sakamoto
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Maiko Tsuchiya
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tohru Ikeda
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiroyuki Harada
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tetsuya Yoda
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tetsuro Watabe
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Miki Hara-Yokoyama
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Tabariès S, McNulty A, Ouellet V, Annis MG, Dessureault M, Vinette M, Hachem Y, Lavoie B, Omeroglu A, Simon HG, Walsh LA, Kimbung S, Hedenfalk I, Siegel PM. Afadin cooperates with Claudin-2 to promote breast cancer metastasis. Genes Dev 2019; 33:180-193. [PMID: 30692208 PMCID: PMC6362814 DOI: 10.1101/gad.319194.118] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Accepted: 11/19/2018] [Indexed: 01/04/2023]
Abstract
Tabariès et al. show that signaling downstream from a Claudin-2/Afadin complex enables the efficient formation of breast cancer metastases. Claudin-2 promotes breast cancer liver metastasis by enabling seeding and early cancer cell survival. We now demonstrate that the PDZ-binding motif of Claudin-2 is necessary for anchorage-independent growth of cancer cells and is required for liver metastasis. Several PDZ domain-containing proteins were identified that interact with the PDZ-binding motif of Claudin-2 in liver metastatic breast cancer cells, including Afadin, Arhgap21, Pdlim2, Pdlim7, Rims2, Scrib, and ZO-1. We specifically examined the role of Afadin as a potential Claudin-2-interacting partner that promotes breast cancer liver metastasis. Afadin associates with Claudin-2, an interaction that requires the PDZ-binding motif of Claudin-2. Loss of Afadin also impairs the ability of breast cancer cells to form colonies in soft agar and metastasize to the lungs or liver. Immunohistochemical analysis of Claudin-2 and/or Afadin expression in 206 metastatic breast cancer tumors revealed that high levels of both Claudin-2 and Afadin in primary tumors were associated with poor disease-specific survival, relapse-free survival, lung-specific relapse, and liver-specific relapse. Our findings indicate that signaling downstream from a Claudin-2/Afadin complex enables the efficient formation of breast cancer metastases. Moreover, combining Claudin-2 and Afadin as prognostic markers better predicts the potential of breast cancer to metastasize to soft tissues.
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Affiliation(s)
- Sébastien Tabariès
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Medicine, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Alexander McNulty
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Biochemistry, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Véronique Ouellet
- Institut du Cancer de Montréal, Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec H2X 0A9, Canada
| | - Matthew G Annis
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Medicine, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Mireille Dessureault
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Medicine, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Maude Vinette
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Medicine, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Yasmina Hachem
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Biochemistry, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Brennan Lavoie
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Medicine, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Atilla Omeroglu
- Department of Pathology, McGill University Health Centre, Montréal, Québec H4A 3J1, Canada
| | - Hans-Georg Simon
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60614, USA.,Stanley Manne Children's Research Institute, Chicago, Illinois 60614, USA
| | - Logan A Walsh
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Human Genetics, McGill University, Montréal, Québec H3A 1A3, Canada
| | - Siker Kimbung
- Division of Oncology, Department of Clinical Sciences, Lund University, Lund SE 221 00, Sweden
| | - Ingrid Hedenfalk
- Division of Oncology, Department of Clinical Sciences, Lund University, Lund SE 221 00, Sweden
| | - Peter M Siegel
- Goodman Cancer Research Centre, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Medicine, McGill University, Montréal, Québec H3A 1A3, Canada.,Department of Biochemistry, McGill University, Montréal, Québec H3A 1A3, Canada
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12
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Du W, Xu X, Niu Q, Zhang X, Wei Y, Wang Z, Zhang W, Yan J, Ru Y, Fu Z, Li X, Jiang Y, Ma Z, Zhang Z, Yao Z, Liu Z. Spi-B-Mediated Silencing of Claudin-2 Promotes Early Dissemination of Lung Cancer Cells from Primary Tumors. Cancer Res 2017; 77:4809-4822. [PMID: 28754672 DOI: 10.1158/0008-5472.can-17-0020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 06/06/2017] [Accepted: 07/19/2017] [Indexed: 11/16/2022]
Abstract
Dissociation from epithelial sheets and invasion through the surrounding stroma are critical early events during epithelial cancer metastasis. Here we find that a lymphocyte lineage-restricted transcription factor, Spi-B, is frequently expressed in human lung cancer tissues. The Spi-B-expressing cancer cells coexpressed vimentin but repressed E-cadherin and exhibited invasive behavior. Increased Spi-B expression was associated with tumor grade, lymphatic metastasis, and short overall survival. Mechanistically, Spi-B disrupted intercellular junctions and enhanced invasiveness by reconfiguring the chromatin structure of the tight junction gene claudin-2 (CLDN2) and repressing its transcription. These data suggest that Spi-B participates in mesenchymal invasion, linking epithelial cancer metastasis with a lymphatic transcriptional program. Cancer Res; 77(18); 4809-22. ©2017 AACR.
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MESH Headings
- Adenocarcinoma/genetics
- Adenocarcinoma/metabolism
- Adenocarcinoma/secondary
- Animals
- Apoptosis
- Biomarkers, Tumor
- Carcinoma, Lewis Lung/genetics
- Carcinoma, Lewis Lung/metabolism
- Carcinoma, Lewis Lung/secondary
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/secondary
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/metabolism
- Carcinoma, Squamous Cell/secondary
- Cell Proliferation
- Claudin-2/genetics
- Claudin-2/metabolism
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/metabolism
- Gene Expression Regulation, Neoplastic
- Humans
- Intercellular Junctions
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Mice
- Mice, Inbred C57BL
- Neoplasm Invasiveness
- Neoplasm Staging
- Prognosis
- Small Cell Lung Carcinoma/genetics
- Small Cell Lung Carcinoma/metabolism
- Small Cell Lung Carcinoma/secondary
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Wei Du
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Xing Xu
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Qing Niu
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Xuexi Zhang
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yiliang Wei
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Ziqiao Wang
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Wei Zhang
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jun Yan
- Department of Pathology, Tianjin First Center Hospital, Tianjin, China
| | - Yongxin Ru
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Zheng Fu
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Tianjin Medical University, Tianjin, China
| | - Xiaobo Li
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yuan Jiang
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Tianjin Medical University, Tianjin, China
| | - Zhenyi Ma
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Tianjin Medical University, Tianjin, China
| | - Zhenfa Zhang
- Department of Lung Cancer Center, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Zhi Yao
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Tianjin Medical University, Tianjin, China
| | - Zhe Liu
- Department of Immunology, Biochemistry and Molecular Biology, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Tianjin Medical University, Tianjin, China
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13
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Pro-apoptotic effect of Δ2-TGZ in “claudin-1-low” triple-negative breast cancer cells: involvement of claudin-1. Breast Cancer Res Treat 2017; 165:517-527. [DOI: 10.1007/s10549-017-4378-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/01/2017] [Indexed: 12/20/2022]
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14
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Seneviratne APB, Turan Z, Hermant A, Lecine P, Smith WO, Borg JP, Jaulin F, Kreitzer G. Modulation of estrogen related receptor alpha activity by the kinesin KIF17. Oncotarget 2017; 8:50359-50375. [PMID: 28881568 PMCID: PMC5584137 DOI: 10.18632/oncotarget.18104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 05/12/2017] [Indexed: 12/26/2022] Open
Abstract
Estrogen-related receptor alpha (ERR1) is an orphan nuclear receptor that can bind transcriptional co-activators constitutively. ERR1 expression correlates with poor patient outcomes in breast cancer, heightening interest in this nuclear receptor as a therapeutic target. Because ERR1 has no known regulatory ligand, a major challenge in targeting its activity is to find cellular or synthetic modulators of its function. We identified an interaction between ERR1 and KIF17, a kinesin-2 family microtubule motor, in a yeast-2-hybrid screen. We confirmed the interaction using in vitro biochemical assays and determined that binding is mediated by the ERR1 ligand-binding/AF2 domain and the KIF17 C-terminal tail. Expression of KIF17 tail domain in either ER-negative or ER-positive breast cancer epithelial cells attenuated nuclear accumulation of newly synthesized ERR1 and inhibited ERR1 transcriptional activity. Conversely, ERR1 transcriptional activity was elevated significantly in KIF17 knock-out cells. Sequence analysis of the KIF17 tail domain revealed it contains a nuclear receptor box with a conserved LXXLL motif found in transcriptional co-activators. Expression of a 12 amino-acid peptide containing this motif was sufficient to inhibit ERR1 transcriptional activity and cell invasion, while deletion of this region from the KIF17 tail resulted in increased ERR1 activity. Together, these data suggest KIF17 modifies ERR1 function by two possible, non-exclusive mechanisms: (i) by regulating nuclear-cytoplasmic distribution or (ii) by competing with transcriptional co-activators for binding to ERR1. Thus targeting the ERR1-KIF17 interaction has potential as a novel strategy for treating breast cancer.
