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Manjunath M, Ravindran F, Sharma S, Siddiqua H, Raghavan SC, Choudhary B. Disarib, a Specific BCL2 Inhibitor, Induces Apoptosis in Triple-Negative Breast Cancer Cells and Impedes Tumour Progression in Xenografts by Altering Mitochondria-Associated Processes. Int J Mol Sci 2024; 25:6485. [PMID: 38928195 PMCID: PMC11203414 DOI: 10.3390/ijms25126485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Targeted cancer therapy aims to disrupt the functions of proteins that regulate cancer progression, mainly by using small molecule inhibitors (SMIs). SMIs exert their effect by modulating signalling pathways, organelle integrity, chromatin components, and several biosynthetic processes essential for cell division and survival. Antiapoptotic protein BCL2 is highly upregulated in many cancers compared with normal cells, making it an ideal target for cancer therapy. Around 75% of primary breast cancers overexpress BCL2, providing an opportunity to explore BCL2 inhibitors as a therapeutic option. Disarib is an SMI that has been developed as a selective BCL2 inhibitor. Disarib works by disrupting BCL2-BAK interaction and activating intrinsic apoptotic pathways in leukemic cells while sparing normal cells. We investigated the effects of Disarib, a BCL2 specific inhibitor, on breast cancer cells and xenografts. Cytotoxicity and fluorometric assays revealed that Disarib induced cell death by increasing reactive oxygen species and activating intrinsic apoptotic pathways in Triple-Negative Breast Cancer cells (MDA-MB-231 and MDA-MB-468). Disarib also affected the colony-forming properties of these cells. MDA-MB-231- and MDA-MB-468-derived xenografts showed a significant reduction in tumours upon Disarib treatment. Through the transcriptomics approach, we also explored the influence of BCL2 inhibitors on energy metabolism, mitochondrial dynamics, and epithelial-to-mesenchymal transition (EMT). Mitochondrial dynamics and glucose metabolism mainly regulate energy metabolism. The change in energetics regulates tumour growth through epithelial-mesenchymal transition, and angiogenesis. RNA sequencing (RNAseq) analysis revealed that BCL2 inhibitors ABT-199 and Disarib maintain Oxphos levels in MDA-MB-231. However, key glycolytic genes were significantly downregulated. Mitochondrial fission genes were seen to be downregulated both in RNAseq data and semi quantitative real time polymerase chain reaction (qRTPCR) in Disarib-treated TNBC cells and xenografts. Lastly, Disarib inhibited wound healing and epithelial-to-mesenchymal transition. This study showed that Disarib disrupts mitochondrial function, activates the intrinsic apoptotic pathway in breast cancer, and inhibits epithelial-to-mesenchymal transition both in vitro and in vivo. These findings highlight Disarib's potential as a multifaceted therapeutic strategy for patients with Triple-Negative Breast Cancer.
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Affiliation(s)
- Meghana Manjunath
- Department of Biotechnology and Applied Bioinformatics, Institute of Bioinformatics and Applied Biotechnology, Electronic City Phase 1, Bengaluru 560100, India
| | - Febina Ravindran
- Department of Biotechnology and Applied Bioinformatics, Institute of Bioinformatics and Applied Biotechnology, Electronic City Phase 1, Bengaluru 560100, India
| | - Shivangi Sharma
- Department of Biotechnology and Applied Bioinformatics, Institute of Bioinformatics and Applied Biotechnology, Electronic City Phase 1, Bengaluru 560100, India
- Indian Institute of Science, Bengaluru 560012, India; (H.S.); (S.C.R.)
| | - Humaira Siddiqua
- Indian Institute of Science, Bengaluru 560012, India; (H.S.); (S.C.R.)
| | | | - Bibha Choudhary
- Department of Biotechnology and Applied Bioinformatics, Institute of Bioinformatics and Applied Biotechnology, Electronic City Phase 1, Bengaluru 560100, India
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Yan Z, Zhu J, Liu Y, Li Z, Liang X, Zhou S, Hou Y, Chen H, Zhou L, Wang P, Ao X, Gao S, Huang X, Zhou P, Gu Y. DNA-PKcs/AKT1 inhibits epithelial-mesenchymal transition during radiation-induced pulmonary fibrosis by inducing ubiquitination and degradation of Twist1. Clin Transl Med 2024; 14:e1690. [PMID: 38760896 PMCID: PMC11101672 DOI: 10.1002/ctm2.1690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 04/21/2024] [Accepted: 04/26/2024] [Indexed: 05/20/2024] Open
Abstract
INTRODUCTION Radiation-induced pulmonary fibrosis (RIPF) is a chronic, progressive, irreversible lung interstitial disease that develops after radiotherapy. Although several previous studies have focused on the mechanism of epithelial-mesenchymal transition (EMT) in lung epithelial cells, the essential factors involved in this process remain poorly understood. The DNA-dependent protein kinase catalytic subunit (DNA-PKcs) exhibits strong repair capacity when cells undergo radiation-induced damage; whether DNA-PKcs regulates EMT during RIPF remains unclear. OBJECTIVES To investigate the role and molecular mechanism of DNA-PKcs in RIPF and provide an important theoretical basis for utilising DNA-PKcs-targeted drugs for preventing RIPF. METHODS DNA-PKcs knockout (DPK-/-) mice were generated via the Cas9/sgRNA technique and subjected to whole chest ionizing radiation (IR) at a 20 Gy dose. Before whole chest IR, the mice were intragastrically administered the DNA-PKcs-targeted drug VND3207. Lung tissues were collected at 1 and 5 months after IR. RESULTS The expression of DNA-PKcs is low in pulmonary fibrosis (PF) patients. DNA-PKcs deficiency significantly exacerbated RIPF by promoting EMT in lung epithelial cells. Mechanistically, DNA-PKcs deletion by shRNA or inhibitor NU7441 maintained the protein stability of Twist1. Furthermore, AKT1 mediated the interaction between DNA-PKcs and Twist1. High Twist1 expression and EMT-associated changes caused by DNA-PKcs deletion were blocked by insulin-like growth factor-1 (IGF-1), an AKT1 agonist. The radioprotective drug VND3207 prevented IR-induced EMT and alleviated RIPF in mice by stimulating the kinase activity of DNA-PKcs. CONCLUSION Our study clarified the critical role and mechanism of DNA-PKcs in RIPF and showed that it could be a potential target for preventing RIPF.
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Affiliation(s)
- Ziyan Yan
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Jiaojiao Zhu
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Yuhao Liu
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Zhongqiu Li
- State Key Laboratory of Stem Cell and Reproductive BiologyInstitute of ZoologyChinese Academy of SciencesBeijingChina
| | - Xinxin Liang
- Hengyang Medical CollegeUniversity of South ChinaHengyangChina
| | - Shenghui Zhou
- Hengyang Medical CollegeUniversity of South ChinaHengyangChina
| | - Yifan Hou
- College of Life SciencesHebei UniversityBaodingChina
| | - Huixi Chen
- Hengyang Medical CollegeUniversity of South ChinaHengyangChina
| | - Lin Zhou
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Ping Wang
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Xingkun Ao
- Hengyang Medical CollegeUniversity of South ChinaHengyangChina
| | - Shanshan Gao
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Xin Huang
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Ping‐Kun Zhou
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
| | - Yongqing Gu
- Beijing Key Laboratory for RadiobiologyBeijing Institute of Radiation MedicineBeijingChina
- Hengyang Medical CollegeUniversity of South ChinaHengyangChina
- College of Life SciencesHebei UniversityBaodingChina
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Huna A, Flaman JM, Lodillinsky C, Zhu K, Makulyte G, Pakulska V, Coute Y, Ruisseaux C, Saintigny P, Hernandez-Vargas H, Defossez PA, Boissan M, Martin N, Bernard D. RSK3 switches cell fate: from stress-induced senescence to malignant progression. J Exp Clin Cancer Res 2023; 42:318. [PMID: 38008756 PMCID: PMC10680185 DOI: 10.1186/s13046-023-02909-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 11/19/2023] [Indexed: 11/28/2023] Open
Abstract
BACKGROUND TGFβ induces several cell phenotypes including senescence, a stable cell cycle arrest accompanied by a secretory program, and epithelial-mesenchymal transition (EMT) in normal epithelial cells. During carcinogenesis cells lose the ability to undergo senescence in response to TGFβ but they maintain an EMT, which can contribute to tumor progression. Our aim was to identify mechanisms promoting TGFβ-induced senescence escape. METHODS In vitro experiments were performed with primary human mammary epithelial cells (HMEC) immortalized by hTert. For kinase library screen and modulation of gene expression retroviral transduction was used. To characterize gene expression, RNA microarray with GSEA analysis and RT-qPCR were used. For protein level and localization, Western blot and immunofluorescence were performed. For senescence characterization crystal violet assay, Senescence Associated-β-Galactosidase activity, EdU staining were conducted. To determine RSK3 partners FLAG-baited immunoprecipitation and mass spectrometry-based proteomic analyses were performed. Proteosome activity and proteasome enrichment assays were performed. To validate the role of RSK3 in human breast cancer, analysis of METABRIC database was performed. Murine intraductal xenografts using MCF10DCIS.com cells were carried out, with histological and immunofluorescence analysis of mouse tissue sections. RESULTS A screen with active kinases in HMECs upon TGFβ treatment identified that the serine threonine kinase RSK3, or RPS6KA2, a kinase mainly known to regulate cancer cell death including in breast cancer, reverted TGFβ-induced senescence. Interestingly, RSK3 expression decreased in response to TGFβ in a SMAD3-dependent manner, and its constitutive expression rescued SMAD3-induced senescence, indicating that a decrease in RSK3 itself contributes to TGFβ-induced senescence. Using transcriptomic analyses and affinity purification coupled to mass spectrometry-based proteomics, we unveiled that RSK3 regulates senescence by inhibiting the NF-κΒ pathway through the decrease in proteasome-mediated IκBα degradation. Strikingly, senescent TGFβ-treated HMECs display features of epithelial to mesenchymal transition (EMT) and during RSK3-induced senescence escaped HMECs conserve EMT features. Importantly, RSK3 expression is correlated with EMT and invasion, and inversely correlated with senescence and NF-κΒ in human claudin-low breast tumors and its expression enhances the formation of breast invasive tumors in the mouse mammary gland. CONCLUSIONS We conclude that RSK3 switches cell fate from senescence to malignancy in response to TGFβ signaling.
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Affiliation(s)
- Anda Huna
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France
- Equipe Labellisée La Ligue Contre Le Cancer, Lyon, France
| | - Jean-Michel Flaman
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France
- Equipe Labellisée La Ligue Contre Le Cancer, Lyon, France
| | - Catalina Lodillinsky
- INSERM UMR_S 938, Saint-Antoine Research Center, CRSA, University Sorbonne, Paris, France
- Research Area, Instituto de Oncología Ángel H. Roffo, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Kexin Zhu
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France
- Equipe Labellisée La Ligue Contre Le Cancer, Lyon, France
| | - Gabriela Makulyte
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France
- Equipe Labellisée La Ligue Contre Le Cancer, Lyon, France
| | - Victoria Pakulska
- Université Grenoble Alpes, Inserm, UA13 BGE, CNRS, CEA, FR2048, 38000, Grenoble, France
| | - Yohann Coute
- Université Grenoble Alpes, Inserm, UA13 BGE, CNRS, CEA, FR2048, 38000, Grenoble, France
| | - Clémence Ruisseaux
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France
| | - Pierre Saintigny
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France
| | - Hector Hernandez-Vargas
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France
| | | | - Mathieu Boissan
- INSERM UMR_S 938, Saint-Antoine Research Center, CRSA, University Sorbonne, Paris, France
| | - Nadine Martin
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France
- Equipe Labellisée La Ligue Contre Le Cancer, Lyon, France
| | - David Bernard
- Cancer Research Center of Lyon, Inserm U1052, CNRS UMR 5286, Université de Lyon, Centre Léon Bérard, 69373, Lyon, France.
- Equipe Labellisée La Ligue Contre Le Cancer, Lyon, France.
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Promny T, Kutz CS, Jost T, Distel LV, Kadam S, Schmid R, Arkudas A, Horch RE, Kengelbach-Weigand A. An In Vitro Approach for Investigating the Safety of Lipotransfer after Breast-Conserving Therapy. J Pers Med 2022; 12:jpm12081284. [PMID: 36013233 PMCID: PMC9409821 DOI: 10.3390/jpm12081284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/19/2022] [Accepted: 07/30/2022] [Indexed: 11/16/2022] Open
Abstract
The application of lipotransfer after breast-conserving therapy (BCT) and irradiation in breast cancer patients is an already widespread procedure for reconstructing volume deficits of the diseased breast. Nevertheless, the safety of lipotransfer has still not been clarified yet due to contradictory data. The goal of this in vitro study was to further elucidate the potential effects of lipotransfer on the irradiated remaining breast tissue. The mammary epithelial cell line MCF-10A was co-cultured with the fibroblast cell line MRC-5 and irradiated with 2 and 5 Gy. Afterwards, cells were treated with conditioned medium (CM) from adipose-derived stem cells (ADSC), and the effects on the cellular functions of MCF-10A cells and on gene expression at the mRNA level in MCF-10A and MRC-5 cells were analyzed. Treatment with ADSC CM stimulated transmigration and invasion and decreased the surviving fraction of MCF-10A cells. Further, the expression of cytokines, extracellular, and mesenchymal markers was enhanced in mammary epithelial cells. Only an effect of ADSC CM on irradiated fibroblasts could be observed. The present data suggest epithelial–mesenchymal transition-like changes in the epithelial mammary breast cell line. Thus, the benefits of lipotransfer after BCT should be critically weighed against its possible risks for the affected patients.
