1
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Zeng P, Shu LZ, Zhou YH, Huang HL, Wei SH, Liu WJ, Deng H. Stem cell division and its critical role in mammary gland development and tumorigenesis: current progress and remaining challenges. Stem Cells Dev 2024. [PMID: 38943275 DOI: 10.1089/scd.2024.0035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2024] Open
Abstract
The origin of breast cancer (BC) has traditionally been a focus of medical research. It is widely acknowledged that BC originates from immortal mammary stem cells (MaSCs) and that these stem cells participate in two division modes: symmetric cell division (SCD) and asymmetric cell division (ACD). Although both of these modes are key to the process of breast development and their imbalance is closely associated with the onset of BC, the molecular mechanisms underlying these phenomena deserve in-depth exploration. In this review, we first outline the molecular mechanisms governing ACD/SCD and analyze the role of ACD/SCD in various stages of breast development. We describe that the changes in telomerase activity, the role of polar proteins, and the stimulation of ovarian hormones subsequently lead to two distinct consequences: breast development or carcinogenesis. Finally, gene mutations, abnormalities in polar proteins, modulation of signal-transduction pathways, and alterations in the microenvironment disrupt the balance of breast cancer stem cells (BCSCs) division modes and cause BC. Important regulatory factors such as mammalian Inscuteable (mInsc), Numb, Eya1, PKCα, PKCθ, p53, and IL-6 also play significant roles in regulating pathways of ACD/SCD and may constitute key targets for future research on stem cell division, breast development, and tumor therapy.
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Affiliation(s)
- Peng Zeng
- Department of Breast Surgery, Jiangxi Armed Police Corps Hospital, Nanchang 330001, Jiangxi Province, China, China;
| | - Lin-Zhen Shu
- Jiangxi Medical College, Nanchang University, 330031, Nanchang, Jiangxi, China, nanchang, China;
| | - Yu-Hong Zhou
- Department of Breast Surgery, Jiangxi Armed Police Corps Hospital, Nanchang 330001, Jiangxi Province, China, China;
| | - Hai-Lin Huang
- Department of Breast Surgery, Jiangxi Armed Police Corps Hospital, Nanchang 330001, Jiangxi Province, China, China;
| | - Shu-Hua Wei
- Department of Breast Surgery, Jiangxi Armed Police Corps Hospital, Nanchang 330001, Jiangxi Province, China, China;
| | - Wen-Jian Liu
- Department of Breast Surgery, Jiangxi Armed Police Corps Hospital, Nanchang 330001, Jiangxi Province, China, China;
| | - Huan Deng
- The Fourth Affiliated Hospital, Jiangxi Medical College, Nanchang University, Department of Pathology, Nanchang, China
- Rehabiliation Hospital, Jiangxi Medical College, Nanchang University, 330006, Nanchang, Jiangxi, China, China;
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2
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Carabaña C, Sun W, Veludo Ramos C, Huyghe M, Perkins M, Maillot A, Journot R, Hartani F, Faraldo MM, Lloyd-Lewis B, Fre S. Spatially distinct epithelial and mesenchymal cell subsets along progressive lineage restriction in the branching embryonic mammary gland. EMBO J 2024; 43:2308-2336. [PMID: 38760574 PMCID: PMC11183262 DOI: 10.1038/s44318-024-00115-3] [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: 07/25/2023] [Revised: 04/06/2024] [Accepted: 04/17/2024] [Indexed: 05/19/2024] Open
Abstract
How cells coordinate morphogenetic cues and fate specification during development remains a fundamental question in organogenesis. The mammary gland arises from multipotent stem cells (MaSCs), which are progressively replaced by unipotent progenitors by birth. However, the lack of specific markers for early fate specification has prevented the delineation of the features and spatial localization of MaSC-derived lineage-committed progenitors. Here, using single-cell RNA sequencing from E13.5 to birth, we produced an atlas of matched mouse mammary epithelium and mesenchyme and reconstructed the differentiation trajectories of MaSCs toward basal and luminal fate. We show that murine MaSCs exhibit lineage commitment just prior to the first sprouting events of mammary branching morphogenesis at E15.5. We identify early molecular markers for committed and multipotent MaSCs and define their spatial distribution within the developing tissue. Furthermore, we show that the mammary embryonic mesenchyme is composed of two spatially restricted cell populations, and that dermal mesenchyme-produced FGF10 is essential for embryonic mammary branching morphogenesis. Altogether, our data elucidate the spatiotemporal signals underlying lineage specification of multipotent MaSCs, and uncover the signals from mesenchymal cells that guide mammary branching morphogenesis.
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Affiliation(s)
- Claudia Carabaña
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
- Sorbonne Université, Collège Doctoral, Paris, France
- Department of Health Sciences, Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, C/Tajo, s/n, Villaviciosa de Odón, 28670, Madrid, Spain
| | - Wenjie Sun
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Camila Veludo Ramos
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Mathilde Huyghe
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Meghan Perkins
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Aurélien Maillot
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Robin Journot
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Fatima Hartani
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Marisa M Faraldo
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Bethan Lloyd-Lewis
- School of Cellular and Molecular Medicine, University of Bristol, Biomedical Sciences Building, Bristol, BS8 1TD, UK.
| | - Silvia Fre
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France.
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3
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Aminu M, Hong L, Vokes N, Schmidt ST, Saad M, Zhu B, Le X, Tina C, Sheshadri A, Wang B, Jaffray D, Futreal A, Lee JJ, Byers LA, Gibbons D, Heymach J, Chen K, Cheng C, Zhang J, Wu J. Joint multi-omics discriminant analysis with consistent representation learning using PANDA. RESEARCH SQUARE 2024:rs.3.rs-4353037. [PMID: 38798352 PMCID: PMC11118856 DOI: 10.21203/rs.3.rs-4353037/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Integrative multi-omics analysis provides deeper insight and enables better and more realistic modeling of the underlying biology and causes of diseases than does single omics analysis. Although several integrative multi-omics analysis methods have been proposed and demonstrated promising results in integrating distinct omics datasets, inconsistent distribution of the different omics data, which is caused by technology variations, poses a challenge for paired integrative multi-omics methods. In addition, the existing discriminant analysis-based integrative methods do not effectively exploit correlation and consistent discriminant structures, necessitating a compromise between correlation and discrimination in using these methods. Herein we present PAN-omics Discriminant Analysis (PANDA), a joint discriminant analysis method that seeks omics-specific discriminant common spaces by jointly learning consistent discriminant latent representations for each omics. PANDA jointly maximizes between-class and minimizes within-class omics variations in a common space and simultaneously models the relationships among omics at the consistency representation and cross-omics correlation levels, overcoming the need for compromise between discrimination and correlation as with the existing integrative multi-omics methods. Because of the consistency representation learning incorporated into the objective function of PANDA, this method seeks a common discriminant space to minimize the differences in distributions among omics, can lead to a more robust latent representations than other methods, and is against the inconsistency of the different omics. We compared PANDA to 10 other state-of-the-art multi-omics data integration methods using both simulated and real-world multi-omics datasets and found that PANDA consistently outperformed them while providing meaningful discriminant latent representations. PANDA is implemented using both R and MATLAB, with codes available at https://github.com/WuLabMDA/PANDA.
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Affiliation(s)
- Muhammad Aminu
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lingzhi Hong
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Natalie Vokes
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Stephanie T. Schmidt
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Maliazurina Saad
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bo Zhu
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xiuning Le
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Cascone Tina
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ajay Sheshadri
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bo Wang
- Department of Medical Biophysics, University of Toronto, Ontario, Canada
| | - David Jaffray
- Office of the Chief Technology and Digital Officer, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Andy Futreal
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - J. Jack Lee
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lauren A. Byers
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Don Gibbons
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - John Heymach
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ken Chen
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chao Cheng
- Department of Medicine, Institution of Clinical and Translational Research, Baylor College of Medicine, Houston, TX, USA
| | - Jianjun Zhang
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jia Wu
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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4
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Tollot-Wegner M, Jessen M, Kim K, Sanz-Moreno A, Spielmann N, Gailus-Durner V, Fuchs H, Hrabe de Angelis M, von Eyss B. TRPS1 maintains luminal progenitors in the mammary gland by repressing SRF/MRTF activity. Breast Cancer Res 2024; 26:74. [PMID: 38702730 PMCID: PMC11067134 DOI: 10.1186/s13058-024-01824-7] [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: 12/22/2023] [Accepted: 04/12/2024] [Indexed: 05/06/2024] Open
Abstract
The transcription factor TRPS1 is a context-dependent oncogene in breast cancer. In the mammary gland, TRPS1 activity is restricted to the luminal population and is critical during puberty and pregnancy. Its function in the resting state remains however unclear. To evaluate whether it could be a target for cancer therapy, we investigated TRPS1 function in the healthy adult mammary gland using a conditional ubiquitous depletion mouse model where long-term depletion does not affect fitness. Using transcriptomic approaches, flow cytometry and functional assays, we show that TRPS1 activity is essential to maintain a functional luminal progenitor compartment. This requires the repression of both YAP/TAZ and SRF/MRTF activities. TRPS1 represses SRF/MRTF activity indirectly by modulating RhoA activity. Our work uncovers a hitherto undisclosed function of TRPS1 in luminal progenitors intrinsically linked to mechanotransduction in the mammary gland. It may also provide new insights into the oncogenic functions of TRPS1 as luminal progenitors are likely the cells of origin of many breast cancers.
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Affiliation(s)
- Marie Tollot-Wegner
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute E.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Marco Jessen
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute E.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - KyungMok Kim
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute E.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Adrián Sanz-Moreno
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, Ingolstaedter Landstr.1, Neuherberg, Germany
| | - Nadine Spielmann
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, Ingolstaedter Landstr.1, Neuherberg, Germany
| | - Valerie Gailus-Durner
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, Ingolstaedter Landstr.1, Neuherberg, Germany
| | - Helmut Fuchs
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, Ingolstaedter Landstr.1, Neuherberg, Germany
| | - Martin Hrabe de Angelis
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, Ingolstaedter Landstr.1, Neuherberg, Germany
- Chair of Experimental Genetics, TUM School of Life Sciences, Technische Universität München, Alte Akademie 8, 85354, Freising, Germany
- German Center for Diabetes Research (DZD), Ingolstaedter Landstraße. 1, 85764, Neuherberg, Germany
| | - Björn von Eyss
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute E.V., Beutenbergstr. 11, 07745, Jena, Germany.
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5
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Essola JM, Zhang M, Yang H, Li F, Xia B, Mavoungou JF, Hussain A, Huang Y. Exosome regulation of immune response mechanism: Pros and cons in immunotherapy. Bioact Mater 2024; 32:124-146. [PMID: 37927901 PMCID: PMC10622742 DOI: 10.1016/j.bioactmat.2023.09.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/06/2023] [Accepted: 09/25/2023] [Indexed: 11/07/2023] Open
Abstract
Due to its multiple features, including the ability to orchestrate remote communication between different tissues, the exosomes are the extracellular vesicles arousing the highest interest in the scientific community. Their size, established as an average of 30-150 nm, allows them to be easily uptaken by most cells. According to the type of cells-derived exosomes, they may carry specific biomolecular cargoes used to reprogram the cells they are interacting with. In certain circumstances, exosomes stimulate the immune response by facilitating or amplifying the release of foreign antigens-killing cells, inflammatory factors, or antibodies (immune activation). Meanwhile, in other cases, they are efficiently used by malignant elements such as cancer cells to mislead the immune recognition mechanism, carrying and transferring their cancerous cargoes to distant healthy cells, thus contributing to antigenic invasion (immune suppression). Exosome dichotomic patterns upon immune system regulation present broad advantages in immunotherapy. Its perfect comprehension, from its early biogenesis to its specific interaction with recipient cells, will promote a significant enhancement of immunotherapy employing molecular biology, nanomedicine, and nanotechnology.
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Affiliation(s)
- Julien Milon Essola
- School of Life Science, Advanced Research Institute of Multidisciplinary Science, School of Medical Technology, Key Laboratory of Molecular Medicine and Biotherapy, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Beijing Institute of Technology, Beijing, 100081, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, No. 11, First North Road, Zhongguancun, Beijing, 100190, PR China
- University of Chinese Academy of Sciences. Beijing 100049, PR China
| | - Mengjie Zhang
- School of Life Science, Advanced Research Institute of Multidisciplinary Science, School of Medical Technology, Key Laboratory of Molecular Medicine and Biotherapy, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Haiyin Yang
- School of Life Science, Advanced Research Institute of Multidisciplinary Science, School of Medical Technology, Key Laboratory of Molecular Medicine and Biotherapy, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Fangzhou Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, No. 11, First North Road, Zhongguancun, Beijing, 100190, PR China
| | - Bozhang Xia
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, No. 11, First North Road, Zhongguancun, Beijing, 100190, PR China
- University of Chinese Academy of Sciences. Beijing 100049, PR China
| | - Jacques François Mavoungou
- Université Internationale de Libreville, Libreville, 20411, Gabon
- Central and West African Virus Epidemiology, Libreville, 2263, Gabon
- Département de phytotechnologies, Institut National Supérieur d’Agronomie et de Biotechnologie, Université des Sciences et Techniques de Masuku, Franceville, 901, Gabon
- Institut de Recherches Agronomiques et Forestiers, Centre National de la Recherche Scientifique et du développement Technologique, Libreville, 16182, Gabon
| | - Abid Hussain
- School of Life Science, Advanced Research Institute of Multidisciplinary Science, School of Medical Technology, Key Laboratory of Molecular Medicine and Biotherapy, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yuanyu Huang
- School of Life Science, Advanced Research Institute of Multidisciplinary Science, School of Medical Technology, Key Laboratory of Molecular Medicine and Biotherapy, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Rigerna Therapeutics Co. Ltd., China
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6
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Tornillo G, Warrington L, Kendrick H, Higgins AT, Hay T, Beck S, Smalley MJ. Conditional in vivo deletion of LYN kinase has little effect on a BRCA1 loss-of-function-associated mammary tumour model. Dis Model Mech 2024; 17:dmm050211. [PMID: 38149669 PMCID: PMC10846530 DOI: 10.1242/dmm.050211] [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: 03/28/2023] [Accepted: 12/15/2023] [Indexed: 12/28/2023] Open
Abstract
LYN kinase is expressed in BRCA1 loss-of-function-dependent mouse mammary tumours, in the cells of origin of such tumours, and in human breast cancer. Suppressing LYN kinase activity in BRCA1-defective cell lines as well as in in vitro cultures of Brca1-null mouse mammary tumours is deleterious to their growth. Here, we examined the interaction between LYN kinase and BRCA1 loss-of-function in an in vivo mouse mammary tumour model, using conditional knockout Brca1 and Lyn alleles. Comparison of Brca1 tumour cohorts showed little difference in mammary tumour formation between animals that were wild type, heterozygous or homozygous for the conditional Lyn allele, although this was confounded by factors including incomplete Lyn recombination in some tumours. RNA-sequencing analysis demonstrated that tumours with high levels of Lyn gene expression had a slower doubling time, but this was not correlated with levels of LYN staining in tumour cells themselves. Rather, high Lyn expression and slower tumour growth were likely a result of B-cell infiltration. The multifaceted role of LYN indicates that it is likely to present difficulties as a therapeutic target in breast cancer.