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Affiliation(s)
- Am Pramodh Bandara Seneviratne
- Department of Molecular, Cellular & Biomedical Sciences, The City University of New York School of Medicine, New York, NY, USA.,Department of Cell and Developmental Biology, Weill Medical College, Cornell University, New York, NY, USA.,The City University of New York School of Medicine, New York, NY, USA
| | - Zeynep Turan
- Department of Cell and Developmental Biology, Weill Medical College, Cornell University, New York, NY, USA.,California Institute of Technology, Pasadena, CA, USA
| | - Aurelie Hermant
- Centre de Recherche en Cancérologie de Marseille, Aix Marseille Univ UM105, Institut Paoli-Calmettes, UMR7258 CNRS, U1068 INSERM, Cell Polarity, Cell Signalling and Cancer, Equipe labellisée Ligue Contre le Cancer, Marseille, France
| | - Patrick Lecine
- Centre de Recherche en Cancérologie de Marseille, Aix Marseille Univ UM105, Institut Paoli-Calmettes, UMR7258 CNRS, U1068 INSERM, Cell Polarity, Cell Signalling and Cancer, Equipe labellisée Ligue Contre le Cancer, Marseille, France.,BIOASTER, Tony Garnier, Lyon, France
| | - William O Smith
- Department of Cell and Developmental Biology, Weill Medical College, Cornell University, New York, NY, USA
| | - Jean-Paul Borg
- Centre de Recherche en Cancérologie de Marseille, Aix Marseille Univ UM105, Institut Paoli-Calmettes, UMR7258 CNRS, U1068 INSERM, Cell Polarity, Cell Signalling and Cancer, Equipe labellisée Ligue Contre le Cancer, Marseille, France
| | - Fanny Jaulin
- Department of Cell and Developmental Biology, Weill Medical College, Cornell University, New York, NY, USA.,Gustave Roussy Institute, Villejuif, France
| | - Geri Kreitzer
- Department of Molecular, Cellular & Biomedical Sciences, The City University of New York School of Medicine, New York, NY, USA.,Department of Cell and Developmental Biology, Weill Medical College, Cornell University, New York, NY, USA.,The City University of New York School of Medicine, New York, NY, USA
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15
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Abstract
IQGAP1 is a scaffold protein involved in the assembly of adherens junctions. Our work has recently revealed a novel role for IQGAP1 in the regulation of tight junctions (TJ) through differential recruitment of claudins to the nascent TJ. Here, we discuss the potential mechanisms of this regulation, including IQGAP1 effects on CDC42, and IQGAP1 interactions with sorting/trafficking molecules (e.g. Exo70). Given the many roles of IQGAP1 and the large number of interacting partners, we focus our discussion of these functions in the context of junction formation, trafficking, growth factor signaling and cancer. We also propose a potential role for IQGAP1 in regulating epithelial integrity and compartmentalized signaling in epithelia.
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Affiliation(s)
- Barbara E Tanos
- a Division of Cancer Therapeutics, The Institute of Cancer Research , London , UK
| | - Charles Yeaman
- b Department of Anatomy and Cell Biology , The University of Iowa , Iowa City , IA , USA
| | - Enrique Rodriguez-Boulan
- c Department of Ophthalmology , Margaret Dyson Vision Research Institute, Weill Cornell Medical College , New York , NY , USA.,d Department of Cell and Developmental Biology , Weill Cornell Medical College , New York , NY , USA
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16
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Moldvay J, Fábián K, Jäckel M, Németh Z, Bogos K, Furák J, Tiszlavicz L, Fillinger J, Döme B, Schaff Z. Claudin-1 Protein Expression Is a Good Prognostic Factor in Non-Small Cell Lung Cancer, but only in Squamous Cell Carcinoma Cases. Pathol Oncol Res 2016; 23:151-156. [PMID: 27687058 DOI: 10.1007/s12253-016-0115-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 09/09/2016] [Indexed: 01/15/2023]
Abstract
The aim of the study was to investigate the correlation between claudin (CLDN) protein expression and clinicopathological parameters as well as survival in histological subtypes of non-small cell lung cancer. Archived surgical resection specimens of 137 pathologic stage I primary bronchial cancers including 49 adenocarcinomas of non-lepidic variants (ADC), 46 adenocarcinomas of lepidic variants (L-ADC), and 42 squamous cell carcinomas (SCC) were examined. Immunohistochemistry (IHC) using antibodies against CLDN1,-2,-3,-4,-7 proteins as well as semiquantitative estimation (IHC scores 0-5) were performed. Claudin IHC scores of L-ADC differed significantly from ADC (CLDN1: p = 0.009, CLDN2: p = 0.005, CLDN3: p = 0.004, CLDN4: p = 0.001, CLDN7: p < 0.001, respectively) and SCC (CLDN1: p < 0.001, CLDN3: p < 0.001, CLDN7: p < 0.001, respectively). Highly significant CLDN3-CLDN4 parallel expression could be demonstrated in ADC and L-ADC (p < 0.001 in both), which was not observed in SCC (p = 0.131). ADC and SCC showed no correlation with smoking, whereas in case of L-ADC heavier smoking correlated with higher CLDN3 expression (p = 0.020). Regarding claudin expression and survival, in SCC significant correlation could be demonstrated between CLDN1 IHC positivity and better survival (p = 0.038). In NSCLC as a whole, high CLDN2 expression proved to be a better prognostic factor when compared with cases where CLDN2 IHC score was 0-1 vs. 2-5 (p = 0.009), however, when analyzed separately, none of the histological subgroups showed correlation between CLDN2 expression and overall survival. The claudin expression pattern was significantly different not only between the SCC-ADC and SCC-L-ADC but also between the L-ADC and ADC histological subgroups, which strongly underlines that L-ADC represents a distinct entity within the ADC group. CLDN1 overexpression is a good prognostic factor in NSCLC, but only in the SCC subgroup.
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Affiliation(s)
- Judit Moldvay
- National Korányi Institute of Pulmonology, Pihenő u. 1, Budapest, H-1122, Hungary. .,Department of Thoracic Surgery, National Institute of Oncology-Semmelweis University, Ráth György u. 7-9, Budapest, H-1122, Hungary.