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Affiliation(s)
- Theresa Promny
- Department of Plastic and Hand Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
- Correspondence: ; Tel.: +49-9131-853327
| | - Chiara-Sophia Kutz
- Department of Plastic and Hand Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Tina Jost
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Luitpold V. Distel
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Sheetal Kadam
- Department of Plastic and Hand Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Rafael Schmid
- Department of Plastic and Hand Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Andreas Arkudas
- Department of Plastic and Hand Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Raymund E. Horch
- Department of Plastic and Hand Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Annika Kengelbach-Weigand
- Department of Plastic and Hand Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
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Moyret-Lalle C, Prodhomme MK, Burlet D, Kashiwagi A, Petrilli V, Puisieux A, Seimiya H, Tissier A. Role of EMT in the DNA damage response, double-strand break repair pathway choice and its implications in cancer treatment. Cancer Sci 2022; 113:2214-2223. [PMID: 35534984 PMCID: PMC9277259 DOI: 10.1111/cas.15389] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 11/30/2022] Open
Abstract
Numerous epithelial–mesenchymal transition (EMT) characteristics have now been demonstrated to participate in tumor development. Indeed, EMT is involved in invasion, acquisition of stem cell properties, and therapy‐associated resistance of cancer cells. Together, these mechanisms offer advantages in adapting to changes in the tumor microenvironment. However, recent findings have shown that EMT‐associated transcription factors (EMT‐TFs) may also be involved in DNA repair. A better understanding of the coordination between the DNA repair pathways and the role played by some EMT‐TFs in the DNA damage response (DDR) should pave the way for new treatments targeting tumor‐specific molecular vulnerabilities, which result in selective destruction of cancer cells. Here we review recent advances, providing novel insights into the role of EMT in the DDR and repair pathways, with a particular focus on the influence of EMT on cellular sensitivity to damage, as well as the implications of these relationships for improving the efficacy of cancer treatments.
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Affiliation(s)
- Caroline Moyret-Lalle
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Cancer Research Centre of Lyon, Lyon, France.,LabEx DEVweCAN, Université de Lyon, Lyon, France
| | - Mélanie K Prodhomme
- Department of Epigenetics & Molecular Carcinogenesis, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Delphine Burlet
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Cancer Research Centre of Lyon, Lyon, France
| | - Ayaka Kashiwagi
- Division of Molecular Biotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.,Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Virginie Petrilli
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Cancer Research Centre of Lyon, Lyon, France
| | - Alain Puisieux
- Institut Curie, Versailles Saint-Quentin-en-Yvelines University, PSL Research University, Paris, France
| | - Hiroyuki Seimiya
- Division of Molecular Biotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan.,Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Agnès Tissier
- Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Cancer Research Centre of Lyon, Lyon, France
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Kim BG, Malek E, Choi SH, Ignatz-Hoover JJ, Driscoll JJ. Novel therapies emerging in oncology to target the TGF-β pathway. J Hematol Oncol 2021; 14:55. [PMID: 33823905 PMCID: PMC8022551 DOI: 10.1186/s13045-021-01053-x] [Citation(s) in RCA: 195] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/01/2021] [Indexed: 12/22/2022] Open
Abstract
The TGF-β signaling pathway governs key cellular processes under physiologic conditions and is deregulated in many pathologies, including cancer. TGF-β is a multifunctional cytokine that acts in a cell- and context-dependent manner as a tumor promoter or tumor suppressor. As a tumor promoter, the TGF-β pathway enhances cell proliferation, migratory invasion, metastatic spread within the tumor microenvironment and suppresses immunosurveillance. Collectively, the pleiotropic nature of TGF-β signaling contributes to drug resistance, tumor escape and undermines clinical response to therapy. Based upon a wealth of preclinical studies, the TGF-β pathway has been pharmacologically targeted using small molecule inhibitors, TGF-β-directed chimeric monoclonal antibodies, ligand traps, antisense oligonucleotides and vaccines that have been now evaluated in clinical trials. Here, we have assessed the safety and efficacy of TGF-β pathway antagonists from multiple drug classes that have been evaluated in completed and ongoing trials. We highlight Vactosertib, a highly potent small molecule TGF-β type 1 receptor kinase inhibitor that is well-tolerated with an acceptable safety profile that has shown efficacy against multiple types of cancer. The TGF-β ligand traps Bintrafusp alfa (a bifunctional conjugate that binds TGF-β and PD-L1), AVID200 (a computationally designed trap of TGF-β receptor ectodomains fused to an Fc domain) and Luspatercept (a recombinant fusion that links the activin receptor IIb to IgG) offer new ways to fight difficult-to-treat cancers. While TGF-β pathway antagonists are rapidly emerging as highly promising, safe and effective anticancer agents, significant challenges remain. Minimizing the unintentional inhibition of tumor-suppressing activity and inflammatory effects with the desired restraint on tumor-promoting activities has impeded the clinical development of TGF-β pathway antagonists. A better understanding of the mechanistic details of the TGF-β pathway should lead to more effective TGF-β antagonists and uncover biomarkers that better stratify patient selection, improve patient responses and further the clinical development of TGF-β antagonists.
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Affiliation(s)
- Byung-Gyu Kim
- Division of Hematology and Oncology, Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
| | - Ehsan Malek
- Division of Hematology and Oncology, Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Adult Hematologic Malignancies and Stem Cell Transplant Section, Seidman Cancer Center, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Sung Hee Choi
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH, USA
| | - James J Ignatz-Hoover
- Division of Hematology and Oncology, Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, USA
- Adult Hematologic Malignancies and Stem Cell Transplant Section, Seidman Cancer Center, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - James J Driscoll
- Division of Hematology and Oncology, Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH, USA.
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA.
- Adult Hematologic Malignancies and Stem Cell Transplant Section, Seidman Cancer Center, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.
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Tashireva LA, Savelieva OE, Grigoryeva ES, Nikitin YV, Denisov EV, Vtorushin SV, Zavyalova MV, Cherdyntseva NV, Perelmuter VM. Heterogeneous Manifestations of Epithelial-Mesenchymal Plasticity of Circulating Tumor Cells in Breast Cancer Patients. Int J Mol Sci 2021; 22:2504. [PMID: 33801519 PMCID: PMC7958863 DOI: 10.3390/ijms22052504] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 12/22/2022] Open
Abstract
To date, there is indisputable evidence of significant CTC heterogeneity in carcinomas, in particular breast cancer. The heterogeneity of CTCs is manifested in the key characteristics of tumor cells related to metastatic progression - stemness and epithelial-mesenchymal (EMT) plasticity. It is still not clear what markers can characterize the phenomenon of EMT plasticity in the range from epithelial to mesenchymal phenotypes. In this article we examine the manifestations of EMT plasticity in the CTCs in breast cancer. The prospective study included 39 patients with invasive carcinoma of no special type. CTC phenotypes were determined by flow cytometry before any type of treatment. EMT features of CTC were assessed using antibodies against CD45, CD326 (EpCam), CD325 (N-cadherin), CK7, Snail, and Vimentin. Circulating tumor cells in breast cancer are characterized by pronounced heterogeneity of EMT manifestations. The results of the study indicate that the majority of heterogeneous CTC phenotypes (22 out of 24 detectable) exhibit epithelial-mesenchymal plasticity. The variability of EMT manifestations does not prevent intravasation. Co-expression of EpCAM and CK7, regardless of the variant of co-expression of Snail, N-cadherin, and Vimentin, are associated with a low number of CTCs. Intrapersonal heterogeneity is manifested by the detection of several CTC phenotypes in each patient. Interpersonal heterogeneity is manifested by various combinations of CTC phenotypes in patients (from 1 to 17 phenotypes).
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Affiliation(s)
- Liubov A. Tashireva
- Cancer Research Institute, Tomsk National Research Medical Center, 634050 Tomsk, Russia; (L.A.T.); (E.S.G.); (E.V.D.); (S.V.V.); (M.V.Z.); (N.V.C.); (V.M.P.)
| | - Olga E. Savelieva
- Cancer Research Institute, Tomsk National Research Medical Center, 634050 Tomsk, Russia; (L.A.T.); (E.S.G.); (E.V.D.); (S.V.V.); (M.V.Z.); (N.V.C.); (V.M.P.)
| | - Evgeniya S. Grigoryeva
- Cancer Research Institute, Tomsk National Research Medical Center, 634050 Tomsk, Russia; (L.A.T.); (E.S.G.); (E.V.D.); (S.V.V.); (M.V.Z.); (N.V.C.); (V.M.P.)
| | - Yuri V. Nikitin
- Department of Clinical Biochemistry and Laboratory Diagnostics, Military Medical Academy N.a. S.M. Kirov, 190000 St. Petersburg, Russia;
| | - Evgeny V. Denisov
- Cancer Research Institute, Tomsk National Research Medical Center, 634050 Tomsk, Russia; (L.A.T.); (E.S.G.); (E.V.D.); (S.V.V.); (M.V.Z.); (N.V.C.); (V.M.P.)
| | - Sergey V. Vtorushin
- Cancer Research Institute, Tomsk National Research Medical Center, 634050 Tomsk, Russia; (L.A.T.); (E.S.G.); (E.V.D.); (S.V.V.); (M.V.Z.); (N.V.C.); (V.M.P.)
| | - Marina V. Zavyalova
- Cancer Research Institute, Tomsk National Research Medical Center, 634050 Tomsk, Russia; (L.A.T.); (E.S.G.); (E.V.D.); (S.V.V.); (M.V.Z.); (N.V.C.); (V.M.P.)
| | - Nadezhda V. Cherdyntseva
- Cancer Research Institute, Tomsk National Research Medical Center, 634050 Tomsk, Russia; (L.A.T.); (E.S.G.); (E.V.D.); (S.V.V.); (M.V.Z.); (N.V.C.); (V.M.P.)
| | - Vladimir M. Perelmuter
- Cancer Research Institute, Tomsk National Research Medical Center, 634050 Tomsk, Russia; (L.A.T.); (E.S.G.); (E.V.D.); (S.V.V.); (M.V.Z.); (N.V.C.); (V.M.P.)
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Micro-endoscopy for Live Small Animal Fluorescent Imaging. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1310:153-186. [PMID: 33834437 DOI: 10.1007/978-981-33-6064-8_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Intravital microscopy has emerged as a powerful technique for the fluorescent visualization of cellular- and subcellular-level biological processes in vivo. However, the size of objective lenses used in standard microscopes currently makes it difficult to access internal organs with minimal invasiveness in small animal models, such as mice. Here we describe front- and side-view designs for small-diameter endoscopes based on gradient-index lenses, their construction, their integration into laser scanning confocal microscopy platforms, and their applications for in vivo imaging of fluorescent cells and microvasculature in various organs, including the kidney, bladder, heart, brain, and gastrointestinal tracts, with a focus on the new techniques developed for each imaging application. The combination of novel fluorescence techniques with these powerful imaging methods promises to continue providing novel insights into a variety of diseases.
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Tashireva LA, Zavyalova MV, Savelieva OE, Gerashchenko TS, Kaigorodova EV, Denisov EV, Perelmuter VM. Single Tumor Cells With Epithelial-Like Morphology Are Associated With Breast Cancer Metastasis. Front Oncol 2020; 10:50. [PMID: 32154161 PMCID: PMC7050653 DOI: 10.3389/fonc.2020.00050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 01/13/2020] [Indexed: 01/06/2023] Open
Abstract
Introduction: The identification of tumor cells that can be potential metastatic seeds would reach two key aims—prognosis of metastasis risk and appointment of the optimal adjuvant therapy to prevent metastatic disease. Single tumor cells (STCs) located out of multicellular structures can most likely demonstrate features that are needed to initiate metastasis. Methods: One-hundred-and-thirty-five patients with invasive breast carcinoma of no special type have been enrolled. Molecular subtypes of breast cancer were categorized according to St. Gallen recommendations. Hematoxylin and eosin staining was used to identify STCs with epithelial-like morphology (eSTCs) in breast tumors. Immunofluorescence staining was applied to evaluate stemness and epithelial–mesenchymal transition (EMT) in STCs. The correlation between STCs and recurrence and metastasis-free survival (MFS) was performed using the Kaplan–Meier method and the log-rank test. Results: Distant metastasis was more frequent in eSTC-positive than eSTC-negative patients (28.0% vs. 9.4%, p = 0.007). When tumor types were analyzed separately, distant metastasis tended to be more frequent in eSTC-positive than eSTC-negative patients for HER2-positive cancer [75.0% (3/4) vs. 12.5% (1/8), p = 0.066]. In luminal A [22.7% (5/22) vs. 10.0% (3/30), p = 0.259], luminal B [21.1% (4/19) vs. 6.7% (2/30), p = 0.189], and triple-negative [40.0% (2/5) vs. 11.8% (2/17), p = 0.209] cancers, distance metastasis was not associated with eSTCs. Median MFS was not reached in eSTC-positive and eSTC-negative patients. eSTC-positive patients had a higher risk of breast cancer metastasis [hazard ratio (HR) 3.57, 95% confidence interval (CI): 1.46–8.71; p = 0.001]. When tumor types were analyzed separately, a higher risk of breast cancer metastasis occurred only in HER2-positive patients (HR 8.49, 95% CI: 1.29–55.59; p = 0.016). Immunofluorescence analysis revealed mesenchymal-like STCs (mSTCs) and inter- and intra-tumor heterogeneity in STCs. There were breast tumors with either eSTCs or mSTCs and tumors with both types of STCs. Both eSTCs and mSTCs were represented by cells with different stem and/or EMT phenotypes. Conclusions: STCs with epithelial-like morphology contribute to breast cancer metastasis and represent an attractive model for studying mechanisms of metastatic seeding. The assessment of STCs in histological sections of breast tumors can be a simple and effective method for the prediction of metastasis risk.
