1
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Danev N, Harman RM, Oliveira L, Huntimer L, Van de Walle GR. Bovine milk-derived cells express transcriptome markers of pluripotency and secrete bioactive factors with regenerative and antimicrobial activity. Sci Rep 2023; 13:12600. [PMID: 37537239 PMCID: PMC10400535 DOI: 10.1038/s41598-023-39833-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023] Open
Abstract
The bovine mammary stem/progenitor cell secretome stimulates regeneration in vitro and contains proteins associated with antimicrobial defense. This has led to the exploration of the secretome as a biologic treatment for mastitis, a costly inflammation of the udder commonly caused by bacteria. This study reports on a population of bovine mammary stem/progenitor cells isolated non-invasively from milk (MiDCs). MiDCs were characterized by immunophenotyping, mammosphere formation assays, and single cell RNA sequencing. They displayed epithelial morphology, exhibited markers of mammary stem/progenitor cells, and formed mammospheres, like mammary gland tissue-isolated stem/progenitor cells. Single cell RNA sequencing revealed two sub-populations of MiDCs: epithelial cells and macrophages. Functionally, the MiDC secretome increased fibroblast migration, promoted angiogenesis of endothelial cells, and inhibited the growth of mastitis-associated bacteria, including antibiotic-resistant strains, in vitro. These qualities of MiDCs render them a source of stem cells and stem cell products that may be used to treat diseases affecting the dairy industry, including mastitis.
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Affiliation(s)
- Nikola Danev
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14853, USA
| | - Rebecca M Harman
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14853, USA
| | - Leane Oliveira
- Elanco Animal Health, 2500 Innovation Way, Indianapolis, IN, 46241, USA
| | - Lucas Huntimer
- Elanco Animal Health, 2500 Innovation Way, Indianapolis, IN, 46241, USA
| | - Gerlinde R Van de Walle
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, 235 Hungerford Hill Road, Ithaca, NY, 14853, USA.
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2
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Hayat A, Carter EP, King HW, Ors A, Doe A, Teijeiro SA, Charrot S, Godinho S, Cutillas P, Mohammed H, Grose RP, Ficz G. Low HER2 expression in normal breast epithelium enables dedifferentiation and malignant transformation via chromatin opening. Dis Model Mech 2023; 16:dmm049894. [PMID: 36661191 PMCID: PMC9922733 DOI: 10.1242/dmm.049894] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 01/06/2023] [Indexed: 01/21/2023] Open
Abstract
Overexpression of the HER2 protein in breast cancer patients is a predictor of poor prognosis and resistance to therapies. We used an inducible breast cancer transformation system that allows investigation of early molecular changes. HER2 overexpression to similar levels as those observed in a subtype of HER2-positive breast cancer patients induced transformation of MCF10A cells and resulted in gross morphological changes, increased anchorage-independent growth of cells, and altered the transcriptional programme of genes associated with oncogenic transformation. Global phosphoproteomic analysis during HER2 induction predominantly detected an increase in protein phosphorylation. Intriguingly, this correlated with chromatin opening, as measured by ATAC-seq on acini isolated from 3D cell culture. HER2 overexpression resulted in opening of many distal regulatory regions and promoted reprogramming-associated heterogeneity. We found that a subset of cells acquired a dedifferentiated breast stem-like phenotype, making them likely candidates for malignant transformation. Our data show that this population of cells, which counterintuitively enriches for relatively low HER2 protein abundance and increased chromatin accessibility, possesses transformational drive, resulting in increased anchorage-independent growth in vitro compared to cells not displaying a stem-like phenotype.
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Affiliation(s)
- Ateequllah Hayat
- Institute of Medical and Biomedical Education, St George’s, University of London, Cranmer Terrace, Tooting, London SW17 0RE, UK
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Edward P. Carter
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Hamish W. King
- Epigenetics and Development Division, Walter and Eliza Hall Institute of Medical Research, Royal Parade, Parkville, VIC 3052, Australia
| | - Aysegul Ors
- Knight Cancer Institute, Oregon Health and Science University, 3181 S.W. Sam Jackson Park Road, Portland, OR 97239-3098, USA
| | - Aaron Doe
- Knight Cancer Institute, Oregon Health and Science University, 3181 S.W. Sam Jackson Park Road, Portland, OR 97239-3098, USA
| | - Saul A. Teijeiro
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Sarah Charrot
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Susana Godinho
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Pedro Cutillas
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Hisham Mohammed
- Knight Cancer Institute, Oregon Health and Science University, 3181 S.W. Sam Jackson Park Road, Portland, OR 97239-3098, USA
| | - Richard P. Grose
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - Gabriella Ficz
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK
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3
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Jiao X, Upadhyaya C, Zhang Z, Zhao J, Li Z, Patel VI, Pestell RG. Assays for the Spectrum of Circulating Tumor Cells. Methods Mol Biol 2022; 2429:533-545. [PMID: 35507187 DOI: 10.1007/978-1-0716-1979-7_37] [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: 06/14/2023]
Abstract
Cancer cells sharing stem cell properties are called "cancer stem cells" (CSCs). CSCs have distinct metabolic properties, are intrinsically drug resistant evading chemotherapies, are regulated by miRNA networks and participate in tumor relapse and metastases. During metastatic dissemination, circulating tumor cells (CTCs) invade distant organs and settle in supportive niches. In this process, the stem cell-like properties within CTCs contribute to CTC survival and eventually seed the growth of a secondary tumor. We herein describe methodologies for the analysis of CTCs as they reside in distinct functional pools with distinct characteristics.
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Affiliation(s)
- Xuanmao Jiao
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, Wynnewood, PA, USA.
- Xavier University School of Medicine, Woodbury, NY, USA.
| | | | - Zhao Zhang
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, Wynnewood, PA, USA
| | - Jun Zhao
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, Wynnewood, PA, USA
| | - Zhiping Li
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, Wynnewood, PA, USA
- Xavier University School of Medicine, Woodbury, NY, USA
| | - Vivek I Patel
- Xavier University School of Medicine, Woodbury, NY, USA
| | - Richard G Pestell
- Pennsylvania Cancer and Regenerative Medicine Research Center, Baruch S. Blumberg Institute, Wynnewood, PA, USA
- Xavier University School of Medicine, Woodbury, NY, USA
- The Wistar Cancer Center, Wistar Institute, Philadelphia, PA, USA
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4
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Gupta S, Kumar P, Das BC. HPV +ve/-ve oral-tongue cancer stem cells: A potential target for relapse-free therapy. Transl Oncol 2021; 14:100919. [PMID: 33129107 PMCID: PMC7590584 DOI: 10.1016/j.tranon.2020.100919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/27/2020] [Accepted: 10/12/2020] [Indexed: 12/12/2022] Open
Abstract
The tongue squamous cell carcinoma (TSCC) is a highly prevalent head and neck cancer often associated with tobacco and/or alcohol abuse or high-risk human papillomavirus (HR-HPV) infection. HPV positive TSCCs present a unique mechanism of tumorigenesis as compared to tobacco and alcohol-induced TSCCs and show a better prognosis when treated. The poor prognosis and/or recurrence of TSCC is due to presence of a small subpopulation of tumor-initiating tongue cancer stem cells (TCSCs) that are intrinsically resistant to conventional chemoradio-therapies enabling cancer to relapse. Therefore, targeting TCSCs may provide efficient therapeutic strategy for relapse-free survival of TSCC patients. Indeed, the development of new TCSC targeting therapeutic approaches for the successful elimination of HPV+ve/-ve TCSCs could be achieved either by targeting the self-renewal pathways, epithelial mesenchymal transition, vascular niche, nanoparticles-based therapy, induction of differentiation, chemoradio-sensitization of TCSCs or TCSC-derived exosome-based drug delivery and inhibition of HPV oncogenes or by regulating epigenetic pathways. In this review, we have discussed all these potential approaches and highlighted several important signaling pathways/networks involved in the formation and maintenance of TCSCs, which are targetable as novel therapeutic targets to sensitize/eliminate TCSCs and to improve survival of TSCC patients.
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Affiliation(s)
- Shilpi Gupta
- Stem Cell and Cancer Research Lab, Amity Institute of Molecular Medicine & Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida 201313, India; National Institute of Cancer Prevention and Research (NICPR), I-7, Sector-39, Noida 201301, India
| | - Prabhat Kumar
- Stem Cell and Cancer Research Lab, Amity Institute of Molecular Medicine & Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida 201313, India
| | - Bhudev C Das
- Stem Cell and Cancer Research Lab, Amity Institute of Molecular Medicine & Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noida 201313, India.
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5
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Zhang X, Powell K, Li L. Breast Cancer Stem Cells: Biomarkers, Identification and Isolation Methods, Regulating Mechanisms, Cellular Origin, and Beyond. Cancers (Basel) 2020; 12:E3765. [PMID: 33327542 PMCID: PMC7765014 DOI: 10.3390/cancers12123765] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/03/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
Despite recent advances in diagnosis and treatment, breast cancer (BC) is still a major cause of cancer-related mortality in women. Breast cancer stem cells (BCSCs) are a small but significant subpopulation of heterogeneous breast cancer cells demonstrating strong self-renewal and proliferation properties. Accumulating evidence has proved that BCSCs are the driving force behind BC tumor initiation, progression, metastasis, drug resistance, and recurrence. As a heterogeneous disease, BC contains a full spectrum of different BC subtypes, and different subtypes of BC further exhibit distinct subtypes and proportions of BCSCs, which correspond to different treatment responses and disease-specific outcomes. This review summarized the current knowledge of BCSC biomarkers and their clinical relevance, the methods for the identification and isolation of BCSCs, and the mechanisms regulating BCSCs. We also discussed the cellular origin of BCSCs and the current advances in single-cell lineage tracing and transcriptomics and their potential in identifying the origin and lineage development of BCSCs.
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Affiliation(s)
- Xiaoli Zhang
- Department of Biomedical Informatics, College of Medicine, The Ohio State University, 320B Lincoln Tower, 1800 Cannon Dr., Columbus, OH 43210, USA;
| | | | - Lang Li
- Department of Biomedical Informatics, College of Medicine, The Ohio State University, 320B Lincoln Tower, 1800 Cannon Dr., Columbus, OH 43210, USA;
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6
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Taurin S, Alkhalifa H. Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypotheses. Neoplasia 2020; 22:663-678. [PMID: 33142233 PMCID: PMC7586061 DOI: 10.1016/j.neo.2020.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 12/12/2022]
Abstract
The cellular heterogeneity of breast cancers still represents a major therapeutic challenge. The latest genomic studies have classified breast cancers in distinct clusters to inform the therapeutic approaches and predict clinical outcomes. The mammary epithelium is composed of luminal and basal cells, and this seemingly hierarchical organization is dependent on various stem cells and progenitors populating the mammary gland. Some cancer cells are conceptually similar to the stem cells as they can self-renew and generate bulk populations of nontumorigenic cells. Two models have been proposed to explain the cell of origin of breast cancer and involve either the reprogramming of differentiated mammary cells or the dysregulation of mammary stem cells or progenitors. Both hypotheses are not exclusive and imply the accumulation of independent mutational events. Cancer stem cells have been isolated from breast tumors and implicated in the development, metastasis, and recurrence of breast cancers. Recent advances in single-cell sequencing help deciphering the clonal evolution within each breast tumor. Still, few clinical trials have been focused on these specific cancer cell populations.
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Affiliation(s)
- Sebastien Taurin
- Department of Molecular Medicine, College of Medicine and Medical Sciences, Princess Al-Jawhara Center for Molecular Medicine and Inherited Disorders, Arabian Gulf University, Manama, Bahrain.
| | - Haifa Alkhalifa
- New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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7
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Ma Z, Parris AB, Howard EW, Davis M, Cao X, Woods C, Yang X. In Utero Exposure to Bisphenol a Promotes Mammary Tumor Risk in MMTV-Erbb2 Transgenic Mice Through the Induction of ER-erbB2 Crosstalk. Int J Mol Sci 2020; 21:ijms21093095. [PMID: 32353937 PMCID: PMC7247154 DOI: 10.3390/ijms21093095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/23/2020] [Accepted: 04/26/2020] [Indexed: 12/16/2022] Open
Abstract
Bisphenol A (BPA) is the most common environmental endocrine disrupting chemical. Studies suggest a link between perinatal BPA exposure and increased breast cancer risk, but the underlying mechanisms remain unclear. This study aims to investigate the effects of in utero BPA exposure on mammary tumorigenesis in MMTV-erbB2 transgenic mice. Pregnant mice were subcutaneously injected with BPA (0, 50, 500 ng/kg and 250 µg/kg BW) daily between gestational days 11–19. Female offspring were examined for mammary tumorigenesis, puberty onset, mammary morphogenesis, and signaling in ER and erbB2 pathways. In utero exposure to low dose BPA (500 ng/kg) induced mammary tumorigenesis, earlier puberty onset, increased terminal end buds, and prolonged estrus phase, which was accompanied by proliferative mammary morphogenesis. CD24/49f-based FACS analysis showed that in utero exposure to 500 ng/kg BPA induced expansion of luminal and basal/myoepithelial cell subpopulations at PND 35. Molecular analysis of mammary tissues at PND 70 showed that in utero exposure to low doses of BPA induced upregulation of ERα, p-ERα, cyclin D1, and c-myc, concurrent activation of erbB2, EGFR, erbB-3, Erk1/2, and Akt, and upregulation of growth factors/ligands. Our results demonstrate that in utero exposure to low dose BPA promotes mammary tumorigenesis in MMTV-erbB2 mice through induction of ER-erbB2 crosstalk and mammary epithelial reprogramming, which advance our understanding of the mechanism associated with in utero exposure to BPA-induced breast cancer risk. The studies also support using MMTV-erbB2 mouse model for relevant studies.