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Affiliation(s)
- Giusy Tornillo
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
| | - Lauren Warrington
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
| | - Howard Kendrick
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
| | - Adam T. Higgins
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
| | - Trevor Hay
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
| | - Sam Beck
- Independent Anatomic Pathology Ltd, Calyx House, South Road, Taunton TA1 3DU, UK
| | - Matthew J. Smalley
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
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7
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Gray GK, Girnius N, Kuiken HJ, Henstridge AZ, Brugge JS. Single-cell and spatial analyses reveal a tradeoff between murine mammary proliferation and lineage programs associated with endocrine cues. Cell Rep 2023; 42:113293. [PMID: 37858468 PMCID: PMC10840493 DOI: 10.1016/j.celrep.2023.113293] [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: 05/25/2023] [Revised: 08/25/2023] [Accepted: 09/29/2023] [Indexed: 10/21/2023] Open
Abstract
Although distinct epithelial cell types have been distinguished in glandular tissues such as the mammary gland, the extent of heterogeneity within each cell type and the degree of endocrine control of this diversity across development are incompletely understood. By combining mass cytometry and cyclic immunofluorescence, we define a rich array of murine mammary epithelial cell subtypes associated with puberty, the estrous cycle, and sex. These subtypes are differentially proliferative and spatially segregate distinctly in adult versus pubescent glands. Further, we identify systematic suppression of lineage programs at the protein and RNA levels as a common feature of mammary epithelial expansion during puberty, the estrous cycle, and gestation and uncover a pervasive enrichment of ribosomal protein genes in luminal cells elicited specifically during progesterone-dominant expansionary periods. Collectively, these data expand our knowledge of murine mammary epithelial heterogeneity and connect endocrine-driven epithelial expansion with lineage suppression.
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Affiliation(s)
- G Kenneth Gray
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Nomeda Girnius
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA; The Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Hendrik J Kuiken
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Aylin Z Henstridge
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Joan S Brugge
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
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8
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Su Y, Dang NM, Depypere H, Santucci-Pereira J, Gutiérrez-Díez PJ, Kanefsky J, Janssens JP, Russo J. Recombinant human chorionic gonadotropin induces signaling pathways towards cancer prevention in the breast of BRCA1/2 mutation carriers. Eur J Cancer Prev 2023; 32:126-138. [PMID: 35881946 PMCID: PMC9800649 DOI: 10.1097/cej.0000000000000763] [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] [Indexed: 02/04/2023]
Abstract
BACKGROUND Strategies for breast cancer prevention in women with germline BRCA1/2 mutations are limited. We previously showed that recombinant human chorionic gonadotropin (r-hCG) induces mammary gland differentiation and inhibits mammary tumorigenesis in rats. The present study investigated hCG-induced signaling pathways in the breast of young nulliparous women carrying germline BRCA1/2 mutations. METHODS We performed RNA-sequencing on breast tissues from 25 BRCA1/2 mutation carriers who received r-hCG treatment for 3 months in a phase II clinical trial, we analyzed the biological processes, reactome pathways, canonical pathways, and upstream regulators associated with genes differentially expressed after r-hCG treatment, and validated genes of interest. RESULTS We observed that r-hCG induces remarkable transcriptomic changes in the breast of BRCA1/2 carriers, especially in genes related to cell development, cell differentiation, cell cycle, apoptosis, DNA repair, chromatin remodeling, and G protein-coupled receptor signaling. We revealed that r-hCG inhibits Wnt/β-catenin signaling, MYC, HMGA1 , and HOTAIR , whereas activates TGFB/TGFBR-SMAD2/3/4, BRCA1, TP53, and upregulates BRCA1 protein. CONCLUSION Our data suggest that the use of r-hCG at young age may reduce the risk of breast cancer in BRCA1/2 carriers by inhibiting pathways associated with stem/progenitor cell maintenance and neoplastic transformation, whereas activating genes crucial for breast epithelial differentiation and lineage commitment, and DNA repair.
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Affiliation(s)
- Yanrong Su
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
- These authors contributed equally: Yanrong Su, Nhi M. Dang, and Herman Depypere
| | - Nhi M. Dang
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
- These authors contributed equally: Yanrong Su, Nhi M. Dang, and Herman Depypere
| | - Herman Depypere
- Department of Gynecology, Breast and Menopause clinic, University Hospital of Ghent, Corneel Heymanslaan 10, 9000 Ghent, Belgium
- These authors contributed equally: Yanrong Su, Nhi M. Dang, and Herman Depypere
| | - Julia Santucci-Pereira
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
| | | | - Joice Kanefsky
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
| | - Jaak Ph. Janssens
- European Cancer Prevention Organization, University of Hasselt, Klein Hilststraat 5, 3500 Hasselt, Belgium
| | - Jose Russo
- The Irma H Russo, MD, Breast Cancer Research Laboratory at the Fox Chase Cancer Center-Temple Health, 333 Cottman Avenue, Philadelphia, PA 19111, USA
- Dr. Russo conceived the study and supervised the work. Dr. Russo passed away on September 24, 2021
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9
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Klein-Rodewald T, Micklich K, Sanz-Moreno A, Tost M, Calzada-Wack J, Adler T, Klaften M, Sabrautzki S, Aigner B, Kraiger M, Gailus-Durner V, Fuchs H, Gründer A, Pahl H, Wolf E, Hrabe de Angelis M, Rathkolb B, Rozman J, Puk O, Schrewe A, Schulz H, Adamski J, Busch DH, Esposito I, Wurst W, Stoeger C, Gründer A, Pahl H, Wolf E, Hrabe de Angelis M, Rathkolb B. New C3H Kit N824K/WT cancer mouse model develops late-onset malignant mammary tumors with high penetrance. Sci Rep 2022; 12:19793. [PMID: 36396684 PMCID: PMC9671887 DOI: 10.1038/s41598-022-23218-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 10/26/2022] [Indexed: 11/18/2022] Open
Abstract
Gastro-intestinal stromal tumors and acute myeloid leukemia induced by activating stem cell factor receptor tyrosine kinase (KIT) mutations are highly malignant. Less clear is the role of KIT mutations in the context of breast cancer. Treatment success of KIT-induced cancers is still unsatisfactory because of primary or secondary resistance to therapy. Mouse models offer essential platforms for studies on molecular disease mechanisms in basic cancer research. In the course of the Munich N-ethyl-N-nitrosourea (ENU) mutagenesis program a mouse line with inherited polycythemia was established. It carries a base-pair exchange in the Kit gene leading to an amino acid exchange at position 824 in the activation loop of KIT. This KIT variant corresponds to the N822K mutation found in human cancers, which is associated with imatinib-resistance. C3H KitN824K/WT mice develop hyperplasia of interstitial cells of Cajal and retention of ingesta in the cecum. In contrast to previous Kit-mutant models, we observe a benign course of gastrointestinal pathology associated with prolonged survival. Female mutants develop mammary carcinomas at late onset and subsequent lung metastasis. The disease model complements existing oncology research platforms. It allows for addressing the role of KIT mutations in breast cancer and identifying genetic and environmental modifiers of disease progression.
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Affiliation(s)
- Tanja Klein-Rodewald
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Kateryna Micklich
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Adrián Sanz-Moreno
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Monica Tost
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Julia Calzada-Wack
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Thure Adler
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Matthias Klaften
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany ,Present Address: amcure GmbH, Herrman-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sibylle Sabrautzki
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany ,grid.4567.00000 0004 0483 2525Research Unit Comparative Medicine, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Bernhard Aigner
- grid.5252.00000 0004 1936 973XInstitute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Markus Kraiger
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Valerie Gailus-Durner
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Helmut Fuchs
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | | | - Albert Gründer
- grid.7708.80000 0000 9428 7911Section of Molecular Hematology, Department of Hematology/Oncology, Universitäts Klinikum Freiburg, Freiburg, Germany
| | - Heike Pahl
- grid.7708.80000 0000 9428 7911Section of Molecular Hematology, Department of Hematology/Oncology, Universitäts Klinikum Freiburg, Freiburg, Germany
| | - Eckhard Wolf
- grid.5252.00000 0004 1936 973XInstitute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Martin Hrabe de Angelis
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany ,grid.452622.5German Center for Diabetes Research (DZD), Neuherberg, Germany ,grid.6936.a0000000123222966Chair of Experimental Genetics, TUM School of Life Sciences, Technische Universität München, Freising, Germany
| | - Birgit Rathkolb
- grid.4567.00000 0004 0483 2525Institute of Experimental Genetics, German Mouse Clinic, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany ,grid.5252.00000 0004 1936 973XInstitute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany ,grid.452622.5German Center for Diabetes Research (DZD), Neuherberg, Germany
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10
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Tsirigoti C, Ali MM, Maturi V, Heldin CH, Moustakas A. Loss of SNAI1 induces cellular plasticity in invasive triple-negative breast cancer cells. Cell Death Dis 2022; 13:832. [PMID: 36171192 PMCID: PMC9519755 DOI: 10.1038/s41419-022-05280-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 01/23/2023]
Abstract
The transcription factor SNAI1 mediates epithelial-mesenchymal transition, fibroblast activation and controls inter-tissue migration. High SNAI1 expression characterizes metastatic triple-negative breast carcinomas, and its knockout by CRISPR/Cas9 uncovered an epithelio-mesenchymal phenotype accompanied by reduced signaling by the cytokine TGFβ. The SNAI1 knockout cells exhibited plasticity in differentiation, drifting towards the luminal phenotype, gained stemness potential and could differentiate into acinar mammospheres in 3D culture. Loss of SNAI1 de-repressed the transcription factor FOXA1, a pioneering factor of mammary luminal progenitors. FOXA1 induced a specific gene program, including the androgen receptor (AR). Inhibiting AR via a specific antagonist regenerated the basal phenotype and blocked acinar differentiation. Thus, loss of SNAI1 in the context of triple-negative breast carcinoma cells promotes an intermediary luminal progenitor phenotype that gains differentiation plasticity based on the dual transcriptional action of FOXA1 and AR. This function of SNAI1 provides means to separate cell invasiveness from progenitor cell de-differentiation as independent cellular programs.
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Affiliation(s)
- Chrysoula Tsirigoti
- grid.8993.b0000 0004 1936 9457Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, SE-751 23 Uppsala, Sweden
| | - Mohamad Moustafa Ali
- grid.8993.b0000 0004 1936 9457Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, SE-751 23 Uppsala, Sweden
| | - Varun Maturi
- grid.8993.b0000 0004 1936 9457Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, SE-751 23 Uppsala, Sweden ,grid.8993.b0000 0004 1936 9457Department of Pharmacy, Drug Delivery, Uppsala University, SE-752 37 Uppsala, Sweden
| | - Carl-Henrik Heldin
- grid.8993.b0000 0004 1936 9457Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, SE-751 23 Uppsala, Sweden
| | - Aristidis Moustakas
- grid.8993.b0000 0004 1936 9457Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, SE-751 23 Uppsala, Sweden
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Ductal keratin 15 + luminal progenitors in normal breast exhibit a basal-like breast cancer transcriptomic signature. NPJ Breast Cancer 2022; 8:81. [PMID: 35821504 PMCID: PMC9276673 DOI: 10.1038/s41523-022-00444-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 06/10/2022] [Indexed: 11/09/2022] Open
Abstract
Normal breast luminal epithelial progenitors have been implicated as cell of origin in basal-like breast cancer, but their anatomical localization remains understudied. Here, we combine collection under the microscope of organoids from reduction mammoplasties and single-cell mRNA sequencing (scRNA-seq) of FACS-sorted luminal epithelial cells with multicolor imaging to profile ducts and terminal duct lobular units (TDLUs) and compare them with breast cancer subtypes. Unsupervised clustering reveals eleven distinct clusters and a differentiation trajectory starting with keratin 15+ (K15+) progenitors enriched in ducts. Spatial mapping of luminal progenitors is confirmed at the protein level by staining with critical duct markers. Comparison of the gene expression profiles of normal luminal cells with those of breast cancer subtypes suggests a strong correlation between normal breast ductal progenitors and basal-like breast cancer. We propose that K15+ basal-like breast cancers originate in ductal progenitors, which emphasizes the importance of not only lineages but also cellular position within the ductal-lobular tree.