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Affiliation(s)
- Liubov A Tashireva
- Department of General and Molecular Pathology, Cancer Research Institute, Tomsk National Research Medical Center, Tomsk, Russia
| | - Marina V Zavyalova
- Department of General and Molecular Pathology, Cancer Research Institute, Tomsk National Research Medical Center, Tomsk, Russia.,Department of Pathological Anatomy, Siberian State Medical University, Tomsk, Russia
| | - Olga E Savelieva
- Department of General and Molecular Pathology, Cancer Research Institute, Tomsk National Research Medical Center, Tomsk, Russia
| | - Tatyana S Gerashchenko
- Laboratory of Cancer Progression Biology, Cancer Research Institute, Tomsk National Research Medical Center, Tomsk, Russia
| | - Evgeniya V Kaigorodova
- Department of General and Molecular Pathology, Cancer Research Institute, Tomsk National Research Medical Center, Tomsk, Russia.,Department of Biochemistry and Molecular Biology, Siberian State Medical University, Tomsk, Russia
| | - Evgeny V Denisov
- Laboratory of Cancer Progression Biology, Cancer Research Institute, Tomsk National Research Medical Center, Tomsk, Russia.,Department of Organic Chemistry, Tomsk State University, Tomsk, Russia
| | - Vladimir M Perelmuter
- Department of General and Molecular Pathology, Cancer Research Institute, Tomsk National Research Medical Center, Tomsk, Russia
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10
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EMT Transcription Factors Are Involved in the Altered Cell Adhesion under Simulated Microgravity Effect or Overloading by Regulation of E-cadherin. Int J Mol Sci 2020; 21:ijms21041349. [PMID: 32079291 PMCID: PMC7072942 DOI: 10.3390/ijms21041349] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/29/2020] [Accepted: 02/12/2020] [Indexed: 12/12/2022] Open
Abstract
In order to study the effect of stress changes on cell adhesion, HUVEC, and MCF-7 cells were treated with simulated microgravity effect (SMG) and overloading (OL). Methods: Rotating Wall Vessel (2D-RWVS) bioreactor was used to create different culture conditions. In addition, the alteration of cell adhesion states, adhesion proteins, and relating factors of adhesion molecules under these two conditions were detected using cell adhesion assay, immunofluorescence, western blot, and qRT-PCR technology. Results: The results showed that the adhesion of cells decreased under SMG, while increased under OL. The expressions of integrin β1, paxillin, and E-cadherin under SMG condition were down-regulated as compared to that of the control group showing a time-dependent pattern of the decreasing. However, under OL condition, the expressions of adhesion proteins were up-regulated as compared to that of the control group, with a time-dependent pattern of increasing. EMT transcription factors Snail, twist, and ZEB1 were up-regulated under SMG while down-regulated under OL. Conclusion: Collectively our results indicated that cells could respond to stress changes to regulate the expressions of adhesion proteins and adapt their adhesion state to the altered mechanical environment. The altered cell adhesion in response to the mechanical stress may involve the changed expression of EMT-inducing factors, Snail, Twist, and ZEB1under the SMG/OL conditions.
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11
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Singh S, Chakrabarti R. Consequences of EMT-Driven Changes in the Immune Microenvironment of Breast Cancer and Therapeutic Response of Cancer Cells. J Clin Med 2019; 8:jcm8050642. [PMID: 31075939 PMCID: PMC6572359 DOI: 10.3390/jcm8050642] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 04/30/2019] [Accepted: 05/04/2019] [Indexed: 02/06/2023] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is a process through which epithelial cells lose their epithelial characteristics and cell–cell contact, thus increasing their invasive potential. In addition to its well-known roles in embryonic development, wound healing, and regeneration, EMT plays an important role in tumor progression and metastatic invasion. In breast cancer, EMT both increases the migratory capacity and invasive potential of tumor cells, and initiates protumorigenic alterations in the tumor microenvironment (TME). In particular, recent evidence has linked increased expression of EMT markers such as TWIST1 and MMPs in breast tumors with increased immune infiltration in the TME. These immune cells then provide cues that promote immune evasion by tumor cells, which is associated with enhanced tumor progression and metastasis. In the current review, we will summarize the current knowledge of the role of EMT in the biology of different subtypes of breast cancer. We will further explore the correlation between genetic switches leading to EMT and EMT-induced alterations within the TME that drive tumor growth and metastasis, as well as their possible effect on therapeutic response in breast cancer.
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Affiliation(s)
- Snahlata Singh
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Rumela Chakrabarti
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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12
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Tejero R, Huang Y, Katsyv I, Kluge M, Lin JY, Tome-Garcia J, Daviaud N, Wang Y, Zhang B, Tsankova NM, Friedel CC, Zou H, Friedel RH. Gene signatures of quiescent glioblastoma cells reveal mesenchymal shift and interactions with niche microenvironment. EBioMedicine 2019; 42:252-269. [PMID: 30952620 PMCID: PMC6491796 DOI: 10.1016/j.ebiom.2019.03.064] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 03/21/2019] [Accepted: 03/21/2019] [Indexed: 12/18/2022] Open
Abstract
Background Glioblastoma (GBM), a highly malignant brain tumor, invariably recurs after therapy. Quiescent GBM cells represent a potential source of tumor recurrence, but little is known about their molecular underpinnings. Methods Patient-derived GBM cells were engineered by CRISPR/Cas9-assisted knock-in of an inducible histone2B-GFP (iH2B-GFP) reporter to track cell division history. We utilized an in vitro 3D GBM organoid approach to isolate live quiescent GBM (qGBM) cells and their proliferative counterparts (pGBM) to compare stem cell properties and therapy resistance. Gene expression programs of qGBM and pGBM cells were analyzed by RNA-Seq and NanoString platforms. Findings H2B-GFP-retaining qGBM cells exhibited comparable self-renewal capacity but higher therapy resistance relative to pGBM. Quiescent GBM cells expressed distinct gene programs that affect cell cycle control, metabolic adaptation, and extracellular matrix (ECM) interactions. Transcriptome analysis also revealed a mesenchymal shift in qGBM cells of both proneural and mesenchymal GBM subtypes. Bioinformatic analyses and functional assays in GBM organoids established hypoxia and TGFβ signaling as potential niche factors that promote quiescence in GBM. Finally, network co-expression analysis of TCGA glioma patient data identified gene modules that are enriched for qGBM signatures and also associated with survival rate. Interpretation Our in vitro study in 3D GBM organoids supports the presence of a quiescent cell population that displays self-renewal capacity, high therapy resistance, and mesenchymal gene signatures. It also sheds light on how GBM cells may acquire and maintain quiescence through ECM organization and interaction with niche factors such as TGFβ and hypoxia. Our findings provide a starting point for developing strategies to tackle the quiescent population of GBM. Fund National Institutes of Health (NIH) and Deutsche Forschungsgemeinschaft (DFG).
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Affiliation(s)
- Rut Tejero
- Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yong Huang
- Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Igor Katsyv
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Michael Kluge
- Institut für Informatik, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jung-Yi Lin
- Tisch Cancer Institute, Biostatistics Shared Resource Facility, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jessica Tome-Garcia
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nicolas Daviaud
- Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yuanshuo Wang
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nadejda M Tsankova
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Caroline C Friedel
- Institut für Informatik, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Hongyan Zou
- Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Roland H Friedel
- Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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13
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Jiao X, Li Z, Wang M, Katiyar S, Di Sante G, Farshchian M, South AP, Cocola C, Colombo D, Reinbold R, Zucchi I, Wu K, Tabas I, Spike BT, Pestell RG. Dachshund Depletion Disrupts Mammary Gland Development and Diverts the Composition of the Mammary Gland Progenitor Pool. Stem Cell Reports 2018; 12:135-151. [PMID: 30554919 PMCID: PMC6335505 DOI: 10.1016/j.stemcr.2018.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 11/14/2018] [Accepted: 11/14/2018] [Indexed: 12/31/2022] Open
Abstract
DACH1 abundance is reduced in human malignancies, including breast cancer. Herein DACH1 was detected among multipotent fetal mammary stem cells in the embryo, among mixed lineage precursors, and in adult basal cells and (ERα+) luminal progenitors. Dach1 gene deletion at 6 weeks in transgenic mice reduced ductal branching, reduced the proportion of mammary basal cells (Lin− CD24med CD29high) and reduced abundance of basal cytokeratin 5, whereas DACH1 overexpression induced ductal branching, increased Gata3 and Notch1, and expanded mammosphere formation in LA-7 breast cells. Mammary gland-transforming growth factor β (TGF-β) activity, known to reduce ductal branching and to reduce the basal cell population, increased upon Dach1 deletion, associated with increased SMAD phosphorylation. Association of the scaffold protein Smad anchor for receptor activation with Smad2/3, which facilitates TGF-β activation, was reduced by endogenous DACH1. DACH1 increases basal cells, enhances ductal formation and restrains TGF-β activity in vivo. Dach1 is expressed in mammary gland fetal stem cells and adult luminal cells Dach1 expands mammary gland basal/myoepithelial cells Dach1 induces post-natal mammary gland ductal formation Dach1 retrains TGF-β activity in the mammary gland in vivo
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Affiliation(s)
- Xuanmao Jiao
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, PA 18902, USA
| | - Zhiping Li
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, PA 18902, USA
| | - Min Wang
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, PA 18902, USA
| | - Sanjay Katiyar
- Department of Cancer Biology, Thomas Jefferson University, Bluemle Life Sciences Building, 233 South 10(th) Street, Philadelphia, PA 19107, USA
| | - Gabriele Di Sante
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, PA 18902, USA
| | - Mehdi Farshchian
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Bluemle Life Sciences Building, 233 South 10(th) Street, Philadelphia, PA 19107, USA
| | - Andrew P South
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Bluemle Life Sciences Building, 233 South 10(th) Street, Philadelphia, PA 19107, USA
| | - Cinzia Cocola
- Istituto Tecnologie Biomediche, Consiglio Nazionale Delle Ricerche, Via Cervi 93, Segrate, 20090 Milano, Italy
| | - Daniele Colombo
- Istituto Tecnologie Biomediche, Consiglio Nazionale Delle Ricerche, Via Cervi 93, Segrate, 20090 Milano, Italy
| | - Rolland Reinbold
- Istituto Tecnologie Biomediche, Consiglio Nazionale Delle Ricerche, Via Cervi 93, Segrate, 20090 Milano, Italy
| | - Ileana Zucchi
- Istituto Tecnologie Biomediche, Consiglio Nazionale Delle Ricerche, Via Cervi 93, Segrate, 20090 Milano, Italy
| | - Kongming Wu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Ira Tabas
- Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Benjamin T Spike
- Huntsman Cancer Institute, Department of Oncological Sciences, University of Utah, 2000 Circle of Hope, Room 2505, Salt Lake City, UT 84112, USA
| | - Richard G Pestell
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, PA 18902, USA; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 637551, Singapore.
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14
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Jun EJ, Song HY, Park JH, Bae YS, Paulson B, Lee S, Cho YC, Tsauo J, Kim MT, Kim KY, Yang SG, Kim JK. In Vivo Fluorescence Microendoscopic Monitoring of Stent-Induced Fibroblast Cell Proliferation in an Esophageal Mouse Model. J Vasc Interv Radiol 2018; 29:1756-1763. [PMID: 30266211 DOI: 10.1016/j.jvir.2018.06.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 06/25/2018] [Accepted: 06/29/2018] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To evaluate the feasibility of self-expanding metal stent (SEMS) placement and fluorescence microendoscopic monitoring for determination of fibroblast cell proliferation after stent placement in an esophageal mouse model. MATERIALS AND METHODS Twenty fibroblast-specific protein (FSP)-1 green fluorescent protein (GFP) transgenic mice were analyzed. Ten mice (Group A) underwent SEMS placement, and fluoroscopic and fluorescence microendoscopic images were obtained biweekly until 8 weeks thereafter. Ten healthy mice (Group B) were used for control esophageal values. RESULTS SEMS placement was technically successful in all mice. The relative average number of fibroblast GFP cells and the intensities of GFP signals in Group A were significantly higher than in Group B after stent placement. The proliferative cellular response, including granulation tissue, epithelial layer, submucosal fibrosis, and connective tissue, was increased in Group A. FSP-1-positive cells were more prominent in Group A than in Group B. CONCLUSIONS SEMS placement was feasible and safe in an esophageal mouse model, and proliferative cellular response caused by fibroblast cell proliferation after stent placement was longitudinally monitored using a noninvasive fluorescence microendoscopic technique. The results have implications for the understanding of proliferative cellular response after stent placement in real-life patients and provide initial insights into new clinical therapeutic strategies for restenosis.
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Affiliation(s)
- Eun Jung Jun
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Ho-Young Song
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Jung-Hoon Park
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea; Department of Biomedical Engineering Research Center, and Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Yoon Sung Bae
- Department of Biomedical Engineering Research Center, and Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Bjorn Paulson
- Department of Biomedical Engineering Research Center, and Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea; Department of Physics, College of Science, Yonsei University, Seoul, Republic of Korea
| | - Sanghwa Lee
- Department of Biomedical Engineering Research Center, and Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Young Chul Cho
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Jiaywei Tsauo
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Min Tae Kim
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Kun Yung Kim
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea
| | - Su-Geun Yang
- Department of New Drug Development and NCEED, School of Medicine, Inha University, Incheon, Republic of Korea
| | - Jun Ki Kim
- Department of Biomedical Engineering Research Center, and Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olymic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea.