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Affiliation(s)
- Zhikun Ma
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC 28081, USA; (Z.M.); (A.B.P.); (E.W.H.); (X.C.); (C.W.)
| | - Amanda B. Parris
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC 28081, USA; (Z.M.); (A.B.P.); (E.W.H.); (X.C.); (C.W.)
| | - Erin W. Howard
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC 28081, USA; (Z.M.); (A.B.P.); (E.W.H.); (X.C.); (C.W.)
| | - Meghan Davis
- Biotechnology, Rowan-Cabarrus Community College, Kannapolis, NC 28081, USA;
| | - Xia Cao
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC 28081, USA; (Z.M.); (A.B.P.); (E.W.H.); (X.C.); (C.W.)
| | - Courtney Woods
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC 28081, USA; (Z.M.); (A.B.P.); (E.W.H.); (X.C.); (C.W.)
| | - Xiaohe Yang
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC 28081, USA; (Z.M.); (A.B.P.); (E.W.H.); (X.C.); (C.W.)
- The Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Correspondence: ; Tel.: +1-704-250-5726
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8
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Lin D, Li P, Feng J, Lin Z, Chen X, Yang N, Wang L, Liu D. Screening Therapeutic Agents Specific to Breast Cancer Stem Cells Using a Microfluidic Single-Cell Clone-Forming Inhibition Assay. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1901001. [PMID: 30998296 DOI: 10.1002/smll.201901001] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 04/03/2019] [Indexed: 06/09/2023]
Abstract
Screens of cancer stem cells (CSCs)-specific agents present significant challenges to conventional cell assays due to the difficulty in preparing CSCs ready for drug testing. To overcome this limitation, developed is a microfluidic single-cell assay for screening breast cancer stem cell-specific agents. This assay takes advantage of the single-cell clone-forming capability of CSCs, which can be specifically inhibited by CSC-targeting agents. The single-cell assay is performed on a microfluidic chip with an array of 3840 cell-capturing units; the single-cell arrays are easily formed by flowing a cell suspension into the microchip. Achieved is a single cell-capture rate of ≈60% thus allowing more than 2000 single cells to be analyzed in a single test. Over long-term suspension culture, only a minority of cells survive and form tumorspheres. The clone-formation rate of MCF-7, MDA-MB-231, and T47D cells is 1.67%, 5.78%, and 5.24%, respectively. The clone-forming inhibition assay is conducted by exposing the single-cell arrays to a set of anticancer agents. The CSC-targeting agents show complete inhibition of single-cell clone formation while the nontargeting ones show incomplete inhibition effects. The resulting microfluidic single-cell assay with the potential to screen CSC-specific agents with high efficiency provides new tools for individualized tumor therapy.
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Affiliation(s)
- Dongguo Lin
- Department of Laboratory Medicine, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, 510180, China
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou, 510180, China
- Clinical Molecular Medicine and Molecular Diagnosis Key Laboratory of Guangdong Province, Guangzhou, 510180, China
| | - Peiwen Li
- Department of Laboratory Medicine, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, 510180, China
- Department of Pathology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Jin Feng
- Department of Laboratory Medicine, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, 510180, China
| | - Zhun Lin
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Xiao Chen
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Na Yang
- Department of Laboratory Medicine, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, 510180, China
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou, 510180, China
- Clinical Molecular Medicine and Molecular Diagnosis Key Laboratory of Guangdong Province, Guangzhou, 510180, China
| | - Lihui Wang
- Department of Pathology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Dayu Liu
- Department of Laboratory Medicine, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, 510180, China
- Department of Laboratory Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
- Guangdong Engineering Technology Research Center of Microfluidic Chip Medical Diagnosis, Guangzhou, 510180, China
- Clinical Molecular Medicine and Molecular Diagnosis Key Laboratory of Guangdong Province, Guangzhou, 510180, China
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9
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Liu Y, Nekulova M, Nenutil R, Horakova I, Appleyard MV, Murray K, Holcakova J, Galoczova M, Quinlan P, Jordan LB, Purdie CA, Vojtesek B, Thompson AM, Coates PJ. ∆Np63/p40 correlates with the location and phenotype of basal/mesenchymal cancer stem-like cells in human ER + and HER2 + breast cancers. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2019; 6:83-93. [PMID: 31591823 PMCID: PMC6966710 DOI: 10.1002/cjp2.149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 09/17/2019] [Accepted: 09/20/2019] [Indexed: 12/14/2022]
Abstract
ΔNp63, also known as p40, regulates stemness of normal mammary gland epithelium and provides stem cell characteristics in basal and HER2‐driven murine breast cancer models. Whilst ΔNp63/p40 is a characteristic feature of normal basal cells and basal‐type triple‐negative breast cancer, some receptor‐positive breast cancers express ΔNp63/p40 and its overexpression imparts cancer stem cell‐like properties in ER+ cell lines. However, the incidence of ER+ and HER2+ tumours that express ΔNp63/p40 is unclear and the phenotype of ΔNp63/p40+ cells in these tumours remains uncertain. Using immunohistochemistry with p63 isoform‐specific antibodies, we identified a ΔNp63/p40+ tumour cell subpopulation in 100 of 173 (58%) non‐triple negative breast cancers and the presence of this population associated with improved survival in patients with ER−/HER2+ tumours (p = 0.006). Furthermore, 41% of ER+/PR+ and/or HER2+ locally metastatic breast cancers expressed ΔNp63/p40, and these cells commonly accounted for <1% of the metastatic tumour cell population that localised to the tumour/stroma interface, exhibited an undifferentiated phenotype and were CD44+/ALDH−. In vitro studies revealed that MCF7 and T47D (ER+) and BT‐474 (HER2+) breast cancer cell lines similarly contained a small subpopulation of ΔNp63/p40+ cells that increased in mammospheres. In vivo, MCF7 xenografts contained ΔNp63/p40+ cells with a similar phenotype to primary ER+ cancers. Consistent with tumour samples, these cells also showed a distinct location at the tumour/stroma interface, suggesting a role for paracrine factors in the induction or maintenance of ΔNp63/p40. Thus, ΔNp63/p40 is commonly present in a small population of tumour cells with a distinct phenotype and location in ER+ and/or HER2+ human breast cancers.
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Affiliation(s)
- Yajing Liu
- NCRC, University of Michigan, Ann Arbor, MI, USA
| | - Marta Nekulova
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Rudolf Nenutil
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Iva Horakova
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - M Virginia Appleyard
- Dundee Cancer Centre, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Karen Murray
- Dundee Cancer Centre, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Jitka Holcakova
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Michaela Galoczova
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Philip Quinlan
- Advanced Data Analysis Centre, University of Nottingham, Nottingham, UK
| | - Lee B Jordan
- Department of Pathology, Ninewells Hospital and Medical School, Dundee, UK
| | - Colin A Purdie
- Department of Pathology, Ninewells Hospital and Medical School, Dundee, UK
| | - Borivoj Vojtesek
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Alastair M Thompson
- Division of Surgical Oncology, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Philip J Coates
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Brno, Czech Republic
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10
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Pang L, Ding J, Ge Y, Fan J, Fan SK. Single-Cell-Derived Tumor-Sphere Formation and Drug-Resistance Assay Using an Integrated Microfluidics. Anal Chem 2019; 91:8318-8325. [DOI: 10.1021/acs.analchem.9b01084] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Long Pang
- School of Basic Medical Science, The Shaanxi Key Laboratory of Brain Disorders, Xi’an Medical University, Xi’an, 710021, China
- Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, 710049, China
| | - Jing Ding
- Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, 710049, China
| | - Yuxin Ge
- School of Basic Medical Science, The Shaanxi Key Laboratory of Brain Disorders, Xi’an Medical University, Xi’an, 710021, China
| | - Jianglin Fan
- School of Basic Medical Science, The Shaanxi Key Laboratory of Brain Disorders, Xi’an Medical University, Xi’an, 710021, China
| | - Shih-Kang Fan
- Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan
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11
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Pommier SJ, Morgan RE, Limbach KE, Jackson CM, Naik AM, Peckham JL, Muller PJ, Condron ME, Jameson NE, Pommier RF. Surgical resection of breast cancers: Molecular analysis of cancer stem cells in residual disease. Surgery 2019; 165:1008-1013. [DOI: 10.1016/j.surg.2019.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/16/2018] [Accepted: 01/01/2019] [Indexed: 12/21/2022]
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12
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Ma Z, Parris AB, Howard EW, Shi Y, Yang S, Jiang Y, Kong L, Yang X. Caloric restriction inhibits mammary tumorigenesis in MMTV-ErbB2 transgenic mice through the suppression of ER and ErbB2 pathways and inhibition of epithelial cell stemness in premalignant mammary tissues. Carcinogenesis 2019; 39:1264-1273. [PMID: 30107476 DOI: 10.1093/carcin/bgy096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 07/27/2018] [Indexed: 12/21/2022] Open
Abstract
Caloric intake influences the onset of many diseases, including cancer. In particular, caloric restriction (CR) has been reported to suppress mammary tumorigenesis in various models. However, the underlying cancer preventive mechanisms have not been fully explored. To this end, we aimed to characterize the anticancer mechanisms of CR using MMTV-ErbB2 transgenic mice, a well-established spontaneous ErbB2-overexpressing mammary tumor model, by focusing on cellular and molecular changes in premalignant tissues. In MMTV-ErbB2 mice with 30% CR beginning at 8 weeks of age, mammary tumor development was dramatically inhibited, as exhibited by reduced tumor incidence and increased tumor latency. Morphogenic mammary gland analyses in 15- and 20-week-old mice indicated that CR significantly decreased mammary epithelial cell (MEC) density and proliferative index. To understand the underlying mechanisms, we analyzed the effects of CR on mammary stem/progenitor cells. Results from fluorescence-activated cell sorting analyses showed that CR modified mammary tissue hierarchy dynamics, as evidenced by decreased luminal cells (CD24highCD49flow), putative mammary reconstituting unit subpopulation (CD24highCD49fhigh) and luminal progenitor cells (CD61highCD49fhigh). Mammosphere and colony-forming cell assays demonstrated that CR significantly inhibited mammary stem cell self-renewal and progenitor cell numbers. Molecular analyses indicated that CR concurrently inhibited estrogen receptor (ER) and ErbB2 signaling. These molecular changes were accompanied by decreased mRNA levels of ER-targeted genes and epidermal growth factor receptor/ErbB2 family members and ligands, suggesting ER-ErbB2 signaling cross-talk. Collectively, our data demonstrate that CR significantly impacts ER and ErbB2 signaling, which induces profound changes in MEC reprogramming, and mammary stem/progenitor cell inhibition is a critical mechanism of CR-mediated breast cancer prevention.
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Affiliation(s)
- Zhikun Ma
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC, USA
| | - Amanda B Parris
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC, USA
| | - Erin W Howard
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC, USA
| | - Yujie Shi
- Department of Pathology, Henan Province People's Hospital, Zhengzhou, Henan, China
| | - Shihe Yang
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Yunbo Jiang
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Lingfei Kong
- Department of Pathology, Henan Province People's Hospital, Zhengzhou, Henan, China
| | - Xiaohe Yang
- Julius L. Chambers Biomedical/Biotechnology Research Institute, Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, NC, USA.,Department of Pathology, Henan Province People's Hospital, Zhengzhou, Henan, China.,Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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13
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Aalam SMM, Beer PA, Kannan N. Assays for functionally defined normal and malignant mammary stem cells. Adv Cancer Res 2019; 141:129-174. [PMID: 30691682 DOI: 10.1016/bs.acr.2018.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The discovery of rare, heterogeneous self-renewing stem cells with shared developmental and molecular features within epithelial components of mammary gland and breast cancers has provided a conceptual framework to understand cellular composition of these tissues and mechanisms that control their number. These normal mammary epithelial stem cells (MaSCs) and breast cancer stem cells (BCSCs) were identified and analyzed using transplant assays (namely mammary repopulating unit (MRU) assay, mammary tumor-initiating cell (TIC) assay), which reveal their latent ability to regenerate respective normal and malignant epithelial tissues with self-renewing units displaying hierarchical cellular differentiation over multiple generations in recipient mice. "Next-generation" methods using "barcoded" normal and malignant mammary cells, with the help of next-generation sequencing (NGS) technology, have revealed hidden complexity and heterogeneous growth potential of MaSCs and BCSCs. Several single markers or combinations of markers have been reported to prospectively enrich MaSCs and BCSCs. Such markers and the extent to which they enrich for MaSCs and BCSCs activity require a critical appraisal. Also, knowledge of the functional assays and their limitations and harmonious reporting of results is a prerequisite to improve our understanding of MaSCs and BCSCs. This chapter describes evolution of the concept of MaSCs and BCSCs, and specific methodologies to investigate them.