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12
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Wang J, Liu H, Wu X, Shi C, Li W, Yuan Y, Liu Y, Xing D. Induction of apoptosis in SGC-7901 cells by iridium(III) complexes via endoplasmic reticulum stress-mitochondrial dysfunction pathway. J Biol Inorg Chem 2022; 27:455-469. [PMID: 35817878 DOI: 10.1007/s00775-022-01943-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/20/2022] [Indexed: 11/26/2022]
Abstract
This study was intended to evaluate the anticancer activity of three newly synthesized iridium(III) complexes [Ir(ppy)2(PEIP)](PF6) (1) (ppy = 2-phenylpyridine, PEIP = 2-phenethyl-1H-imidazo[4,5-f][1,10]phenanthroline), [Ir(ppy)2(SIP)](PF6) (2) (SIP = (E)-2-styryl-1H-imidazo[4,5-f][1,10]phenanthroline) and [Ir(ppy)2(PEYIP)](PF6) (3) (PEYIP = 2-phenethynyl-1H-imidazo[4,5-f][1,10]phenanthroline). The cytotoxic activity in vitro against A549, SGC-7901, HepG2, HeLa and normal NIH3T3 cells was investigated by 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) method. We found that the complexes 1, 2 and 3 significantly inhibited cell proliferation, in particular, complexes 2 and 3 show high cytotoxic effect on SGC-7901 cells with an IC50 value of 5.8 ± 0.7 and 4.4 ± 0.1 μM. Moreover, cell cycle assay revealed that the complexes could block G2/M phase of the cell cycle. Apoptotic evaluation by Annexin V/PI staining indicated that complexes 1-3 can induce apoptosis in SGC-7901 cells. In addition, microscopy detection suggested that disruption of mitochondrial functions, characterized by increased generation of intracellular ROS and Ca2+ as well as decrease of mitochondrial membrane potential. Western blot analysis shows that the complexes upregulate the expression of pro-apoptotic Bax and downregulate the expression of anti-apoptotic Bcl-2, which further activates caspase-3 and prompts the cleavage of PARP. Taken together, these results demonstrated that complexes 1-3 exert a potent anticancer effect on SGC-7901 cells via ROS-mediated endoplasmic reticulum stress-mitochondrial apoptotic pathway and have a potential to be developed as novel chemotherapeutic agents for human gastric cancer. Three new iridium(III) complexes [Ir(ppy)2(PEIP)](PF6) (1) (ppy = 2-phenylpyridine, PEIP = 2-phenethyl-1H-imidazo[4,5-f][1,10]phenanthroline), [Ir(ppy)2(SIP)](PF6) (2) (SIP = 2-styryl-1H-imidazo[4,5-f][1,10]phenanthroline) and [Ir(ppy)2(PEYIP)](PF6) (3) (PEYIP = 2-phenethynyl-1H-imidazo[4,5-f][1,10]phenanthroline) were synthesized and characterized. The anticancer activity in vitro was investigated by 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) method. The results show that the complexes induce apoptosis via ROS-mediated endoplasmic reticulum stress-mitochondrial dysfunction pathway.
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Affiliation(s)
- Jiawen Wang
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China
| | - Haimei Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China
| | - Xiaoyun Wu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China
| | - Chuanling Shi
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China
| | - Wenlong Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China
| | - Yuhan Yuan
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China.
| | - Degang Xing
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China.
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13
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Single cell transcriptome atlas of mouse mammary epithelial cells across development. Breast Cancer Res 2021; 23:69. [PMID: 34187545 PMCID: PMC8243869 DOI: 10.1186/s13058-021-01445-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/31/2021] [Indexed: 12/20/2022] Open
Abstract
Background Heterogeneity within the mouse mammary epithelium and potential lineage relationships have been recently explored by single-cell RNA profiling. To further understand how cellular diversity changes during mammary ontogeny, we profiled single cells from nine different developmental stages spanning late embryogenesis, early postnatal, prepuberty, adult, mid-pregnancy, late-pregnancy, and post-involution, as well as the transcriptomes of micro-dissected terminal end buds (TEBs) and subtending ducts during puberty. Methods The single cell transcriptomes of 132,599 mammary epithelial cells from 9 different developmental stages were determined on the 10x Genomics Chromium platform, and integrative analyses were performed to compare specific time points. Results The mammary rudiment at E18.5 closely aligned with the basal lineage, while prepubertal epithelial cells exhibited lineage segregation but to a less differentiated state than their adult counterparts. Comparison of micro-dissected TEBs versus ducts showed that luminal cells within TEBs harbored intermediate expression profiles. Ductal basal cells exhibited increased chromatin accessibility of luminal genes compared to their TEB counterparts suggesting that lineage-specific chromatin is established within the subtending ducts during puberty. An integrative analysis of five stages spanning the pregnancy cycle revealed distinct stage-specific profiles and the presence of cycling basal, mixed-lineage, and 'late' alveolar intermediates in pregnancy. Moreover, a number of intermediates were uncovered along the basal-luminal progenitor cell axis, suggesting a continuum of alveolar-restricted progenitor states. Conclusions This extended single cell transcriptome atlas of mouse mammary epithelial cells provides the most complete coverage for mammary epithelial cells during morphogenesis to date. Together with chromatin accessibility analysis of TEB structures, it represents a valuable framework for understanding developmental decisions within the mouse mammary gland. Supplementary Information The online version contains supplementary material available at 10.1186/s13058-021-01445-4.
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14
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Rusidzé M, Adlanmérini M, Chantalat E, Raymond-Letron I, Cayre S, Arnal JF, Deugnier MA, Lenfant F. Estrogen receptor-α signaling in post-natal mammary development and breast cancers. Cell Mol Life Sci 2021; 78:5681-5705. [PMID: 34156490 PMCID: PMC8316234 DOI: 10.1007/s00018-021-03860-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/12/2021] [Accepted: 05/19/2021] [Indexed: 12/16/2022]
Abstract
17β-estradiol controls post-natal mammary gland development and exerts its effects through Estrogen Receptor ERα, a member of the nuclear receptor family. ERα is also critical for breast cancer progression and remains a central therapeutic target for hormone-dependent breast cancers. In this review, we summarize the current understanding of the complex ERα signaling pathways that involve either classical nuclear “genomic” or membrane “non-genomic” actions and regulate in concert with other hormones the different stages of mammary development. We describe the cellular and molecular features of the luminal cell lineage expressing ERα and provide an overview of the transgenic mouse models impacting ERα signaling, highlighting the pivotal role of ERα in mammary gland morphogenesis and function and its implication in the tumorigenic processes. Finally, we describe the main features of the ERα-positive luminal breast cancers and their modeling in mice.
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Affiliation(s)
- Mariam Rusidzé
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France
| | - Marine Adlanmérini
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France
| | - Elodie Chantalat
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France
| | - I Raymond-Letron
- LabHPEC et Institut RESTORE, Université de Toulouse, CNRS U-5070, EFS, ENVT, Inserm U1301, Toulouse, France
| | - Surya Cayre
- Department of Cell Biology and Cancer, Institut Curie, PSL Research University, Sorbonne University, CNRS UMR144, Paris, France
| | - Jean-François Arnal
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France
| | - Marie-Ange Deugnier
- Department of Cell Biology and Cancer, Institut Curie, PSL Research University, Sorbonne University, CNRS UMR144, Paris, France
| | - Françoise Lenfant
- INSERM U1297, Institut Des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse - UPS, CHU, Toulouse, France.
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15
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Ordonez LD, Melchor L, Greenow KR, Kendrick H, Tornillo G, Bradford J, Giles P, Smalley MJ. Reproductive history determines Erbb2 locus amplification, WNT signalling and tumour phenotype in a murine breast cancer model. Dis Model Mech 2021; 14:264801. [PMID: 34003256 PMCID: PMC8188886 DOI: 10.1242/dmm.048736] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/25/2021] [Indexed: 11/20/2022] Open
Abstract
Understanding the mechanisms underlying tumour heterogeneity is key to the development of treatments that can target specific tumour subtypes. We have previously targeted CRE recombinase-dependent conditional deletion of the tumour suppressor genes Brca1, Brca2, p53 (also known as Trp53) and/or Pten to basal or luminal oestrogen receptor-negative (ER−) cells of the mouse mammary epithelium. We demonstrated that both the cell-of-origin and the tumour-initiating genetic lesions cooperate to influence mammary tumour phenotype. Here, we use a CRE-activated HER2 orthologue to specifically target HER2/ERBB2 oncogenic activity to basal or luminal ER− mammary epithelial cells and perform a detailed analysis of the tumours that develop. We find that, in contrast to our previous studies, basal epithelial cells are less sensitive to transformation by the activated NeuKI allele, with mammary epithelial tumour formation largely confined to luminal ER− cells. Histologically, most tumours that developed were classified as either adenocarcinomas of no special type or as metaplastic adenosquamous tumours. The former were typically characterized by amplification of the NeuNT/Erbb2 locus; in contrast, tumours displaying squamous metaplasia were enriched in animals that had been through at least one pregnancy and typically had lower levels of NeuNT/Erbb2 locus amplification but had activated canonical WNT signalling. Squamous changes in these tumours were associated with activation of the epidermal differentiation cluster. Thus, in this model of HER2 breast cancer, cell-of-origin, reproductive history, NeuNT/Erbb2 locus amplification and the activation of specific branches of the WNT signalling pathway all interact to drive inter-tumour heterogeneity. Summary: Using a mouse model of breast cancer, the authors show mammary epithelial cell-type sensitivity to transformation by HER2, as well as a change in tumour phenotype associated with reproductive history and driven by WNT signalling.
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Affiliation(s)
- Liliana D Ordonez
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Lorenzo Melchor
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Kirsty R Greenow
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Howard Kendrick
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Giusy Tornillo
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | | | - Peter Giles
- Wales Gene Park, University Hospital Wales, Heath Park, Cardiff CF14 4XW, UK
| | - Matthew J Smalley
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
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16
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Mayo V, Bowles AC, Wubker LE, Ortiz I, Cordoves AM, Cote RJ, Correa D, Agarwal A. Human-derived osteoblast-like cells and pericyte-like cells induce distinct metastatic phenotypes in primary breast cancer cells. Exp Biol Med (Maywood) 2021; 246:971-985. [PMID: 33210551 PMCID: PMC8024509 DOI: 10.1177/1535370220971599] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/15/2020] [Indexed: 02/06/2023] Open
Abstract
Approximately 70% of advanced breast cancer patients will develop bone metastases, which accounts for ∼90% of cancer-related mortality. Breast cancer circulating tumor cells (CTCs) establish metastatic tumors in the bone after a close interaction with local bone marrow cells including pericytes and osteoblasts, both related to resident mesenchymal stem/stromal cells (BM-MSCs) progenitors. In vitro recapitulation of the critical cellular players of the bone microenvironment and infiltrating CTCs could provide new insights into their cross-talk during the metastatic cascade, helping in the development of novel therapeutic strategies. Human BM-MSCs were isolated and fractionated according to CD146 presence. CD146+ cells were utilized as pericyte-like cells (PLCs) given the high expression of the marker in perivascular cells, while CD146- cells were induced into an osteogenic phenotype generating osteoblast-like cells (OLCs). Transwell migration assays were performed to establish whether primary breast cancer cells (3384T) were attracted to OLC. Furthermore, proliferation of 3384T breast cancer cells was assessed in the presence of PLC- and OLC-derived conditioned media. Additionally, conditioned media cultures as well as transwell co-cultures of each OLCs and PLCs were performed with 3384T breast cancer cells for gene expression interrogation assessing their induced transcriptional changes with an emphasis on metastatic potential. PLC as well as their conditioned media increased motility and invasion potential of 3384T breast cancer cells, while OLC induced a dormant phenotype, downregulating invasiveness markers related with migration and proliferation. Altogether, these results indicate that PLC distinctively drive 3384T cancer cells to an invasive and migratory phenotype, while OLC induce a quiescence state, thus recapitulating the different phases of the in vivo bone metastatic process. These data show that phenotypic responses from metastasizing cancer cells are influenced by neighboring cells at the bone metastatic niche during the establishment of secondary metastatic tumors.
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Affiliation(s)
- Vera Mayo
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
| | - Annie C Bowles
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
- Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami, Miller School of Medicine, Miami, FL 33136, USA
- Diabetes Research Institute & Cell Transplant Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Laura E Wubker
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
| | - Ismael Ortiz
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
| | - Albert M Cordoves
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
| | - Richard J Cote
- Department of Pathology and Immunology, Washington University in St. Louis School of Medicine, St Louis, MO 63110, USA
| | - Diego Correa
- Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami, Miller School of Medicine, Miami, FL 33136, USA
- Diabetes Research Institute & Cell Transplant Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Ashutosh Agarwal
- Department of Biomedical Engineering, DJTMF Biomedical Nanotechnology Institute, University of Miami, Miami, FL 33146, USA
- Diabetes Research Institute & Cell Transplant Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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17
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Gross KM, Zhou W, Breindel JL, Ouyang J, Jin DX, Sokol ES, Gupta PB, Huber K, Zou L, Kuperwasser C. Loss of Slug Compromises DNA Damage Repair and Accelerates Stem Cell Aging in Mammary Epithelium. Cell Rep 2020; 28:394-407.e6. [PMID: 31291576 DOI: 10.1016/j.celrep.2019.06.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 04/16/2019] [Accepted: 06/11/2019] [Indexed: 12/27/2022] Open
Abstract
DNA damage activates checkpoints that limit the replicative potential of stem cells, including differentiation. These checkpoints protect against cancer development but also promote tissue aging. Because mice lacking Slug/Snai2 exhibit limited stem cell activity, including luminobasal differentiation, and are protected from mammary cancer, we reasoned that Slug might regulate DNA damage checkpoints in mammary epithelial cells. Here, we show that Slug facilitates efficient execution of RPA32-mediated DNA damage response (DDR) signaling. Slug deficiency leads to delayed phosphorylation of ataxia telangiectasia mutated and Rad3-related protein (ATR) and its effectors RPA32 and CHK1. This leads to impaired RAD51 recruitment to DNA damage sites and persistence of unresolved DNA damage. In vivo, Slug/Snai2 loss leads to increased DNA damage and premature aging of mammary epithelium. Collectively, our work demonstrates that the mammary stem cell regulator Slug controls DDR checkpoints by dually inhibiting differentiation and facilitating DDR repair, and its loss causes unresolved DNA damage and accelerated aging.