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15
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Fici P, Gallerani G, Morel AP, Mercatali L, Ibrahim T, Scarpi E, Amadori D, Puisieux A, Rigaud M, Fabbri F. Splicing factor ratio as an index of epithelial-mesenchymal transition and tumor aggressiveness in breast cancer. Oncotarget 2018; 8:2423-2436. [PMID: 27911856 PMCID: PMC5356812 DOI: 10.18632/oncotarget.13682] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 11/21/2016] [Indexed: 12/18/2022] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) has been shown to be associated with tumor progression and metastasis. During this process in breast cancer, a crucial role is played by alternative splicing systems. To identify a new early prognostic marker of metastasis, we evaluated EMT-related gene expression in breast cell lines, and in primary tumor tissue from 31 patients with early breast cancer, focusing our attention on EMT-related splicing factors ESRP1, ESRP2 and RBFOX2. Results showed that the expression patterns of these genes were indicative of the onset of EMT in in-vitro models, but not in tissue samples. However, the ratio between ESRP1 or ESRP2 and RBFOX2 significantly decreased during EMT and positively correlated with the EMT-specific phenotype in cell models, representing a promising prognostic markers. Low ESRP1/RBFOX2 ratio value was associated with a higher risk of metastasis (p < 0.005) in early breast cancer patients, regardless other clinical features. A cut-off of ratio of 1.067 was determined by ROC curve analysis (AUC 0.8375; 95% CI 0.6963-0.9787). Our study show evidence that a decrease in this ratio correlates with cancer progression. The results provide a rationale for using ESRP1/RBFOX2 ratio as a new prognostic biomarker for the early prediction of metastatic potential in breast cancer.
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Affiliation(s)
- Pietro Fici
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola (FC), Italy
| | - Giulia Gallerani
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola (FC), Italy
| | - Anne-Pierre Morel
- Inserm UMR-S1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France.,Centre Léon Bérard, Lyon, France.,UNIV UMR1052, Lyon, France.,Université de Lyon, Lyon, France
| | - Laura Mercatali
- Osteoncology and Rare Tumors Center, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Toni Ibrahim
- Osteoncology and Rare Tumors Center, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Emanuela Scarpi
- Unit of Biostatistics and Clinical Trials, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, FC, Italy
| | - Dino Amadori
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, FC, Italy
| | - Alain Puisieux
- Inserm UMR-S1052, Centre de Recherche en Cancérologie de Lyon, Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France.,Centre Léon Bérard, Lyon, France.,UNIV UMR1052, Lyon, France.,Université de Lyon, Lyon, France.,Institut Universitaire de France, Paris, France
| | - Michel Rigaud
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola (FC), Italy
| | - Francesco Fabbri
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola (FC), Italy
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16
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Wang Y, Liu X, Zheng H, Wang Q, An L, Wei G. Suppression of CUL4A attenuates TGF-β1-induced epithelial-to-mesenchymal transition in breast cancer cells. Int J Mol Med 2017; 40:1114-1124. [PMID: 28902348 PMCID: PMC5593474 DOI: 10.3892/ijmm.2017.3118] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 07/21/2017] [Indexed: 01/28/2023] Open
Abstract
Transforming growth factor-β1 (TGF-β1) plays a vital role in the process of epithelial-to-mesenchymal transition (EMT) in breast cancer and the cullin 4A (CUL4A) gene is overexpressed in primary breast cancer. However, whether TGF-β1 signaling can induce CUL4A expression has not been investigated to date, at least to the best of our knowledge. In this study, using breast cancer cell lines, we found that the CUL4A expression level was increased following EMT induced by TGF-β1. Silencing CUL4A expression or CUL4A inhibition by thalidomide suppressed the EMT process induced by TGF-β1. We also found that CUL4A was associated with the expression of zinc finger E-box-binding homeobox 1 (ZEB1) which was induced by TGF-β1. These results suggest that CUL4A is upregulated in TGF-β1-induced EMT, and has a regulatory function in this process. The identification of CUL4A as a downstream target of TGF-β1 represents a critical pro-survival mechanism in breast cancer progression and provides another point for therapeutic intervention in breast cancer.
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Affiliation(s)
- Yunshan Wang
- Department of Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, Shandong 250012,Department of International Biotechnology R&D Center, Shandong University School of Ocean, Weihai, Shandong 264209
| | - Xiaoyan Liu
- Department of Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, Shandong 250012
| | - Hui Zheng
- Department of Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, Shandong 250012
| | - Qin Wang
- Department of Anesthesiology, Qilu Hospital, Shandong University, Jinan, Shandong 250012
| | - Li An
- Department of Science and Education, Taian Maternal and Child Health-Care Hospital, Taian, Shandong 271000, P.R. China
| | - Guangwei Wei
- Department of Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, Shandong 250012,Correspondence to: Professor Guangwei Wei, Department of Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, 44 Wenhua Xi Road, Jinan, Shandong 250012, P.R. China, E-mail:
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17
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Jun EJ, Park JH, Tsauo J, Yang SG, Kim DK, Kim KY, Kim MT, Yoon SH, Lim YJ, Song HY. EW-7197, an activin-like kinase 5 inhibitor, suppresses granulation tissue after stent placement in rat esophagus. Gastrointest Endosc 2017; 86:219-228. [PMID: 28137596 DOI: 10.1016/j.gie.2017.01.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 01/10/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Self-expanding metallic stent (SEMS) placement is a well-established method for treating malignant esophageal strictures; however, this procedure has not gained widespread acceptance for treating benign esophageal strictures because of granulation tissue formation. The aim of the present study was to investigate whether EW-7197, a novel per-oral transforming growth factor-β type I receptor kinase inhibitor, suppressed granulation tissue formation after SEMS placement in the rat esophagus. METHODS Sixty rats underwent SEMS placement and were randomly divided into 4 groups. Group A (n = 20) received vehicle-treated control for 4 weeks. Group B (n = 20) received 20 mg/kg/day EW-7197 for 4 weeks. Group C (n = 10) received 20 mg/kg/day EW-7197 for 4 weeks followed by vehicle-treated control for 4 weeks. Group D (n = 10) received 20 mg/kg/day EW-7197 for 8 weeks. RESULTS SEMS placement was technically successful in all rats. Eleven rats, however, were excluded because of stent migration (n = 9) and procedure-related death (n = 2). The luminal diameter in group A was significantly smaller than those in groups B, C, and D (all P < .001). The percentage of granulation tissue area, number of epithelial layers, thickness of submucosal fibrosis, percentage of connective tissue area, and degree of collagen deposition were significantly higher in group A than in groups B, C, and D (all P < .001); however, there were no significant differences among groups B, C, and D. EW-7197 decreased the expression levels of phospho-Smad 3, N-cadherin, fibronectin, α-smooth muscle actin, and transforming growth factor-β1 and increased the expression level of E-cadherin (all P < .01). CONCLUSIONS EW-7197 suppressed granulation tissue formation after SEMS placement in the rat esophagus.
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Affiliation(s)
- Eun Jung Jun
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jung-Hoon Park
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Biomedical Engineering Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jiaywei Tsauo
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Su-Geun Yang
- Department of New Drug Development and NCEED, School of Medicine, Inha University, Incheon, Republic of Korea
| | - Dae-Kee Kim
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Women's University, Seoul, Republic of Korea
| | - Kun Yung Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Min Tae Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sung-Hwan Yoon
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young Je Lim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ho-Young Song
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Nikitorowicz-Buniak J, Denton CP, Abraham D, Stratton R. Partially Evoked Epithelial-Mesenchymal Transition (EMT) Is Associated with Increased TGFβ Signaling within Lesional Scleroderma Skin. PLoS One 2015. [PMID: 26217927 PMCID: PMC4517793 DOI: 10.1371/journal.pone.0134092] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The origin of myofibroblasts in fibrotic conditions remains unknown and in systemic sclerosis (SSc) it has been proposed that activation of local fibroblasts, trans-differentiation of perivascular or vascular cells, recruitment of fibrocyte progenitors, or epithelial to mesenchymal transition (EMT) could be contributing. Data from our laboratory indicate that the epidermis in scleroderma is activated with the keratinocytes exhibiting a phenotype normally associated with tissue repair, including phosphorylation profiles indicative of TGFβ signaling. Since TGFβ is a known inducer of EMT, we investigated if there is evidence of this process in the SSc epidermis. In order to validate antibodies and primers, EMT was modeled in HaCaT cells cultured in the presence of TGFβ1. Skin sections were stained with phosho-SMAD2/3, as well as with epithelial and mesenchymal markers. Moreover, mRNA levels of transcription factors associated with EMT were studied in epidermal blister sheets. We observed critical changes in the scleroderma epidermis; showing significantly increased nuclear translocation of phosphorylated Smad2/3, consistent with active TGFβ signaling in SSc keratinocytes. While profound EMT could be induced in keratinocytes in vitro with the appearance of SNAI1/2 and FSP-1, and an accompanying loss of E-cadherin, in the scleroderma skin active TGFβ signaling was accompanied by only partial EMT-like changes characterised by induction of SNAI1 alone and with no loss of E-cadherin. Together, our findings support a model of altered differentiation and TGFβ dependent activation of scleroderma epithelial cells leading to a partially evoked EMT like process in the fibrotic skin.
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Affiliation(s)
- Joanna Nikitorowicz-Buniak
- Centre for Rheumatology and Connective Tissue Diseases, Research Department of Inflammation, Division of Medicine, UCL-Medical School, Rowland Hill Street, London, NW3 2PF, United Kingdom
| | - Christopher P. Denton
- Centre for Rheumatology and Connective Tissue Diseases, Research Department of Inflammation, Division of Medicine, UCL-Medical School, Rowland Hill Street, London, NW3 2PF, United Kingdom
| | - David Abraham
- Centre for Rheumatology and Connective Tissue Diseases, Research Department of Inflammation, Division of Medicine, UCL-Medical School, Rowland Hill Street, London, NW3 2PF, United Kingdom
| | - Richard Stratton
- Centre for Rheumatology and Connective Tissue Diseases, Research Department of Inflammation, Division of Medicine, UCL-Medical School, Rowland Hill Street, London, NW3 2PF, United Kingdom
- * E-mail:
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Xiao L, Zhou X, Liu F, Hu C, Zhu X, Luo Y, Wang M, Xu X, Yang S, Kanwar YS, Sun L. MicroRNA-129-5p modulates epithelial-to-mesenchymal transition by targeting SIP1 and SOX4 during peritoneal dialysis. J Transl Med 2015; 95:817-832. [PMID: 25961171 PMCID: PMC4863710 DOI: 10.1038/labinvest.2015.57] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 02/09/2015] [Accepted: 03/18/2015] [Indexed: 12/16/2022] Open
Abstract
Peritoneal dialysis (PD) is the most readily feasible home-dialysis method for renal replacement therapy. However, repeated use of PD can lead to induction of mesothelial/epithelial-mesenchymal transition (MMT/EMT) and fibrosis, eventually leading to ultrafiltration failure and discontinuation of PD. MicroRNA-129-5p (miR-129-5p) is believed to be a potent downstream inhibitor of TGF-β1 in renal fibrosis, but the effect of miR-129-5p on MMT/EMT relevant to PD is unknown. In this study, as determined by microRNA array analysis and confirmed by northern blot analysis and real-time PCR, we demonstrate that miRNA-129-5p is decreased in mesothelial cells isolated from effluent of patients having PD for more than 6 months extending to several years compared with those who have undergone PD for less than 6 months. The decreased expression of miR-129-5p was accompanied with alterations in EMT-related genes and the expression of respective proteins in vivo. In addition, in in vitro studies we noted that the expression of E-cadherin and claudin-1 were significantly reduced with increased cell migration in HMrSV5, a human peritoneal mesothelial cell line (HPMC), treated with TGF-β1, whereas expression of vimentin, fibronectin and transcription factors SIP1 and SOX4 increased significantly, as assessed by real-time PCR, western blot analysis and immunofluorescence microscopy. Furthermore, alteration in EMT-related genes and proteins were reversed by overexpression of miR-129-5p. No effect was observed in cells treated with miR-negative control. Meanwhile, inhibition of SIP1 and SOX4 with their respective siRNA also could decrease the expression of EMT-related genes and protein levels in HPMCs induced with TGF-β1. Finally, we demonstrate that SIP1 can inhibit the promoter activity of E-cadherin while enhancing the promoter activity of vimentin. We also observed that miR-129-5p could directly target the 3'UTR of SIP1 and SOX4 genes, and repressed their post-transcriptional activities. These data suggest that there is a novel TGF-β1/miR-129-5p/SIP-1 or SOX4 pathway that has a significant role in MMT and fibrosis in the setting of PD.