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Affiliation(s)
- Syed Mohammed Musheer Aalam
- Laboratory of Stem Cell and Cancer Biology, Division of Experimental Pathology and Laboratory Medicine, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States
| | - Philip Anthony Beer
- Laboratory of Stem Cell and Cancer Biology, Division of Experimental Pathology and Laboratory Medicine, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States; Sanger Institute, Wellcome Genome Campus, Cambridge, United Kingdom
| | - Nagarajan Kannan
- Laboratory of Stem Cell and Cancer Biology, Division of Experimental Pathology and Laboratory Medicine, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, United States.
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14
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Patel Y, Soni M, Awgulewitsch A, Kern MJ, Liu S, Shah N, Singh UP, Chen H. Overexpression of miR-489 derails mammary hierarchy structure and inhibits HER2/neu-induced tumorigenesis. Oncogene 2019; 38:445-453. [PMID: 30104710 PMCID: PMC6338493 DOI: 10.1038/s41388-018-0439-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 05/30/2018] [Accepted: 06/29/2018] [Indexed: 01/23/2023]
Abstract
Although it has been demonstrated that transformed progenitor cell population can contribute to tumor initiation, factors contributing to this malignant transformation are poorly known. Using in vitro and xenograft-based models, previous studies demonstrated that miR-489 acts as a tumor suppressor miRNA by targeting various oncogenic pathways. It has been demonstrated that miR-489 directly targets HER2 and inhibits the HER2 signaling pathway; however, its role in mammary gland development and HER2-induced tumor initiation hasn't been studied. To dissect the role of miR-489, we sorted different populations of mammary epithelial cells and determined that miR-489 was highly expressed in mammary stem cells. MMTV-miR-489 mice that overexpressed miR-489 in mammary epithelial cells were developed and these mice exhibited an inhibition of mammary gland development in early ages with a specific impact on highly proliferative cells. Double transgenic MMTV-Her2-miR489 mice were then generated to observe how miR-489 overexpression affects HER2-induced tumorigenesis. miR-489 overexpression delayed HER2-induced tumor initiation significantly. Moreover, miR-489 overexpression inhibited tumor growth and lung metastasis. miR-489 overexpression reduced mammary progenitor cell population significantly in preneoplastic mammary glands of MMTV-Her2 mice which showed a putative transformed population in HER2-induced tumorigenesis. The miR-489 overexpression reduced CD49fhiCD61hi populations in tumors that have stem-like properties, and miR-489 overexpression altered the HER2 signaling pathway in mammary tumors. Altogether, these data indicate that the inhibition of HER2-induced tumorigenesis by miR-489 overexpression was due to altering progenitor cell populations while decreasing tumor growth and metastasis via influencing tumor promoting genes DEK and SHP2.
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MESH Headings
- Animals
- Antigens, CD/analysis
- Cell Differentiation
- Cell Transformation, Neoplastic/genetics
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/metabolism
- Epithelial Cells/metabolism
- Female
- Gene Expression Regulation, Neoplastic
- Lung Neoplasms/secondary
- Mammary Glands, Animal/cytology
- Mammary Glands, Animal/growth & development
- Mammary Glands, Animal/metabolism
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/pathology
- Mammary Tumor Virus, Mouse/genetics
- Mice
- Mice, Transgenic
- MicroRNAs/biosynthesis
- MicroRNAs/genetics
- MicroRNAs/physiology
- Neoplastic Stem Cells/cytology
- Neoplastic Stem Cells/metabolism
- Oncogene Proteins/genetics
- Oncogene Proteins/metabolism
- Poly-ADP-Ribose Binding Proteins/genetics
- Poly-ADP-Ribose Binding Proteins/metabolism
- Pregnancy
- Protein Tyrosine Phosphatase, Non-Receptor Type 11/genetics
- Protein Tyrosine Phosphatase, Non-Receptor Type 11/metabolism
- RNA, Neoplasm/biosynthesis
- RNA, Neoplasm/genetics
- RNA, Neoplasm/physiology
- Receptor, ErbB-2/genetics
- Receptor, ErbB-2/physiology
- Recombinant Fusion Proteins/biosynthesis
- Recombinant Fusion Proteins/metabolism
- Stem Cells/metabolism
- Tumor Stem Cell Assay
- Up-Regulation
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Affiliation(s)
- Y Patel
- Department of Biological Science, University of South Carolina, Columbia, SC, 29208, USA
- Center for Colon Cancer Research, University of South Carolina, Columbia, SC, 29208, USA
| | - M Soni
- Department of Biological Science, University of South Carolina, Columbia, SC, 29208, USA
- Center for Colon Cancer Research, University of South Carolina, Columbia, SC, 29208, USA
| | - A Awgulewitsch
- Department of Medicine and Department of Regenerative Medicine and Cell Biology, Transgenic and Genome Editing Core, Medical University of South Carolina (MUSC), Charleston, SC, 29425, USA
| | - M J Kern
- Department of Regenerative Medicine and Cell Biology, Director, Gene Function Core, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - S Liu
- Department of Biological Science, University of South Carolina, Columbia, SC, 29208, USA
- Center for Colon Cancer Research, University of South Carolina, Columbia, SC, 29208, USA
| | - N Shah
- Department of Biological Science, University of South Carolina, Columbia, SC, 29208, USA
- Center for Colon Cancer Research, University of South Carolina, Columbia, SC, 29208, USA
| | - U P Singh
- Department of Pathology, Microbiology and Immunology, School of Medicine, University of South Carolina, Columbia, SC, 29208, USA
| | - H Chen
- Department of Biological Science, University of South Carolina, Columbia, SC, 29208, USA.
- Center for Colon Cancer Research, University of South Carolina, Columbia, SC, 29208, USA.
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15
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Chen MC, Baskaran R, Lee NH, Hsu HH, Ho TJ, Tu CC, Lin YM, Viswanadha VP, Kuo WW, Huang CY. CXCL2/CXCR2 axis induces cancer stem cell characteristics in CPT-11-resistant LoVo colon cancer cells via Gαi-2 and Gαq/11. J Cell Physiol 2018; 234:11822-11834. [PMID: 30552676 DOI: 10.1002/jcp.27891] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 11/08/2018] [Indexed: 12/30/2022]
Abstract
Cancer stem cells (CSCs) exist in colon cancer and exhibit characteristics of stem cells which are due to lineages of tissues where they arise. Epithelial to mesenchymal transition (EMT)-undergoing cancer cells display CSC properties and therapeutic resistance. Cancer and stromal cells comprise of a tumor microenvironment. One way the two populations communicate with each other is to secret CXC ligands (CXCLs). CXCLs are capable of causing chemotaxis of specific types of stromal cells and control angiogenesis. Double immunofluorescence, western blot analysis, and colony-formation assay were carried out to compare parental and CPT-11-resistant LoVo cells. CPT-11-R LoVo colon cancer cells showed increased expression of CXCL1, CXCL2, CXCL3, and CXCL8. They displayed significantly increased intracellular protein levels of CXCL2 and CXCR2. CPT-11-R LoVo cells showed significantly elevated expression in aldehyde dehydrogenase 1 (ALDH1), cluster of differentiation 24 (CD24), cluster of differentiation 44 (CD44), and epithelial cell adhesion molecule (EpCAM). CXCL2 knockdown by short hairpin RNA resulted in reduced expression of CSC proteins, cyclins, EMT markers, G proteins, and matrix metalloproteinases (MMPs). Finally, Gαi-2 was found to promote expression of CSC genes and tumorigenesis which were more apparent in the resistant cells. In addition, Gαq/11 showed a similar pattern with exceptions of EpCAM and MMP9. Therefore, CXCL2-CXCR2 axis mediates through Gαi-2 and Gαq/11 to promote tumorigenesis and contributes to CSC properties of CPT-11-R LoVo cells.
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Affiliation(s)
- Ming-Cheng Chen
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Department of Surgery, Division of Colorectal Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
- Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Rathinasamy Baskaran
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Nien-Hung Lee
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Hsi-Hsien Hsu
- Division of Colorectal Surgery, Mackay Memorial Hospital, Taipei, Taiwan
- MacKay Medicine, Nursing and Management College, Taipei, Taiwan
| | - Tsung-Jung Ho
- Chinese Medicine Department, China Medical University Beigang Hospital, Yunlin, Taiwan
| | - Chuan-Chou Tu
- Department of Internal Medicine, Division of Chest Medicine, Armed Force Taichung General Hospital, Taichung, Taiwan
| | - Yueh-Min Lin
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | | | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Chinese Medicine Department, China Medical University Beigang Hospital, Yunlin, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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16
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Finot L, Chanat E, Dessauge F. Molecular signature of the putative stem/progenitor cells committed to the development of the bovine mammary gland at puberty. Sci Rep 2018; 8:16194. [PMID: 30385815 PMCID: PMC6212573 DOI: 10.1038/s41598-018-34691-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 10/23/2018] [Indexed: 12/26/2022] Open
Abstract
Milk production is highly dependent on the extensive development of the mammary epithelium, which occurs during puberty. It is therefore essential to distinguish the epithelial cells committed to development from the related epithelial hierarchy. Using cell phenotyping and sorting, we highlighted four cell sub-populations within the bovine mammary gland at puberty. The CD49fhighCD24neg cells expressing CD10, KRT14, vimentin and PROCR corresponded to cells committed to the basal lineage. The CD49flow sub-population contained two cell subsets (CD49flowCD24neg and CD49flowCD24pos). Both subsets expressed hormone receptors including ER, PR and PRLR, as well as ALDH1 activity but only the CD49flowCD24pos subset expressed ELF5. These data indicated that the CD49flow sub-population is mainly composed of cells displaying a luminal phenotype and that this population comprises two luminal cell subsets, namely the CD24neg and CD24pos cells, likely committed to ductal and alveolar lineage, respectively. The putative mammary stem cell (MaSC) fraction was recovered in the CD49fhighCD24pos sub-population which were shown to form mammospheres in vitro. These cells differentially expressed CD10, KRT14 and KRT7, suggesting the existence of several putative MaSC sub-fractions. In-depth characterization of these epithelial sub-populations provides new insights into the bovine mammary epithelial cell lineage and suggests a common developmental lineage in mammals.
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Affiliation(s)
- Laurence Finot
- UMR 1348 PEGASE, Agrocampus Ouest, INRA, Saint-Gilles, France
| | - Eric Chanat
- UMR 1348 PEGASE, Agrocampus Ouest, INRA, Saint-Gilles, France
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17
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Olabi S, Ucar A, Brennan K, Streuli CH. Integrin-Rac signalling for mammary epithelial stem cell self-renewal. Breast Cancer Res 2018; 20:128. [PMID: 30348189 PMCID: PMC6198444 DOI: 10.1186/s13058-018-1048-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 09/04/2018] [Indexed: 01/08/2023] Open
Abstract
Background Stem cells are precursors for all mammary epithelia, including ductal and alveolar epithelia, and myoepithelial cells. In vivo mammary epithelia reside in a tissue context and interact with their milieu via receptors such as integrins. Extracellular matrix receptors coordinate important cellular signalling platforms, of which integrins are the central architects. We have previously shown that integrins are required for mammary epithelial development and function, including survival, cell cycle, and polarity, as well as for the expression of mammary-specific genes. In the present study we looked at the role of integrins in mammary epithelial stem cell self-renewal. Methods We used an in vitro stem cell assay with primary mouse mammary epithelial cells isolated from genetically altered mice. This involved a 3D organoid assay, providing an opportunity to distinguish the stem cell- or luminal progenitor-driven organoids as structures with solid or hollow appearances, respectively. Results We demonstrate that integrins are essential for the maintenance and self-renewal of mammary epithelial stem cells. Moreover integrins activate the Rac1 signalling pathway in stem cells, which leads to the stimulation of a Wnt pathway, resulting in expression of β-catenin target genes such as Axin2 and Lef1. Conclusions Integrin/Rac signalling has a role in specifying the activation of a canonical Wnt pathway that is required for mammary epithelial stem cell self-renewal. Electronic supplementary material The online version of this article (10.1186/s13058-018-1048-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Safiah Olabi
- Wellcome Centre for Cell-Matrix Research and Manchester Breast Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK
| | - Ahmet Ucar
- Wellcome Centre for Cell-Matrix Research and Manchester Breast Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK
| | - Keith Brennan
- Wellcome Centre for Cell-Matrix Research and Manchester Breast Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK
| | - Charles H Streuli
- Wellcome Centre for Cell-Matrix Research and Manchester Breast Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PT, UK.