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Affiliation(s)
- Kayla M Gross
- Department of Developmental, Molecular, & Chemical Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA; Raymond and Beverly Sackler Convergence Laboratory, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Wenhui Zhou
- Department of Developmental, Molecular, & Chemical Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA; Raymond and Beverly Sackler Convergence Laboratory, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Jerrica L Breindel
- Department of Biomedical Sciences, Quinnipiac University, Hamden, CT 06518, USA
| | - Jian Ouyang
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA 02129, USA
| | - Dexter X Jin
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Ethan S Sokol
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Piyush B Gupta
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Kathryn Huber
- Department of Radiation Oncology, Tufts Medical Center, Boston, MA 02111, USA
| | - Lee Zou
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA 02129, USA
| | - Charlotte Kuperwasser
- Department of Developmental, Molecular, & Chemical Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA; Raymond and Beverly Sackler Convergence Laboratory, Tufts University School of Medicine, Boston, MA 02111, USA.
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18
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Geng A, Wu T, Cai C, Song W, Wang J, Yu QC, Zeng YA. A novel function of R-spondin1 in regulating estrogen receptor expression independent of Wnt/β-catenin signaling. eLife 2020; 9:56434. [PMID: 32749219 PMCID: PMC7402675 DOI: 10.7554/elife.56434] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 07/21/2020] [Indexed: 12/29/2022] Open
Abstract
R-spondin1 (Rspo1) has been featured as a Wnt agonist, serving as a potent niche factor for stem cells in many tissues. Here we unveil a novel role of Rspo1 in promoting estrogen receptor alpha (Esr1) expression, hence regulating the output of steroid hormone signaling in the mouse mammary gland. This action of Rspo1 relies on the receptor Lgr4 and intracellular cAMP-PKA signaling, yet is independent of Wnt/β-catenin signaling. These mechanisms were reinforced by genetic evidence. Luminal cells-specific knockout of Rspo1 results in decreased Esr1 expression and reduced mammary side branches. In contrast, luminal cells-specific knockout of Wnt4, while attenuating basal cell Wnt/β-catenin signaling activities, enhances Esr1 expression. Our data reveal a novel Wnt-independent role of Rspo1, in which Rspo1 acts as a bona fide GPCR activator eliciting intracellular cAMP signaling. The identification of Rspo1-ERα signaling axis may have a broad implication in estrogen-associated diseases.
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Affiliation(s)
- Ajun Geng
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Shanghai, China
| | - Ting Wu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Shanghai, China
| | - Cheguo Cai
- Medical Research Institute, Wuhan University, Wuhan, China
| | - Wenqian Song
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Shanghai, China
| | - Jiqiu Wang
- Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai, China
| | - Qing Cissy Yu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Shanghai, China
| | - Yi Arial Zeng
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Shanghai, China.,School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou, China
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19
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Regan JL, Smalley MJ. Integrating single-cell RNA-sequencing and functional assays to decipher mammary cell states and lineage hierarchies. NPJ Breast Cancer 2020; 6:32. [PMID: 32793804 PMCID: PMC7391676 DOI: 10.1038/s41523-020-00175-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 07/02/2020] [Indexed: 12/13/2022] Open
Abstract
The identification and molecular characterization of cellular hierarchies in complex tissues is key to understanding both normal cellular homeostasis and tumorigenesis. The mammary epithelium is a heterogeneous tissue consisting of two main cellular compartments, an outer basal layer containing myoepithelial cells and an inner luminal layer consisting of estrogen receptor-negative (ER−) ductal cells and secretory alveolar cells (in the fully functional differentiated tissue) and hormone-responsive estrogen receptor-positive (ER+) cells. Recent publications have used single-cell RNA-sequencing (scRNA-seq) analysis to decipher epithelial cell differentiation hierarchies in human and murine mammary glands, and reported the identification of new cell types and states based on the expression of the luminal progenitor cell marker KIT (c-Kit). These studies allow for comprehensive and unbiased analysis of the different cell types that constitute a heterogeneous tissue. Here we discuss scRNA-seq studies in the context of previous research in which mammary epithelial cell populations were molecularly and functionally characterized, and identified c-Kit+ progenitors and cell states analogous to those reported in the recent scRNA-seq studies.
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Affiliation(s)
- Joseph L Regan
- Charité Comprehensive Cancer Centre, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Matthew J Smalley
- European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Wales, CF24 4HQ UK
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20
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High-Dimensional Phenotyping Identifies Age-Emergent Cells in Human Mammary Epithelia. Cell Rep 2019; 23:1205-1219. [PMID: 29694896 PMCID: PMC5946804 DOI: 10.1016/j.celrep.2018.03.114] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/19/2018] [Accepted: 03/25/2018] [Indexed: 12/21/2022] Open
Abstract
Aging is associated with tissue-level changes in cellular composition that are correlated with increased susceptibility to disease. Aging human mammary tissue shows skewed progenitor cell potency, resulting in diminished tumor-suppressive cell types and the accumulation of defective epithelial progenitors. Quantitative characterization of these age-emergent human cell subpopulations is lacking, impeding our understanding of the relationship between age and cancer susceptibility. We conducted single-cell resolution proteomic phenotyping of healthy breast epithelia from 57 women, aged 16–91 years, using mass cytometry. Remarkable heterogeneity was quantified within the two mammary epithelial lineages. Population partitioning identified a subset of aberrant basal-like luminal cells that accumulate with age and originate from age-altered progenitors. Quantification of age-emergent phenotypes enabled robust classification of breast tissues by age in healthy women. This high-resolution mapping highlighted specific epithelial subpopulations that change with age in a manner consistent with increased susceptibility to breast cancer. CyTOF analysis reveals human mammary epithelial heterogeneity with age Age-emergent luminal cells share phenotypes with candidate breast cancer cells of origin Classification models correctly assign tissue samples to their age group Age-related changes are conserved between mammary epithelial tissue and primary cells
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21
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Basal-like Breast Cancers: From Pathology to Biology and Back Again. Stem Cell Reports 2019; 10:1676-1686. [PMID: 29874626 PMCID: PMC6117459 DOI: 10.1016/j.stemcr.2018.04.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 04/23/2018] [Accepted: 04/25/2018] [Indexed: 12/17/2022] Open
Abstract
Human breast cancers referred to as "basal-like" are of interest because they lack effective therapies and their biology is poorly understood. The term basal-like derives from studies demonstrating tumor gene expression profiles that include some transcripts characteristic of the basal cells of the normal adult human mammary gland and others associated with a subset of normal luminal cells. Elucidating the mechanisms responsible for the profiles of basal-like tumors is an active area of investigation. More refined molecular analysis of patients' samples and genetic strategies to produce breast cancers de novo from defined populations of normal mouse mammary cells have served as complementary approaches to identify relevant pathway alterations. However, both also have limitations. Here, we review some of the underlying reasons, including the unifying concept that some normal luminal cells have both luminal and basal features, as well as some emerging new avenues of investigation.
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22
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Samocha A, Doh H, Kessenbrock K, Roose JP. Unraveling Heterogeneity in Epithelial Cell Fates of the Mammary Gland and Breast Cancer. Cancers (Basel) 2019; 11:E1423. [PMID: 31554261 PMCID: PMC6826786 DOI: 10.3390/cancers11101423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/22/2019] [Accepted: 09/22/2019] [Indexed: 12/14/2022] Open
Abstract
Fluidity in cell fate or heterogeneity in cell identity is an interesting cell biological phenomenon, which at the same time poses a significant obstacle for cancer therapy. The mammary gland seems a relatively straightforward organ with stromal cells and basal- and luminal- epithelial cell types. In reality, the epithelial cell fates are much more complex and heterogeneous, which is the topic of this review. Part of the complexity comes from the dynamic nature of this organ: the primitive epithelial tree undergoes extensively remodeling and expansion during puberty, pregnancy, and lactation and, unlike most other organs, the bulk of mammary gland development occurs late, during puberty. An active cell biological debate has focused on lineage commitment to basal- and luminal- epithelial cell fates by epithelial progenitor and stem cells; processes that are also relevant to cancer biology. In this review, we discuss the current understanding of heterogeneity in mammary gland and recent insights obtained through lineage tracing, signaling assays, and organoid cultures. Lastly, we relate these insights to cancer and ongoing efforts to resolve heterogeneity in breast cancer with single-cell RNAseq approaches.
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Affiliation(s)
- Alexandr Samocha
- Department of Anatomy, University of California, San Francisco, CA 94143, USA.
| | - Hanna Doh
- Department of Anatomy, University of California, San Francisco, CA 94143, USA.
| | - Kai Kessenbrock
- Department of Biological Chemistry, University of California, Irvine, CA 92697, USA.
| | - Jeroen P Roose
- Department of Anatomy, University of California, San Francisco, CA 94143, USA.
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23
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Fu NY, Nolan E, Lindeman GJ, Visvader JE. Stem Cells and the Differentiation Hierarchy in Mammary Gland Development. Physiol Rev 2019; 100:489-523. [PMID: 31539305 DOI: 10.1152/physrev.00040.2018] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The mammary gland is a highly dynamic organ that undergoes profound changes within its epithelium during puberty and the reproductive cycle. These changes are fueled by dedicated stem and progenitor cells. Both short- and long-lived lineage-restricted progenitors have been identified in adult tissue as well as a small pool of multipotent mammary stem cells (MaSCs), reflecting intrinsic complexity within the epithelial hierarchy. While unipotent progenitor cells predominantly execute day-to-day homeostasis and postnatal morphogenesis during puberty and pregnancy, multipotent MaSCs have been implicated in coordinating alveologenesis and long-term ductal maintenance. Nonetheless, the multipotency of stem cells in the adult remains controversial. The advent of large-scale single-cell molecular profiling has revealed striking changes in the gene expression landscape through ontogeny and the presence of transient intermediate populations. An increasing number of lineage cell-fate determination factors and potential niche regulators have now been mapped along the hierarchy, with many implicated in breast carcinogenesis. The emerging diversity among stem and progenitor populations of the mammary epithelium is likely to underpin the heterogeneity that characterizes breast cancer.
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Affiliation(s)
- Nai Yang Fu
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore, Singapore; Tumour-Host Interaction Laboratory, Francis Crick Institute, London, United Kingdom; Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Department of Medicine, The University of Melbourne, Parkville, Victoria, Australia; Royal Melbourne Hospital and Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; and Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Emma Nolan
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore, Singapore; Tumour-Host Interaction Laboratory, Francis Crick Institute, London, United Kingdom; Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Department of Medicine, The University of Melbourne, Parkville, Victoria, Australia; Royal Melbourne Hospital and Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; and Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Geoffrey J Lindeman
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore, Singapore; Tumour-Host Interaction Laboratory, Francis Crick Institute, London, United Kingdom; Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Department of Medicine, The University of Melbourne, Parkville, Victoria, Australia; Royal Melbourne Hospital and Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; and Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
| | - Jane E Visvader
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore, Singapore; Tumour-Host Interaction Laboratory, Francis Crick Institute, London, United Kingdom; Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Department of Medicine, The University of Melbourne, Parkville, Victoria, Australia; Royal Melbourne Hospital and Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; and Department of Medical Biology, The University of Melbourne, Parkville, Victoria, Australia
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24
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Tharmapalan P, Mahendralingam M, Berman HK, Khokha R. Mammary stem cells and progenitors: targeting the roots of breast cancer for prevention. EMBO J 2019; 38:e100852. [PMID: 31267556 PMCID: PMC6627238 DOI: 10.15252/embj.2018100852] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 03/11/2019] [Accepted: 04/11/2019] [Indexed: 12/24/2022] Open
Abstract
Breast cancer prevention is daunting, yet not an unsurmountable goal. Mammary stem and progenitors have been proposed as the cells-of-origin in breast cancer. Here, we present the concept of limiting these breast cancer precursors as a risk reduction approach in high-risk women. A wealth of information now exists for phenotypic and functional characterization of mammary stem and progenitor cells in mouse and human. Recent work has also revealed the hormonal regulation of stem/progenitor dynamics as well as intrinsic lineage distinctions between mammary epithelial populations. Leveraging these insights, molecular marker-guided chemoprevention is an achievable reality.