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Affiliation(s)
- Li Xiao
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xun Zhou
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fuyou Liu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chun Hu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuejing Zhu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ying Luo
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ming Wang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoxuan Xu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shikun Yang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yashpal S Kanwar
- Departments of Pathology and Medicine, Northwestern University, Chicago, IL, USA
| | - Lin Sun
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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HPV-16 E6/E7 promotes cell migration and invasion in cervical cancer via regulating cadherin switch in vitro and in vivo. Arch Gynecol Obstet 2015; 292:1345-54. [PMID: 26093522 DOI: 10.1007/s00404-015-3787-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 06/08/2015] [Indexed: 01/06/2023]
Abstract
PURPOSE Cadherin switch, as a key hallmark of epithelial-mesenchymal transition (EMT), is characterized by reduced E-cadherin expression and increased N-cadherin or P-cadherin expression, and has been implicated in many aggressive tumors, but the importance and regulatory mechanism of cadherin switch in cervical cancer have not been investigated. Our study aimed to explore the role of cadherin switch by regulation of HPV-16 E6/E7 in progression and metastasis of cervical cancer. METHODS The expressions of E-cadherin and P-cadherin were examined by immunohistochemical staining in 40 cases of high-grade cervical lesions with HPV-16 infection only in which HPV-16 E6 and E7 expression had been detected using qRT-PCR method. Through modulating E6 and E7 expression using HPV-16 E6/E7 promoter-targeting siRNAs or expressed vector in vitro, cell growth, migration, and invasion were separately tested by MTT, wound-healing and transwell invasion assays, as well as the expressions of these cadherins by western blot analyses. Finally, the expressions of these cadherins in cancerous tissues of BALB/c-nu mouse model inoculated with the stable HPV-16 E6/E7 gene silencing Siha and Caski cells were also measured by immunohistochemical staining. RESULTS Pearson correlation coefficient analyses showed the strongly inverse correlation of E-cadherin expression and strongly positive correlation of P-cadherin expression with E6/E7 level in 40 cases of high-grade cervical lesions. Furthermore, the modulation of HPV-16 E6/E7 expression remarkably influenced cell proliferation, migration, and invasion, as well as the protein levels of E-cadherin and P-cadherin in cervical cell lines. Finally, the reduction of HPV-16 E6/E7 expression led to up-regulated expression of E-cadherin and down-regulated expression of P-cadherin in BALB/c-nu mouse model in vivo assay. CONCLUSIONS Our results unraveled the possibility that HPV-16 E6/E7 could promote cell invasive potential via regulating cadherin switching, and consequently contribute to progression and metastasis of cervical cancer.
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21
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The role of adipose-derived stem cells in breast cancer progression and metastasis. Stem Cells Int 2015; 2015:120949. [PMID: 26000019 PMCID: PMC4427098 DOI: 10.1155/2015/120949] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/26/2014] [Indexed: 12/15/2022] Open
Abstract
Conventional breast cancer extirpation involves resection of parts of or the whole gland, resulting in asymmetry and disfiguration. Given the unsatisfactory aesthetic outcomes, patients often desire postmastectomy reconstructive procedures. Autologous fat grafting has been proposed for reconstructive purposes for decades to restore form and anatomy after mastectomy. Fat has the inherent advantage of being autologous tissue and the most natural-appearing filler, but given its inconsistent engraftment and retention rates, it lacks reliability. Implementation of autologous fat grafts with cellular adjuncts, such as multipotent adipose-derived stem cells (ADSCs), has shown promising results. However, it is pertinent and critical to question whether these cells could promote any residual tumor cells to proliferate, differentiate, or metastasize or even induce de novo carcinogenesis. Thus far, preclinical and clinical study findings are discordant. A trend towards potential promotion of both breast cancer growth and invasion by ADSCs found in basic science studies was indeed not confirmed in clinical trials. Whether experimental findings eventually correlate with or will be predictive of clinical outcomes remains unclear. Herein, we aimed to concisely review current experimental findings on the interaction of mesenchymal stem cells and breast cancer, mainly focusing on ADSCs as a promising tool for regenerative medicine, and discuss the implications in clinical translation.
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22
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Zhang Z, Yang C, Gao W, Chen T, Qian T, Hu J, Tan Y. FOXA2 attenuates the epithelial to mesenchymal transition by regulating the transcription of E-cadherin and ZEB2 in human breast cancer. Cancer Lett 2015; 361:240-50. [PMID: 25779673 DOI: 10.1016/j.canlet.2015.03.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 03/09/2015] [Accepted: 03/09/2015] [Indexed: 01/04/2023]
Abstract
The Forkhead Box A2 (FOXA2) transcription factor is required for embryonic development and for normal functions of multiple adult tissues, in which the maintained expression of FOXA2 is usually related to preventing the progression of malignant transformation. In this study, we found that FOXA2 prevented the epithelial to mesenchymal transition (EMT) in human breast cancer. We observed a strong correlation between the expression levels of FOXA2 and the epithelial phenotype. Knockdown of FOXA2 promoted the mesenchymal phenotype, whereas stable overexpression of FOXA2 attenuated EMT in breast cancer cells. FOXA2 was found to endogenously bind to and stimulate the promoter of E-cadherin that is crucial for epithelial phenotype of the tumor cells. Meanwhile, FOXA2 prevented EMT of breast cancer cells by repressing the expression of EMT-related transcription factor ZEB2 through recruiting a transcriptional corepressor TLE3 to the ZEB2 promoter. The stable overexpression of FOXA2 abolished metastasis of breast cancer cells in vivo. This study confirmed that FOXA2 inhibited EMT in breast cancer cells by regulating the transcription of EMT-related genes such as E-cadherin and ZEB2.
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Affiliation(s)
- Zhen Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Chao Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Wei Gao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Tuanhui Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Tingting Qian
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China
| | - Jun Hu
- Department of Pathology, Hunan Provincial Tumor Hospital, Changsha, Hunan 410013, China
| | - Yongjun Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, Hunan 410082, China.
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23
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Suppression of DACH1 promotes migration and invasion of colorectal cancer via activating TGF-β-mediated epithelial-mesenchymal transition. Biochem Biophys Res Commun 2015; 460:314-9. [PMID: 25778865 DOI: 10.1016/j.bbrc.2015.03.032] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 03/07/2015] [Indexed: 01/24/2023]
Abstract
DACH1 has been found down-regulated in a variety of human cancers, but its clinical significance and functional roles in colorectal cancer (CRC) remain unknown. In this study, we identified DACH1 as a tumor suppressor in CRC. Suppression of DACH1 strikingly increased cell growth, migration and invasion potential of CRC cell line SW480. Expression analysis of a set of epithelial-mesenchymal transition (EMT) markers by RT-qPCR and western blot showed an increase in the expression of mesenchymal markers (vimentin and N-cadherin) and a reduction in the expression of epithelial marker (E-cadherin and γ-catenin). Furthermore, EMT characteristics in DACH1-downregulated CRC cells were abrogated by TGF-β inhibitor SB431542. DACH1 overexpression reduced TGF-β-induced EMT and inhibited SW480 cell invasion which can be reversed in the presence of TGF-β. Thus, our results suggest that DACH1 loss of function results in increased cell growth, motility and invasiveness through TGF-β-mediated EMT, and DACH1 loss of function has important therapeutic implications for targeted therapies of CRC.
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24
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Lindley LE, Curtis KM, Sanchez-Mejias A, Rieger ME, Robbins DJ, Briegel KJ. The WNT-controlled transcriptional regulator LBH is required for mammary stem cell expansion and maintenance of the basal lineage. Development 2015; 142:893-904. [PMID: 25655704 DOI: 10.1242/dev.110403] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The identification of multipotent mammary stem cells (MaSCs) has provided an explanation for the unique regenerative capacity of the mammary gland throughout adult life. However, it remains unclear what genes maintain MaSCs and control their specification into the two epithelial lineages: luminal and basal. LBH is a novel transcription co-factor in the WNT pathway with hitherto unknown physiological function. LBH is expressed during mammary gland development and aberrantly overexpressed in aggressive 'basal' subtype breast cancers. Here, we have explored the in vivo role of LBH in mammopoiesis. We show that in postnatal mammary epithelia, LBH is predominantly expressed in the Lin(-)CD29(high)CD24(+) basal MaSC population. Upon conditional inactivation of LBH, mice exhibit pronounced delays in mammary tissue expansion during puberty and pregnancy, accompanied by increased luminal differentiation at the expense of basal lineage specification. These defects could be traced to a severe reduction in the frequency and self-renewal/differentiation potential of basal MaSCs. Mechanistically, LBH induces expression of key epithelial stem cell transcription factor ΔNp63 to promote a basal MaSC state and repress luminal differentiation genes, mainly that encoding estrogen receptor α (Esr1/ERα). Collectively, these studies identify LBH as an essential regulator of basal MaSC expansion/maintenance, raising important implications for its potential role in breast cancer pathogenesis.
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Affiliation(s)
- Linsey E Lindley
- Department of Biochemistry and Molecular Biology, Braman Family Breast Cancer Institute, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Kevin M Curtis
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine and Bruce W. Carter Veterans Affairs Medical Center, Miami, FL 33136, USA
| | - Avencia Sanchez-Mejias
- Department of Surgery, Molecular Therapeutics Program, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Megan E Rieger
- Department of Biochemistry and Molecular Biology, Braman Family Breast Cancer Institute, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - David J Robbins
- Department of Surgery, Molecular Therapeutics Program, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Karoline J Briegel
- Department of Biochemistry and Molecular Biology, Braman Family Breast Cancer Institute, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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Evaluation of aldehyde dehydrogenase 1 and transcription factors in both primary breast cancer and axillary lymph node metastases as a prognostic factor. Breast Cancer 2015; 23:437-44. [DOI: 10.1007/s12282-015-0583-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 12/26/2014] [Indexed: 01/05/2023]
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26
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Barriere G, Fici P, Gallerani G, Fabbri F, Zoli W, Rigaud M. Circulating tumor cells and epithelial, mesenchymal and stemness markers: characterization of cell subpopulations. ANNALS OF TRANSLATIONAL MEDICINE 2014; 2:109. [PMID: 25489583 DOI: 10.3978/j.issn.2305-5839.2014.10.04] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 09/30/2014] [Indexed: 01/01/2023]
Abstract
Until now detection and numeration of circulating tumor cells (CTCs) were essentially used as a prognostic factor in cancer progression. To extend the role of these kinds of analysis, it seems necessary to improve analytical methods related to isolation and characterization of CTCs. Discrepancies between published results corroborates this requirement. In this review we suggest a combination of markers able to reach the goal. Moreover to improve the clinical utility of CTC analysis, particularly in the therapeutic follow up of the disease, epithelial mesenchymal transition (EMT) level of a global CTC population should be studied.
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Affiliation(s)
- Guislaine Barriere
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via Piero Maroncelli 40, 47014 Meldola, FC, Italy
| | - Pietro Fici
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via Piero Maroncelli 40, 47014 Meldola, FC, Italy
| | - Giulia Gallerani
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via Piero Maroncelli 40, 47014 Meldola, FC, Italy
| | - Francesco Fabbri
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via Piero Maroncelli 40, 47014 Meldola, FC, Italy
| | - Wainer Zoli
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via Piero Maroncelli 40, 47014 Meldola, FC, Italy
| | - Michel Rigaud
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via Piero Maroncelli 40, 47014 Meldola, FC, Italy
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Overexpression of zinc finger E-box binding homeobox factor 1 promotes tumor invasiveness and confers unfavorable prognosis in esophageal squamous cell carcinoma. Tumour Biol 2014; 35:11977-84. [DOI: 10.1007/s13277-014-2494-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 08/13/2014] [Indexed: 01/09/2023] Open
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Prognostic significance of epithelial-mesenchymal transition-related markers in extrahepatic cholangiocarcinoma: comprehensive immunohistochemical study using a tissue microarray. Br J Cancer 2014; 111:1363-72. [PMID: 25077440 PMCID: PMC4183847 DOI: 10.1038/bjc.2014.415] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 06/25/2014] [Accepted: 07/01/2014] [Indexed: 01/03/2023] Open
Abstract
Background: Epithelial–mesenchymal transition (EMT) is characterised by the loss of cell-to-cell adhesion and gaining of mesenchymal phenotypes. Epithelial–mesenchymal transition is proposed to occur in various developmental processes and cancer progression. ‘Cadherin switch', a process in which cells shift to express different isoforms of the cadherin transmembrane protein and usually refers to a switch from the expression of E-cadherin to N-cadherin, is one aspect of EMT and can have a profound effect on tumour invasion/metastasis. The aim of this study was to investigate the clinicopathological significance of EMT-related proteins and cadherin switch in extrahepatic cholangiocarcinoma (EHCC). Methods: We investigated the association between altered expression of 12 EMT-related proteins and clinical outcomes in patients with EHCC (n=117) using immunohistochemistry on tissue microarrays. Results: Univariate and multivariate analyses revealed that, in addition to N classification (P=0.0420), the expression of E-cadherin (P=0.0208), N-cadherin (P=0.0038) and S100A4 (P=0.0157) was each an independent and a significant prognostic factor. We also demonstrated that cadherin switch was independently associated with poor prognosis (P=0.0143) in patients with EHCC. Conclusions: These results may provide novel information for selection of patients with EHCC who require adjuvant therapy and strict surveillance.
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Sheen YY, Kim MJ, Park SA, Park SY, Nam JS. Targeting the Transforming Growth Factor-β Signaling in Cancer Therapy. Biomol Ther (Seoul) 2014; 21:323-31. [PMID: 24244818 PMCID: PMC3825194 DOI: 10.4062/biomolther.2013.072] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 09/24/2013] [Indexed: 12/21/2022] Open
Abstract
TGF-β pathway is being extensively evaluated as a potential therapeutic target. The transforming growth factor-β (TGF-β) signaling pathway has the dual role in both tumor suppression and tumor promotion. To design cancer therapeutics successfully, it is important to understand TGF-β related functional contexts. This review discusses the molecular mechanism of the TGF-β pathway and describes the different ways of tumor suppression and promotion by TGF-β. In the last part of the review, the data on targeting TGF-β pathway for cancer treatment is assessed. The TGF-β inhibitors in pre-clinical studies, and Phase I and II clinical trials are updated.