| | - Katalin Fábián
- Department of Pulmonology, Semmelweis University, Diósárok u. 1/c, Budapest, H-1125, Hungary
| | - Márta Jäckel
- Department of Pathology, Military Hospital, Róbert Károly krt. 44, Budapest, H-1134, Hungary
| | - Zsuzsanna Németh
- Centre for Cancer Research and Cell Biology, Queen's University, 97 Lisburn Road, Belfast, BT9 7AE, Ireland
| | - Krisztina Bogos
- National Korányi Institute of Pulmonology, Pihenő u. 1, Budapest, H-1122, Hungary
| | - József Furák
- Department of Surgery, University of Szeged, Szőkefalvi-Nagy u. 6, Szeged, H-6720, Hungary
| | - László Tiszlavicz
- Department of Pathology, University of Szeged, Állomás u. 2, Szeged, 6720, Hungary
| | - János Fillinger
- Department of Pathology, National Institute of Oncology, Ráth György u. 7-9, Budapest, H-1122, Hungary
| | - Balázs Döme
- National Korányi Institute of Pulmonology, Pihenő u. 1, Budapest, H-1122, Hungary.,Department of Thoracic Surgery, National Institute of Oncology-Semmelweis University, Ráth György u. 7-9, Budapest, H-1122, Hungary.,Division of Thoracic Surgery, Comprehensive Cancer Center, Medical University of Vienna, Spitalgasse 23,, 1090, Vienna, Austria
| | - Zsuzsa Schaff
- 2nd Department of Pathology, Semmelweis University, Üllői út 93, Budapest, H-1091, Hungary
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17
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The role of claudins in cancer metastasis. Oncogene 2016; 36:1176-1190. [PMID: 27524421 DOI: 10.1038/onc.2016.289] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 07/11/2016] [Accepted: 07/11/2016] [Indexed: 01/24/2023]
Abstract
TJs are large intercellular adhesion complexes that maintain cell polarity in normal epithelia and endothelia. During the metastatic process, TJs must be 'loosened' or dismantled in cancer cells to enable migration and dissemination. Diminished TJ integrity must also occur within endothelial cells to allow intravasation and extravasation of cancer cells across endothelial barriers. Claudins are critical components of TJs, forming homo- and heteromeric interactions between the adjacent cells, which have been implicated as key modulators of carcinogenesis and metastasis. Numerous epithelial-derived cancers display altered claudin expression patterns and certain claudins can now be used as biomarkers to predict patient prognosis. Moreover, claudins have been functionally implicated in numerous steps of the metastatic cascade. The distinct roles played by claudins during the cancer progression to metastatic disease are just starting to be elucidated. A more complete understanding of the mechanisms through which claudins augment cancer metastasis is required to develop new therapeutic agents against this family of proteins. In this review, we will summarize the relationship between the claudin expression and clinical outcomes in diverse cancers, discuss tumor intrinisic roles through which claudins regulate metastasis and explore claudin-mediated functions within stromal cells that influence the metastatic process. Finally, we will consider possible strategies for targeting claudins that have the potential to improve the management of metastatic cancer.
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18
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Iravani O, Yip GWC, Thike AA, Chua PJ, Jane Scully O, Tan PH, Bay BH. Prognostic significance of Claudin 12 in estrogen receptor-negative breast cancer. J Clin Pathol 2016; 69:878-83. [PMID: 26926102 DOI: 10.1136/jclinpath-2015-203265] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 02/03/2016] [Indexed: 12/21/2022]
Abstract
AIMS Altered expression of the Claudin (CLDN) superfamily of tight junction proteins has been reported in breast cancer. The aim of this study was to examine the immunohistochemical expression of CLDN 12 and its prognostic significance in breast cancer tissues. METHODS Immunohistochemical expression of CLDN 12 was performed on tissue microarrays consisting of 232 cases of breast carcinoma and correlated with clinicopathological features as well as survival of the patients with breast cancer. RESULTS For the estrogen receptor (ER)-negative subgroup of patients with breast cancer, CLDN 12 expression was shown to be an independent predictor of poor overall survival (HR=2.345; p=0.020) and disease-free survival (HR=2.177; p=0.026) but not for the ER-positive tumours. CONCLUSIONS The findings suggest that CLDN 12 expression could be clinically useful for predicting the survival of the ER-negative subgroup of patients with breast cancer.
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Affiliation(s)
- Omid Iravani
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - George Wai-Cheong Yip
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Aye Aye Thike
- Department of Pathology, Singapore General Hospital, Singapore, Singapore
| | - Pei Jou Chua
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Olivia Jane Scully
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Puay-Hoon Tan
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore Department of Pathology, Singapore General Hospital, Singapore, Singapore
| | - Boon-Huat Bay
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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19
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Martínez-Revollar G, Garay E, Martin-Tapia D, Nava P, Huerta M, Lopez-Bayghen E, Meraz-Cruz N, Segovia J, González-Mariscal L. Heterogeneity between triple negative breast cancer cells due to differential activation of Wnt and PI3K/AKT pathways. Exp Cell Res 2015; 339:67-80. [DOI: 10.1016/j.yexcr.2015.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/02/2015] [Accepted: 10/06/2015] [Indexed: 12/14/2022]
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20
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Tabariès S, Annis MG, Hsu BE, Tam CE, Savage P, Park M, Siegel PM. Lyn modulates Claudin-2 expression and is a therapeutic target for breast cancer liver metastasis. Oncotarget 2015; 6:9476-87. [PMID: 25823815 PMCID: PMC4496232 DOI: 10.18632/oncotarget.3269] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 01/31/2015] [Indexed: 12/30/2022] Open
Abstract
Claudin-2 enhances breast cancer liver metastasis and promotes the development of colorectal cancers. The objective of our current study is to define the regulatory mechanisms controlling Claudin-2 expression in breast cancer cells. We evaluated the effect of several Src Family Kinase (SFK) inhibitors or knockdown of individual SFK members on Claudin-2 expression in breast cancer cells. We also assessed the potential effects of pan-SFK and SFK-selective inhibitors on the formation of breast cancer liver metastases. This study reveals that pan inhibition of SFK signaling pathways significantly elevated Claudin-2 expression levels in breast cancer cells. In addition, our data demonstrate that pan-SFK inhibitors can enhance breast cancer metastasis to the liver. Knockdown of individual SFK members reveals that loss of Yes or Fyn induces Claudin-2 expression; whereas, diminished Lyn levels impairs Claudin-2 expression in breast cancer cells. The Lyn-selective kinase inhibitor, Bafetinib (INNO-406), acts to reduce Claudin-2 expression and suppress breast cancer liver metastasis. Our findings may have major clinical implications and advise against the treatment of breast cancer patients with broad-acting SFK inhibitors and support the use of Lyn-specific inhibitors.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Carcinoma/genetics
- Carcinoma/prevention & control
- Carcinoma/secondary
- Cell Line, Tumor
- Claudins/biosynthesis
- Claudins/genetics
- Dasatinib/pharmacology
- Dasatinib/therapeutic use
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Liver Neoplasms/prevention & control
- Liver Neoplasms/secondary
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred NOD
- Mice, SCID
- Molecular Targeted Therapy
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Neoplasm Proteins/physiology
- Promoter Regions, Genetic
- Protein Kinase Inhibitors/pharmacology
- Protein Kinase Inhibitors/therapeutic use
- Proto-Oncogene Proteins c-fos/physiology
- Pyrimidines/pharmacology
- Pyrimidines/therapeutic use
- RNA Interference
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- RNA, Neoplasm/biosynthesis
- RNA, Neoplasm/genetics
- Signal Transduction
- Transcription Factor AP-1/physiology
- Transcription, Genetic
- Triple Negative Breast Neoplasms/genetics
- Triple Negative Breast Neoplasms/pathology
- src-Family Kinases/antagonists & inhibitors
- src-Family Kinases/physiology
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Affiliation(s)
- Sébastien Tabariès
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Medicine, McGill University, Montréal, Québec, Canada, H3A 1A3
| | - Matthew G. Annis
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Medicine, McGill University, Montréal, Québec, Canada, H3A 1A3
| | - Brian E. Hsu
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Medicine, McGill University, Montréal, Québec, Canada, H3A 1A3
| | - Christine E. Tam
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Medicine, McGill University, Montréal, Québec, Canada, H3A 1A3
| | - Paul Savage
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Medicine, McGill University, Montréal, Québec, Canada, H3A 1A3
| | - Morag Park
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Medicine, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Biochemistry, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Oncology, McGill University, Montréal, Québec, Canada, H3A 1A3
| | - Peter M. Siegel
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Medicine, McGill University, Montréal, Québec, Canada, H3A 1A3
- Department of Biochemistry, McGill University, Montréal, Québec, Canada, H3A 1A3
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21
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Sugimoto H, Nagahara M, Bae Y, Nakagawa T, Ishikawa T, Sato T, Uetake H, Eishi Y, Sugihara K. Clinicopathologic relevance of claudin 5 expression in breast cancer. Am J Clin Pathol 2015; 143:540-6. [PMID: 25780006 DOI: 10.1309/ajcpwgbz6d0oaivj] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES Claudins are major adhesion molecules in tight junctions and are strongly expressed in various cancers. We thus investigated the expression of claudin 5, a member of the claudin family, in breast cancer. METHODS A total of 193 patients with breast cancer were identified based on their pathologic diagnosis. The expression of each claudin 5 was analyzed in the tumor by immunohistochemical staining. Parametric correlations were done between claudin 5 expression and the clinicopathologic findings. RESULTS Claudin 5 expression in patients with recurrent breast cancer was statistically significantly higher (P = .004). In addition, analysis of the correlation with other clinicopathologic factors showed statistically significant differences with respect to lymphatic invasion (P = .014), venous invasion (P = .048), estrogen receptor status (P = .002), and human epidermal growth factor 2 status (P = .007). Multivariate analysis revealed that claudin 5 expression was an independent predictive factor in the recurrence for relapse-free survival (RFS) (P = .020). Kaplan-Meier analysis showed that the RFS rate was significantly lower in the high claudin 5 expression group (P = .001). CONCLUSIONS Patients with breast cancer with high claudin 5 expression had a significantly lower RFS rate. Our findings suggest that claudin 5 may be useful as a new biomarker of a risk factor.