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18
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Epigenetic Silencing of THY1 Tracks the Acquisition of the Notch1–EGFR Signaling in a Xenograft Model of CD44+/CD24low/CD90+ Myoepithelial Cells. Mol Cancer Res 2018; 17:628-641. [DOI: 10.1158/1541-7786.mcr-17-0324] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/13/2017] [Accepted: 09/13/2018] [Indexed: 11/16/2022]
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19
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Grosse-Wilde A, Kuestner RE, Skelton SM, MacIntosh E, d'Hérouël AF, Ertaylan G, Del Sol A, Skupin A, Huang S. Loss of inter-cellular cooperation by complete epithelial-mesenchymal transition supports favorable outcomes in basal breast cancer patients. Oncotarget 2018; 9:20018-20033. [PMID: 29732000 PMCID: PMC5929443 DOI: 10.18632/oncotarget.25034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/02/2018] [Indexed: 12/13/2022] Open
Abstract
According to the sequential metastasis model, aggressive mesenchymal (M) metastasis-initiating cells (MICs) are generated by an epithelial-mesenchymal transition (EMT) which eventually is reversed by a mesenchymal-epithelial transition (MET) and outgrowth of life-threatening epithelial (E) macrometastases. Paradoxically, in breast cancer M signatures are linked with more favorable outcomes than E signatures, and M cells are often dispensable for metastasis in mouse models. Here we present evidence at the cellular and patient level for the cooperation metastasis model, according to which E cells are MICs, while M cells merely support E cell persistence through cooperation. We tracked the fates of co-cultured E and M clones and of fluorescent CDH1-promoter-driven cell lines reporting the E state derived from basal breast cancer HMLER cells. Cells were placed in suspension state and allowed to reattach and select an EMT cell fate. Flow cytometry, single cell and bulk gene expression analyses revealed that only pre-existing E cells generated E cells, mixed E/M populations, or stem-like hybrid E/M cells after suspension and that complete EMT manifest in M clones and CDH1-negative reporter cells resulted in loss of cell plasticity, suggesting full transdifferentiation. Mechanistically, E-M coculture experiments supported the persistence of pre-existing E cells where M cells inhibited EMT of E cells in a mutual cooperation via direct cell-cell contact. Consistently, M signatures were associated with more favorable patient outcomes compared to E signatures in breast cancer, specifically in basal breast cancer patients. These findings suggest a potential benefit of complete EMT for basal breast cancer patients.
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Affiliation(s)
| | | | | | | | - Aymeric Fouquier d'Hérouël
- Institute for Systems Biology, Seattle, WA, USA.,Luxembourg Centre for Systems Biomedicine, Esch-sur-Alzette, Luxembourg
| | - Gökhan Ertaylan
- Luxembourg Centre for Systems Biomedicine, Esch-sur-Alzette, Luxembourg.,Environmental Risk and Health Unit, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Antonio Del Sol
- Luxembourg Centre for Systems Biomedicine, Esch-sur-Alzette, Luxembourg
| | - Alexander Skupin
- Institute for Systems Biology, Seattle, WA, USA.,Luxembourg Centre for Systems Biomedicine, Esch-sur-Alzette, Luxembourg
| | - Sui Huang
- Institute for Systems Biology, Seattle, WA, USA
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20
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Belgorosky D, Fernández-Cabada T, Peñaherrera-Pazmiño AB, Langle Y, Booth R, Bhansali S, Pérez MS, Eiján AM, Lerner B. Analysis of tumoral spheres growing in a multichamber microfluidic device. J Cell Physiol 2018; 233:6327-6336. [PMID: 29574936 DOI: 10.1002/jcp.26519] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 02/02/2018] [Indexed: 11/10/2022]
Abstract
Lab on a Chip (LOC) farming systems have emerged as a powerful tool for single cell studies combined with a non-adherent cell culture substrate and single cell capture chips for the study of single cell derived tumor spheres. Cancer is characterized by its cellular heterogeneity where only a small population of cancer stem cells (CSCs) are responsible for tumor metastases and recurrences. Thus, the in vitro strategy to the formation of a single cell-derived sphere is an attractive alternative to identify CSCs. In this study, we test the effectiveness of microdevices for analysis of heterogeneity within CSC populations and its interaction with different components of the extracellular matrix. CSC could be identify using specific markers related to its pluripotency and self-renewal characteristics such as the transcription factor Oct-4 or the surface protein CD44. The results confirm the usefulness of LOC as an effective method for quantification of CSC, through the formation of spheres under conditions of low adhesion or growing on components of the extracellular matrix. The device used is also a good alternative for evaluating the individual growth of each sphere and further identification of these CSC markers by immunofluorescence. In conclusion, LOC devices have not only the already known advantages, but they are also a promising tool since they use small amounts of reagents and are under specific culture parameters. LOC devices could be considered as a novel technology to be used as a complement or replacement of traditional studies on culture plates.
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Affiliation(s)
- Denise Belgorosky
- Instituto de Oncología Angel H. Roffo, Universidad de Buenos Aires, Buenos Aires, Argentina.,Fellow at Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Tamara Fernández-Cabada
- Fellow at Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Universidad Tecnológica Nacional (UTN), Facultad Regional de Haedo, Paris, Buenos Aires, Argentina
| | - Ana Belén Peñaherrera-Pazmiño
- Fellow at Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Universidad Tecnológica Nacional (UTN), Facultad Regional de Haedo, Paris, Buenos Aires, Argentina
| | - Yanina Langle
- Instituto de Oncología Angel H. Roffo, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Ross Booth
- Millipore Sigma Corporation, Hayward, California
| | - Shekhar Bhansali
- Bio-MEMS and Microsystem Lab, Department of Electrical Engineering, University of South Florida, Tampa, Florida
| | - Maximiliano S Pérez
- Universidad Tecnológica Nacional (UTN), Facultad Regional de Haedo, Paris, Buenos Aires, Argentina.,Instituto de Ingeniería Biomédica, Facultad de Ingeniería, Universidad de Buenos Aires, (UBA), Buenos Aires, Argentina.,Member at Consejo Nacional de Investigaciones Cientificas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Ana María Eiján
- Instituto de Oncología Angel H. Roffo, Universidad de Buenos Aires, Buenos Aires, Argentina.,Member at Consejo Nacional de Investigaciones Cientificas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Betiana Lerner
- Universidad Tecnológica Nacional (UTN), Facultad Regional de Haedo, Paris, Buenos Aires, Argentina.,Instituto de Ingeniería Biomédica, Facultad de Ingeniería, Universidad de Buenos Aires, (UBA), Buenos Aires, Argentina.,Member at Consejo Nacional de Investigaciones Cientificas y Técnicas (CONICET), Buenos Aires, Argentina
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21
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Cereser B, Jansen M, Austin E, Elia G, McFarlane T, van Deurzen CHM, Sieuwerts AM, Daidone MG, Tadrous PJ, Wright NA, Jones L, McDonald SAC. Analysis of clonal expansions through the normal and premalignant human breast epithelium reveals the presence of luminal stem cells. J Pathol 2018; 244:61-70. [PMID: 28940516 PMCID: PMC5765426 DOI: 10.1002/path.4989] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/06/2017] [Accepted: 09/15/2017] [Indexed: 12/12/2022]
Abstract
It is widely accepted that the cell of origin of breast cancer is the adult mammary epithelial stem cell; however, demonstrating the presence and location of tissue stem cells in the human breast has proved difficult. Furthermore, we do not know the clonal architecture of the normal and premalignant mammary epithelium or its cellular hierarchy. Here, we use deficiency in the mitochondrial enzyme cytochrome c oxidase (CCO), typically caused by somatic mutations in the mitochondrial genome, as a means to perform lineage tracing in the human mammary epithelium. PCR sequencing of laser-capture microdissected cells in combination with immunohistochemistry for markers of lineage differentiation was performed to determine the clonal nature of the mammary epithelium. We have shown that in the normal human breast, clonal expansions (defined here by areas of CCO deficiency) are typically uncommon and of limited size, but can occur at any site within the adult mammary epithelium. The presence of a stem cell population was shown by demonstrating multi-lineage differentiation within CCO-deficient areas. Interestingly, we observed infrequent CCO deficiency that was restricted to luminal cells, suggesting that niche succession, and by inference stem cell location, is located within the luminal layer. CCO-deficient areas appeared large within areas of ductal carcinoma in situ, suggesting that the rate of clonal expansion was altered in the premalignant lesion. © 2017 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Biancastella Cereser
- Clonal Dynamics in Epithelia Laboratory, Centre for Tumour BiologyBarts Cancer Institute, Queen Mary University of LondonUK
| | - Marnix Jansen
- Epithelial Stem Cell Laboratory, Centre for Tumour BiologyBarts Cancer Institute, Queen Mary University of LondonUK
| | - Emily Austin
- Centre for Histopathology Laboratory, Barts Cancer InstituteQueen Mary University of LondonUK
| | - George Elia
- Centre for Histopathology Laboratory, Barts Cancer InstituteQueen Mary University of LondonUK
| | - Taneisha McFarlane
- Department of Surgery and Cancer, Imperial College LondonCharing Cross HospitalLondonUK
| | - Carolien HM van Deurzen
- Department of Pathology, Erasmus MC Cancer InstituteErasmus University Medical CenterRotterdamThe Netherlands
| | - Anieta M Sieuwerts
- Department of Medical Oncology, Erasmus MC Cancer InstituteErasmus University Medical Center, RotterdamThe Netherlands
| | - Maria G Daidone
- Department of Experimental Oncology and Molecular MedicineFondazione IRCCS Istituto Nazionale dei TumoriMilanItaly
| | - Paul J Tadrous
- Department of Cellular PathologyNorthwick Park HospitalLondonUK
| | - Nicholas A Wright
- Epithelial Stem Cell Laboratory, Centre for Tumour BiologyBarts Cancer Institute, Queen Mary University of LondonUK
| | - Louise Jones
- Breast Cancer Laboratory, Centre for Tumour BiologyBarts Cancer Institute, Queen Mary University of LondonUK
| | - Stuart AC McDonald
- Clonal Dynamics in Epithelia Laboratory, Centre for Tumour BiologyBarts Cancer Institute, Queen Mary University of LondonUK
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22
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Dong Q, Gao H, Shi Y, Zhang F, Gu X, Wu A, Wang D, Chen Y, Bandyopadhyay A, Yeh IT, Daniel BJ, Chen Y, Zou Y, Rebel VL, Walter CA, Lu J, Huang C, Sun LZ. Aging is associated with an expansion of CD49f hi mammary stem cells that show a decline in function and increased transformation potential. Aging (Albany NY) 2017; 8:2754-2776. [PMID: 27852980 PMCID: PMC5191868 DOI: 10.18632/aging.101082] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 10/26/2016] [Indexed: 12/18/2022]
Abstract
Breast cancer incidence increases during aging, yet the mechanism of age-associated mammary tumorigenesis is unclear. Mammary stem cells are believed to play an important role in breast tumorigenesis, but how their function changes with age is unknown. We compared mammary epithelial cells isolated from young and old mammary glands of different cohorts of C57BL6/J and BALB/c mice, and our findings revealed that old mammary glands were characterized by increased basal cell pool comprised of mostly CD49fhi cells, altered luminal-to-basal cell ratio, and irregular ductal morphology. More interestingly, basal stem cells in old mice were increased in frequency, but showed a functional decline of differentiation and increased neoplastic transformation potential. Gene signature enrichment analysis revealed a significant enrichment of a luminal cell gene expression signature in the basal stem cell-enriched population from old mice, suggesting some luminal cells were expressing basal markers. Immunofluorescence staining confirmed the presence of luminal cells with high CD49f expression in hyperplastic lesions implicating these cells as undergoing luminal to basal phenotypic changes during aging. Whole transcriptome analysis showed elevated immune and inflammatory responses in old basal stem cells and stromal cells, which may be the underlying cause for increased CD49fhi basal-like cells in aged glands.
