151
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Xu R, Chen L, Yang WT. Aberrantly elevated Bmi1 promotes cervical cancer tumorigenicity and tumor sphere formation via enhanced transcriptional regulation of Sox2 genes. Oncol Rep 2019; 42:688-696. [PMID: 31173263 PMCID: PMC6609343 DOI: 10.3892/or.2019.7188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 05/30/2019] [Indexed: 12/24/2022] Open
Abstract
The exact molecular mechanisms underlying cervical tumorigenesis are poorly understood. Polycomb complex protein Bmi1 (Bmi1) is involved in the malignant transformation and biological aggressiveness of several human carcinomas. Therefore, the present study assessed the expression of Bmi1 protein in human cervical cancer tissues and examined the mechanisms involved in cervical carcinogenesis. The expression of Bmi1 protein was examined by immunohistochemistry in cervical carcinoma tissues (n=71), high-grade squamous intraepithelial lesions (n=41) and normal cervical tissues (n=47). Expression of Bmi1 protein gradually increased across samples from the normal cervix (1/47; 2.12%), high-grade squamous intraepithelial lesions (5/42; 16.13%) and cervical carcinomas (31/71; 43.66%; P<0.05). Additionally, Bmi1 protein expression was associated with tumor histopathological grade. The effects of Bmi1 silencing and overexpression on tumor sphere formation and the tumorigenicity of cervical cancer cells were investigated. Overexpression of Bmi1 resulted in significantly attenuated tumor formation and tumor sphere formation. Consistently, Bmi1 silencing significantly inhibited tumor formation and tumor sphere formation. Furthermore, Bmi1 upregulated the expression of Sox2, and the dual-luciferase reporter assay and chromatin immunoprecipitation showed that Bmi1 transactivated Sox2 by binding to the two E-box motifs in the Sox2 promoter. In conclusion, aberrantly elevated Bmi1 promotes cervical cancer tumorigenicity and tumor sphere formation via enhanced transcriptional regulation of Sox2 genes as a potential oncogenic factor that participates in the carcinogenesis of cervical carcinomas.
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Affiliation(s)
- Rui Xu
- Department of Reproductive Medicine, The First Affiliated Hospital of the Medical College, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Lin Chen
- Department of Pathology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710061, P.R. China
| | - Wen-Ting Yang
- Department of Reproductive Medicine, The First Affiliated Hospital of the Medical College, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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152
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Tsai KK, Chan TS, Shaked Y. Next Viable Routes to Targeting Pancreatic Cancer Stemness: Learning from Clinical Setbacks. J Clin Med 2019; 8:jcm8050702. [PMID: 31108941 PMCID: PMC6571629 DOI: 10.3390/jcm8050702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 05/08/2019] [Accepted: 05/15/2019] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a devastating and highly aggressive malignancy. Existing therapeutic strategies only provide a small survival benefit in patients with PDAC. Laboratory and clinical research have identified various populations of stem-cell-like cancer cells or cancer stem cells (CSCs) as the driving force of PDAC progression, treatment-resistance, and metastasis. Whilst a number of therapeutics aiming at inhibiting or killing CSCs have been developed over the past decade, a series of notable clinical trial setbacks have led to their deprioritization from the pipelines, triggering efforts to refine the current CSC model and exploit alternative therapeutic strategies. This review describes the current and the evolving models of pancreatic CSCs (panCSCs) and the potential factors that hamper the clinical development of panCSC-targeted therapies, emphasizing the heterogeneity, the plasticity, and the non-binary pattern of cancer stemness, as well as the desmoplastic stroma impeding drug penetration. We summarized novel and promising therapeutic strategies implicated by the works of our groups and others' that may overcome these hurdles and have shown efficacies in preclinical models of PDAC, emphasizing the unique advantages of targeting the stroma-engendered panCSC-niches and metronomic chemotherapy. Finally, we proposed feasible clinical trial strategies and biomarkers that can guide the next-generation clinical trials.