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Affiliation(s)
- Hitoshi Sugimoto
- Department of Surgical Oncology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Makoto Nagahara
- Department of Surgical Oncology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuan Bae
- Department of Human Pathology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tsuyoshi Nakagawa
- Department of Surgical Oncology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toshiaki Ishikawa
- Department of Translational Oncology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takanobu Sato
- Department of Surgical Oncology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroyuki Uetake
- Department of Translational Oncology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshinobu Eishi
- Department of Human Pathology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kenichi Sugihara
- Department of Surgical Oncology, Graduate School of Medical & Dental Science, Tokyo Medical and Dental University, Tokyo, Japan
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22
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Tanos BE, Perez Bay AE, Salvarezza S, Vivanco I, Mellinghoff I, Osman M, Sacks DB, Rodriguez-Boulan E. IQGAP1 controls tight junction formation through differential regulation of claudin recruitment. J Cell Sci 2015; 128:853-62. [PMID: 25588839 DOI: 10.1242/jcs.118703] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
IQGAP1 is a scaffolding protein previously implicated in adherens junction formation. However, its role in the establishment or maintenance of tight junctions (TJs) has not been explored. We hypothesized that IQGAP1 could regulate TJ formation by modulating the expression and/or localization of junctional proteins, and we systematically tested this hypothesis in the model Madin-Darby canine kidney (MDCK) cell line. We find that IQGAP1 silencing enhances a transient increase in transepithelial electrical resistance (TER) observed during the early stages of TJ formation (Cereijido et al., 1978). Quantitative microscopy and biochemical experiments suggest that this effect of IQGAP1 on TJ assembly is accounted for by reduced expression and TJ recruitment of claudin 2, and increased TJ recruitment of claudin 4. Furthermore, we show that IQGAP1 also regulates TJ formation through its interactor CDC42, because IQGAP1 knockdown increases the activity of the CDC42 effector JNK and dominant-negative CDC42 prevents the increase in TER caused by IQGAP1 silencing. Hence, we provide evidence that IQGAP1 modulates TJ formation by a twofold mechanism: (1) controlling the expression and recruitment of claudin 2 and recruitment of claudin 4 to the TJ, and (2) transient inhibition of the CDC42-JNK pathway.
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Affiliation(s)
- Barbara E Tanos
- Department of Ophthalmology, Margaret Dyson Vision Research Institute, Weill Cornell Medical College, New York, NY 10065, USA
| | - Andres E Perez Bay
- Department of Ophthalmology, Margaret Dyson Vision Research Institute, Weill Cornell Medical College, New York, NY 10065, USA
| | - Susana Salvarezza
- Department of Ophthalmology, Margaret Dyson Vision Research Institute, Weill Cornell Medical College, New York, NY 10065, USA
| | - Igor Vivanco
- Human Oncology & Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
| | - Ingo Mellinghoff
- Human Oncology & Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA Department of Pharmacology, Weill Cornell Medical College, New York, NY 10065, USA Department of Neurology, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Mahasin Osman
- Department of Molecular Pharmacology, Physiology and Biotechnology, Division of Biology and Medicine, Alpert School of Medicine, Brown University, Providence, RI 02912, USA
| | - David B Sacks
- Department of Laboratory Medicine, National Institutes of Health, Bethesda, MD 20892, USA
| | - Enrique Rodriguez-Boulan
- Department of Ophthalmology, Margaret Dyson Vision Research Institute, Weill Cornell Medical College, New York, NY 10065, USA Department of Cell and Developmental Biology, Weill Cornell Medical College, New York, NY 10065, USA
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23
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Jiwa LS, van Diest PJ, Hoefnagel LD, Wesseling J, Wesseling P, Moelans CB. Upregulation of Claudin-4, CAIX and GLUT-1 in distant breast cancer metastases. BMC Cancer 2014; 14:864. [PMID: 25417118 PMCID: PMC4247109 DOI: 10.1186/1471-2407-14-864] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 11/11/2014] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Several studies have shown that the immunophenotype of distant breast cancer metastases may differ significantly from that of the primary tumor, especially with regard to differences in the level of hormone receptor protein expression, a process known as receptor conversion. This study aimed to compare expression levels of several membrane proteins between primary breast tumors and their corresponding distant metastases in view of their potential applicability for molecular imaging and drug targeting. METHODS Expression of Claudin-4, EGFR, CAIX, GLUT-1 and IGF1R was assessed by immunohistochemistry on tissue microarrays composed of 97 paired primary breast tumors and their distant (non-bone) metastases. RESULTS In both the primary cancers and the metastases, Claudin-4 was most frequently expressed, followed by GLUT-1, CAIX and EGFR.From primary breast cancers to their distant metastases there was positive to negative conversion, e.g. protein expression in the primary tumor with no expression in its paired metastasis, in 6%, 19%, 12%, 38%, and 0% for Claudin-4 (n.s), GLUT-1 (n.s), CAIX (n.s), EGFR (n.s) and IGF1R (n.s) respectively. Negative to positive conversion was seen in 65%, 47%, 43%, 9% and 0% of cases for Claudin-4 (p = 0.049), GLUT-1 (p = 0.024), CAIX (p = 0.002), EGFR (n.s.) and IGF1R (n.s.) respectively. Negative to positive conversion of Claudin-4 in the metastasis was significantly associated with tumor size (p = 0.015), negative to positive conversion of EGFR with negative PR status (p = 0.046) and high MAI (p = 0.047) and GLUT-1 negative to positive conversion with (neo)adjuvant chemotherapy (p = 0.039) and time to metastasis formation (p = 0.034). CAIX and GLUT-1 expression in the primary tumor were significantly associated with high MAI (p = 0.008 and p = 0.038 respectively). CONCLUSION Claudin-4 is frequently expressed in primary breast cancers but especially in their metastases and is thereby an attractive membrane bound molecular imaging and drug target. Conversion in expression of the studied proteins from the primary tumor to metastases was fairly frequent, except for IGF1R, implying that the expression status of metastases cannot always be reliably predicted from the primary tumor, thereby necessitating biopsy for reliable assessment.
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Affiliation(s)
| | | | | | | | | | | | - Cathy B Moelans
- Department of Pathology, University Medical Center Utrecht, Heidelberglaan 100, PO Box 85500, Utrecht 3508GA, The Netherlands.
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24
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Ma F, Ding X, Fan Y, Ying J, Zheng S, Lu N, Xu B. A CLDN1-negative phenotype predicts poor prognosis in triple-negative breast cancer. PLoS One 2014; 9:e112765. [PMID: 25393310 PMCID: PMC4231092 DOI: 10.1371/journal.pone.0112765] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Accepted: 10/18/2014] [Indexed: 12/31/2022] Open
Abstract
Introduction Triple-negative breast cancer (TNBC) is a heterogeneous disease with no definitive prognostic markers. As a major component of tight junctions, claudins (CLDNs) presumably play an important role in carcinogenesis and progression of breast cancer. This study was aimed at determining the relationship between the expression of CLDNs and the clinical outcomes of TNBCs. Materials and Methods The surgical specimens of primary breast tumors from a consecutive cohort of 173 TNBC patients were retrospectively collected. The membranous expression of CLDN1, CLDN2, CLDN4, and CLDN7 was measured by immunohistochemistry. Then, the associations between CLDN expression, clinicopathological features, and clinical outcomes were assessed. Results Positive CLDN1, CLDN2, CLDN4, and CLDN7 membrane expression was detected in 44.5%, 54.9%, 76.9%, and 73.4% of the cohort specimens, respectively. A lack of CLDN1 expression was related to only lymph node metastasis (P = 0.014). The rate of CLDN4-positive tumors was significantly increased in tumors of a higher grade (P = 0.003). Importantly, negative CLDN1 expression was associated with worse relapse-free survival (RFS) in both lymph node positive (LN+) and negative (LN−) cases (both P<0.001). Similarly it was also associated with shorter overall survival (OS)(P = 0.003 in LN+ cases; P = 0.018 in LN− cases). In the LN+ subgroup, CLDN2-negative cases had a significantly higher risk of recurrence (P = 0.008). Multivariate analysis revealed that negative CLDN1 expression was an independent prognostic factor for high risk of both recurrence and death (HR 5.529, 95% CI 2.664–11.475, P<0.001; HR 3.459, 95% CI 1.555–7.696, P = 0.002). However, neither CLDN4 nor CLDN7 expression was associated with survival. Conclusion In TNBC, the CLDN1-negative phenotype predicts a high risk of recurrence and death. The absence of CLDN1 expression is strongly suggested to be an independent adverse prognostic factor in this heterogeneous subtype of breast cancer.