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Affiliation(s)
| | - Mathepan Mahendralingam
- Princess Margaret Cancer CentreUniversity Health NetworkUniversity of TorontoTorontoONCanada
| | - Hal K Berman
- Princess Margaret Cancer CentreUniversity Health NetworkUniversity of TorontoTorontoONCanada
| | - Rama Khokha
- Princess Margaret Cancer CentreUniversity Health NetworkUniversity of TorontoTorontoONCanada
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25
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Srivastava M, Eidelman O, Craig J, Starr J, Kvecher L, Liu J, Hueman M, Pollard HB, Hu H, Shriver CD. Serum Biomarkers for Racial Disparities in Breast Cancer Progression. Mil Med 2019; 184:652-657. [PMID: 30901475 DOI: 10.1093/milmed/usy417] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/09/2018] [Indexed: 01/06/2023] Open
Abstract
African American (AA) women are often diagnosed with more aggressive breast cancers and have worse survival outcomes than their Caucasian American (CA) counterparts. However, a comprehensive understanding of this disparity remains unclear. In this study, we attempted to identify the race-specific non-invasive protein biomarkers that may particularly benefit interventions aimed at reducing the risk of recurrence and metastasis in breast cancers (BrCa). Our technical strategy has been to discover candidate protein biomarkers in patient sera using a high throughput antibody microarray platform. A total of 240 subjects were selected, composed of controls and all immunohistochemistry-based subtypes of breast cancer cases, subdivided by pre- and post-menopausal status and by race. A global Wilcoxon analysis comparing no-cancer controls and cancer patients identified Pyk2, SAPK/JNK, and phosphatase and tensin homolog as present in higher concentrations in cancer patient serum. A paired t-test revealed that c-kit and Rb are significantly over-represented in AA cancer serum when compared to CA cancer serum. Interestingly, VEGFR2, a protein linked to BrCa metastasis and poor prognosis, was significantly over-represented in AA cancer serum compared to AA controls; however, this was not found in CA cancer serum compared to CA controls, suggesting a possible explanation for the higher incidence of aggressive BrCa in AA versus CA patients. Through examining race-specific differences in the protein landscape of BrCa patient serum, the identified proteins could lay the groundwork for the development of an all-inclusive "liquid mammogram test."
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Affiliation(s)
- Meera Srivastava
- Department of Anatomy, Physiology and Genetics, and Collaborative Health Initiative Research Program, Uniformed Services University Health Sciences, 4301 Jones Bridge Road, Bethesda, MD
| | - Ofer Eidelman
- Department of Anatomy, Physiology and Genetics, and Collaborative Health Initiative Research Program, Uniformed Services University Health Sciences, 4301 Jones Bridge Road, Bethesda, MD
| | - James Craig
- Chan Soon-Shiong Institute of Molecular Medicine, 620 7th St, Windber, PA
| | - Joshua Starr
- Department of Anatomy, Physiology and Genetics, and Collaborative Health Initiative Research Program, Uniformed Services University Health Sciences, 4301 Jones Bridge Road, Bethesda, MD
| | - Leonid Kvecher
- Chan Soon-Shiong Institute of Molecular Medicine, 620 7th St, Windber, PA
| | - Jianfang Liu
- Chan Soon-Shiong Institute of Molecular Medicine, 620 7th St, Windber, PA
| | - Matthew Hueman
- Murtha Cancer Center, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD
| | - Harvey B Pollard
- Department of Anatomy, Physiology and Genetics, and Collaborative Health Initiative Research Program, Uniformed Services University Health Sciences, 4301 Jones Bridge Road, Bethesda, MD
| | - Hai Hu
- Chan Soon-Shiong Institute of Molecular Medicine, 620 7th St, Windber, PA
| | - Craig D Shriver
- Murtha Cancer Center, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD
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26
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Tarulli GA, Laven-Law G, Shehata M, Walters KA, Denis IM, Rahman MM, Handelsman DJ, Dean NR, Tilley WD, Hickey TE. Androgen Receptor Signalling Promotes a Luminal Phenotype in Mammary Epithelial Cells. J Mammary Gland Biol Neoplasia 2019; 24:99-108. [PMID: 30099649 DOI: 10.1007/s10911-018-9406-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 07/18/2018] [Indexed: 01/11/2023] Open
Abstract
Androgens influence mammary gland development but the specific role of the androgen receptor (AR) in mammary function is largely unknown. We identified cell subsets that express AR in vivo and determined the effect of AR activation and transgenic AR inhibition on sub-populations of the normal mouse mammary epithelium by flow cytometry and immunohistochemistry. Immunolocalisation of AR with markers of lineage identity was also performed in human breast tissues. AR activation in vivo significantly decreased the proportion of basal cells, and caused an accumulation of cells that expressed a basal cell marker but exhibited morphological features of luminal identity. Conversely, in AR null mice the proportion of basal mammary epithelial cells was significantly increased. Inhibition of AR increased basal but not luminal progenitor cell activity in vitro. A small population of AR-positive cells in a basal-to-luminal phenotype transition was also evident in human breast lobules. Collectively, these data support a role for AR in promoting a luminal phenotype in mammary epithelial cells.
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Affiliation(s)
- Gerard A Tarulli
- Dame Roma Mitchell Cancer Research Laboratories, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia.
- School of BioSciences, The University of Melbourne, Parkville, Victoria, 3052, Australia.
| | - Geraldine Laven-Law
- Dame Roma Mitchell Cancer Research Laboratories, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Mona Shehata
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, M5G 1L7, Canada
| | - Kirsty A Walters
- Discipline of Obstetrics & Gynaecology, School of Women's & Children's Health, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Iza M Denis
- Dame Roma Mitchell Cancer Research Laboratories, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Md Mostafizur Rahman
- Dame Roma Mitchell Cancer Research Laboratories, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - David J Handelsman
- Andrology Laboratory, ANZAC Research Institute, University of Sydney, Sydney, New South Wales, 2139, Australia
| | - Nicola R Dean
- Department of Plastic & Reconstructive Surgery, Flinders Medical Centre/Flinders University, Bedford Park, SA, 5042, Australia
| | - Wayne D Tilley
- Dame Roma Mitchell Cancer Research Laboratories, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Theresa E Hickey
- Dame Roma Mitchell Cancer Research Laboratories, Faculty of Health & Medical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia.
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27
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Sox10 Regulates Plasticity of Epithelial Progenitors toward Secretory Units of Exocrine Glands. Stem Cell Reports 2019; 12:366-380. [PMID: 30713042 PMCID: PMC6373627 DOI: 10.1016/j.stemcr.2019.01.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 12/16/2022] Open
Abstract
Understanding how epithelial progenitors within exocrine glands establish specific cell lineages and form complex functional secretory units is vital for organ regeneration. Here we identify the transcription factor Sox10 as essential for both the maintenance and differentiation of epithelial KIT+FGFR2b+ progenitors into secretory units, containing acinar, myoepithelial, and intercalated duct cells. The KIT/FGFR2b-Sox10 axis marks the earliest multi-potent and tissue-specific progenitors of exocrine glands. Genetic deletion of epithelial Sox10 leads to loss of secretory units, which reduces organ size and function, but the ductal tree is retained. Intriguingly, the remaining duct progenitors do not compensate for loss of Sox10 and lack plasticity to properly form secretory units. However, overexpression of Sox10 in these ductal progenitors enhances their plasticity toward KIT+ progenitors and induces differentiation into secretory units. Therefore, Sox10 controls plasticity and multi-potency of epithelial KIT+ cells in secretory organs, such as mammary, lacrimal, and salivary glands. Sox10 marks the initial multi-potent KIT+ progenitors of exocrine glandular tissues KIT+ progenitors require Sox10 for their maintenance Sox10 is necessary for proper lineage development of secretory units Sox10 is sufficient to induce cell plasticity in non-KIT+ epithelial cells
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28
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Tornillo G, Knowlson C, Kendrick H, Cooke J, Mirza H, Aurrekoetxea-Rodríguez I, Vivanco MDM, Buckley NE, Grigoriadis A, Smalley MJ. Dual Mechanisms of LYN Kinase Dysregulation Drive Aggressive Behavior in Breast Cancer Cells. Cell Rep 2018; 25:3674-3692.e10. [PMID: 30590041 PMCID: PMC6315108 DOI: 10.1016/j.celrep.2018.11.103] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 10/27/2018] [Accepted: 11/29/2018] [Indexed: 12/31/2022] Open
Abstract
The SRC-family kinase LYN is highly expressed in triple-negative/basal-like breast cancer (TNBC) and in the cell of origin of these tumors, c-KIT-positive luminal progenitors. Here, we demonstrate LYN is a downstream effector of c-KIT in normal mammary cells and protective of apoptosis upon genotoxic stress. LYN activity is modulated by PIN1, a prolyl isomerase, and in BRCA1 mutant TNBC PIN1 upregulation activates LYN independently of c-KIT. Furthermore, the full-length LYN splice isoform (as opposed to the Δaa25-45 variant) drives migration and invasion of aggressive TNBC cells, while the ratio of splice variants is informative for breast cancer-specific survival across all breast cancers. Thus, dual mechanisms-uncoupling from upstream signals and splice isoform ratios-drive the activity of LYN in aggressive breast cancers.
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Affiliation(s)
- Giusy Tornillo
- European Cancer Stem Cell Research Institute, School of Biosciences, Hadyn Ellis Building, Cardiff University, Cardiff CF24 4HQ, UK
| | - Catherine Knowlson
- Centre for Cancer Research and Cell Biology, Queens University Belfast, 97 Lisburn Rd, Belfast BT9 7AE, UK
| | - Howard Kendrick
- European Cancer Stem Cell Research Institute, School of Biosciences, Hadyn Ellis Building, Cardiff University, Cardiff CF24 4HQ, UK
| | - Joe Cooke
- European Cancer Stem Cell Research Institute, School of Biosciences, Hadyn Ellis Building, Cardiff University, Cardiff CF24 4HQ, UK
| | - Hasan Mirza
- School of Cancer & Pharmaceutical Sciences, CRUK King's Health Partners Centre, King's College London, Innovation Hub, Comprehensive Cancer Centre at Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | | | - Maria D M Vivanco
- Center for Cooperative Research in Biosciences, CIC bioGUNE, 48160 Derio, Spain
| | - Niamh E Buckley
- School of Pharmacy and Centre for Cancer Research and Cell Biology, Queens University Belfast, 97 Lisburn Rd, Belfast BT9 7AE, UK
| | - Anita Grigoriadis
- School of Cancer & Pharmaceutical Sciences, CRUK King's Health Partners Centre, King's College London, Innovation Hub, Comprehensive Cancer Centre at Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - Matthew J Smalley
- European Cancer Stem Cell Research Institute, School of Biosciences, Hadyn Ellis Building, Cardiff University, Cardiff CF24 4HQ, UK.
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29
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Kim J, Villadsen R. Expression of Luminal Progenitor Marker CD117 in the Human Breast Gland. J Histochem Cytochem 2018; 66:879-888. [PMID: 30004288 DOI: 10.1369/0022155418788845] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
CD117 is a putative marker of luminal progenitor cells in the human breast. However, so far mapping the expression pattern of CD117 within the normal gland has not been reported. Here, we examined the anatomical distribution of CD117-expressing cells in lobular and ductal structures by immunohistochemistry. The presence of CD117-positive luminal cells could be divided into three distinct patterns: (1) contiguous, with coherent positive cells and rare negative cells interspaced; (2) patched, with a roughly equal frequency of positive and negative cells distributed focally; or (3) scattered, with few or no positive cells in the structure. Generally, a patched or scattered expression pattern was more frequent in lobules compared with ducts. Furthermore, an age-correlated increase in heterogeneity was observed. When comparing women below and above 21 years of age this heterogeneity was evident for both lobules and ducts. Although CD117-expression was generally segregated from luminal-lineage transcription factor GATA3-positive cells, some did co-express both markers. Finally, co-staining with Ki-67 revealed that a prominent part of cycling cells belonged to the CD117-positive population. Together these data demonstrate the presence of a CD117-expressing progenitor compartment with the capacity to replenish the luminal lineage of the breast gland.
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Affiliation(s)
- Jiyoung Kim
- Department of Cellular and Molecular Medicine, and Novo Nordisk Center for Stem Cell Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - René Villadsen
- Department of Cellular and Molecular Medicine, and Novo Nordisk Center for Stem Cell Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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30
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31
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Banerjee A, Arvinrad P, Darley M, Laversin SA, Parker R, Rose-Zerilli MJ, Townsend PA, Cutress RI, Beers SA, Houghton FD, Birts CN, Blaydes JP. The effects of restricted glycolysis on stem-cell like characteristics of breast cancer cells. Oncotarget 2018; 9:23274-23288. [PMID: 29796188 PMCID: PMC5955399 DOI: 10.18632/oncotarget.25299] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/08/2018] [Indexed: 12/19/2022] Open
Abstract
Altered glycolysis is a characteristic of many cancers, and can also be associated with changes in stem cell-like cancer (SCLC) cell populations. We therefore set out to directly examine the effect of glycolysis on SCLC cell phenotype, using a model where glycolysis is stably reduced by adapting the cells to a sugar source other than glucose. Restricting glycolysis using this approach consistently resulted in cells with increased oncogenic potential; including an increase in SCLC cells, proliferation in 3D matrigel, invasiveness, chemoresistance, and altered global gene expression. Tumorigenicity in vivo was also markedly increased. SCLC cells exhibited increased dependence upon alternate metabolic pathways. They also became c-KIT dependent, indicating that their apparent state of maturation is regulated by glycolysis. Single-cell mRNA sequencing identified altered networks of metabolic-, stem- and signaling- gene expression within SCLC-enriched populations in response to glycolytic restriction. Therefore, reduced glycolysis, which may occur in niches within tumors where glucose availability is limiting, can promote tumor aggressiveness by increasing SCLC cell populations, but can also introduce novel, potentially exploitable, vulnerabilities in SCLC cells.