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Son JY, Park SY, Kim SJ, Lee SJ, Park SA, Kim MJ, Kim SW, Kim DK, Nam JS, Sheen YY. EW-7197, a novel ALK-5 kinase inhibitor, potently inhibits breast to lung metastasis. Mol Cancer Ther 2014; 13:1704-16. [PMID: 24817629 DOI: 10.1158/1535-7163.mct-13-0903] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Advanced tumors produce an excessive amount of transforming growth factor β (TGFβ), which promotes tumor progression at late stages of malignancy. The purpose of this study was to develop anti-TGFβ therapeutics for cancer. We synthesized a novel small-molecule TGFβ receptor I kinase (activin receptor-like kinase 5) inhibitor termed N-[[4-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-5-(6-methylpyridin-2-yl)-1H-imidazol-2-yl]methyl]-2-fluoroaniline (EW-7197), and we investigated its potential antimetastatic efficacy in mouse mammary tumor virus (MMTV)/c-Neu mice and 4T1 orthotopic-grafted mice. EW-7197 inhibited Smad/TGFβ signaling, cell migration, invasion, and lung metastasis in MMTV/c-Neu mice and 4T1 orthotopic-grafted mice. EW-7197 also inhibited the epithelial-to-mesenchymal transition (EMT) in both TGFβ-treated breast cancer cells and 4T1 orthotopic-grafted mice. Furthermore, EW-7197 enhanced cytotoxic T lymphocyte activity in 4T1 orthotopic-grafted mice and increased the survival time of 4T1-Luc and 4T1 breast tumor-bearing mice. In summary, EW-7197 showed potent in vivo antimetastatic activity, indicating its potential for use as an anticancer therapy.
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Affiliation(s)
- Ji Yeon Son
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
| | - So-Yeon Park
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
| | - Sol-Ji Kim
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
| | - Seon Joo Lee
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
| | - Sang-A Park
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
| | - Min-Jin Kim
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
| | - Seung Won Kim
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
| | - Dae-Kee Kim
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
| | - Jeong-Seok Nam
- Laboratory of Tumor Suppressor, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, South Korea
| | - Yhun Yhong Sheen
- Authors' Affiliations: College of Pharmacy, Ewha Womans University, Seodaemun-gu, Seoul; and
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Li H, Li M, Xu D, Zhao C, Liu G, Wang F. Overexpression of Snail in retinal pigment epithelial triggered epithelial-mesenchymal transition. Biochem Biophys Res Commun 2014; 446:347-51. [PMID: 24607896 DOI: 10.1016/j.bbrc.2014.02.119] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 02/25/2014] [Indexed: 01/18/2023]
Abstract
Snail transcription factor has been implicated as an important regulator in epithelial-mesenchymal transition (EMT) during tumourigenesis and fibrogenesis. Our previous work showed that Snail transcription factor was activated in transforming growth factor β1 (TGF-β1) induced EMT in retinal pigment epithelial (RPE) cells and may contribute to the development of retinal fibrotic disease such as proliferative vitreoretinopathy (PVR). However, whether Snail alone has a direct role on retinal pigment epithelial-mesenchymal transition has not been investigated. Here, we analyzed the capacity of Snail to drive EMT in human RPE cells. A vector encoding Snail gene or an empty vector were transfected into human RPE cell lines ARPE-19 respectively. Snail overexpression in ARPE-19 cells resulted in EMT, which was characterized by the expected phenotypic transition from a typical epithelial morphology to mesenchymal spindle-shaped. The expression of epithelial markers E-cadherin and Zona occludin-1 (ZO-1) were down-regulated, whereas mesenchymal markers a-smooth muscle actin (a-SMA) and fibronectin were up-regulated in Snail expression vector transfected cells. In addition, ectopic expression of Snail significantly enhanced ARPE-19 cell motility and migration. The present data suggest that overexpression of Snail in ARPE-19 cells could directly trigger EMT. These results may provide novel insight into understanding the regulator role of Snail in the development of retinal pigment epithelial-mesenchymal transition.
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Affiliation(s)
- Hui Li
- Department of Ophthalmology, Shanghai Tenth People's Hospital, Affiliate of Tongji University, Shanghai 200072, PR China
| | - Min Li
- Department of Ophthalmology, Shanghai Tenth People's Hospital, Affiliate of Tongji University, Shanghai 200072, PR China
| | - Ding Xu
- Department of Ophthalmology, Shanghai Tenth People's Hospital, Affiliate of Tongji University, Shanghai 200072, PR China
| | - Chun Zhao
- Department of Ophthalmology, Shanghai Tenth People's Hospital, Affiliate of Tongji University, Shanghai 200072, PR China
| | - Guodong Liu
- Department of Ophthalmology, Shanghai Tenth People's Hospital, Affiliate of Tongji University, Shanghai 200072, PR China
| | - Fang Wang
- Department of Ophthalmology, Shanghai Tenth People's Hospital, Affiliate of Tongji University, Shanghai 200072, PR China.
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Mandel K, Yang Y, Schambach A, Glage S, Otte A, Hass R. Mesenchymal stem cells directly interact with breast cancer cells and promote tumor cell growth in vitro and in vivo. Stem Cells Dev 2013; 22:3114-27. [PMID: 23895436 DOI: 10.1089/scd.2013.0249] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cellular interactions were investigated between human mesenchymal stem cells (MSC) and human breast cancer cells. Co-culture of the two cell populations was associated with an MSC-mediated growth stimulation of MDA-MB-231 breast cancer cells. A continuous expansion of tumor cell colonies was progressively surrounded by MSC(GFP) displaying elongated cell bodies. Moreover, some MSC(GFP) and MDA-MB-231(cherry) cells spontaneously generated hybrid/chimeric cell populations, demonstrating a dual (green fluorescent protein+cherry) fluorescence. During a co-culture of 5-6 days, MSC also induced expression of the GPI-anchored CD90 molecule in breast cancer cells, which could not be observed in a transwell assay, suggesting the requirement of direct cellular interactions. Indeed, MSC-mediated CD90 induction in the breast cancer cells could be partially blocked by a gap junction inhibitor and by inhibition of the notch signaling pathway, respectively. Similar findings were observed in vivo by which a subcutaneous injection of a co-culture of primary MSC with MDA-MB-231(GFP) cells into NOD/scid mice exhibited an about 10-fold increased tumor size and enhanced metastatic capacity as compared with the MDA-MB-231(GFP) mono-culture. Flow cytometric evaluation of the co-culture tumors revealed more than 90% of breast cancer cells with about 3% of CD90-positive cells, also suggesting an MSC-mediated in vivo induction of CD90 in MDA-MB-231 cells. Furthermore, immunohistochemical analysis demonstrated an elevated neovascularization and viability in the MSC/MDA-MB-231(GFP)-derived tumors. Together, these data suggested an MSC-mediated growth stimulation of breast cancer cells in vitro and in vivo by which the altered MSC morphology and the appearance of hybrid/chimeric cells and breast cancer-expressing CD90(+) cells indicate mutual cellular alterations.
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Affiliation(s)
- Katharina Mandel
- 1 Biochemistry and Tumor Biology Lab, Gynecology Research Unit , Department of Obstetrics and Gynecology, Hannover Medical School, Hannover, Germany
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Dunphy KA, Seo JH, Kim DJ, Roberts AL, Tao L, DiRenzo J, Balboni AL, Crisi GM, Hagen MJ, Chandrasekaran T, Gauger KJ, Schneider SS, Jerry DJ. Oncogenic transformation of mammary epithelial cells by transforming growth factor beta independent of mammary stem cell regulation. Cancer Cell Int 2013; 13:74. [PMID: 23883065 PMCID: PMC3733955 DOI: 10.1186/1475-2867-13-74] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 07/19/2013] [Indexed: 01/06/2023] Open
Abstract
Background Transforming growth factor beta (TGFβ) is transiently increased in the mammary gland during involution and by radiation. While TGFβ normally has a tumour suppressor role, prolonged exposure to TGFβ can induce an oncogenic epithelial to mesenchymal transition (EMT) program in permissive cells and initiate the generation of cancer stem cells. Our objective is to mimic the transient exposure to TGFβ during involution to determine the persistent effects on premalignant mammary epithelium. Method CDβGeo cells, a transplantable mouse mammary epithelial cell line, were treated in vitro for 14 days with TGFβ (5 ng/ml). The cells were passaged for an additional 14 days in media without TGFβ and then assessed for markers of EMT and transformation. Results The 14-day exposure to TGFβ induced EMT and transdifferentiation in vitro that persists after withdrawal of TGFβ. TGFβ-treated cells are highly tumorigenic in vivo, producing invasive solid de-differentiated tumours (100%; latency 6.7 weeks) compared to control (43%; latency 32.7 weeks). Although the TGFβ-treated cells have initiated a persistent EMT program, the stem cell population was unchanged relative to the controls. The gene expression profiles of TGFβ-treated cells demonstrate de-differentiation with decreases in the expression of genes that define luminal, basal and stem cells. Additionally, the gene expression profiles demonstrate increases in markers of EMT, growth factor signalling, TGFβ2 and changes in extra cellular matrix. Conclusion This model demonstrates full oncogenic EMT without an increase in stem cells, serving to separate EMT markers from stem cell markers.
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Affiliation(s)
- Karen A Dunphy
- Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | | | - Daniel J Kim
- Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Amy L Roberts
- Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Luwei Tao
- Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | | | | | | | - Mary J Hagen
- Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | | | - Kelly J Gauger
- Pioneer Valley Life Sciences Institute, Springfield, MA 01107, USA
| | | | - D Joseph Jerry
- Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003, USA ; Pioneer Valley Life Sciences Institute, Springfield, MA 01107, USA
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Activation-induced cytidine deaminase (AID) is necessary for the epithelial-mesenchymal transition in mammary epithelial cells. Proc Natl Acad Sci U S A 2013; 110:E2977-86. [PMID: 23882083 DOI: 10.1073/pnas.1301021110] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Activation-induced cytidine deaminase (AID), which functions in antibody diversification, is also expressed in a variety of germ and somatic cells. Evidence that AID promotes DNA demethylation in epigenetic reprogramming phenomena, and that it is induced by inflammatory signals, led us to investigate its role in the epithelial-mesenchymal transition (EMT), a critical process in normal morphogenesis and tumor metastasis. We find that expression of AID is induced by inflammatory signals that induce the EMT in nontransformed mammary epithelial cells and in ZR75.1 breast cancer cells. shRNA-mediated knockdown of AID blocks induction of the EMT and prevents cells from acquiring invasive properties. Knockdown of AID suppresses expression of several key EMT transcriptional regulators and is associated with increased methylation of CpG islands proximal to the promoters of these genes; furthermore, the DNA demethylating agent 5 aza-2'deoxycytidine (5-Aza-dC) antagonizes the effects of AID knockdown on the expression of EMT factors. We conclude that AID is necessary for the EMT in this breast cancer cell model and in nontransformed mammary epithelial cells. Our results suggest that AID may act near the apex of a hierarchy of regulatory steps that drive the EMT, and are consistent with this effect being mediated by cytosine demethylation. This evidence links our findings to other reports of a role for AID in epigenetic reprogramming and control of gene expression.
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Lindley LE, Briegel KJ. Generation of mice with a conditional Lbh null allele. Genesis 2013; 51:491-7. [PMID: 23495064 DOI: 10.1002/dvg.22390] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 02/28/2013] [Accepted: 03/04/2013] [Indexed: 11/08/2022]
Abstract
Limb bud and heart (LBH) is a developmentally expressed, tissue-specific transcription cofactor in vertebrates that acts in the WNT signaling pathway, a genetic program critical for embryogenesis and adult tissue homeostasis. Aberrant gain-of-function of LBH is implicated in both human congenital disease and cancer. The normal physiological function of LBH has remained elusive owing to a lack of genetic loss-of-function models. Here, we have generated mice with a conditional null allele of Lbh by flanking exon 2 with loxP sites (Lbh(flox)). Homozygous Lbh(flox) and Lbh(loxP) mice, in which the Neo cassette was removed through FLPe-mediated recombination, were viable and fertile, indicating that these conditional Lbh alleles are fully functional. Lbh(loxP) mice were then crossed with a Rosa26-Cre line, resulting in ubiquitous deletion of exon 2 and abolishment of LBH protein expression. Mice homozygous for the Lbh null allele (Lbh(Δ)(2)) displayed normal embryonic development and postnatal growth with morphologies indistinguishable from wild-type littermates. However, mammary gland development, which occurs primarily after birth, was perturbed. Thus, the conditional Lbh allele will be a valuable tool to uncover the currently unknown tissue-specific roles of LBH in postnatal development and disease.
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Affiliation(s)
- Linsey E Lindley
- Department of Biochemistry and Molecular Biology, Braman Family Breast Cancer Institute at the Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
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Harata A, Matsuzaki T, Nishikawa A, Ihara S. The cell sorting process of Xenopus gastrula cells involves the acto-myosin system and TGF-β signaling. In Vitro Cell Dev Biol Anim 2013; 49:220-9. [PMID: 23435857 DOI: 10.1007/s11626-013-9586-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Accepted: 01/25/2013] [Indexed: 01/03/2023]
Abstract
We have previously shown that the cell sorting process of animal pole cells (AC) and vegetal pole cells (VC) from Xenopus gastrulae is considered to involve two steps: concentrification and polarization. In this study, we addressed the question of what specified the spatial relationship of the AC and VC clusters during the process. First, we examined the inhibitory or facilitatory treatment for myosin 2 activity during each of the two steps. The aggregates treated with Y27632 or blebbistatin during the concentrification step showed a cluster random arrangement, suggesting the prevention of the cell sorting by inhibition of myosin 2. Meanwhile, the treatment with a Rac1 inhibitor, NSC23766, during the same step resulted in promotion of the fusion of the AC clusters and the progression of the cell sorting, presumably by an indirect activation of myosin 2. On the other hand, the treatments with any of the three drugs during the polarization step showed that the two clusters did not appose, and their array remained concentric. Thus, the modulation of cell contraction might be indispensable to each of the two steps. Next, the activin/nodal TGF-β signaling was perturbed by using a specific activin receptor-like kinase inhibitor, SB431542. The results revealed a bimodal participation of the activin/nodal TGF-β signaling, i.e., suppressive and promotive effects on the concentrification and the polarization, respectively. Thus, the present in vitro system, which permits not only the cell contraction-mediated cell sorting but also the TGF-β-directed mesodermal induction such as cartilage formation, may fairly reflect the embryogenesis in vivo.