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MESH Headings
- Adult
- Carcinoma, Ductal/diagnosis
- Carcinoma, Ductal/genetics
- Carcinoma, Ductal/metabolism
- Carcinoma, Ductal/mortality
- Carcinoma, Ductal/pathology
- Carcinoma, Lobular/diagnosis
- Carcinoma, Lobular/genetics
- Carcinoma, Lobular/metabolism
- Carcinoma, Lobular/mortality
- Carcinoma, Lobular/pathology
- Claudin-1/genetics
- Claudin-1/metabolism
- Claudin-4/genetics
- Claudin-4/metabolism
- Claudins/genetics
- Claudins/metabolism
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Lymph Nodes/metabolism
- Lymph Nodes/pathology
- Lymphatic Metastasis
- Middle Aged
- Neoplasm Grading
- Phenotype
- Prognosis
- Recurrence
- Retrospective Studies
- Risk Factors
- Survival Analysis
- Triple Negative Breast Neoplasms/diagnosis
- Triple Negative Breast Neoplasms/genetics
- Triple Negative Breast Neoplasms/metabolism
- Triple Negative Breast Neoplasms/mortality
- Triple Negative Breast Neoplasms/pathology
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Affiliation(s)
- Fei Ma
- Department of Medical Oncology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoyan Ding
- Department of Medical Oncology, Beijing DiTan Hospital, Capital Medical University, Beijing, China
| | - Ying Fan
- Department of Medical Oncology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianming Ying
- Department of Pathology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shan Zheng
- Department of Pathology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ning Lu
- Department of Pathology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Binghe Xu
- Department of Medical Oncology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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25
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Flores AR, Rêma A, Carvalho F, Lopes G, Faustino A, Dias Pereira P. Clinicopathological significance of immunoexpression of claudin-1 and claudin-7 in feline mammary carcinomas. J Comp Pathol 2014; 151:339-46. [PMID: 25246182 DOI: 10.1016/j.jcpa.2014.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/21/2014] [Accepted: 07/28/2014] [Indexed: 01/16/2023]
Abstract
Claudins (CLDNs) are tight junction proteins that have a role in regulating cell adhesion and polarity, paracellular permeability, proliferation and differentiation. Several immunohistochemical studies have shown reduced expression of CLDN-1 and CLDN-7 in human and canine mammary carcinomas, suggesting that these proteins may participate in mammary carcinogenesis, invasion and metastasis. The present study characterizes expression of CLDN-1 and CLDN-7 in feline mammary carcinomas (n = 52) and their metastases (n = 29). There was an inverse association between CLDN-7 expression and histological grade of tumour. Reduced expression of CLDN-7 was significantly associated with decreased tubule formation, high proliferative activity and metastasis. No significant associations were found between CLDN-1 expression and any of these features. Evaluation of expression of CLDN-7, but not CLDN-1, may therefore provide prognostic information, assisting in the diagnosis of a subgroup of aggressive feline mammary carcinomas that share some features with the recently described 'claudin-low' subgroup of human breast cancer.
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Affiliation(s)
- A Rute Flores
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira N°228, 4050-313 Porto, Portugal
| | - A Rêma
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira N°228, 4050-313 Porto, Portugal
| | - F Carvalho
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira N°228, 4050-313 Porto, Portugal
| | - G Lopes
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira N°228, 4050-313 Porto, Portugal
| | - A Faustino
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira N°228, 4050-313 Porto, Portugal
| | - P Dias Pereira
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira N°228, 4050-313 Porto, Portugal.
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26
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Heerma van Voss MR, van Diest PJ, Smolders YHCM, Bart J, van der Wall E, van der Groep P. Distinct claudin expression characterizes BRCA1-related breast cancer. Histopathology 2014; 65:814-27. [PMID: 25041042 DOI: 10.1111/his.12490] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Accepted: 07/01/2014] [Indexed: 01/05/2023]
Abstract
AIMS Members of the claudin family are involved in cancer progression and are differentially expressed in subtypes of breast cancer. Breast cancers in BRCA1 germ line mutation carriers have distinct clinicopathological characteristics. Biomarkers that discriminate between BRCA1-related and sporadic breast cancer cases are needed to improve early identification of mutation carriers. In this study we evaluated protein expression of five major claudins in BRCA1-related breast cancers in comparison with sporadic controls. METHODS AND RESULTS Forty breast cancers in BRCA1 mutation carriers and 40 age-matched sporadic breast cancers were immunohistochemically stained for claudins 1, 3, 4, 6 and 7. Total intratumoural expression levels were compared to those in the surrounding normal tissue. In addition, subcellular claudin expression was scored. Higher overexpression rates were observed for all five claudins in BRCA1-related breast cancers when compared to sporadic controls. In multivariate analysis, overexpression of claudin 3, 4, and 7 was mainly dependent on ER-status, whereas overexpression of claudin 6 and high membranous expression of claudin 1 were independent of other characteristics. CONCLUSIONS BRCA1-related breast cancers are characterized by frequent overexpression of claudins. Especially claudin 1 and 6 expression may help to discriminate mutation carriers from sporadic breast cancer cases.
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27
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Sappayatosok K, Phattarataratip E. Overexpression of Claudin-1 is Associated with Advanced Clinical Stage and Invasive Pathologic Characteristics of Oral Squamous Cell Carcinoma. Head Neck Pathol 2014; 9:173-80. [PMID: 25078758 PMCID: PMC4424206 DOI: 10.1007/s12105-014-0559-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 07/24/2014] [Indexed: 12/25/2022]
Abstract
Claudins constitute a group of principal proteins forming the tight junctional complex. The altered expression of selected claudins has been reported in several human cancers. The purpose of this study was to investigate the expression of claudin-1 and claudin-4 in oral squamous cell carcinoma (OSCC) and examine its relationship with patient clinical-pathologic features. Forty-five OSCC cases were enrolled. Patient clinical, pathologic and follow-up data were reviewed and the claudin-1 and claudin-4 expression was analyzed immunohistochemically. Positive claudin-1 and claudin-4 immunoreactivities were noted in 86.7 and 80 % of cases, respectively. The majority of cases showed the staining in less than 25 % of cancer cells. The increased claudin-1 expression was significantly associated with the high pathologic grade, the presence of microscopic perineural invasion, vascular invasion, nodal metastasis, and advanced clinical stage. No relationship between various clinico-pathologic parameters and differential claudin-4 expression was observed. Claudin-1 may play a role in OSCC progression and could serve as a prognostic marker of advanced disease.