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Affiliation(s)
- Arindam Banerjee
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
| | - Pardis Arvinrad
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- Centre for Human Development, Stem Cells & Regeneration, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
| | - Matthew Darley
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
| | - Stéphanie A. Laversin
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- Antibody & Vaccine Group, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
| | - Rachel Parker
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
| | - Matthew J.J. Rose-Zerilli
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - Paul A. Townsend
- Division of Molecular and Clinical Cancer Sciences, Manchester Cancer Research Centre, Manchester Academic Health Science Centre, University of Manchester, Manchester, M20 4QL, UK
| | - Ramsey I. Cutress
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- University Hospital Southampton, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - Stephen A. Beers
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- Antibody & Vaccine Group, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
| | - Franchesca D. Houghton
- Centre for Human Development, Stem Cells & Regeneration, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - Charles N. Birts
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - Jeremy P. Blaydes
- Cancer Sciences Unit, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK
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Van Keymeulen A, Fioramonti M, Centonze A, Bouvencourt G, Achouri Y, Blanpain C. Lineage-Restricted Mammary Stem Cells Sustain the Development, Homeostasis, and Regeneration of the Estrogen Receptor Positive Lineage. Cell Rep 2018; 20:1525-1532. [PMID: 28813665 PMCID: PMC5575359 DOI: 10.1016/j.celrep.2017.07.066] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 05/30/2017] [Accepted: 07/24/2017] [Indexed: 01/07/2023] Open
Abstract
The mammary gland (MG) is composed of different cell lineages, including the basal and the luminal cells (LCs) that are maintained by distinct stem cell (SC) populations. LCs can be subdivided into estrogen receptor (ER)+ and ER− cells. LCs act as the cancer cell of origin in different types of mammary tumors. It remains unclear whether the heterogeneity found in luminal-derived mammary tumors arises from a pre-existing heterogeneity within LCs. To investigate LC heterogeneity, we used lineage tracing to assess whether the ER+ lineage is maintained by multipotent SCs or by lineage-restricted SCs. To this end, we generated doxycycline-inducible ER-rtTA mice that allowed us to perform genetic lineage tracing of ER+ LCs and study their fate and long-term maintenance. Our results show that ER+ cells are maintained by lineage-restricted SCs that exclusively contribute to the expansion of the ER+ lineage during puberty and their maintenance during adult life. ER+ stem cells mediate expansion and maintenance of the ER+ lineage ER+ stem cells expand and differentiate into ER+ cells following transplantation ER+ stem cells survive involution and repopulate the ER+ lineage
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Affiliation(s)
- Alexandra Van Keymeulen
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium.
| | - Marco Fioramonti
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium
| | - Alessia Centonze
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium
| | - Gaëlle Bouvencourt
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium
| | - Younes Achouri
- de Duve Institute, Université Catholique de Louvain, Brussels 1200, Belgium
| | - Cédric Blanpain
- Laboratory of Stem Cells and Cancer, Université Libre de Bruxelles (ULB), Brussels 1070, Belgium; WELBIO, Université Libre de Bruxelles, Brussels 1070, Belgium.
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Marech I, Ammendola M, Leporini C, Patruno R, Luposella M, Zizzo N, Passantino G, Sacco R, Farooqi AA, Zuccalà V, Leo S, Dentamaro R, Porcelli M, Gadaleta P, De Sarro G, Gadaleta CD, Ranieri G. C-Kit receptor and tryptase expressing mast cells correlate with angiogenesis in breast cancer patients. Oncotarget 2017; 9:7918-7927. [PMID: 29487702 PMCID: PMC5814269 DOI: 10.18632/oncotarget.23722] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 10/28/2017] [Indexed: 12/21/2022] Open
Abstract
C-Kit protein is a transmembrane tyrosine kinase (TK) receptor (c-KitR-TK), which is predominantly expressed on mast cells (MCs) playing a role in tumor angiogenesis. It could be also expressed on epithelial breast cancer cells (EBCCs), but no data have been published regarding the correlation between mast cells positive to c-KitR (MCs-c-KitR), EBCCs positive to c-KitR (EBCCs-c-KitR), BC angiogenesis in terms of microvessel density (MVD) and the main clinic-pathological features. This study aims to evaluate the above parameters and their correlations in a series of selected 121 female early BC patients. It has been found a strong correlation between MVD and MCDPT, and MCs-c-KitR, MVD and MCs density positive to tryptase (MCDPT), and MCs-c-KitR and MCDPT by Pearson correlation. These data suggest an involvement of both MCDPT and MCs-c-KitR in BC tumor angiogenesis. Furthermore, BC tissue expressing c-KitR could be a putative predictive factor to c-KitR-TK inhibitors. In this way, selected patients with higher MCs-c-KitR could be candidate to receive c-KitR-TK inhibitors (e.g. masitinib, sunitinib) or tryptase inhibitors (e.g. nafamostat mesilate, gabexate mesilate).
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Affiliation(s)
- Ilaria Marech
- Interventional and Medical Oncology Unit, National Cancer Research Centre, Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
| | - Michele Ammendola
- Department of Medical and Surgery Science Medical School, Clinical Surgery Unit, Magna Graecia University, 88100 Catanzaro, Italy
| | - Christian Leporini
- Department of Health Science, Clinical Pharmacology and Pharmacovigilance Unit, Pharmacovigilance's Centre Calabria Region, Magna Graecia University, Germaneto, 88100 Catanzaro, Italy
| | - Rosa Patruno
- Chair of Pathology, Veterinary Medical School, Aldo Moro University, 70010 Valenzano, Italy
| | - Maria Luposella
- Cardiovascular Disease Unit, San Giovanni di Dio Hospital, 88900 Crotone, Italy
| | - Nicola Zizzo
- Chair of Pathology, Veterinary Medical School, Aldo Moro University, 70010 Valenzano, Italy
| | - Giuseppe Passantino
- Chair of Pathology, Veterinary Medical School, Aldo Moro University, 70010 Valenzano, Italy
| | - Rosario Sacco
- Department of Medical and Surgery Science Medical School, Clinical Surgery Unit, Magna Graecia University, 88100 Catanzaro, Italy
| | - Ammad Ahmad Farooqi
- Laboratory for Translational and Personalized Medicine, Rashid Latif Medical College, University of Lahore, 44000 Islamabad, Pakistan
| | - Valeria Zuccalà
- Pathology Unit, Pugliese-Ciaccio Hospital, 88100 Catanzaro, Italy
| | - Silvana Leo
- Medical Oncology Unit, Vito Fazzi Hospital, Piazzetta Muratore, 73100 Lecce, Italy
| | - Rosalba Dentamaro
- Senology Unit, National Cancer Research Centre, Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
| | - Mariangela Porcelli
- Interventional and Medical Oncology Unit, National Cancer Research Centre, Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
| | - Pietro Gadaleta
- Interventional and Medical Oncology Unit, National Cancer Research Centre, Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
| | - Giovambattista De Sarro
- Department of Health Science, Clinical Pharmacology and Pharmacovigilance Unit, Pharmacovigilance's Centre Calabria Region, Magna Graecia University, Germaneto, 88100 Catanzaro, Italy
| | - Cosmo Damiano Gadaleta
- Interventional and Medical Oncology Unit, National Cancer Research Centre, Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
| | - Girolamo Ranieri
- Interventional and Medical Oncology Unit, National Cancer Research Centre, Istituto Tumori Giovanni Paolo II, 70124 Bari, Italy
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Harrell JC, Shroka TM, Jacobsen BM. Estrogen induces c-Kit and an aggressive phenotype in a model of invasive lobular breast cancer. Oncogenesis 2017; 6:396. [PMID: 29176653 PMCID: PMC5868054 DOI: 10.1038/s41389-017-0002-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 08/09/2017] [Accepted: 08/28/2017] [Indexed: 11/09/2022] Open
Abstract
Among the molecular subtypes of breast cancer are luminal (A or B) estrogen receptor positive (ER+), HER2+, and triple negative (basal-like). In addition to the molecular subtypes, there are 18 histologic breast cancer subtypes classified on appearance, including invasive lobular breast carcinoma (ILC), which are 8-15% of all breast cancers and are largely ER+ tumors. We used a new model of ER+ ILC, called BCK4. To determine the estrogen regulated genes in our ILC model, we examined BCK4 xenograft tumors from mice supplemented with or without estrogen using gene expression arrays. Approximately 3000 genes were regulated by estrogen in vivo. Hierarchical cluster analyses of the BCK4 derived tumors compared with ER+ and ER- breast cancer cell lines show the estrogen treated BCK4 tumors group with ER- breast cancers most likely due to a high proliferation score, while tumors from cellulose supplemented mice were more related to ER+ breast tumor cells. To elucidate genes regulated in vitro by estrogen in BCK4 cells, we performed expression profiling using Illumina arrays of the BCK4 cell line, treated with or without estrogen in vitro. A set of ~200 overlapping genes were regulated by estrogen in the BCK4 cell line and xenograft tumors, and pathway analysis revealed that the c-Kit pathway might be a target to reduce estrogen-induced proliferation. Subsequent studies found that inhibition of c-Kit activity using imatinib mesylate (Gleevec®) blocked estrogen mediated stimulation of BCK4 tumors and BCK4 cells in vitro as effectively as the anti-estrogen fulvestrant (Faslodex®). Decreased expression of c-Kit using shRNA also decreased baseline and estrogen induced proliferation in vitro and in vivo. These studies are the first to indicate that c-Kit inhibition is an effective approach to target c-Kit+ ILC.
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Affiliation(s)
- J Chuck Harrell
- Department of Pathology, Virginia Commonwealth University, Richmond, VA, USA
| | - Thomas M Shroka
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Britta M Jacobsen
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO, 80045, USA.
- Department of Medicine, Division of Endocrinology, Metabolism and Diabetes, University of Colorado School of Medicine, Aurora, CO, 80045, USA.
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35
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Soady KJ, Tornillo G, Kendrick H, Meniel V, Olijnyk-Dallis D, Morris JS, Stein T, Gusterson BA, Isacke CM, Smalley MJ. The receptor protein tyrosine phosphatase PTPRB negatively regulates FGF2-dependent branching morphogenesis. Development 2017; 144:3777-3788. [PMID: 28870991 PMCID: PMC6126639 DOI: 10.1242/dev.149120] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 08/25/2017] [Indexed: 02/02/2023]
Abstract
PTPRB is a transmembrane protein tyrosine phosphatase known to regulate blood vessel remodelling and angiogenesis. Here, we demonstrate that PTPRB negatively regulates branching morphogenesis in the mouse mammary epithelium. We show that Ptprb is highly expressed in adult mammary stem cells and also, although at lower levels, in oestrogen receptor-positive luminal cells. During mammary development, Ptprb expression is downregulated during puberty, a period of extensive ductal outgrowth and branching. In vivo shRNA knockdown of Ptprb in the cleared mammary fat pad transplant assay resulted in smaller epithelial outgrowths with an increased branching density and also increased branching in an in vitro organoid assay. Organoid branching was dependent on stimulation by FGF2, and Ptprb knockdown in mammary epithelial cells resulted in a higher level of fibroblast growth factor receptor (FGFR) activation and ERK1/2 phosphorylation, both at baseline and following FGF2 stimulation. Therefore, PTPRB regulates branching morphogenesis in the mammary epithelium by modulating the response of the FGFR signalling pathway to FGF stimulation. Considering the importance of branching morphogenesis in multiple taxa, our findings have general importance outside mammary developmental biology.
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Affiliation(s)
- Kelly J Soady
- Division of Breast Cancer Research, Breast Cancer Now Research Centre, The Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - Giusy Tornillo
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Howard Kendrick
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Valerie Meniel
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Daria Olijnyk-Dallis
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Joanna S Morris
- School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow, G61 1QH, UK
| | - Torsten Stein
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Barry A Gusterson
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Clare M Isacke
- Division of Breast Cancer Research, Breast Cancer Now Research Centre, The Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - Matthew J Smalley
- European Cancer Stem Cell Research Institute and Cardiff School of Biosciences, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
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36
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Figueira MI, Cardoso HJ, Correia S, Maia CJ, Socorro S. The stem cell factor (SCF)/c-KIT system in carcinogenesis of reproductive tissues: What does the hormonal regulation tell us? Cancer Lett 2017; 405:10-21. [DOI: 10.1016/j.canlet.2017.07.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/15/2017] [Accepted: 07/17/2017] [Indexed: 12/13/2022]
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c-Kit-Positive Adipose Tissue-Derived Mesenchymal Stem Cells Promote the Growth and Angiogenesis of Breast Cancer. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7407168. [PMID: 28573141 PMCID: PMC5442334 DOI: 10.1155/2017/7407168] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 03/28/2017] [Accepted: 04/04/2017] [Indexed: 01/10/2023]
Abstract
Background Adipose tissue-derived mesenchymal stem cells (ASCs) improve the regenerative ability and retention of fat grafts for breast reconstruction in cancer patients following mastectomy. However, ASCs have also been shown to promote breast cancer cell growth and metastasis. For the safety of ASC application, we aimed to identify specific markers for the subpopulation of ASCs that enhance the growth of breast cancer. Methods ASCs and bone marrow-derived vascular endothelial progenitor cells (EPCs) were isolated from Balb/c mice. c-Kit-positive (c-Kit+) or c-Kit-negative (c-Kit−) ASCs were cocultured with 4T1 breast cancer cells. Orthotropic murine models of 4T1, EPCs + 4T1, and c-Kit+/-ASCs + 4T1/EPCs were established in Balb/c mice. Results In coculture, c-Kit+ ASCs enhanced the viability and proliferation of 4T1 cells and stimulated c-Kit expression and interleukin-3 (IL-3) release. In mouse models, c-Kit+ASCs + 4T1/EPCs coinjection increased the tumor volume and vessel formation. Moreover, IL-3, stromal cell-derived factor-1, and vascular endothelial growth factor A in the c-Kit+ASCs + 4T1/EPCs coinjection group were higher than those in the 4T1, EPCs + 4T1, and c-Kit−ASCs + 4T1/EPCs groups. Conclusions c-Kit+ ASCs may promote breast cancer growth and angiogenesis by a synergistic effect of c-Kit and IL-3. Our findings suggest that c-Kit+ subpopulations of ASCs should be eliminated in fat grafts for breast reconstruction of cancer patients following mastectomy.