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Affiliation(s)
- Qiaoxiang Dong
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA.,School of Laboratory Medicine and Life Science, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Hui Gao
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA.,School of Laboratory Medicine and Life Science, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Yuanshuo Shi
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA.,Institute of Environmental Safety and Human Health, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Fuchuang Zhang
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA.,Institute of Environmental Safety and Human Health, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Xiang Gu
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA
| | - Anqi Wu
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Danhan Wang
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Yuanhong Chen
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Abhik Bandyopadhyay
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA
| | - I-Tien Yeh
- Department of Pathology, University of Texas Health Science Center, San Antonio, TX 78299, USA
| | - Benjamin J Daniel
- Flow Cytometry Facility, University of Texas Health Science Center, San Antonio, TX 78299, USA
| | - Yidong Chen
- Department of Epidemiology and Biostatistics, University of Texas Health Science Center, San Antonio, TX 78299, USA.,Greehey Children's Cancer Research Institute, University of Texas Health Science Center, San Antonio, TX 78299, USA
| | - Yi Zou
- Greehey Children's Cancer Research Institute, University of Texas Health Science Center, San Antonio, TX 78299, USA
| | - Vivienne L Rebel
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA.,Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, TX 78299, USA.,Greehey Children's Cancer Research Institute, University of Texas Health Science Center, San Antonio, TX 78299, USA
| | - Christi A Walter
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA
| | - Jianxin Lu
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Changjiang Huang
- Institute of Environmental Safety and Human Health, Wenzhou Medical University, University Town, Wenzhou 325035, China
| | - Lu-Zhe Sun
- Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX 78299, USA.,Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, TX 78299, USA
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Abstract
AIM to establish a relationship between the main markers tumor stem cells (TSCs), CD44, and CD24, the level of tenascin C production, and chemoresistance in triple-negative breast cancer (BC). SUBJECTS AND METHODS Thirty biopsy specimens from triple-negative BC patients who had conventionally received preoperative chemotherapy followed by surgery were selected in the investigation. All the selected patients were conventionally assigned to neoadjuvant polychemotherapy (PCT) with paclitaxel and carboplatin. The surgical specimens were analyzed in relation to the degree of a tumor morphological response to PCT. The magnitude of the health-promoting effect of neoadjuvant therapy was evaluated according to the residual cancer burden (RCB) system using an on-line calculator; RCB was categorized into classes (from RCB-0 to RCB-III). The markers CD44, СD24, and tenascin C were identified by the standard immunoperoxidase method in the primary biopsies. RESULTS Varying morphological responses of triple-negative breast cancer to PCT were revealed, which showed resistance in 60% of the cases. The chemoresistance found in most (87%) cases coincided with the identification of the CD44+/CD24low/- profile. The detection of the higher production of the extracellular matrix tenascin C participating in the formation of the TSC niche fully combined with the CD44+/CD24low/- phenotype; while the maximum response to tenascin C was noted in the cases differing in not only a lack of responses to PCTs, but also in the most aggressive course in conjunction with metastatic disease. CONCLUSION Immunohistochemical analysis shows that the unique association between the CD44+/CD24low/- phenotype and the pronounced production of tenascin C may have a prognostic potential, prospectively indicating the inefficiency of neoadjuvant PCT, in particular that with platinum derivatives, which is used for the standard treatment of triple-negative BC. Taking into account the role of tenascin C in invasion, metastasis, and chemoresistance, it per se may be considered as a promising target for the targeted and/or combined therapy of triple-negative BC.
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Affiliation(s)
- O P Popova
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - S Yu Bogomazova
- Treatment and Rehabilitation Center, Ministry of Health of Russia, Moscow, Russia
| | - A A Ivanov
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
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24
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Juerß D, Zwar M, Giesen U, Nolte R, Kriesen S, Baiocco G, Puchalska M, van Goethem MJ, Manda K, Hildebrandt G. Comparative study of the effects of different radiation qualities on normal human breast cells. Radiat Oncol 2017; 12:159. [PMID: 28946898 PMCID: PMC5613446 DOI: 10.1186/s13014-017-0895-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 09/18/2017] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND As there is a growing number of long-term cancer survivors, the incidence of carcinogenesis as a late effect of radiotherapy is getting more and more into the focus. The risk for the development of secondary malignant neoplasms might be significantly increased due to exposure of healthy tissue outside of the target field to secondary neutrons, in particular in proton therapy. Thus far, the radiobiological effects of these neutrons and a comparison with photons on normal breast cells have not been sufficiently characterised. METHODS MCF10A cells were irradiated with doses of up to 2 Gy with neutrons of different energy spectra and X-rays for comparison. The biological effects of neutrons with a broad energy distribution ( = 5.8 MeV), monoenergetic neutrons (1.2 MeV, 0.56 MeV) and of the mixed field of gamma's and secondary neutrons ( = 70.5 MeV) produced by 190 MeV protons impinging on a water phantom, were analysed. The clonogenic survival and the DNA repair capacity were determined and values of relative biological effectiveness were compared. Furthermore, the influence of radiation on the sphere formation was observed to examine the radiation response of the potential fraction of stem like cells within the MCF10A cell population. RESULTS X-rays and neutrons caused dose-dependent decreases of survival fractions after irradiations with up to 2 Gy. Monoenergetic neutrons with an energy of 0.56 MeV had a higher effectiveness on the survival fraction with respect to neutrons with higher energies and to the mixed gamma - secondary neutron field induced by proton interactions in water. Similar effects were observed for the DNA repair capacity after exposure to ionising radiation (IR). Both experimental endpoints provided comparable values of the relative biological effectiveness. Significant changes in the sphere formation were notable following the various radiation qualities. CONCLUSION The present study compared the radiation response of MCF10A cells after IR with neutrons and photons. For the first time it was shown that monoenergetic neutrons with energies around 1 MeV have stronger radiobiological effects on normal human breast cells with respect to X rays, to neutrons with a broad energy distribution ( = 5.8 MeV), and to the mixed gamma - secondary neutron field given by interactions of 190 MeV protons in water. The results of the present study are highly relevant for further investigations of radiation-induced carcinogenesis and are very important in perspective for a better risk assessment after secondary neutron exposure in the field of conventional and proton radiotherapy.
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Affiliation(s)
- Dajana Juerß
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059 Rostock, Germany
| | - Monique Zwar
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059 Rostock, Germany
| | - Ulrich Giesen
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
| | - Ralf Nolte
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
| | - Stephan Kriesen
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059 Rostock, Germany
| | - Giorgio Baiocco
- Physics Department, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | - Monika Puchalska
- Technische Universität Wien, Atominstitut, Stadionallee 2, 1020 Vienna, Austria
| | - Marc-Jan van Goethem
- KVI - Center for Advanced Radiation Technology (KVI-CART), Zernikelaan 25, 9747 AA Groningen, The Netherlands
| | - Katrin Manda
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059 Rostock, Germany
| | - Guido Hildebrandt
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059 Rostock, Germany
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25
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O'Leary KA, Shea MP, Salituro S, Blohm CE, Schuler LA. Prolactin Alters the Mammary Epithelial Hierarchy, Increasing Progenitors and Facilitating Ovarian Steroid Action. Stem Cell Reports 2017; 9:1167-1179. [PMID: 28919264 PMCID: PMC5639259 DOI: 10.1016/j.stemcr.2017.08.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 08/17/2017] [Accepted: 08/18/2017] [Indexed: 01/01/2023] Open
Abstract
Hormones drive mammary development and function and play critical roles in breast cancer. Epidemiologic studies link prolactin (PRL) to increased risk for aggressive cancers that express estrogen receptor α (ERα). However, in contrast to ovarian steroids, PRL actions on the mammary gland outside of pregnancy are poorly understood. We employed the transgenic NRL-PRL model to examine the effects of PRL alone and with defined estrogen/progesterone exposure on stem/progenitor activity and regulatory networks that drive epithelial differentiation. PRL increased progenitors and modulated transcriptional programs, even without ovarian steroids, and with steroids further raised stem cell activity associated with elevated canonical Wnt signaling. However, despite facilitating some steroid actions, PRL opposed steroid-driven luminal maturation and increased CD61+ luminal cells. Our findings demonstrate that PRL can powerfully influence the epithelial hierarchy alone and temper the actions of ovarian steroids, which may underlie its role in the development of breast cancer.
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Affiliation(s)
- Kathleen A O'Leary
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Michael P Shea
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA; Molecular and Environmental Toxicology Graduate Program, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Stephanie Salituro
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Courtney E Blohm
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Linda A Schuler
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA; UW Comprehensive Cancer Center, University of Wisconsin-Madison, Madison, WI 53792, USA; Molecular and Environmental Toxicology Graduate Program, University of Wisconsin-Madison, Madison, WI 53706, USA.
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26
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Parodi DA, Greenfield M, Evans C, Chichura A, Alpaugh A, Williams J, Cyrus KC, Martin MB. Alteration of Mammary Gland Development and Gene Expression by In Utero Exposure to Cadmium. Int J Mol Sci 2017; 18:E1939. [PMID: 28891935 PMCID: PMC5618588 DOI: 10.3390/ijms18091939] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 09/01/2017] [Accepted: 09/05/2017] [Indexed: 01/31/2023] Open
Abstract
Environmental exposure to estrogens and estrogen like contaminants during early development is thought to contribute to the risk of developing breast cancer primarily due to an early onset of puberty; however, exposure during key developing windows may also influence the risk of developing the disease. The goal of this study was to ask whether in utero exposure to the metalloestrogen cadmium alters mammary gland development due to acceleration of puberty onset or to an effect on early development of the mammary gland. The results show that, in addition to advancing the onset of puberty, in utero exposure to the metalloestrogen cadmium altered mammary gland development prior to its effect on puberty onset. In utero exposure resulted in an expansion of the number of mammosphere-forming cells in the neonatal mammary gland and an increase in branching, epithelial cells, and density in the prepubertal mammary gland. In the postpubertal mammary gland, there was a further expansion of the mammary stem/progenitor cell population and overexpression of estrogen receptor-alpha (ERα) that was due to the overexpression and altered regulation of the ERα transcripts derived from exons O and OT in response to estradiol. These results suggest that in utero exposure to cadmium increases stem/progenitor cells, cell density, and expression of estrogen receptor-alpha that may contribute to the risk of developing breast cancer.
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Affiliation(s)
- Daniela A Parodi
- Departments of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20007, USA.
| | - Morgan Greenfield
- Department of Oncology, Georgetown University, Washington, DC 20007, USA.
| | - Claire Evans
- Departments of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20007, USA.
| | - Anna Chichura
- Department of Oncology, Georgetown University, Washington, DC 20007, USA.
| | - Alexandra Alpaugh
- Department of Oncology, Georgetown University, Washington, DC 20007, USA.
| | - James Williams
- Department of Oncology, Georgetown University, Washington, DC 20007, USA.
| | - Kedra C Cyrus
- Department of Oncology, Georgetown University, Washington, DC 20007, USA.
| | - Mary Beth Martin
- Departments of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20007, USA.
- Department of Oncology, Georgetown University, Washington, DC 20007, USA.
- Lombardi Comprehensive Cancer Center, Research Building, 3970 Reservoir Road NW, Washington, DC 20007, USA.
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27
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MicroRNA-200, associated with metastatic breast cancer, promotes traits of mammary luminal progenitor cells. Oncotarget 2017; 8:83384-83406. [PMID: 29137351 PMCID: PMC5663523 DOI: 10.18632/oncotarget.20698] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/25/2017] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs are critical regulators of gene networks in normal and abnormal biological processes. Focusing on invasive ductal breast cancer (IDC), we have found dysregulated expression in tumor samples of several microRNAs, including the miR-200 family, along progression from primary tumors to distant metastases, further reflected in higher blood levels of miR-200b and miR-7 in IDC patients with regional or distant metastases relative to patients with primary node-negative tumors. Forced expression of miR-200s in MCF10CA1h mammary cells induced an enhanced epithelial program, aldehyde dehydrogenase (ALDH) activity, mammosphere growth and ability to form branched tubuloalveolar structures while promoting orthotopic tumor growth and lung colonization in vivo. MiR-200s also induced the constitutive activation of the PI3K-Akt signaling through downregulation of PTEN, and the enhanced mammosphere growth and ALDH activity induced in MCF10CA1h cells by miR-200s required the activation of this signaling pathway. Interestingly, the morphology of tumors formed in vivo by cells expressing miR-200s was reminiscent of metaplastic breast cancer (MBC). Indeed, the epithelial components of MBC samples expressed significantly higher levels of miR-200s than their mesenchymal components and displayed a marker profile compatible with luminal progenitor cells. We propose that microRNAs of the miR-200 family promote traits of highly proliferative breast luminal progenitor cells, thereby exacerbating the growth and metastatic properties of transformed mammary epithelial cells.
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28
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Li B, Lu Y, Yu L, Han X, Wang H, Mao J, Shen J, Wang B, Tang J, Li C, Song B. miR-221/222 promote cancer stem-like cell properties and tumor growth of breast cancer via targeting PTEN and sustained Akt/NF-κB/COX-2 activation. Chem Biol Interact 2017; 277:33-42. [PMID: 28844858 DOI: 10.1016/j.cbi.2017.08.014] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/24/2017] [Accepted: 08/21/2017] [Indexed: 11/30/2022]
Abstract
MicroRNAs (miRNAs) play an important role in regulating cancer stem cell (CSC). Previous studies have shown that microRNA-221/222 (miR-221/222) cluster are involved in the propagation of breast cancer stem cell (BCSC), however, the underlying molecular mechanisms are still not fully understood. In this study, we found that miR-221/222 were overexpressed in highly aggressive breast cancer MDA-MB-231 cells, that are enriched in markers for epithelial-mesenchymal transition (EMT) and BCSCs, than in MCF-7 cells. Phosphatase and tensin homolog (PTEN) was confirmed to be the target of miR-221/222 in breast cancer cells. MiR-221/222 enhanced breast cancer cell growth, migration and invasion by downregulating PTEN. Importantly, both ectopic expression of miR-221/222 and PTEN knockdown increased the mammosphere formation capacity and the expression of the stemness marker ALDH1. MiR-221/222 lentivirus vector infected MCF-7 cells produced larger subcutaneous tumors, while shRNA vector of PTEN showed similar trend. Along with the downregulation of PTEN caused by miR-221/222 in the breast cancer cells and the xenograft tumor tissues, Akt phosphorylation (p-Akt), NF-κB p65 and phosphorylated p65 (p-p65), and cyclooxygenase-2 (COX-2) were all overexpressed compared to the negative control. Taken together, our findings indicate that miR-221/222 play a critical role in the propagation of BCSCs and tumor growth possibly through targeting PTEN, which in turn activating the Akt/NF-κB/COX-2 pathway. MiR-221/222 might represent the potential target of breast cancer therapy.