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Affiliation(s)
- Kraisorn Sappayatosok
- />Faculty of Dental Medicine, Rangsit University, 52/347 Muang-Ake, Phaholyothin Road, Lak-Hok, Muang, Pathumthani 12000 Thailand
| | - Ekarat Phattarataratip
- />Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University, Henri-Dunant Road, Pathumwan, Bangkok 10330 Thailand
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28
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Soini Y, Eskelinen M, Juvonen P, Kärjä V, Haapasaari KM, Saarela A, Karihtala P. Strong claudin 5 expression is a poor prognostic sign in pancreatic adenocarcinoma. Tumour Biol 2014; 35:3803-8. [PMID: 24519061 DOI: 10.1007/s13277-013-1503-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 11/29/2013] [Indexed: 01/28/2023] Open
Abstract
We investigated the expression of claudin 5 in 88 ductal adenocarcinomas of the pancreas. The results were correlated with patient prognosis, with claudin 5 expression in blood vessels, with the expression level of bcl2 and bax and with apoptosis. Claudin 5 expression was detected in 24 (38%) cases. It was not associated with tumour size or spread, but strong claudin 5 expression correlated with a worse survival (p = 0.005). Claudin 5 also associated with a higher extent of apoptosis and greater expression of bax protein. In the tumour vasculature, some vessels displayed a loss of claudin 5 expression. The presence of this loss was associated with tumour grade and the presence of nodal metastases (p = 0.02, p = 0.022, respectively). These results indicate that claudin 5 is upregulated in a proportion of pancreatic ductal adenocarcinomas. The association of strong claudin 5 expression with a worse survival is in line with some earlier reports indicating that this protein is involved with increased locomotion and more aggressive spread of carcinomas. The association of claudin 5 with apoptosis and bax might be due to stronger cellular kinetics found in such tumours. The loss of claudin 5 expression in the tumour vasculature points to a leaky vessel type; this might also ease the access of tumours to vessels and be reflected in its association with the presence of nodal metastases.
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Affiliation(s)
- Ylermi Soini
- Department of Pathology and Forensic Medicine, Institute of Clinical Medicine, Pathology and Forensic Medicine, School of Medicine, University of Eastern Finland, Cancer Center of Eastern Finland, Kuopio, Finland,
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29
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Chaudhry P, Fabi F, Singh M, Parent S, Leblanc V, Asselin E. Prostate apoptosis response-4 mediates TGF-β-induced epithelial-to-mesenchymal transition. Cell Death Dis 2014; 5:e1044. [PMID: 24503536 PMCID: PMC3944278 DOI: 10.1038/cddis.2014.7] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/11/2013] [Accepted: 01/02/2014] [Indexed: 12/03/2022]
Abstract
A growing body of evidence supports that the epithelial-to-mesenchymal transition (EMT), which occurs during cancer development and progression, has a crucial role in metastasis by enhancing the motility of tumor cells. Transforming growth factor-β (TGF-β) is known to induce EMT in a number of cancer cell types; however, the mechanism underlying this transition process is not fully understood. In this study we have demonstrated that TGF-β upregulates the expression of tumor suppressor protein Par-4 (prostate apoptosis response-4) concomitant with the induction of EMT. Mechanistic investigations revealed that exogenous treatment with each TGF-β isoform upregulates Par-4 mRNA and protein levels in parallel levels of phosphorylated Smad2 and IκB-α increase. Disruption of TGF-β signaling by using ALK5 inhibitor, neutralizing TGF-β antibody or phosphoinositide 3-kinase inhibitor reduces endogenous Par-4 levels, suggesting that both Smad and NF-κB pathways are involved in TGF-β-mediated Par-4 upregulation. NF-κB-binding sites in Par-4 promoter have previously been reported; however, using chromatin immunoprecipitation assay we showed that Par-4 promoter region also contains Smad4-binding site. Furthermore, TGF-β promotes nuclear localization of Par-4. Prolonged TGF-β3 treatment disrupts epithelial cell morphology, promotes cell motility and induces upregulation of Snail, vimentin, zinc-finger E-box binding homeobox 1 and N-Cadherin and downregulation of Claudin-1 and E-Cadherin. Forced expression of Par-4, results in the upregulation of vimentin and Snail expression together with increase in cell migration. In contrast, small interfering RNA-mediated silencing of Par-4 expression results in decrease of vimentin and Snail expression and prevents TGF-β-induced EMT. We have also uncovered a role of X-linked inhibitor of apoptosis protein in the regulation of endogenous Par-4 levels through inhibition of caspase-mediated cleavage. In conclusion, our findings suggest that Par-4 is a novel and essential downstream target of TGF-β signaling and acts as an important factor during TGF-β-induced EMT.
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Affiliation(s)
- P Chaudhry
- Department of Medical Biology, Research group in Molecular Oncology and Endocrinology, Université du Québec à Trois-Rivières, Trois-Rivières, Québec, Canada
| | - F Fabi
- Department of Medical Biology, Research group in Molecular Oncology and Endocrinology, Université du Québec à Trois-Rivières, Trois-Rivières, Québec, Canada
| | - M Singh
- Department of Medical Biology, Research group in Molecular Oncology and Endocrinology, Université du Québec à Trois-Rivières, Trois-Rivières, Québec, Canada
| | - S Parent
- Department of Medical Biology, Research group in Molecular Oncology and Endocrinology, Université du Québec à Trois-Rivières, Trois-Rivières, Québec, Canada
| | - V Leblanc
- Department of Medical Biology, Research group in Molecular Oncology and Endocrinology, Université du Québec à Trois-Rivières, Trois-Rivières, Québec, Canada
| | - E Asselin
- Department of Medical Biology, Research group in Molecular Oncology and Endocrinology, Université du Québec à Trois-Rivières, Trois-Rivières, Québec, Canada
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30
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Flores AR, Rêma A, Carvalho F, Faustino A, Dias Pereira P. Reduced expression of claudin-2 is associated with high histological grade and metastasis of feline mammary carcinomas. J Comp Pathol 2013; 150:169-74. [PMID: 24220012 DOI: 10.1016/j.jcpa.2013.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 07/09/2013] [Accepted: 09/09/2013] [Indexed: 10/26/2022]
Abstract
Claudins (CLDNs) are a family of tight junction (TJ) proteins that play an important role in maintaining cell polarity, in controlling paracellular ion flux and in regulating cell proliferation and differentiation. There is a growing body of evidence that associates changes in CLDN expression with the development of human breast cancer. In the present study CLDN-2 expression was examined immunohistochemically in samples of normal feline mammary tissue (n = 5) and mammary carcinomas (n = 52), including metastatic lesions (n = 29). Seventy-seven percent of carcinomas showed reduced CLDN-2 expression compared with that observed in normal mammary gland. Reduced expression of CLDN-2 was significantly associated with a high histological grade of carcinoma (P = 0.011), with 88.6% of grade II/III carcinomas showing decreased expression. Furthermore, CLDN-2 down-regulation was significantly associated with metastatic disease (P = 0.0027), with 93.1% of cases with signs of metastasis showing decreased expression of this protein. CLDN-2 may constitute a molecular marker for identification of a subgroup of feline mammary carcinomas characterized by high histological grade and the development of metastasis.
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Affiliation(s)
- A R Flores
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - A Rêma
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - F Carvalho
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - A Faustino
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - P Dias Pereira
- Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.
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Kimbung S, Kovács A, Bendahl PO, Malmström P, Fernö M, Hatschek T, Hedenfalk I. Claudin-2 is an independent negative prognostic factor in breast cancer and specifically predicts early liver recurrences. Mol Oncol 2013; 8:119-28. [PMID: 24287398 DOI: 10.1016/j.molonc.2013.10.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 09/30/2013] [Accepted: 10/02/2013] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Predicting any future metastatic site of early-stage breast cancer is important as it significantly influences the prognosis of advanced disease. This study aimed at investigating the potential of claudin-2, over-expressed in breast cancer liver metastases, as a biomarker for predicting liver metastatic propensity in primary breast cancer. METHODS Claudin-2 expression was analyzed in two independent cohorts. Cohort 1 included 304 women with metastatic breast cancer diagnosed between 2002 and 2007, while cohort 2 included 237 premenopausal women with early-stage node-negative breast cancer diagnosed between 1991 and 1994. Global transcriptional profiling of fine-needle aspirates from metastases was performed, followed by immunohistochemical analyses in archival primary tumor tissue. Associations between claudin-2 expression and relapse site were assessed by univariable and multivariable Cox regression models including conventional prognostic factors. Two-sided statistical tests were used. RESULTS CLDN2 was significantly up-regulated (P < 0.001) in liver metastases compared to other metastatic sites. Claudin-2 protein was more frequently expressed in primary tumors from patients who subsequently developed liver metastases (P = 0.02) and high expression was associated with a shorter metastasis-free interval (cohort 1, HR = 1.4, 95% CI = 1.0-1.9; cohort 2, HR = 2.2, 95% CI = 1.3-3.5). Specifically, a significantly shorter interval between primary tumor diagnosis and liver-specific recurrence was observed among patients with high levels of claudin-2 expression in the primary tumor (cohort 1, HR = 2.3, 95% CI = 1.3-3.9). CONCLUSION These results suggest a novel role for claudin-2 as a prognostic biomarker with the ability to predict not only the likelihood of a breast cancer recurrence, but more interestingly, the liver metastatic potential of the primary tumor.