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38
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Holen I, Speirs V, Morrissey B, Blyth K. In vivo models in breast cancer research: progress, challenges and future directions. Dis Model Mech 2017; 10:359-371. [PMID: 28381598 PMCID: PMC5399571 DOI: 10.1242/dmm.028274] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Research using animal model systems has been instrumental in delivering improved therapies for breast cancer, as well as in generating new insights into the mechanisms that underpin development of the disease. A large number of different models are now available, reflecting different types and stages of the disease; choosing which one to use depends on the specific research question(s) to be investigated. Based on presentations and discussions from leading experts who attended a recent workshop focused on in vivo models of breast cancer, this article provides a perspective on the many varied uses of these models in breast cancer research, their strengths, associated challenges and future directions. Among the questions discussed were: how well do models represent the different stages of human disease; how can we model the involvement of the human immune system and microenvironment in breast cancer; what are the appropriate models of metastatic disease; can we use models to carry out preclinical drug trials and identify pathways responsible for drug resistance; and what are the limitations of patient-derived xenograft models? We briefly outline the areas where the existing breast cancer models require improvement in light of the increased understanding of the disease process, reflecting the drive towards more personalised therapies and identification of mechanisms of drug resistance.
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Affiliation(s)
- Ingunn Holen
- Academic Unit of Clinical Oncology, University of Sheffield, Sheffield S10 2RX, UK
| | - Valerie Speirs
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds LS9 7TF, UK
| | - Bethny Morrissey
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds LS9 7TF, UK
| | - Karen Blyth
- Cancer Research UK Beatson Institute, Glasgow G61 1BD, UK
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39
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Britschgi A, Duss S, Kim S, Couto JP, Brinkhaus H, Koren S, De Silva D, Mertz KD, Kaup D, Varga Z, Voshol H, Vissieres A, Leroy C, Roloff T, Stadler MB, Scheel CH, Miraglia LJ, Orth AP, Bonamy GMC, Reddy VA, Bentires-Alj M. The Hippo kinases LATS1 and 2 control human breast cell fate via crosstalk with ERα. Nature 2017; 541:541-545. [PMID: 28068668 DOI: 10.1038/nature20829] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 11/24/2016] [Indexed: 01/06/2023]
Abstract
Cell fate perturbations underlie many human diseases, including breast cancer. Unfortunately, the mechanisms by which breast cell fate are regulated are largely unknown. The mammary gland epithelium consists of differentiated luminal epithelial and basal myoepithelial cells, as well as undifferentiated stem cells and more restricted progenitors. Breast cancer originates from this epithelium, but the molecular mechanisms that underlie breast epithelial hierarchy remain ill-defined. Here, we use a high-content confocal image-based short hairpin RNA screen to identify tumour suppressors that regulate breast cell fate in primary human breast epithelial cells. We show that ablation of the large tumour suppressor kinases (LATS) 1 and 2 (refs 5, 6), which are part of the Hippo pathway, promotes the luminal phenotype and increases the number of bipotent and luminal progenitors, the proposed cells-of-origin of most human breast cancers. Mechanistically, we have identified a direct interaction between Hippo and oestrogen receptor-α (ERα) signalling. In the presence of LATS, ERα was targeted for ubiquitination and Ddb1-cullin4-associated-factor 1 (DCAF1)-dependent proteasomal degradation. Absence of LATS stabilized ERα and the Hippo effectors YAP and TAZ (hereafter YAP/TAZ), which together control breast cell fate through intrinsic and paracrine mechanisms. Our findings reveal a non-canonical (that is, YAP/TAZ-independent) effect of LATS in the regulation of human breast cell fate.
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Affiliation(s)
- Adrian Britschgi
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland
| | - Stephan Duss
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland
| | - Sungeun Kim
- Genomics Institute of the Novartis Research Foundation, San Diego, California 92121, USA
| | - Joana Pinto Couto
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.,Department of Biomedicine, University of Basel, University Hospital Basel, 4031 Basel, Switzerland
| | - Heike Brinkhaus
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland
| | - Shany Koren
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.,Department of Biomedicine, University of Basel, University Hospital Basel, 4031 Basel, Switzerland
| | - Duvini De Silva
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.,Department of Biomedicine, University of Basel, University Hospital Basel, 4031 Basel, Switzerland
| | - Kirsten D Mertz
- Institute of Pathology Liestal, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
| | - Daniela Kaup
- Institute of Pathology Liestal, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
| | - Zsuzsanna Varga
- Institute of Surgical Pathology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Hans Voshol
- Novartis Institutes for Biomedical Research, 4058 Basel, Switzerland
| | | | - Cedric Leroy
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.,Novartis Institutes for Biomedical Research, 4058 Basel, Switzerland
| | - Tim Roloff
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland
| | - Michael B Stadler
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics, 4058 Basel, Switzerland
| | - Christina H Scheel
- Institute of Stem Cell Research, German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Loren J Miraglia
- Genomics Institute of the Novartis Research Foundation, San Diego, California 92121, USA
| | - Anthony P Orth
- Genomics Institute of the Novartis Research Foundation, San Diego, California 92121, USA
| | - Ghislain M C Bonamy
- Genomics Institute of the Novartis Research Foundation, San Diego, California 92121, USA
| | - Venkateshwar A Reddy
- Genomics Institute of the Novartis Research Foundation, San Diego, California 92121, USA
| | - Mohamed Bentires-Alj
- Friedrich Miescher Institute for Biomedical Research, 4058 Basel, Switzerland.,Department of Biomedicine, University of Basel, University Hospital Basel, 4031 Basel, Switzerland
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40
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Jardé T, Lloyd-Lewis B, Thomas M, Kendrick H, Melchor L, Bougaret L, Watson PD, Ewan K, Smalley MJ, Dale TC. Wnt and Neuregulin1/ErbB signalling extends 3D culture of hormone responsive mammary organoids. Nat Commun 2016; 7:13207. [PMID: 27782124 PMCID: PMC5095178 DOI: 10.1038/ncomms13207] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 09/13/2016] [Indexed: 12/22/2022] Open
Abstract
The development of in vitro culture systems quantitatively and qualitatively recapitulating normal breast biology is key to the understanding of mammary gland biology. Current three-dimensional mammary culture systems have not demonstrated concurrent proliferation and functional differentiation ex vivo in any system for longer than 2 weeks. Here, we identify conditions including Neuregulin1 and R-spondin 1, allowing maintenance and expansion of mammary organoids for 2.5 months in culture. The organoids comprise distinct basal and luminal compartments complete with functional steroid receptors and stem/progenitor cells able to reconstitute a complete mammary gland in vivo. Alternative conditions are also described that promote enrichment of basal cells organized into multiple layers surrounding a keratinous core, reminiscent of structures observed in MMTV-Wnt1 tumours. These conditions comprise a unique tool that should further understanding of normal mammary gland development, the molecular mechanism of hormone action and signalling events whose deregulation leads to breast tumourigenesis.
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Affiliation(s)
- Thierry Jardé
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
- Cancer Program, Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria 3800, Australia
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria 3800, Australia
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Victoria 3168, Australia
| | - Bethan Lloyd-Lewis
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, UK
| | - Mairian Thomas
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Howard Kendrick
- European Cancer Stem Cell Research Institute, Cardiff School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
| | - Lorenzo Melchor
- Division of Breast Cancer Research, Breast Cancer Now, Institute of Cancer Research, London SW3 6JB, UK
| | - Lauriane Bougaret
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Peter D. Watson
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Kenneth Ewan
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Matthew J. Smalley
- European Cancer Stem Cell Research Institute, Cardiff School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
| | - Trevor C. Dale
- Cardiff School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
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Abstract
Metastasis is the underlying cause of death for the majority of breast cancer patients. Despite significant advances in recent years in basic research and clinical development, therapies that specifically target metastatic breast cancer remain inadequate, and represents the single greatest obstacle to reducing mortality of late-stage breast cancer. Recent efforts have leveraged genomic analysis of breast cancer and molecular dissection of tumor-stromal cross-talk to uncover a number of promising candidates for targeted treatment of metastatic breast cancer. Rational combinations of therapeutic agents targeting tumor-intrinsic properties and microenvironmental components provide a promising strategy to develop precision treatments with higher specificity and less toxicity. In this review, we discuss the emerging therapeutic targets in breast cancer metastasis, from tumor-intrinsic pathways to those that involve the host tissue components, including the immune system.
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Affiliation(s)
- Zhuo Li
- Department of Molecular Biology, Princeton University, Princeton, NJ, 08544, United States
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, Princeton, NJ, 08544, United States.
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Ullah N, Liaqat S, Fatima S, Zehra F, Anwer M, Sadiq M. Stem cells and cancer: A review. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2016. [DOI: 10.1016/s2222-1808(15)61057-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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MicroRNA-206 is differentially expressed in Brca1-deficient mice and regulates epithelial and stromal cell compartments of the mouse mammary gland. Oncogenesis 2016; 5:e218. [PMID: 27043663 PMCID: PMC4848838 DOI: 10.1038/oncsis.2016.27] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 01/28/2016] [Accepted: 02/10/2016] [Indexed: 12/14/2022] Open
Abstract
Depletion of Brca1 leads to defects in mouse mammary gland development and mammary tumors in humans and mice. To explore the role of microRNAs (miRNAs) in this process, we examined the mammary glands of MMTV-Cre Brca1Co/Co mice for differential miRNA expression using a candidate approach. Several miRNAs were differentially expressed in mammary tissue at day 1 of lactation and in mammary epithelial cell lines in which Brca1 messenger RNA (mRNA) levels have been reduced. Functional studies revealed that several of these miRNAs regulate mammary epithelial cell function in vitro, including miR-206. Creation and analysis of MMTV-miR-206 transgenic mice showed no effect on lactational mammary development and no tumors, but indicates a role in mammary tissue remodeling in mature mice, potentially involving Igf-1 and Sfrp1. These results indicate the potential of miRNAs to mediate the consequences of Brca1 loss and suggest a novel function for miR-206.
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44
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Tang KD, Holzapfel BM, Liu J, Lee TKW, Ma S, Jovanovic L, An J, Russell PJ, Clements JA, Hutmacher DW, Ling MT. Tie-2 regulates the stemness and metastatic properties of prostate cancer cells. Oncotarget 2016; 7:2572-84. [PMID: 25978029 PMCID: PMC4823056 DOI: 10.18632/oncotarget.3950] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 04/08/2015] [Indexed: 11/27/2022] Open
Abstract
Ample evidence supports that prostate tumor metastasis originates from a rare population of cancer cells, known as cancer stem cells (CSCs). Unfortunately, little is known about the identity of these cells, making it difficult to target the metastatic prostate tumor. Here, for the first time, we report the identification of a rare population of prostate cancer cells that express the Tie-2 protein. We found that this Tie-2High population exists mainly in prostate cancer cell lines that are capable of metastasizing to the bone. These cells not only express a higher level of CSC markers but also demonstrate enhanced resistance to the chemotherapeutic drug Cabazitaxel. In addition, knockdown of the expression of the Tie-2 ligand angiopoietin (Ang-1) led to suppression of CSC markers, suggesting that the Ang-1/Tie-2 signaling pathway functions as an autocrine loop for the maintenance of prostate CSCs. More importantly, we found that Tie-2High prostate cancer cells are more adhesive than the Tie-2Low population to both osteoblasts and endothelial cells. Moreover, only the Tie-2High, but not the Tie-2Low cells developed tumor metastasis in vivo when injected at a low number. Taken together, our data suggest that Tie-2 may play an important role during the development of prostate tumor metastasis.
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MESH Headings
- Animals
- Apoptosis
- Cell Adhesion
- Cell Proliferation
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Humans
- Immunoenzyme Techniques
- Male
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- Osteoblasts/metabolism
- Osteoblasts/pathology
- Prostatic Neoplasms/genetics
- Prostatic Neoplasms/metabolism
- Prostatic Neoplasms/secondary
- RNA, Messenger/genetics
- RNA, Small Interfering/genetics
- Real-Time Polymerase Chain Reaction
- Receptor, TIE-2/antagonists & inhibitors
- Receptor, TIE-2/genetics
- Receptor, TIE-2/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Stromal Cells/metabolism
- Stromal Cells/pathology
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Kai-Dun Tang
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
| | - Boris M. Holzapfel
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
| | - Ji Liu
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
| | - Terence Kin-Wah Lee
- Department of Pathology, Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China
| | - Stephanie Ma
- Department of Anatomy, Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China
| | - Lidija Jovanovic
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
| | - Jiyuan An
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
| | - Pamela J. Russell
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
| | - Judith A. Clements
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
| | - Dietmar W. Hutmacher
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
| | - Ming-Tat Ling
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology and Translational Research Institute, Woolloongabba, Qld, Australia
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45
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Giraddi RR, Shehata M, Gallardo M, Blasco MA, Simons BD, Stingl J. Stem and progenitor cell division kinetics during postnatal mouse mammary gland development. Nat Commun 2015; 6:8487. [PMID: 26511661 PMCID: PMC4632194 DOI: 10.1038/ncomms9487] [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] [Received: 04/27/2015] [Accepted: 08/26/2015] [Indexed: 11/09/2022] Open
Abstract
The cycling properties of mammary stem and progenitor cells is not well understood. To determine the division properties of these cells, we administered synthetic nucleosides for varying periods of time to mice at different stages of postnatal development and monitored the rate of uptake of these nucleosides in the different mammary cell compartments. Here we show that most cell division in the adult virgin gland is restricted to the oestrogen receptor-expressing luminal cell lineage. Our data also demonstrate that the oestrogen receptor-expressing, milk and basal cell subpopulations have telomere lengths and cell division kinetics that are not compatible with these cells being hierarchically organized; instead, our data indicate that in the adult homeostatic gland, each cell type is largely maintained by its own restricted progenitors. We also observe that transplantable stem cells are largely quiescent during oestrus, but are cycling during dioestrus when progesterone levels are high.