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Affiliation(s)
- Ayano Harata
- Department of Biological Science, Faculty of Life and Environmental Science, Shimane University, 1060 Nisikawatsu-cho, Matsue, Shimane, 690-8504, Japan
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Ozturk F, Li Y, Zhu X, Guda C, Nawshad A. Systematic analysis of palatal transcriptome to identify cleft palate genes within TGFβ3-knockout mice alleles: RNA-Seq analysis of TGFβ3 Mice. BMC Genomics 2013; 14:113. [PMID: 23421592 PMCID: PMC3618314 DOI: 10.1186/1471-2164-14-113] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 02/13/2013] [Indexed: 12/19/2022] Open
Abstract
Background In humans, cleft palate (CP) accounts for one of the largest number of birth defects with a complex genetic and environmental etiology. TGFβ3 has been established as an important regulator of palatal fusion in mice and it has been shown that TGFβ3-null mice exhibit CP without any other major deformities. However, the genes that regulate cellular decisions and molecular mechanisms maintained by the TGFβ3 pathway throughout palatogenesis are predominantly unexplored. Our objective in this study was to analyze global transcriptome changes within the palate during different gestational ages within TGFβ3 knockout mice to identify TGFβ3-associated genes previously unknown to be associated with the development of cleft palate. We used deep sequencing technology, RNA-Seq, to analyze the transcriptome of TGFβ3 knockout mice at crucial stages of palatogenesis, including palatal growth (E14.5), adhesion (E15.5), and fusion (E16.5). Results The overall transcriptome analysis of TGFβ3 wildtype mice (C57BL/6) reveals that almost 6000 genes were upregulated during the transition from E14.5 to E15.5 and more than 2000 were downregulated from E15.5 to E16.5. Using bioinformatics tools and databases, we identified the most comprehensive list of CP genes (n = 322) in which mutations cause CP either in humans or mice, and analyzed their expression patterns. The expression motifs of CP genes between TGFβ3+/− and TGFβ3−/− were not significantly different from each other, and the expression of the majority of CP genes remained unchanged from E14.5 to E16.5. Using these patterns, we identified 8 unique genes within TGFβ3−/− mice (Chrng, Foxc2, H19, Kcnj13, Lhx8, Meox2, Shh, and Six3), which may function as the primary contributors to the development of cleft palate in TGFβ3−/− mice. When the significantly altered CP genes were overlaid with TGFβ signaling, all of these genes followed the Smad-dependent pathway. Conclusions Our study represents the first analysis of the palatal transcriptome of the mouse, as well as TGFβ3 knockout mice, using deep sequencing methods. In this study, we characterized the critical regulation of palatal transcripts that may play key regulatory roles through crucial stages of palatal development. We identified potential causative CP genes in a TGFβ3 knockout model, which may lead to a better understanding of the genetic mechanisms of palatogenesis and provide novel potential targets for gene therapy approaches to treat cleft palate.
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Affiliation(s)
- Ferhat Ozturk
- Department of Oral Biology, College of Dentistry, University of Nebraska Medical Center, 40th and Holdrege St, Lincoln, NE 68583, USA
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Hursting SD, Dunlap SM. Obesity, metabolic dysregulation, and cancer: a growing concern and an inflammatory (and microenvironmental) issue. Ann N Y Acad Sci 2013; 1271:82-7. [PMID: 23050968 PMCID: PMC3485672 DOI: 10.1111/j.1749-6632.2012.06737.x] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Obesity is an established risk and progression factor for many cancers. In the United States more than one-third of adults, and nearly one in five children, are currently obese. Thus, a better understanding of the mechanistic links between obesity and cancer is urgently needed to identify intervention targets and strategies to offset the procancer effects of obesity. This review synthesizes the evidence on key biological mechanisms underlying the obesity–cancer association, with particular emphasis on obesity-associated enhancements in growth factor signaling, inflammation, and perturbations in the tumor microenvironment. These interrelated pathways and processes represent mechanistic targets for disrupting the obesity–cancer link.
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Affiliation(s)
- Stephen D Hursting
- Department of Nutritional Sciences, University of Texas, Austin, TX, USA.
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Hollestelle A, Peeters JK, Smid M, Timmermans M, Verhoog LC, Westenend PJ, Heine AAJ, Chan A, Sieuwerts AM, Wiemer EAC, Klijn JGM, van der Spek PJ, Foekens JA, Schutte M, den Bakker MA, Martens JWM. Loss of E-cadherin is not a necessity for epithelial to mesenchymal transition in human breast cancer. Breast Cancer Res Treat 2013; 138:47-57. [DOI: 10.1007/s10549-013-2415-3] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 01/11/2013] [Indexed: 11/25/2022]
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Shimoda M, Sugiura T, Imajyo I, Ishii K, Chigita S, Seki K, Kobayashi Y, Shirasuna K. The T-box transcription factor Brachyury regulates epithelial-mesenchymal transition in association with cancer stem-like cells in adenoid cystic carcinoma cells. BMC Cancer 2012; 12:377. [PMID: 22931165 PMCID: PMC3492149 DOI: 10.1186/1471-2407-12-377] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 08/20/2012] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND The high frequencies of recurrence and distant metastasis of adenoid cystic carcinoma (AdCC) emphasize the need to better understand the biological factors associated with these outcomes. To analyze the mechanisms of AdCC metastasis, we established the green fluorescence protein (GFP)-transfected subline ACCS-GFP from the AdCC parental cell line and the metastatic ACCS-M GFP line from an in vivo metastasis model. METHODS Using these cell lines, we investigated the involvement of the epithelial-mesenchymal transition (EMT) and cancer stem cell (CSCs) in AdCC metastasis by real-time RT-PCR for EMT related genes and stem cell markers. Characteristics of CSCs were also analyzed by sphere-forming ability and tumorigenicity. Short hairpin RNA (shRNA) silencing of target gene was also performed. RESULTS ACCS-M GFP demonstrated characteristics of EMT and additionally displayed sphere-forming ability and high expression of EMT-related genes (Snail, Twist1, Twist2, Slug, zinc finger E-box binding homeobox 1 and 2 [Zeb1 and Zeb2], glycogen synthase kinase 3 beta [Gsk3β and transforming growth factor beta 2 [Tgf-β2]), stem cell markers (Nodal, Lefty, Oct-4, Pax6, Rex1, and Nanog), and differentiation markers (sex determining region Y [Sox2], Brachyury, and alpha fetoprotein [Afp]). These observations suggest that ACCS-M GFP shows the characteristics of CSCs and CSCs may be involved in the EMT of AdCC. Surprisingly, shRNA silencing of the T-box transcription factor Brachyury (also a differentiation marker) resulted in downregulation of the EMT and stem cell markers. In addition, sphere-forming ability, EMT characteristics, and tumorigenicity were simultaneously lost. Brachyury expression in clinical samples of AdCC was extremely high and closely related to EMT. This finding suggests that regulation of EMT by Brachyury in clinical AdCC may parallel that observed in vitro in this study. CONCLUSIONS The use of a single cell line is a limitation of this study. However, parallel data from in vitro and clinical samples suggest the possibility that EMT is directly linked to CSCs and that Brachyury is a regulator of EMT and CSCs.
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Affiliation(s)
- Miyuki Shimoda
- Division of Maxillofacial Diagnostic and Surgical Sciences, Department of Oral and Maxillofacial Surgery, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka 812-8582, Japan
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Gheldof A, Hulpiau P, van Roy F, De Craene B, Berx G. Evolutionary functional analysis and molecular regulation of the ZEB transcription factors. Cell Mol Life Sci 2012; 69:2527-41. [PMID: 22349261 PMCID: PMC11115101 DOI: 10.1007/s00018-012-0935-3] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Revised: 01/23/2012] [Accepted: 01/26/2012] [Indexed: 02/07/2023]
Abstract
ZEB1 and ZEB2, which are members of the ZEB family of transcription factors, play a pivotal role in the development of the vertebrate embryo. However, recent evidence shows that both proteins can also drive the process of epithelial-mesenchymal transition during malignant cancer progression. The understanding of how both ZEBs act as transcription factors opens up new possibilities for future treatment of advanced carcinomas. This review gives insight into the molecular mechanisms that form the basis of the multitude of cellular processes controlled by both ZEB factors. By using an evolutionary approach, we analyzed how the specific organization of the different domains and regulatory sites in ZEB1 and ZEB2 came into existence. On the basis of this analysis, a detailed overview is provided of the different cofactors and post-translational mechanisms that are associated with ZEB protein functionality.
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Affiliation(s)
- Alexander Gheldof
- Unit of Molecular and Cellular Oncology, Department for Molecular Biomedical Research, VIB, Technologiepark 927, 9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Paco Hulpiau
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Frans van Roy
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
- Molecular Cell Biology Unit, Department for Molecular Biomedical Research, VIB, 9052 Ghent, Belgium
| | - Bram De Craene
- Unit of Molecular and Cellular Oncology, Department for Molecular Biomedical Research, VIB, Technologiepark 927, 9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
| | - Geert Berx
- Unit of Molecular and Cellular Oncology, Department for Molecular Biomedical Research, VIB, Technologiepark 927, 9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium
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The T box transcription factor TBX2 promotes epithelial-mesenchymal transition and invasion of normal and malignant breast epithelial cells. PLoS One 2012; 7:e41355. [PMID: 22844464 PMCID: PMC3402503 DOI: 10.1371/journal.pone.0041355] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Accepted: 06/20/2012] [Indexed: 12/18/2022] Open
Abstract
The T box transcription factor TBX2, a master regulator of organogenesis, is aberrantly amplified in aggressive human epithelial cancers. While it has been shown that overexpression of TBX2 can bypass senescence, a failsafe mechanism against cancer, its potential role in tumor invasion has remained obscure. Here we demonstrate that TBX2 is a strong cell-autonomous inducer of the epithelial-mesenchymal transition (EMT), a latent morphogenetic program that is key to tumor progression from noninvasive to invasive malignant states. Ectopic expression of TBX2 in normal HC11 and MCF10A mammary epithelial cells was sufficient to induce morphological, molecular, and behavioral changes characteristic of EMT. These changes included loss of epithelial adhesion and polarity gene (E-cadherin, ß-catenin, ZO1) expression, and abnormal gain of mesenchymal markers (N-cadherin, Vimentin), as well as increased cell motility and invasion. Conversely, abrogation of endogenous TBX2 overexpression in the malignant human breast carcinoma cell lines MDA-MB-435 and MDA-MB-157 led to a restitution of epithelial characteristics with reciprocal loss of mesenchymal markers. Importantly, TBX2 inhibition abolished tumor cell invasion and the capacity to form lung metastases in a Xenograft mouse model. Meta-analysis of gene expression in over one thousand primary human breast tumors further showed that high TBX2 expression was significantly associated with reduced metastasis-free survival in patients, and with tumor subtypes enriched in EMT gene signatures, consistent with a role of TBX2 in oncogenic EMT. ChIP analysis and cell-based reporter assays further revealed that TBX2 directly represses transcription of E-cadherin, a tumor suppressor gene, whose loss is crucial for malignant tumor progression. Collectively, our results uncover an unanticipated link between TBX2 deregulation in cancer and the acquisition of EMT and invasive features of epithelial tumor cells.
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Connolly EC, Freimuth J, Akhurst RJ. Complexities of TGF-β targeted cancer therapy. Int J Biol Sci 2012; 8:964-78. [PMID: 22811618 PMCID: PMC3399319 DOI: 10.7150/ijbs.4564] [Citation(s) in RCA: 269] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 06/23/2012] [Indexed: 02/07/2023] Open
Abstract
Many advanced tumors produce excessive amounts of Transforming Growth Factor-β (TGF-β) which, in normal epithelial cells, is a potent growth inhibitor. However, in oncogenically activated cells, the homeostatic action of TGF-β is often diverted along alternative pathways. Hence, TGF-β signaling elicits protective or tumor suppressive effects during the early growth-sensitive stages of tumorigenesis. However, later in tumor development when carcinoma cells become refractory to TGF-β-mediated growth inhibition, the tumor cell responds by stimulating pathways with tumor progressing effects. At late stages of malignancy, tumor progression is driven by TGF-β overload. The tumor microenvironment is a target of TGF-β action that stimulates tumor progression via pro-tumorigenic effects on vascular, immune, and fibroblastic cells. Bone is one of the richest sources of TGF-β in the body and a common site for dissemination of breast cancer metastases. Osteoclastic degradation of bone matrix, which accompanies establishment and growth of metastases, triggers further release of bone-derived TGF-β. This leads to a vicious positive feedback of tumor progression, driven by ever increasing levels of TGF-β released from both the tumor and bone matrix. It is for this reason, that pharmaceutical companies have developed therapeutic agents that block TGF-β signaling. Nonetheless, the choice of drug design and dosing strategy can affect the efficacy of TGF-β therapeutics. This review will describe pre-clinical and clinical data of four major classes of TGF-β inhibitor, namely i) ligand traps, ii) antisense oligonucleotides, iii) receptor kinase inhibitors and iv) peptide aptamers. Long term dosing strategies with TGF-β inhibitors may be ill-advised, since this class of drug has potentially highly pleiotropic activity, and development of drug resistance might potentiate tumor progression. Current paradigms for the use of TGF-β inhibitors in oncology have therefore moved towards the use of combinatorial therapies and short term dosing, with considerable promise for the clinic.