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Affiliation(s)
- Siker Kimbung
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University, Sweden; CREATE Health Strategic Center for Translational Cancer Research, Lund University, Lund, Sweden
| | - Anikó Kovács
- Department of Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Pär-Ola Bendahl
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University, Sweden
| | - Per Malmström
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University, Sweden; Skåne Department of Oncology, Skåne University Hospital, Lund, Sweden
| | - Mårten Fernö
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University, Sweden
| | - Thomas Hatschek
- Department of Oncology and Pathology, Karolinska Institutet and Karolinska University Hospital, Sweden
| | - Ingrid Hedenfalk
- Division of Oncology, Department of Clinical Sciences, Lund, Lund University, Sweden; CREATE Health Strategic Center for Translational Cancer Research, Lund University, Lund, Sweden.
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Di Cello F, Cope L, Li H, Jeschke J, Wang W, Baylin SB, Zahnow CA. Methylation of the claudin 1 promoter is associated with loss of expression in estrogen receptor positive breast cancer. PLoS One 2013; 8:e68630. [PMID: 23844228 PMCID: PMC3701071 DOI: 10.1371/journal.pone.0068630] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 05/31/2013] [Indexed: 12/31/2022] Open
Abstract
Downregulation of the tight junction protein claudin 1 is a frequent event in breast cancer and is associated with recurrence, metastasis, and reduced survival, suggesting a tumor suppressor role for this protein. Tumor suppressor genes are often epigenetically silenced in cancer. Downregulation of claudin 1 via DNA promoter methylation may thus be an important determinant in breast cancer development and progression. To investigate if silencing of claudin 1 has an epigenetic etiology in breast cancer we compared gene expression and methylation data from 217 breast cancer samples and 40 matched normal samples available through the Cancer Genome Atlas (TCGA). Moreover, we analyzed claudin 1 expression and methylation in 26 breast cancer cell lines. We found that methylation of the claudin 1 promoter CpG island is relatively frequent in estrogen receptor positive (ER+) breast cancer and is associated with low claudin 1 expression. In contrast, the claudin 1 promoter was not methylated in most of the ER-breast cancers samples and some of these tumors overexpress claudin 1. In addition, we observed that the demethylating agents, azacitidine and decitabine can upregulate claudin 1 expression in breast cancer cell lines that have a methylated claudin 1 promoter. Taken together, our results indicate that DNA promoter methylation is causally associated with downregulation of claudin 1 in a subgroup of breast cancer that includes mostly ER+ tumors, and suggest that epigenetic therapy to restore claudin 1 expression might represent a viable therapeutic strategy in this subtype of breast cancer.
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Affiliation(s)
- Francescopaolo Di Cello
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
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Claudins play a role in normal and tumor cell motility. BMC Cell Biol 2013; 14:19. [PMID: 23521713 PMCID: PMC3614481 DOI: 10.1186/1471-2121-14-19] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 03/15/2013] [Indexed: 02/07/2023] Open
Abstract
Background Claudins are key integral proteins of the tight junction. Although they play an essential role in controlling paracellular diffusion in epithelia, increasing evidence supports a role for these proteins in non-barrier forming activities. To elucidate a potential function for claudins outside of their traditional role in tight junctions, subcellular localization of claudin-4 was determined in normal mammary epithelial cells as well as breast and ovarian cancer cell lines and the effects of a claudin mimic peptide on cell motility were determined. Results Immunofluorescence revealed that claudin-4 was localized along cellular projections. Using a fluorescent peptide that mimics a conserved sequence in the second extracellular loop of a set of claudin subtypes, that includes claudin-4, exposure of this loop to the extracellular environment was confirmed in non-polarized cells. This peptide inhibited cell motility when normal mammary epithelial cells as well as breast and ovarian tumor cells were subjected to a wound healing assay. Knockdown of claudin-4 also inhibited cell motility and the mimic peptide had no effect on motility in the claudin-4 knockdown cells. This effect on motility was seen when cells were grown on collagen, but not when cells were grown on non-physiological cell adhesive or fibronectin. Conclusion The second extracellular loop of claudins is able to interact with the extracellular environment to promote normal and tumor cell motility when it is not associated with tight junction structures.
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Regulation of Tight Junctions for Therapeutic Advantages. CANCER METASTASIS - BIOLOGY AND TREATMENT 2013. [DOI: 10.1007/978-94-007-6028-8_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Claudin-2 promotes breast cancer liver metastasis by facilitating tumor cell interactions with hepatocytes. Mol Cell Biol 2012; 32:2979-91. [PMID: 22645303 DOI: 10.1128/mcb.00299-12] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
We previously identified claudin-2 as a functional mediator of breast cancer liver metastasis. We now confirm that claudin-2 levels are elevated in liver metastases, but not in skin metastases, compared to levels in their matched primary tumors in patients with breast cancer. Moreover, claudin-2 is specifically expressed in liver-metastatic breast cancer cells compared to populations derived from bone or lung metastases. The increased liver tropism exhibited by claudin-2-expressing breast cancer cells requires claudin-2-mediated interactions between breast cancer cells and primary hepatocytes. Furthermore, the reduction of the claudin-2 expression level, either in cancer cells or in primary hepatocytes, diminishes these heterotypic cell-cell interactions. Finally, we demonstrate that the first claudin-2 extracellular loop is essential for mediating tumor cell-hepatocyte interactions and the ability of breast cancer cells to form liver metastases in vivo. Thus, during breast cancer liver metastasis, claudin-2 shifts from acting within tight-junctional complexes to functioning as an adhesion molecule between breast cancer cells and hepatocytes.
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Immunohistochemical features of claudin-low intrinsic subtype in metaplastic breast carcinomas. Breast 2012; 21:354-60. [PMID: 22464177 DOI: 10.1016/j.breast.2012.03.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 02/22/2012] [Accepted: 03/02/2012] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The claudin-low molecular subtype of breast cancer includes triple negative invasive carcinomas, with a high frequency of metaplastic and medullary features. The aim of this study was to evaluate the immunohistochemistry expression of claudins in a series of metaplastic breast carcinomas. We also assessed other claudin-low features, such as the cancer stem cell-like and epithelial-to-mesenchymal transition phenotypes. RESULTS The majority of the cases showed weak or negative staining for membrane claudins expression. We found 76.9% (10/13) low expressing cases for claudin-1, 84.6% (11/13) for claudin-3 and claudin-4, and 92.3% (12/13) for claudin-7. Regarding the cancer stem cell marker ALDH1, 30.8% (4/13) showed positive staining. We also showed that the majority of the cases presented a CD44(+)CD24(-/low) phenotype, positivity for vimentin and lack of E-cadherin expression. Interestingly, these claudin-low molecular features were specific of the mesenchymal component of metaplastic breast carcinomas, since its frequency was very low in other breast cancer molecular subtypes, as luminal, HER2-overexpressing and non-metaplastic triple negative tumors. CONCLUSIONS The negative/low expression of claudins and E-cadherin, high levels of vimentin, and the breast cancer stem cell phenotype suggests that metaplastic breast carcinomas have similar features to the ones included in the claudin-low molecular subtype, specially their mesenchymal components.