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Affiliation(s)
- Rajshekhar R. Giraddi
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Robinson Way, Cambridge CB2 0RE, UK
| | - Mona Shehata
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Robinson Way, Cambridge CB2 0RE, UK
| | - Mercedes Gallardo
- Telomeres and Telomerase Group, Molecular Oncology Program, Spanish National Cancer Research Centre (CNIO), Melchor Fernández Almagro 3, Madrid E-28029, Spain
| | - Maria A. Blasco
- Telomeres and Telomerase Group, Molecular Oncology Program, Spanish National Cancer Research Centre (CNIO), Melchor Fernández Almagro 3, Madrid E-28029, Spain
| | - Benjamin D. Simons
- Cavendish Laboratory, University of Cambridge, 19 JJ Thomson Avenue Cambridge CB3 0HE, UK
- The Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK
- Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Tennis Court Road CB2 1QR, UK
| | - John Stingl
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Robinson Way, Cambridge CB2 0RE, UK
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46
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Di-Cicco A, Petit V, Chiche A, Bresson L, Romagnoli M, Orian-Rousseau V, Vivanco MDM, Medina D, Faraldo MM, Glukhova MA, Deugnier MA. Paracrine Met signaling triggers epithelial-mesenchymal transition in mammary luminal progenitors, affecting their fate. eLife 2015; 4. [PMID: 26165517 PMCID: PMC4498445 DOI: 10.7554/elife.06104] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 06/11/2015] [Indexed: 12/13/2022] Open
Abstract
HGF/Met signaling has recently been associated with basal-type breast cancers, which are thought to originate from progenitor cells residing in the luminal compartment of the mammary epithelium. We found that ICAM-1 efficiently marks mammary luminal progenitors comprising hormone receptor-positive and receptor-negative cells, presumably ductal and alveolar progenitors. Both cell populations strongly express Met, while HGF is produced by stromal and basal myoepithelial cells. We show that persistent HGF treatment stimulates the clonogenic activity of ICAM1-positive luminal progenitors, controlling their survival and proliferation, and leads to the expression of basal cell characteristics, including stem cell potential. This is accompanied by the induction of Snai1 and Snai2, two major transcription factors triggering epithelial–mesenchymal transition, the repression of the luminal-regulatory genes Elf5 and Hey1, and claudin down-regulation. Our data strongly indicate that paracrine Met signaling can control the function of luminal progenitors and modulate their fate during mammary development and tumorigenesis. DOI:http://dx.doi.org/10.7554/eLife.06104.001 Throughout the life of a female mammal, the mammary glands undergo different phases of development to prepare for, and adapt to, feeding offspring. Luminal cells line the inside of branch-like structures throughout the mammary gland and are responsible for producing milk. When the mammary gland grows, new luminal cells develop from a kind of cell called luminal progenitor cells. However, these progenitor cells are also thought to be the source of certain types of breast cancer. Recently, it has been suggested that luminal progenitor cells display a receptor protein called Met on their surface. When Met and ‘co-receptor’ proteins bind to a molecule called HGF, this triggers a cascade of signals that can cause certain cells to change their properties. This is known as the epithelial–mesenchymal transition. Although this transition is important for new tissues to develop, it can also result in cancerous tumors forming if it is not correctly controlled. Luminal cells do not produce HGF themselves, which suggests that Met signaling in these cells is triggered by the HGF released from neighboring cells. However, neither the mechanisms behind this signaling nor the effects of signaling on the luminal progenitor cells are well understood. Di-Cicco et al. set out to identify where Met, its co-receptors and HGF are located in the mouse mammary gland during different phases of development. This revealed that one of the co-receptors—called ICAM-1—can be used as a marker to identify certain types of luminal progenitor cell. Di-Cicco et al. found that these progenitor cells display Met on their surface, and other types of mammary cell—called stromal cells and myoepithelial cells—produce HGF. When exposed to HGF, luminal progenitor cells grown in culture in the laboratory proliferated and went through the epithelial–mesenchymal transition. These findings suggest that myoepithelial and stromal cells regulate luminal progenitor cells by producing HGF to activate Met signaling in these cells. Such interactions could be of great importance during mammary development and tumorigenesis. The next big challenge will be to determine the circumstances under which luminal progenitor cells stimulated by HGF can give rise to breast cancers. This work will allow us to better define the cell population that should be targeted by anti-cancer drugs. DOI:http://dx.doi.org/10.7554/eLife.06104.002
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Affiliation(s)
- Amandine Di-Cicco
- Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | - Valérie Petit
- Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | - Aurélie Chiche
- Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | - Laura Bresson
- Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | - Mathilde Romagnoli
- Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | | | | | | | - Marisa M Faraldo
- Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | - Marina A Glukhova
- Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | - Marie-Ange Deugnier
- Institut Curie, Paris Sciences et Lettres Research University, Paris, France
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47
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Phillips S, Kuperwasser C. SLUG: Critical regulator of epithelial cell identity in breast development and cancer. Cell Adh Migr 2015; 8:578-87. [PMID: 25482617 DOI: 10.4161/19336918.2014.972740] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
SLUG, a member of the SNAIL family of transcriptional repressors, is known to play a diverse number of roles in the cell, and its deregulation has been observed in a variety of cancers including breast. Here, we focus on SLUG's role as a master regulator of mammary epithelial cell (MEC) fate and lineage commitment in the normal mammary gland, and discuss how aberrant SLUG expression can influence breast tumor formation, phenotype, and progression. Specifically, we discuss SLUG's involvement in MEC differentiation, stemness, cellular plasticity, and the epithelial to mesenchymal transition (EMT), and highlight the complex connection between these programs during development and disease progression. Undoubtedly, delineating how molecular factors influence lineage identity and cell-state dynamics in the normal mammary gland will contribute to our understanding of breast tumor heterogeneity.
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Key Words
- BCSC, Breast Cancer Stem Cell
- BM, Basement Membrane
- BRCA1, Breast Cancer Associated 1
- CK, Cytokeratin
- CSC, Cancer Stem Cell
- E-CAD, E-Cadherin
- EMT
- EMT, Epithelial to Mesenchymal Transition
- ERα, Estrogen Receptor
- HDAC, Histone Deacetylasae
- HMECs, Human Mammary Epithelial Cells
- IHC, Immunohistochemical
- LSD1, Lysine Specific Demethylase 1.
- ME, Myoepithelial
- MEC, Mammary Epithelial Cell
- MaSC, Mammary Stem Cell
- SLUG
- SMA, Smooth Muscle Actin
- SNAG, Snai.Gfi-1
- WT, Wild type
- breast cancer
- cellular plasticity
- differentiation
- mammary stem cells
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Affiliation(s)
- Sarah Phillips
- a Department of Developmental, Molecular & Chemical Biology ; Sackler School of Graduate Biomedical Sciences ; Tufts University School of Medicine ; Boston , MA USA
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48
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Tarulli GA, Laven-Law G, Shakya R, Tilley WD, Hickey TE. Hormone-sensing mammary epithelial progenitors: emerging identity and hormonal regulation. J Mammary Gland Biol Neoplasia 2015; 20:75-91. [PMID: 26390871 DOI: 10.1007/s10911-015-9344-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 09/07/2015] [Indexed: 12/13/2022] Open
Abstract
The hormone-sensing mammary epithelial cell (HS-MEC-expressing oestrogen receptor-alpha (ERα) and progesterone receptor (PGR)) is often represented as being terminally differentiated and lacking significant progenitor activity after puberty. Therefore while able to profoundly influence the proliferation and function of other MEC populations, HS-MECs are purported not to respond to sex hormone signals by engaging in significant cell proliferation during adulthood. This is a convenient and practical simplification that overshadows the sublime, and potentially critical, phenotypic plasticity found within the adult HS-MEC population. This concept is exemplified by the large proportion (~80 %) of human breast cancers expressing PGR and/or ERα, demonstrating that HS-MECs clearly proliferate in the context of breast cancer. Understanding how HS-MEC proliferation and differentiation is driven could be key to unraveling the mechanisms behind uncontrolled HS-MEC proliferation associated with ERα- and/or PGR-positive breast cancers. Herein we review evidence for the existence of a HS-MEC progenitor and the emerging plasticity of the HS-MEC population in general. This is followed by an analysis of hormones other than oestrogen and progesterone that are able to influence HS-MEC proliferation and differentiation: androgens, prolactin and transforming growth factor-beta1.
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Affiliation(s)
- Gerard A Tarulli
- Dame Roma Mitchell Cancer Research Laboratories (DRMCRL), School of Medicine, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia.
| | - Geraldine Laven-Law
- Dame Roma Mitchell Cancer Research Laboratories (DRMCRL), School of Medicine, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Reshma Shakya
- Breast Cancer Genetics Laboratory, Centre for Personalised Cancer Medicine, School of Medicine, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Wayne D Tilley
- Dame Roma Mitchell Cancer Research Laboratories (DRMCRL), School of Medicine, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Theresa E Hickey
- Dame Roma Mitchell Cancer Research Laboratories (DRMCRL), School of Medicine, Faculty of Health Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
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49
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Tornillo G, Smalley MJ. ERrrr…where are the progenitors? Hormone receptors and mammary cell heterogeneity. J Mammary Gland Biol Neoplasia 2015; 20:63-73. [PMID: 26193872 PMCID: PMC4595529 DOI: 10.1007/s10911-015-9336-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 07/08/2015] [Indexed: 02/07/2023] Open
Abstract
The mammary epithelium is a highly heterogenous and dynamic tissue that includes a range of cell types with varying levels of proliferative capacity and differentiation potential, from stem to committed progenitor and mature cells. Generation of mature cells through expansion and specification of immature precursors is driven by hormonal and local stimuli. Intriguingly, although circulating hormones can be directly sensed only by a subset of mammary cells, they also regulate the behaviour of cells lacking their cognate receptors through paracrine mechanisms. Thus, mapping the hormonal signalling network on to the emerging mammary cell hierarchy appears to be a difficult task. Nevertheless, a first step towards a better understanding is the characterization of the hormone receptor expression pattern across individual cell types in the mammary epithelium. Here we review the most relevant findings on the cellular distribution of hormone receptors in the mammary gland, taking into account differences between mice and humans, the methods employed to assess receptor expression as well as the variety of approaches used to resolve the mammary cell heterogeneity.
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Affiliation(s)
- Giusy Tornillo
- European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff, CF24 4HQ, UK.
| | - Matthew J Smalley
- European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff, CF24 4HQ, UK
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50
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Arendt LM, Kuperwasser C. Form and function: how estrogen and progesterone regulate the mammary epithelial hierarchy. J Mammary Gland Biol Neoplasia 2015; 20:9-25. [PMID: 26188694 PMCID: PMC4596764 DOI: 10.1007/s10911-015-9337-0] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 07/08/2015] [Indexed: 12/30/2022] Open
Abstract
The mammary gland undergoes dramatic post-natal growth beginning at puberty, followed by full development occurring during pregnancy and lactation. Following lactation, the alveoli undergo apoptosis, and the mammary gland reverses back to resemble the nonparous gland. This process of growth and regression occurs for multiple pregnancies, suggesting the presence of a hierarchy of stem and progenitor cells that are able to regenerate specialized populations of mammary epithelial cells. Expansion of epithelial cell populations in the mammary gland is regulated by ovarian steroids, in particular estrogen acting through its receptor estrogen receptor alpha (ERα) and progesterone signaling through progesterone receptor (PR). A diverse number of stem and progenitor cells have been identified based on expression of cell surface markers and functional assays. Here we review the current understanding of how estrogen and progesterone act together and separately to regulate stem and progenitor cells within the human and mouse mammary tissues. Better understanding of the hierarchal organization of epithelial cell populations in the mammary gland and how the hormonal milieu affects its regulation may provide important insights into the origins of different subtypes of breast cancer.
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Affiliation(s)
- Lisa M Arendt
- Developmental, Molecular, and Chemical Biology Department, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, 136 Harrison Ave, Boston, MA, 02111, USA
- Molecular Oncology Research Institute, Tufts Medical Center, 800 Washington St, Boston, MA, 02111, USA
- Raymond and Beverly Sackler Laboratory for the Convergence of Biomedical, Physical and Engineering Sciences, Boston, MA, 02111, USA
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Dr, Madison, WI, 53706, USA
| | - Charlotte Kuperwasser
- Developmental, Molecular, and Chemical Biology Department, Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, 136 Harrison Ave, Boston, MA, 02111, USA.
- Molecular Oncology Research Institute, Tufts Medical Center, 800 Washington St, Boston, MA, 02111, USA.
- Raymond and Beverly Sackler Laboratory for the Convergence of Biomedical, Physical and Engineering Sciences, Boston, MA, 02111, USA.
- Developmental, Molecular, and Chemical Biology Department, Tufts University School of Medicine, 800 Washington St, Box 5609, Boston, MA, 02111, USA.
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