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Affiliation(s)
- Erin C. Connolly
- 1. UCSF Helen Diller Family Comprehensive Cancer Center, University of California at San Francisco, California 94143-0512, USA
| | - Julia Freimuth
- 1. UCSF Helen Diller Family Comprehensive Cancer Center, University of California at San Francisco, California 94143-0512, USA
| | - Rosemary J. Akhurst
- 1. UCSF Helen Diller Family Comprehensive Cancer Center, University of California at San Francisco, California 94143-0512, USA
- 2. Department of Anatomy, University of California at San Francisco, California 94143-0512, USA
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Abstract
It has been reported previously that: (1) normal-breast epithelial cells that are CD24-/44+ express higher levels of stem/progenitor cell-associated genes; (2) cancer cells that have undergone epithelial to mesenchymal transition display CD24-/44+ cell-surface expression, a marker for breast cancer stem cells; (3) loss of E-cadherin is a preliminary step in epithelial to mesenchymal transition; and (4) vimentin is a marker of mesenchymal phenotype. We hypothesized that stem cell subpopulations would be more frequent in metastatic than in primary tumors. Therefore we assessed by immunohistochemical analysis, tissue microarrays containing tissue from primary and associated metastatic breast cancers for expression of CD24, CD44, E-cadherin and vimentin to evaluate candidate cancer-initiating cell populations in breast cancer subtypes and metastatic lesions. The occurrence of CD24-/44+ and CD24+/44- cells did not differ in primary vs matched lymph node or distant and locoregional metastatic lesions; E-cadherin expression was decreased in primary vs lymph node metastases (P=0.018) but not decreased in distant and locoregional metastases relative to primary tumor, whereas vimentin, was more frequently expressed in lymph node and distant and locoregional metastases (P=0.013, P=0.004) than in matched primary cancers. Thus, the frequency of CD24-/44+ cells does not differ in metastases relative to the primary breast cancer but differs by tumor stage and subtype.
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Sudo T, Iwaya T, Nishida N, Sawada G, Takahashi Y, Ishibashi M, Shibata K, Fujita H, Shirouzu K, Mori M, Mimori K. Expression of mesenchymal markers vimentin and fibronectin: the clinical significance in esophageal squamous cell carcinoma. Ann Surg Oncol 2012; 20 Suppl 3:S324-35. [PMID: 22644514 DOI: 10.1245/s10434-012-2418-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Indexed: 11/18/2022]
Abstract
BACKGROUND The importance of mesenchymal characteristics has not been fully elucidated in esophageal cancer. METHODS Ten normal and 77 tumor specimens were collected. Microarray analysis was performed to analyze the expression patterns of epithelial markers, mesenchymal markers, epithelial mesenchymal transition (EMT)-related genes and stem cell markers. RT-PCR analysis was conducted to confirm the results of microarray analysis. Immunohistochemical analysis was performed to verify the level of protein expression. Statistical analysis was performed to investigate the correlation between selected genes and clinicopathological factors. RESULTS Microarray analysis showed that epithelial markers were significantly down-regulated whereas mesenchymal markers and EMT transcription factors were up-regulated in cancer cells. Two types of gene expression patterns were found in the clustering analysis, type 1 tumors and type 2 tumors. Type 1 tumor clusters did not reveal a fixed gene expression pattern whereas type 2 tumor clusters revealed up-regulation of mesenchymal markers EMT inducers and related genes. Vimentin and fibronectin were selected to distinguish between tumor types 1 and 2. Type 2 tumors showed significantly larger tumor sizes (p < 0.0001), wider ranges of lymph node metastasis (p = 0.0057), and a more severe clinical stage (p < 0.0001) than did type 1 tumors. The prognosis of patients with type 2 tumors was significantly worse than that of patients with type 1 tumors. Univariate and multivariate analyses revealed that classification of type 2 tumors was an independent prognostic factor. CONCLUSIONS The analysis of mesenchymal markers in esophageal cancer is useful in distinguishing patients with a poor prognosis.
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Affiliation(s)
- Tomoya Sudo
- Department of Surgery, Medical Institute of Bioregulation, Kyushu University, Beppu, Japan,
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46
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Dunlap SM, Chiao LJ, Nogueira L, Usary J, Perou CM, Varticovski L, Hursting SD. Dietary energy balance modulates epithelial-to-mesenchymal transition and tumor progression in murine claudin-low and basal-like mammary tumor models. Cancer Prev Res (Phila) 2012; 5:930-42. [PMID: 22588949 DOI: 10.1158/1940-6207.capr-12-0034] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Using novel murine models of claudin-low and basal-like breast cancer, we tested the hypothesis that diet-induced obesity (DIO) and calorie restriction (CR) differentially modulate progression of these aggressive breast cancer subtypes. For model development, we characterized two cell lines, "mesenchymal (M)-Wnt" and "epithelial (E)-Wnt," derived from MMTV-Wnt-1 transgenic mouse mammary tumors. M-Wnt, relative to E-Wnt, cells were tumor-initiating cell (TIC)-enriched (62% vs. 2.4% CD44(high)/CD24(low)) and displayed enhanced ALDEFLUOR positivity, epithelial-to-mesenchymal transition (EMT) marker expression, mammosphere-forming ability, migration, invasion, and tumorigenicity (P < 0.001; each parameter). M-Wnt and E-Wnt cells clustered with claudin-low and basal-like breast tumors, respectively, in gene expression profiles and recapitulated these tumors when orthotopically transplanted into ovariectomized C57BL/6 mice. To assess the effects of energy balance interventions on tumor progression and EMT, mice were administered DIO, control, or CR diets for 8 weeks before orthotopic transplantation of M-Wnt or E-Wnt cells (for each cell line, n = 20 mice per diet) and continued on their diets for 6 weeks while tumor growth was monitored. Relative to control, DIO enhanced M-Wnt (P = 0.01), but not E-Wnt, tumor progression; upregulated EMT- and TIC-associated markers including N-cadherin,fibronectin, TGFβ, Snail, FOXC2, and Oct4 (P < 0.05, each); and increased intratumoral adipocytes. Conversely, CR suppressed M-Wnt and E-Wnt tumor progression (P < 0.02, each) and inhibited EMT and intratumoral adipocyte accumulation. Thus, dietary energy balance interventions differentially modulate EMT and progression of claudin-low and basal-like tumors. EMT pathway components may represent targets for breaking the obesity-breast cancer link, particularly for preventing and/or controlling TIC-enriched subtypes such as claudin-low breast cancer.
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Affiliation(s)
- Sarah M Dunlap
- Department of Nutritional Sciences, University of Texas, Austin, TX, USA
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Tran DD, Corsa CAS, Biswas H, Aft RL, Longmore GD. Temporal and spatial cooperation of Snail1 and Twist1 during epithelial-mesenchymal transition predicts for human breast cancer recurrence. Mol Cancer Res 2011; 9:1644-57. [PMID: 22006115 PMCID: PMC4922748 DOI: 10.1158/1541-7786.mcr-11-0371] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Epithelial-mesenchymal transition (EMT) is a normal developmental program that is considered to also play an important role in cancer metastasis. Ultimate inducers of EMT are transcriptional repressors that individually can induce experimental EMT, yet in many cells, particularly cancer cells, multiple inducers are expressed simultaneously. Why, and if, and how they interact to regulate EMT is unanswered. Using RNA interference technology to affect protein knockdown and avoid potential overexpression artifact coupled with transient TGFβ treatment to better mimic in vivo conditions we show, in both nontumorigenic and tumorigenic epithelial cancer cells, that Snail1 is uniquely required for EMT initiation, whereas Twist1 is required to maintain late EMT. Twist1, present in resting epithelial cells, is dispensable for EMT initiation. Mechanistically, in response to transient TGFβ treatment, transient Snail1 expression represses Twist1 transcription directly, which is subsequently upregulated, as Snail1 levels decrease, to sustain E-cadherin downregulation and growth arrest of EMT. Persistent Twist1 expression is associated with a p38 and extracellular signal-regulated kinase signal feedback loop that sustains growth-inhibitory signals characteristic of quiescent micrometastatic tumors. This Snail1-Twist1 temporal and spatial cooperation was also observed in vivo during human breast cancer progression to metastasis. Twist1 level, but not Snail1 level, and Twist1:Snail1 ratio in disseminated micrometastatic bone marrow tumor cells was found to correlate with survival and treatment resistance and is highly predictive of metastatic or recurrent disease.
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Affiliation(s)
- David D. Tran
- Departments of Medicine, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
| | - Callie Ann S. Corsa
- Departments of Medicine, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
- The BRIGHT Institute, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
- Cell Biology and Physiology, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
| | - Hirak Biswas
- Departments of Medicine, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
- The BRIGHT Institute, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
- Cell Biology and Physiology, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
| | - Rebecca L. Aft
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
- John Cochran Veterans Administration Hospital, 915 North Grand Boulevard, Saint Louis, MO 63106, USA
| | - Gregory D. Longmore
- Departments of Medicine, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
- The BRIGHT Institute, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
- Cell Biology and Physiology, Washington University School of Medicine, 660 South Euclid Avenue, Saint Louis, MO 63110, USA
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48
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Kume T. The Role of FoxC2 Transcription Factor in Tumor Angiogenesis. JOURNAL OF ONCOLOGY 2011; 2012:204593. [PMID: 22174714 PMCID: PMC3228356 DOI: 10.1155/2012/204593] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 08/17/2011] [Accepted: 08/29/2011] [Indexed: 12/27/2022]
Abstract
Much has been learned about the mechanisms underlying tumor angiogenesis, and therapies that target vascular endothelial growth factor (VEGF) to limit tumor angiogenesis and subsequent disease progression have recently been approved. However, the transcriptional mechanisms that regulate pathological angiogenesis remain largely unknown. FoxC2, a member of the Forkhead box (Fox) transcription factor family, is critical for vascular formation during development, and recent studies have shown that FoxC2 is expressed in the endothelium of tumors in both humans and mice. In a B16 mouse melanoma model, Foxc2 deficiency reduced tumor growth and neovascularization and was associated with impairments in mural-cell coverage and increases in endothelial-cell apoptosis in tumor blood vessels. FoxC2 is also expressed by tumor cells in human breast, colonic, and esophageal cancer and participates in the epithelial-mesenchymal transition (EMT), a key process that leads to the invasion and metastasis of aggressive tumors. Collectively, these observations suggest that FoxC2 is essential for tumor angiogenesis and disease progression and that FoxC2 may be a viable target for cancer therapy.
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Affiliation(s)
- Tsutomu Kume
- Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, 303E Chicago Avenue, Chicago, IL 60611, USA
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Findlay VJ, Turner DP, Yordy JS, McCarragher B, Shriver MR, Szalai G, Watson PM, Larue AC, Moussa O, Watson DK. Prostate-Derived ETS Factor Regulates Epithelial-to-Mesenchymal Transition through Both SLUG-Dependent and Independent Mechanisms. Genes Cancer 2011; 2:120-9. [PMID: 21779485 DOI: 10.1177/1947601911410424] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 04/20/2011] [Accepted: 04/23/2011] [Indexed: 01/01/2023] Open
Abstract
The 5-year survival rate is very low when breast cancer becomes metastatic. The metastatic process is governed by a network of molecules of which SLUG is known to play a major role as a regulator of epithelial-to-mesenchymal transition (EMT). Prostate-derived ETS factor (PDEF) has been proposed as a tumor suppressor, possibly through inhibition of invasion and metastasis; therefore, understanding the mechanism of PDEF regulation may help to better understand its role in breast cancer progression. This study shows for the first time that the transcription factor SLUG is a direct target of PDEF in breast cancer. We show that the expression of PDEF is able to suppress/dampen EMT through the negative regulation of SLUG. In addition, we show that PDEF is also able to regulate downstream targets of SLUG, namely E-cadherin, in both SLUG-dependent and -independent manners, suggesting a critical role for PDEF in regulating EMT.
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Affiliation(s)
- Victoria J Findlay
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA
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50
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Slabáková E, Pernicová Z, Slavíčková E, Staršíchová A, Kozubík A, Souček K. TGF-β1-induced EMT of non-transformed prostate hyperplasia cells is characterized by early induction of SNAI2/Slug. Prostate 2011; 71:1332-43. [PMID: 21321977 DOI: 10.1002/pros.21350] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2010] [Accepted: 01/06/2011] [Indexed: 12/13/2022]
Abstract
BACKGROUND Epithelial-mesenchymal transition (EMT) underlying cancer cell invasion and metastasis has been thoroughly studied in prostate cancer. Although EMT markers have been clinically observed in benign prostate hyperplasia, molecular events underlying the onset and progression of EMT in benign prostate cells have not been described. METHODS EMT in BPH-1 cells was induced by TGF-β1 treatment and the kinetics of expression of EMT markers, regulators, and selected miRNAs was assessed by western blotting and quantitative RT-PCR. RESULTS EMT in BPH-1 cells was accompanied by rapid up-regulation of SNAI2/Slug and ZEB1 transcription factors, while changes in expression levels of ZEB2 and miR-200 family members were observed after extended time intervals. Invasive phenotype with EMT hallmarks, characterizing tumorigenic clones derived from BPH-1 cells, was associated with increased mRNA levels of SNAI2, ZEB1, and ZEB2, but was not associated with significant changes in basal levels of miR-200 family members. RNA interference revealed that SNAI2/Slug is crucial for TGF-β1-induced vimentin up-regulation and migration of BPH-1 cells. CONCLUSIONS This study suggests that in BPH-1 cells the transcription factor SNAI2/Slug is important for EMT initiation, while the ZEB family of transcription factors in cooperation with the miR-200 family may oppose the reversal of the EMT phenotype.
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Affiliation(s)
- Eva Slabáková
- Department of Cytokinetics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
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