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Affiliation(s)
- Bailong Li
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China; Department of Clinical Medicine, Grade 2013, Dalian Medical University, No. 9 West Section, Lvshun South Road, Dalian 116044, China
| | - Ying Lu
- Teaching Laboratory of Morphology, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Lihui Yu
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Xiaocui Han
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Honghai Wang
- Teaching Affairs Department, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Jun Mao
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Jie Shen
- Teaching Laboratory of Morphology, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Bo Wang
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Jianwu Tang
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China
| | - Chunyan Li
- Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China.
| | - Bo Song
- Department of Pathology and Forensics, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China; Teaching Laboratory of Morphology, Dalian Medical University, No.9 West Section, Lvshun South Road, Dalian 116044, China.
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29
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Rauner G, Ledet MM, Van de Walle GR. Conserved and variable: Understanding mammary stem cells across species. Cytometry A 2017; 93:125-136. [PMID: 28834173 DOI: 10.1002/cyto.a.23190] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 07/25/2017] [Accepted: 07/27/2017] [Indexed: 01/16/2023]
Abstract
Postnatal mammary gland development requires the presence of mammary stem and progenitor cells (MaSC), which give rise to functional milk-secreting cells and regenerate the mammary epithelium with each cycle of lactation. These long-lived, tissue-resident MaSC are also targets for malignant transformation and may be cancer cells-of-origin. Consequently, MaSC are extensively researched in relation to their role and function in development, tissue regeneration, lactation, and breast cancer. The basic structure and function of the mammary gland are conserved among all mammalian species, from the most primitive to the most evolved. However, species vary greatly in their lactation strategies and mammary cancer incidence, making MaSC an interesting focus for comparative research. MaSC have been characterized in mice, to a lesser degree in humans, and to an even lesser degree in few additional mammals. They remain uncharacterized in most mammalian species, including "ancient" monotremes, marsupials, wild, and rare species, as well as in common and domestic species such as cats. Identification and comparison of MaSC across a large variety of species, particularly those with extreme lactational adaptations or low mammary cancer incidence, is expected to deepen our understanding of development and malignancy in the mammary gland. Here, we review the current status of MaSC characterization across species, and underline species variations in lactation and mammary cancer through which we may learn about the role of MaSC in these processes. © 2017 International Society for Advancement of Cytometry.
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Affiliation(s)
- Gat Rauner
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Hungerford Hill Road, Ithaca, New York 14853
| | - Melissa M Ledet
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Hungerford Hill Road, Ithaca, New York 14853
| | - Gerlinde R Van de Walle
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Hungerford Hill Road, Ithaca, New York 14853
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30
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Reprogramming to developmental plasticity in cancer stem cells. Dev Biol 2017; 430:266-274. [PMID: 28774727 DOI: 10.1016/j.ydbio.2017.07.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/26/2017] [Accepted: 07/30/2017] [Indexed: 12/12/2022]
Abstract
During development and throughout adult life, sub-populations of cells exist that exhibit phenotypic plasticity - the ability to differentiate into multiple lineages. This behaviour is important in embryogenesis, is exhibited in a more limited context by adult stem cells, and can be re-activated in cancer cells to drive important processes underlying tumour progression. A well-studied mechanism of phenotypic plasticity is the epithelial-to-mesenchymal transition (EMT), a process which has been observed in both normal and cancerous cells. The epigenetic and metabolic modifications necessary to facilitate phenotypic plasticity are first seen in development and can be re-activated both in normal regeneration and in cancer. In cancer, the re-activation of these mechanisms enables tumour cells to acquire a cancer stem cell (CSC) phenotype with enhanced ability to survive in hostile environments, resist therapeutic interventions, and undergo metastasis. However, recent research has suggested that plasticity may also expose weaknesses in cancer cells that could be exploited for future therapeutic development. More research is needed to identify developmental mechanisms that are active in cancer, so that these may be targeted to reduce tumour growth and metastasis and overcome therapeutic resistance.
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31
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Timmermans-Sprang EPM, Gracanin A, Mol JA. Molecular Signaling of Progesterone, Growth Hormone, Wnt, and HER in Mammary Glands of Dogs, Rodents, and Humans: New Treatment Target Identification. Front Vet Sci 2017; 4:53. [PMID: 28451590 PMCID: PMC5389977 DOI: 10.3389/fvets.2017.00053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 03/28/2017] [Indexed: 12/21/2022] Open
Abstract
Mammary tumors are the most common form of neoplasia in the bitch. Female dogs are protected when they are spayed before the first estrus cycle, but this effect readily disappears and is already absent when dogs are spayed after the second heat. As the ovaries are removed during spaying, ovarian steroids are assumed to play an essential role in tumor development. The sensitivity toward tumor development is already present during early life, which may be caused by early mutations in stem cells during the first estrus cycles. Later on in life, tumors arise that are mostly steroid-receptor positive, although a small subset of tumors overexpressing human epidermal growth factor 2 (HER2) and some lacking estrogen receptor, progesterone receptor (PR), and HER2 (triple negative) are present, as is the situation in humans. Progesterone (P4), acting through PR, is the major steroid involved in outgrowth of mammary tissue. PRs are expressed in two forms, the progesterone receptor A (PRA) and progesterone receptor B (PRB) isoforms derived from splice variants from a single gene. The dog and the whole family of canids have only a functional PRA isoform, whereas the PRB isoform, if expressed at all, is devoid of intrinsic biological activity. In human breast cancer, overexpression of the PRA isoform is related to more aggressive carcinomas making the dog a unique model to study PRA-related mammary cancer. Administration of P4 to adult dogs results in local mammary expression of growth hormone (GH) and wing less-type mouse mammary tumor virus integration site family 4 (Wnt4). Both proteins play a role in activation of mammary stem cells. In this review, we summarize what is known on P4, GH, and Wnt signaling in canine mammary cancer, how the family of HER receptors could interact with this signaling, and what this means for comparative and translational oncological aspects of human breast cancer development.
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Affiliation(s)
| | - Ana Gracanin
- Department of Clinical Sciences of Companion Animals, Utrecht University, Utrecht, Netherlands
| | - Jan A Mol
- Department of Clinical Sciences of Companion Animals, Utrecht University, Utrecht, Netherlands
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32
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Mammary stem cells: angels or demons in mammary gland? Signal Transduct Target Ther 2017; 2:16038. [PMID: 29263909 PMCID: PMC5661614 DOI: 10.1038/sigtrans.2016.38] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Revised: 12/04/2016] [Accepted: 12/07/2016] [Indexed: 02/08/2023] Open
Abstract
A highly dynamic development process exits within the epithelia of mammary gland, featuring morphogenetic variation during puberty, pregnancy, lactation, and regression. The identification of mammary stem cells (MaSCs) via lineage-tracing studies has substantiated a hierarchical organization of the mammary epithelia. A single MaSC is capable of reconstituting the entirely functional mammary gland upon orthotopic transplantation. Although different mammary cell subpopulations can be candidate cells-of-origin for distinct breast tumor subtypes, it still lacks experimental proofs whether MaSCs, the most primitive cells, are the ‘seeds’ of malignant transformation during most, if not all, tumorigenesis in the breast. Here, we review current knowledge of mammary epithelial hierarchy, highlighting the roles of mammary stem/progenitor cells and breast cancer stem cells (BCSCs) along with their key molecular regulators in organ development and cancer evolution. Clarifying these issues will pave the way for developing novel interventions toward stem/progenitor cells in either prevention or treatment of breast cancer (BrCa).
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Li H, Zhang X, Jiang X, Ji X. The expression and function of epithelial membrane protein 1 in laryngeal carcinoma. Int J Oncol 2016; 50:141-148. [PMID: 27909719 DOI: 10.3892/ijo.2016.3782] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 11/17/2016] [Indexed: 11/06/2022] Open
Abstract
In this study, we compared the expression of epithelial membrane protein 1 (EMP1) on the steady-state mRNA level (by quantitative real-time PCR) and on the protein level (by western immunoblot and immunohistochemistry) in 51 pairs of laryngeal carcinoma tissues and matched cancer-free peritumor tissues, and we analyzed the correlation between EMP1 expression and different clinicopathological factors. Furthermore, we ectopically expressed EMP1 in human laryngeal carcinoma Hep-2 cells and examined the effects on cell viability, apoptosis, colonogenicity, and motility, by MTT assay, flow cytometry, colony formation assay and Transwell migration assay, respectively. EMP1 expression (on both the mRNA and protein levels) was significantly lower in the cancer tissues than in matched peritumor tissues (P<0.05). In laryngeal cancers, the level of EMP1 protein was correlated with histological grade (P<0.05), but not with age, gender, clinical stage, cancer subtype or lymph node metastasis (P>0.05). Functionally, ectopic expression of EMP1 in Hep-2 cells significantly reduced cell viability, colony formation, and migration, but enhanced apoptosis. Therefore, EMP1 is a tumor suppressor in laryngeal carcinoma. Boosting EMP1 expression in laryngeal carcinoma initiates multiple anticancer phenotypes and thus presents a promising therapeutic strategy for laryngeal cancer.
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Affiliation(s)
- Hong Li
- Department of Otorhinolaryngology Head and Neck Surgery, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110032, P.R. China
| | - Xiaowen Zhang
- Department of Genetics, Teaching and Learning Office, China Medical University, Shenyang, Liaoning, P.R. China
| | - Xuejun Jiang
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xu Ji
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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Cheng YH, Chen YC, Brien R, Yoon E. Scaling and automation of a high-throughput single-cell-derived tumor sphere assay chip. LAB ON A CHIP 2016; 16:3708-17. [PMID: 27510097 PMCID: PMC6559352 DOI: 10.1039/c6lc00778c] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Recent research suggests that cancer stem-like cells (CSCs) are the key subpopulation for tumor relapse and metastasis. Due to cancer plasticity in surface antigen and enzymatic activity markers, functional tumorsphere assays are promising alternatives for CSC identification. To reliably quantify rare CSCs (1-5%), thousands of single-cell suspension cultures are required. While microfluidics is a powerful tool in handling single cells, previous works provide limited throughput and lack automatic data analysis capability required for high-throughput studies. In this study, we present the scaling and automation of high-throughput single-cell-derived tumor sphere assay chips, facilitating the tracking of up to ∼10 000 cells on a chip with ∼76.5% capture rate. The presented cell capture scheme guarantees sampling a representative population from the bulk cells. To analyze thousands of single-cells with a variety of fluorescent intensities, a highly adaptable analysis program was developed for cell/sphere counting and size measurement. Using a Pluronic® F108 (poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)) coating on polydimethylsiloxane (PDMS), a suspension culture environment was created to test a controversial hypothesis: whether larger or smaller cells are more stem-like defined by the capability to form single-cell-derived spheres. Different cell lines showed different correlations between sphere formation rate and initial cell size, suggesting heterogeneity in pathway regulation among breast cancer cell lines. More interestingly, by monitoring hundreds of spheres, we identified heterogeneity in sphere growth dynamics, indicating the cellular heterogeneity even within CSCs. These preliminary results highlight the power of unprecedented high-throughput and automation in CSC studies.
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Affiliation(s)
- Yu-Heng Cheng
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, MI 48109-2122, USA.
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Chen YC, Ingram PN, Fouladdel S, McDermott SP, Azizi E, Wicha MS, Yoon E. High-Throughput Single-Cell Derived Sphere Formation for Cancer Stem-Like Cell Identification and Analysis. Sci Rep 2016; 6:27301. [PMID: 27292795 PMCID: PMC4904376 DOI: 10.1038/srep27301] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 04/27/2016] [Indexed: 01/05/2023] Open
Abstract
Considerable evidence suggests that many malignancies are driven by a cellular compartment that displays stem cell properties. Cancer stem-like cells (CSCs) can be identified by expression of cell surface markers or enzymatic activity, but these methods are limited by phenotypic heterogeneity and plasticity of CSCs. An alternative phenotypic methodology based on in-vitro sphere formation has been developed, but it is typically labor-intensive and low-throughput. In this work, we present a 1,024-microchamber microfluidic platform for single-cell derived sphere formation. Utilizing a hydrodynamic capturing scheme, more than 70% of the microchambers capture only one cell, allowing for monitoring of sphere formation from heterogeneous cancer cell populations for identification of CSCs. Single-cell derived spheres can be retrieved and dissociated for single-cell analysis using a custom 96-gene panel to probe heterogeneity within the clonal CSC spheres. This microfluidic platform provides reliable and high-throughput sphere formation for CSC identification and downstream clonal analysis.