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Mhawech-Fauceglia P, Wang D, Lele S, Frederick PJ, Pejovic T, Liu S. Claudin7 and moesin in endometrial Adenocarcinoma; a retrospective study of 265 patients. BMC Res Notes 2012; 5:65. [PMID: 22272721 PMCID: PMC3280166 DOI: 10.1186/1756-0500-5-65] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 01/24/2012] [Indexed: 01/06/2023] Open
Abstract
Background Metastasis is the main cause of death in cancer and is a multistep process. Moesin (MSN), a member of the ezrin-rdixin-moesin family and Claudin7 (CLDN7), a tight junction protein, both play a role in tumor cell metastasis. Previously, we found an over-expression of MSN and under-expression of CLDN7 at the mRNA level in uterine serous carcinoma in comparison to uterine endometrioid adenocarcinoma. The purpose of this study is to determine the protein expression of MSN and CLDN7 in endometrial cancer (EC) and to evaluate their prognostic value. Two hundred sixty-five patients with EC were retrieved from the archives. MSN and CLDN7 immunostaining were performed on the tissue paraffin sections. The expression of each antibody was reported and then correlated with clinicopathological prognostic factors including age, tumor grade, tumor stage, lympho-vascular involvement, depth of myometrial invasion, overall survival (OS), disease free survival (DFS) and death of disease (DOD). Results MSN and CLDN were expressed in 46% and 52% of overall cases. We observed an association between MSN+ staining and tumor grade, and serous and clear cell carcinoma subtypes (p < 0.001 each). There was an association between CLDN7+ staining and low tumor grade and endometrioid adenocarcinoma subtype (p < 0.001 and 0.001 respectively). However, no association between MSN and CLDN7 expression and outcome including OS, DOD, and DFS was found. Conclusion A significant prognostic value of MSN and CLDN7 in predicting disease outcomes in patients with EC was not demonstrated. Nevertheless, the high percentage of EC cases with MSN and CLDN7 immunoexpression, and their association with tumor grade and subtypes, suggests that these proteins might play a role in tumorigenesis of endometrial adenocarcinomas. Future studies are needed to shed light on their mechanistic properties in EC cells.
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Neesse A, Griesmann H, Gress TM, Michl P. Claudin-4 as therapeutic target in cancer. Arch Biochem Biophys 2012; 524:64-70. [PMID: 22286027 DOI: 10.1016/j.abb.2012.01.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 12/19/2011] [Accepted: 01/10/2012] [Indexed: 12/23/2022]
Abstract
BACKGROUND Intercellular junctional complexes such as adherens junctions and tight junctions are critical regulators of cellular polarity, paracellular permeability and metabolic and structural integrity of cellular networks. Abundant expression analysis data have yielded insights into the complex pattern of differentially expressed cell-adhesion proteins in epithelial cancers and provide a useful platform for functional, preclinical and clinical evaluation of novel targets. SCOPE OF REVIEW This review will focus on the role of claudin-4, an integral constituent of tight junctions, in the pathophysiology of epithelial malignancies with particular focus pancreatic cancer, and its potential applicability for prognostic, diagnostic and therapeutic approaches. MAJOR CONCLUSIONS Claudin-4 expression is widely dysregulated in epithelial malignancies and in a number of premalignant precursor lesions. Although the functional implications are only starting to unravel, claudin-4 seems to play an important role in tumour cell invasion and metastasis, and its dual role as receptor of Clostridium perfringens enterotoxin (CPE) opens exciting avenues for molecular targeted approaches. GENERAL SIGNIFICANCE Claudin-4 constitutes a promising molecular marker for prognosis, diagnosis and therapy of epithelial malignancies.
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Affiliation(s)
- A Neesse
- Department of Gastroenterology, Endocrinology and Metabolism, Philipps University Marburg, Baldinger Str., 35043 Marburg, Germany
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Tőkés AM, Szász AM, Juhász E, Schaff Z, Harsányi L, Molnár IA, Baranyai Z, Besznyák I, Zaránd A, Salamon F, Kulka J. Expression of tight junction molecules in breast carcinomas analysed by array PCR and immunohistochemistry. Pathol Oncol Res 2011; 18:593-606. [PMID: 22193974 DOI: 10.1007/s12253-011-9481-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 11/17/2011] [Indexed: 01/05/2023]
Abstract
In the past few decades an enormous amount of data became known to clarify the molecular composition and architecture of tight junctions (TJs). Despite the efforts, the expression and function of several TJ genes and proteins in breast carcinoma are still not known and some of the data are contradictory. The expression of forty-four TJ associated genes was examined at mRNA level in eighteen invasive ductal breast carcinoma samples and corresponding normal breast tissues by using low density array PCR. Expressions of claudins (CLDNs) 5, 10, 16, 17, and 18, and ZO-1, ZO-2 were evaluated by immunohistochemistry as well. Using immunohistochemical phenotype as a surrogate for the genetic subtype, 11 luminal A, 3 luminal B, 3 triple negative and one HER2+ cases were included. Ten genes were significantly downregulated in tumors compared with normal breast tissues (CLDNs 5, 10, 16, 18, 19, CTNNAL1, JAM-B, ZO-1, ZO-2 and PARD3), whereas one gene (CLDN17) was significantly up-regulated in tumors when compared with normal breast. At protein level CLDNs 5, 10, 16, 18, ZO-1 and ZO-2 were downregulated in tumors as compared with normal breast tissue. CLDN17 showed variable expression in tumor tissues in comparison to normal breast. In the single HER2+ tumor when compared with the other subtypes CLDNs 5, 16, 17, 18, CTNNAL1, JAM-B, ZO-1, ZO-2 and PARD3 genes were found to be upregulated. We found altered TJ genes and proteins whose expression has not yet been associated with breast carcinoma. Our findings show a tendency of TJ genes and proteins to be downregulated in breast cancer. Further studies are necessary to examine whether the downregulation of the above mentioned TJ associated genes and proteins may contribute to the malignant progression of invasive ductal breast carcinomas.
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Affiliation(s)
- Anna-Mária Tőkés
- 2nd Department of Pathology, Semmelweis University, Ulloi ut 93, 1091 Budapest, Hungary.
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Cardiff RD, Couto S, Bolon B. Three interrelated themes in current breast cancer research: gene addiction, phenotypic plasticity, and cancer stem cells. Breast Cancer Res 2011; 13:216. [PMID: 22067349 PMCID: PMC3262190 DOI: 10.1186/bcr2887] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Recent efforts to understand breast cancer biology involve three interrelated themes that are founded on a combination of clinical and experimental observations. The central concept is gene addiction. The clinical dilemma is the escape from gene addiction, which is mediated, in part, by phenotypic plasticity as exemplified by epithelial-to-mesenchymal transition and mesenchymal-to-epithelial transition. Finally, cancer stem cells are now recognized as the basis for minimal residual disease and malignant progression over time. These themes cooperate in breast cancer, as induction of epithelial-to-mesenchymal transition enhances self-renewal and expression of cancer stem cells, which are believed to facilitate tumor resistance.
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Affiliation(s)
- Robert D Cardiff
- Department of Pathology, Center for Comparative Medicine, University of California, Davis, County Road 98 and Hutchison Drive, Davis, CA 95616, USA
| | - Suzana Couto
- Pathology Department, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080-4990, USA
| | - Brad Bolon
- GEMpath, Inc., 2867 Humboldt Cir., Longmont, CO 80503, USA
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Youn HJ, Jung SH. Invited Commentary: Role of Estrogen Receptor-α in Regulating Claudin-6 Expression in Breast Cancer Cells. J Breast Cancer 2011; 14:76-7. [PMID: 21847400 PMCID: PMC3148516 DOI: 10.4048/jbc.2011.14.1.76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Accepted: 03/03/2011] [Indexed: 11/30/2022] Open
Affiliation(s)
- Hyun Jo Youn
- Division of Breast · Thyroid Surgery, Department of Surgery, Chonbuk National University Medical School, Jeonju, Korea
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Abstract
Tight junctions are the most apically localized part of the epithelial junctional complex. They regulate the permeability and polarity of cell layers and create compartments in cell membranes. Claudins are structural molecules of tight junctions. There are 27 claudins known, and expression of different claudins is responsible for changes in the electrolyte and solute permeability in cells layers. Studies have shown that claudins and tight junctions also protect multicellular organisms from infections and that some infectious agents may use claudins as targets to invade and weaken the host's defense. In neoplastic diseases, claudin expression may be up- or downregulated. Since their expression is associated with specific tumor types or with specific locations of tumors to a certain degree, they can, in a restricted sense, also be used as tumor markers. However, the regulation of claudin expression is complex involving growth factors and integrins, protein kinases, proto-oncogens and transcription factors. In this review, the significance of claudins is discussed in lung disease and development.
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Affiliation(s)
- Ylermi Soini
- Department of Pathology and Forensic Medicine, Institute of Clinical Medicine, Pathology and Forensic Medicine, School of Medicine, University of Eastern Finland, Cancer Center of Eastern Finland, PO Box 1627, FI-70211 Kuopio, Finland.
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