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MESH Headings
- Animals
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Line, Tumor
- Female
- Humans
- Hydrogels/chemistry
- Lab-On-A-Chip Devices
- MCF-7 Cells
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Microfluidics/instrumentation
- Microfluidics/methods
- Microscopy, Electron, Scanning
- Neoplastic Stem Cells/cytology
- Neoplastic Stem Cells/metabolism
- Polyhydroxyethyl Methacrylate/chemistry
- Receptors, Notch/genetics
- Receptors, Notch/metabolism
- Single-Cell Analysis/methods
- Spheroids, Cellular/cytology
- Spheroids, Cellular/metabolism
- Transplantation, Heterologous
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Affiliation(s)
- Yu-Chih Chen
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, MI 48109-2122, USA
- University of Michigan Comprehensive Cancer Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5940, USA
| | - Patrick N. Ingram
- Department of Biomedical Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109-2099, USA
| | - Shamileh Fouladdel
- University of Michigan Comprehensive Cancer Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5940, USA
| | - Sean P. McDermott
- University of Michigan Comprehensive Cancer Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5940, USA
| | - Ebrahim Azizi
- University of Michigan Comprehensive Cancer Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5940, USA
| | - Max S. Wicha
- University of Michigan Comprehensive Cancer Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5940, USA
| | - Euisik Yoon
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, MI 48109-2122, USA
- Department of Biomedical Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109-2099, USA
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Abstract
Cells within the tumor are highly heterogeneous. Only a small portion of the cells within the tumor is capable to generate a new tumor. These cells are called cancer stem cells. Theoretically, cancer stem cells are originally from normal stem cells or early progenitor cells which accumulate the random mutations and undergo an altered version of the normal differentiation process. The cancer stem cell drives tumor progression and its recurrence. Thus, the technique to identify and purify the cancer stem cell is the key in any cancer stem cell research. In this protocol, we provide the basic technology of identification and purification of breast cancer stem cells as well as further functional assays to help the researchers achieve their research goals.
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Affiliation(s)
- Xuanmao Jiao
- Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Bluemle Life Sciences Building, 233 South 10th Street, Philadelphia, PA, 19107, USA
| | - Albert A Rizvanov
- Kazan Federal University, 18 Kremlyovskaya St, Kazan, Republic of Tatarstan, 420008, Russia
| | - Massimo Cristofanilli
- Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Bluemle Life Sciences Building, 233 South 10th Street, Philadelphia, PA, 19107, USA
| | - Regina R Miftakhova
- Kazan Federal University, 18 Kremlyovskaya St, Kazan, Republic of Tatarstan, 420008, Russia
| | - Richard G Pestell
- Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Bluemle Life Sciences Building, 233 South 10th Street, Philadelphia, PA, 19107, USA.
- Kazan Federal University, 18 Kremlyovskaya St, Kazan, Republic of Tatarstan, 420008, Russia.
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Gordon N, Skinner AM, Pommier RF, Schillace RV, O'Neill S, Peckham JL, Muller P, Condron ME, Donovan C, Naik A, Hansen J, Pommier SJ. Gene expression signatures of breast cancer stem and progenitor cells do not exhibit features of Warburg metabolism. Stem Cell Res Ther 2015; 6:157. [PMID: 26316122 PMCID: PMC4552365 DOI: 10.1186/s13287-015-0153-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 06/05/2015] [Accepted: 08/11/2015] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Cancers are believed to adapt to continual changes in glucose and oxygen availability by relying almost exclusively on glycolytic metabolism for energy (i.e. the Warburg effect). The process by which breast cancers sustain growth in avascular tissue is thought to be mediated via aberrant hypoxia response with ensuing shifts in glycolytic metabolism. Given their role in initiating and perpetuating tumors, we sought to determine whether breast cancer stem and progenitor cells play an instrumental role in this adaptive metabolic response. METHODS Breast cancer stem/progenitor cells were isolated from invasive ductal carcinomas, and benign stem cells (SC) were isolated from reduction mammoplasty tissues. Relative expression of 33 genes involved in hypoxia and glucose metabolism was evaluated in flow cytometrically isolated stem and progenitor cell populations. Significance between cohorts and cell populations was determined using Student's 2-tailed t test. RESULTS While benign stem/progenitor cells exhibited few significant inter-group differences in expression of genes involved in hypoxia regulation or glucose metabolism, breast cancer stem/progenitor cells demonstrated significant inter-group variability. Breast cancer stem/progenitor cells adapted to microenvironments through changes in stem cell numbers and transcription of glycolytic genes. One of four breast cancer stem/progenitor cells subpopulations exhibited an aerobic glycolysis gene expression signature. This subpopulation comprises the majority of the tumor and therefore best reflects invasive ductal carcinoma tumor biology. Although PI3K/AKT mutations are associated with increased proliferation of breast cancer cells, mutations in breast cancer stem/progenitor cells subpopulations did not correlate with changes in metabolic gene expression. CONCLUSIONS The adaptive capacity of breast cancer stem/progenitor cells may enable tumors to survive variable conditions encountered during progressive stages of cancer growth.
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Affiliation(s)
- Nicole Gordon
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Amy M Skinner
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Rodney F Pommier
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Robynn V Schillace
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Steven O'Neill
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Jennifer L Peckham
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Patrick Muller
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Mary E Condron
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Cory Donovan
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Arpana Naik
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
| | - Juliana Hansen
- Department of Surgery, Division of Plastic & Reconstructive Surgery, Oregon Health & Science University, Portland, OR, USA.
| | - SuEllen J Pommier
- Department of Surgery, Division of Surgical Oncology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mail Code L619, Portland, OR, 97239, USA.
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Clonogenic assay allows for selection of a primitive mammary epithelial cell population in bovine. Exp Cell Res 2015; 338:245-50. [PMID: 26321394 DOI: 10.1016/j.yexcr.2015.08.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/25/2015] [Accepted: 08/26/2015] [Indexed: 01/23/2023]
Abstract
Adult mammary stem cells have been identified in several species including the bovine. They are responsible for the development of the gland and for cyclic remodeling during estrous cycles and pregnancy. Epithelial cell subpopulations exist within the mammary gland. We and others showed previously that the Colony Forming Cell (CFC) assay can be used to detect lineage-restricted mammary progenitors. We carried out CFCs with bovine mammary cells and manually separated colonies with specific morphologies associated with either a luminal or a myoepithelial phenotype. Expression of specific markers was assessed by immunocytochemistry or by flow cytometry to confirm that the manual separation resulted in isolation of phenotipically different cells. When transplanted in recipient immunodeficient mice, we found that only myoepithelial-like colonies gave rise to outgrowths that resembled bovine mammary alveoli, thus proving that adult stem cells were maintained during culture and segregated with myoepithelial cells. After recovery of the cells from the transplanted mice and subsequent progenitor content analysis, we found a tendency to detect a higher progenitor frequency when myoepithelial-like colonies were transplanted. We here demonstrate that bovine adult mammary stem cells can be sustained in short-term culture and that they can be enriched by manually selecting for basal-like morphology.
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Du F, Yuan P, Wang T, Zhao J, Zhao Z, Luo Y, Xu B. The Significance and Therapeutic Potential of GATA3 Expression and Mutation in Breast Cancer: A Systematic Review. Med Res Rev 2015; 35:1300-15. [PMID: 26313026 DOI: 10.1002/med.21362] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/12/2015] [Accepted: 07/23/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Feng Du
- Department of Medical Oncology, Cancer Hospital; Chinese Academy of Medical Sciences, Peking Union Medical College; Beijing 100021 China
| | - Peng Yuan
- Department of Medical Oncology, Cancer Hospital; Chinese Academy of Medical Sciences, Peking Union Medical College; Beijing 100021 China
| | - Teng Wang
- Tumor Marker Research Center, Cancer Institute and Hospital; Chinese Academy of Medical Sciences, Peking Union Medical College; Beijing 100191 China
| | - Jiuda Zhao
- Department of Medical Oncology, Cancer Hospital; Chinese Academy of Medical Sciences, Peking Union Medical College; Beijing 100021 China
| | - Zitong Zhao
- State Key Laboratory of Molecular Oncology, Cancer Institute and Hospital; Chinese Academy of Medical Sciences, Peking Union Medical College; Beijing 100191 China
| | - Yang Luo
- Department of Medical Oncology, Cancer Hospital; Chinese Academy of Medical Sciences, Peking Union Medical College; Beijing 100021 China
| | - Binghe Xu
- Department of Medical Oncology, Cancer Hospital; Chinese Academy of Medical Sciences, Peking Union Medical College; Beijing 100021 China
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Rowson-Hodel AR, Manjarin R, Trott JF, Cardiff RD, Borowsky AD, Hovey RC. Neoplastic transformation of porcine mammary epithelial cells in vitro and tumor formation in vivo. BMC Cancer 2015; 15:562. [PMID: 26228788 PMCID: PMC4520266 DOI: 10.1186/s12885-015-1572-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 07/17/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The mammary glands of pigs share many functional and morphological similarities with the breasts of humans, raising the potential of their utility for research into the mechanisms underlying normal mammary function and breast carcinogenesis. Here we sought to establish a model for the efficient manipulation and transformation of porcine mammary epithelial cells (pMEC) in vitro and tumor growth in vivo. METHODS We utilized a vector encoding the red florescent protein tdTomato to transduce populations of pMEC from Yorkshire -Hampshire crossbred female pigs in vitro and in vivo. Populations of primary pMEC were then separated by FACS using markers to distinguish epithelial cells (CD140a-) from stromal cells (CD140a+), with or without further enrichment for basal and luminal progenitor cells (CD49f+). These separated pMEC populations were transduced by lentivirus encoding murine polyomavirus T antigens (Tag) and tdTomato and engrafted to orthotopic or ectopic sites in immunodeficient NOD.Cg-Prkdc (scid) Il2rg (tm1Wjl) /SzJ (NSG) mice. RESULTS We demonstrated that lentivirus effectively transduces pMEC in vitro and in vivo. We further established that lentivirus can be used for oncogenic-transformation of pMEC ex vivo for generating mammary tumors in vivo. Oncogenic transformation was confirmed in vitro by anchorage-independent growth, increased cell proliferation, and expression of CDKN2A, cyclin A2 and p53 alongside decreased phosphorylation of Rb. Moreover, Tag-transformed CD140a- and CD140a-CD49f + pMECs developed site-specific tumors of differing histopathologies in vivo. CONCLUSIONS Herein we establish a model for the transduction and oncogenic transformation of pMEC. This is the first report describing a porcine model of mammary epithelial cell tumorigenesis that can be applied to the study of human breast cancers.
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Affiliation(s)
- A R Rowson-Hodel
- Department of Animal Science, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA.
- Present Address: Department of Biochemistry and Molecular Medicine, University of California Davis School of Medicine, Sacramento, CA, USA.
| | - R Manjarin
- Department of Animal Science, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA.
- Present Address: USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX, USA.
| | - J F Trott
- Department of Animal Science, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA.
| | - R D Cardiff
- Center for Comparative Medicine, University of California Davis, One Shields Avenue, Davis, CA, USA.
| | - A D Borowsky
- Center for Comparative Medicine, University of California Davis, One Shields Avenue, Davis, CA, USA.
| | - R C Hovey
- Department of Animal Science, University of California Davis, One Shields Avenue, Davis, CA, 95616, USA.
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Parodi DA, Greenfield M, Evans C, Chichura A, Alpaugh A, Williams J, Martin MB. Alteration of mammary gland development and gene expression by in utero exposure to arsenic. Reprod Toxicol 2015; 54:66-75. [PMID: 25543096 PMCID: PMC4465030 DOI: 10.1016/j.reprotox.2014.12.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 12/07/2014] [Accepted: 12/16/2014] [Indexed: 01/02/2023]
Abstract
Early life exposure to estrogens and estrogen like contaminants in the environment is thought to contribute to the early onset of puberty and consequently increases the risk of developing breast cancer in the exposed female. The results of this study show that in utero exposure to the metalloestrogen arsenite altered mammary gland development prior to its effect on puberty onset. In the prepubertal gland, in utero exposure resulted in an increase in the number of mammosphere-forming cells and an increase in branching, epithelial cells, and density. In the postpubertal gland, in utero exposure resulted in the overexpression of estrogen receptor-alpha (ERα) that was due to the increased and altered response of the ERα transcripts derived from exons O and OT to estradiol. These results suggest that, in addition to advancing puberty onset, in utero exposure to arsenite alters the pre- and postpubertal development of the mammary gland and possibly, the risk of developing breast cancer.
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Affiliation(s)
- Daniela A Parodi
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20007, USA
| | - Morgan Greenfield
- Department of Oncology, Georgetown University, Washington, DC 20007, USA
| | - Claire Evans
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20007, USA
| | - Anna Chichura
- Department of Oncology, Georgetown University, Washington, DC 20007, USA
| | - Alexandra Alpaugh
- Department of Oncology, Georgetown University, Washington, DC 20007, USA
| | - James Williams
- Department of Oncology, Georgetown University, Washington, DC 20007, USA
| | - Mary Beth Martin
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20007, USA; Department of Oncology, Georgetown University, Washington, DC 20007, USA.
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Chiang HC, Elledge R, Larson P, Jatoi I, Li R, Hu Y. Effects of Radiation Therapy on Breast Epithelial Cells in BRCA1/2 Mutation Carriers. BREAST CANCER-BASIC AND CLINICAL RESEARCH 2015; 9:25-9. [PMID: 26052229 PMCID: PMC4454133 DOI: 10.4137/bcbcr.s26774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 04/27/2015] [Accepted: 04/29/2015] [Indexed: 12/12/2022]
Abstract
Women carrying BRCA1 and BRCA2 mutations have significantly elevated risk of developing breast and ovarian cancers. BRCA1-associated breast cancer likely originates from progenitors of the luminal epithelial lineage. Recent studies indicate that radiation therapy (RT) for BRCA1 cancer patients is associated with lower incidence of developing subsequent ipsilateral breast cancer. In the current study, we analyzed tumor-free breast tissue procured via prophylactic bilateral mastectomy from three BRCA1 and one BRCA2 mutation carriers, who had been previously treated with RT for unilateral breast cancers. Freshly isolated breast cells from the irradiated and nonirradiated breast tissue of the same individuals were subjected to flow cytometry, using established cell-surface markers. Two out of the three BRCA1 carriers and one BRCA2 carrier exhibited significantly diminished luminal cell population in the irradiated breast versus the nonirradiated side. There was also RT-associated reduction in the colony-forming ability of the breast epithelial cells. Our finding suggests that prior RT could result in the depletion of the luminal epithelial compartment and thus reduced incidence of BRCA1/2-associated breast cancer.
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Affiliation(s)
- Huai-Chin Chiang
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Richard Elledge
- Department of Medicine, Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Paula Larson
- Methodist Healthcare System, San Antonio, TX, USA
| | - Ismail Jatoi
- Division of Surgical Oncology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Rong Li
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Yanfen Hu
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
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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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44
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Zhou X, Wang G, Sun Y. A reliable parameter to standardize the scoring of stem cell spheres. PLoS One 2015; 10:e0127348. [PMID: 25973895 PMCID: PMC4431815 DOI: 10.1371/journal.pone.0127348] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 04/14/2015] [Indexed: 11/19/2022] Open
Abstract
Sphere formation assay is widely used in selection and enrichment of normal stem cells or cancer stem cells (CSCs), also known as tumor initiating cells (TICs), based on their ability to grow in serum-free suspension culture for clonal proliferation. However, there is no standardized parameter to accurately score the spheres, which should be reflected by both the number and size of the spheres. Here we define a novel parameter, designated as Standardized Sphere Score (SSS), which is expressed by the total volume of selected spheres divided by the number of cells initially plated. SSS was validated in quantification of both tumor spheres from cancer cell lines and embryonic bodies (EB) from mouse embryonic stem cells with high sensitivity and reproducibility.
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Affiliation(s)
- Xiaochen Zhou
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Gongxian Wang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
- * E-mail: (YS); (GW)
| | - Yi Sun
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, United States of America
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, P. R. China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China
- * E-mail: (YS); (GW)
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Lombardo Y, de Giorgio A, Coombes CR, Stebbing J, Castellano L. Mammosphere formation assay from human breast cancer tissues and cell lines. J Vis Exp 2015:52671. [PMID: 25867607 PMCID: PMC4401367 DOI: 10.3791/52671] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Similar to healthy tissues, many blood and solid malignancies are now thought to be organised hierarchically, with a subset of stem-like cancer cells that self-renew while giving rise to more differentiated progeny. Understanding and targeting these cancer stem cells in breast cancer, which may possess enhanced chemo- and radio-resistance compared to the non-stem tumor bulk, has become an important research area. Markers including CD44, CD24, and ALDH activity can be assessed using fluorescence activated cell sorting (FACS) to prospectively isolate cells that display enhanced tumorigenicity when implanted into immunocompromised mice: the mammosphere assay has also become widely used for its ability to retrospectively identify sphere-forming cells that develop from single stem cell-like clones. Here we outline approaches for the appropriate culturing of mammospheres from cell lines or primary patient samples, their passaging, and calculations to estimate sphere forming efficiency (SFE). First we discuss key considerations and pitfalls in the appropriate planning and interpretation of mammosphere experiments.
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Huh SJ, Clement K, Jee D, Merlini A, Choudhury S, Maruyama R, Yoo R, Chytil A, Boyle P, Ran FA, Moses HL, Barcellos-Hoff MH, Jackson-Grusby L, Meissner A, Polyak K. Age- and pregnancy-associated DNA methylation changes in mammary epithelial cells. Stem Cell Reports 2015; 4:297-311. [PMID: 25619437 PMCID: PMC4325231 DOI: 10.1016/j.stemcr.2014.12.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 12/16/2014] [Accepted: 12/16/2014] [Indexed: 12/13/2022] Open
Abstract
Postnatal mammary gland development and differentiation occur during puberty and pregnancy. To explore the role of DNA methylation in these processes, we determined the genome-wide DNA methylation and gene expression profiles of CD24(+)CD61(+)CD29(hi), CD24(+)CD61(+)CD29(lo), and CD24(+)CD61(-)CD29(lo) cell populations that were previously associated with distinct biological properties at different ages and reproductive stages. We found that pregnancy had the most significant effects on CD24(+)CD61(+)CD29(hi) and CD24(+)CD61(+)CD29(lo) cells, inducing distinct epigenetic states that were maintained through life. Integrated analysis of gene expression, DNA methylation, and histone modification profiles revealed cell-type- and reproductive-stage-specific changes. We identified p27 and TGFβ signaling as key regulators of CD24(+)CD61(+)CD29(lo) cell proliferation, based on their expression patterns and results from mammary gland explant cultures. Our results suggest that relatively minor changes in DNA methylation occur during luminal differentiation compared with the effects of pregnancy on CD24(+)CD61(+)CD29(hi) and CD24(+)CD61(+)CD29(lo) cells.
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Affiliation(s)
- Sung Jin Huh
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Kendell Clement
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - David Jee
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Alessandra Merlini
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Unit of Immunology and General Pathology, Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy
| | - Sibgat Choudhury
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Reo Maruyama
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Ronnie Yoo
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Children's Hospital Boston, Boston, MA 02115, USA
| | - Anna Chytil
- Department of Cancer Biology and Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Patrick Boyle
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Fei Ann Ran
- Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Children's Hospital Boston, Boston, MA 02115, USA
| | - Harold L Moses
- Department of Cancer Biology and Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Mary Helen Barcellos-Hoff
- Departments of Radiation Oncology and Cell Biology, New York University School of Medicine, New York, NY 10016, USA
| | - Laurie Jackson-Grusby
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Children's Hospital Boston, Boston, MA 02115, USA
| | - Alexander Meissner
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
| | - Kornelia Polyak
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA.
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Kaanta AS, Virtanen C, Selfors LM, Brugge JS, Neel BG. Evidence for a multipotent mammary progenitor with pregnancy-specific activity. Breast Cancer Res 2014; 15:R65. [PMID: 23947835 PMCID: PMC3979108 DOI: 10.1186/bcr3459] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 07/22/2013] [Indexed: 12/12/2022] Open
Abstract
Introduction The mouse mammary gland provides a powerful model system for studying processes involved in epithelial tissue development. Although markers that enrich for mammary stem cells and progenitors have been identified, our understanding of the mammary developmental hierarchy remains incomplete. Methods We used the MMTV promoter linked to the reverse tetracycline transactivator to induce H2BGFP expression in the mouse mammary gland. Mammary epithelial cells (MECs) from virgin mice were sorted by flow cytometry for expression of the mammary stem cell/progenitor markers CD24 and CD29, and H2BGFP. Sorted populations were analyzed for in vivo repopulation ability, expression of mammary lineage markers, and differential gene expression. Results The reconstituting activity of CD24+/CD29+ cells in cleared fat pad transplantation assays was not distinguished in GFP+ compared to GFP- subpopulations. However, within the CD24+/CD29lo luminal progenitor-enriched population, H2BGFP+, but not H2BGFP-, MECs formed mammary structures in transplantation assays; moreover, this activity was dramatically enhanced in pregnant recipients. These outgrowths contained luminal and myoepithelial mammary lineages and produced milk, but lacked the capacity for serial transplantation. Transcriptional microarray analysis revealed that H2BGFP+/CD24+/CD29lo MECs are distinct from H2BGFP-/CD24+/CD29lo MECs and enriched for gene expression signatures with both the stem cell (CD24+/CD29+) and luminal progenitor (CD24+/CD29lo/CD61+) compartments. Conclusions We have identified a population of MECs containing pregnancy-activated multipotent progenitors that are present in the virgin mammary gland and contribute to the expansion of the mammary gland during pregnancy.
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Integrin αvβ3 drives slug activation and stemness in the pregnant and neoplastic mammary gland. Dev Cell 2014; 30:295-308. [PMID: 25117682 DOI: 10.1016/j.devcel.2014.06.005] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Revised: 04/08/2014] [Accepted: 06/06/2014] [Indexed: 01/14/2023]
Abstract
Although integrin αvβ3 is linked to cancer progression, its role in epithelial development is unclear. Here, we show that αvβ3 plays a critical role in adult mammary stem cells (MaSCs) during pregnancy. Whereas αvβ3 is a luminal progenitor marker in the virgin gland, we noted increased αvβ3 expression in MaSCs at midpregnancy. Accordingly, mice lacking αvβ3 or expressing a signaling-deficient receptor showed defective mammary gland morphogenesis during pregnancy. This was associated with decreased MaSC expansion, clonogenicity, and expression of Slug, a master regulator of MaSCs. Surprisingly, αvβ3-deficient mice displayed normal development of the virgin gland with no effect on luminal progenitors. Transforming growth factor β2 (TGF-β2) induced αvβ3 expression, enhancing Slug nuclear accumulation and MaSC clonogenicity. In human breast cancer cells, αvβ3 was necessary and sufficient for Slug activation, tumorsphere formation, and tumor initiation. Thus, pregnancy-associated MaSCs require a TGF-β2/αvβ3/Slug pathway, which may contribute to breast cancer progression and stemness.
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Arendt LM, Keller PJ, Skibinski A, Goncalves K, Naber SP, Buchsbaum RJ, Gilmore H, Come SE, Kuperwasser C. Anatomical localization of progenitor cells in human breast tissue reveals enrichment of uncommitted cells within immature lobules. Breast Cancer Res 2014; 16:453. [PMID: 25315014 PMCID: PMC4303132 DOI: 10.1186/s13058-014-0453-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 10/01/2014] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Lineage tracing studies in mice have revealed the localization and existence of lineage-restricted mammary epithelial progenitor cells that functionally contribute to expansive growth during puberty and differentiation during pregnancy. However, extensive anatomical differences between mouse and human mammary tissues preclude the direct translation of rodent findings to the human breast. Therefore, here we characterize the mammary progenitor cell hierarchy and identify the anatomic location of progenitor cells within human breast tissues. METHODS Mammary epithelial cells (MECs) were isolated from disease-free reduction mammoplasty tissues and assayed for stem/progenitor activity in vitro and in vivo. MECs were sorted and evaluated for growth on collagen and expression of lineages markers. Breast lobules were microdissected and individually characterized based on lineage markers and steroid receptor expression to identify the anatomic location of progenitor cells. Spanning-tree progression analysis of density-normalized events (SPADE) was used to identify the cellular hierarchy of MECs within lobules from high-dimensional cytometry data. RESULTS Integrating multiple assays for progenitor activity, we identified the presence of luminal alveolar and basal ductal progenitors. Further, we show that Type I lobules of the human breast were the least mature, demonstrating an unrestricted pattern of expression of luminal and basal lineage markers. Consistent with this, SPADE analysis revealed that immature lobules were enriched for basal progenitor cells, while mature lobules consisted of increased hierarchal complexity of cells within the luminal lineages. CONCLUSIONS These results reveal underlying differences in the human breast epithelial hierarchy and suggest that with increasing glandular maturity, the epithelial hierarchy also becomes more complex.
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Rauner G, Barash I. Xanthosine administration does not affect the proportion of epithelial stem cells in bovine mammary tissue, but has a latent negative effect on cell proliferation. Exp Cell Res 2014; 328:186-196. [DOI: 10.1016/j.yexcr.2014.06.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 06/01/2014] [Accepted: 06/22/2014] [Indexed: 12/31/2022]
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