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Affiliation(s)
- Kelvin K Tsai
- Laboratory of Advanced Molecular Therapeutics, Division of Gastroenterology, Department of Internal Medicine, Integrative Therapy Center for Gastroenterologic Cancers, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan.
- Graduate Institute of Clinical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
- National Institute of Cancer Research, National Health Research Institutes, Miaoli 35053, Taiwan.
| | - Tze-Sian Chan
- Laboratory of Advanced Molecular Therapeutics, Division of Gastroenterology, Department of Internal Medicine, Integrative Therapy Center for Gastroenterologic Cancers, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan.
- Graduate Institute of Clinical Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yuval Shaked
- Department of Cell Biology and Cancer Science, Rappaport Faculty of Medicine, Technion Integrated Cancer Center, Technion-Israel Institute of Technology, Haifa 3525433, Israel.
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153
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Mesenchymal Stem Cells and Cancer: Clinical Challenges and Opportunities. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2820853. [PMID: 31205939 PMCID: PMC6530243 DOI: 10.1155/2019/2820853] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/19/2019] [Accepted: 04/10/2019] [Indexed: 02/06/2023]
Abstract
Stem cell-based therapies exhibit profound therapeutic potential for treating various human diseases, including cancer. Among the cell types that can be used for this purpose, mesenchymal stem cells (MSCs) are considered as promising source of stem cells in personalized cell-based therapies. The inherent tumor-tropic property of MSCs can be used to target cancer cells. Although the impacts of MSCs on tumor progression remain elusive, they have been genetically modified or engineered as targeted anticancer agents which could inhibit tumor growth by blocking different processes of tumor. In addition, there are close interactions between MSCs and cancer stem cells (CSCs). MSCs can regulate the growth of CSCs through paracrine mechanisms. This review aims to focus on the current knowledge about MSCs-based tumor therapies, the opportunities and challenges, as well as the prospective of its further clinical implications.
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154
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Guo Q, Huang F, Goncalves C, Del Rincón SV, Miller WH. Translation of cancer immunotherapy from the bench to the bedside. Adv Cancer Res 2019; 143:1-62. [PMID: 31202357 DOI: 10.1016/bs.acr.2019.03.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The tremendous success of immune checkpoint blockades has revolutionized cancer management. Our increased understanding of the cell types that compose the tumor microenvironment (TME), including those of the innate and adaptive immune system, has helped to shape additional immune modulatory strategies in cancer care. Pre-clinical and clinical investigations targeting novel checkpoint interactions and key pathways that regulate cancer immunity continue to increase rapidly. Various combinatorial drug regimens are being tested in attempt to achieve durable response and survival rates of patients with cancer. This review provides an overview of specific components of the TME, an introduction to novel immune checkpoints, followed by a survey of present day and future combination immune modulatory therapies. The idea that the immune system can recognize and destroy tumor cells was first described in the cancer immunosurveillance hypothesis of Burnet and Thomas. However, early experimental evidence failed to support the concept. It was not until the late 1990s when seminal papers clearly showed the existence of cancer immunosurveillance, leading to the cancer immunoediting hypothesis. In this century, progress in the understanding of negative regulators of the immune response led to the discovery that inhibition of these regulators in patients with cancer could lead to dramatic and durable remissions. Drs. Tasuku Honjo and James P. Allison were awarded the Nobel Prize in 2018 for their pioneering work in this field. We now see rapid advances in cancer immunology and emerging effective therapies revolutionizing cancer care across tumor types in the clinic, while pre-clinical research is moving from a focus on the malignant cells themselves to dissect the highly heterogenic and complex multi-cellular tumor microenvironment (TME).
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Affiliation(s)
- Qianyu Guo
- Division of Experimental Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada; Jewish General Hospital, Segal Cancer Centre, Department of Oncology, Montreal, QC, Canada
| | - Fan Huang
- Division of Experimental Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada; Jewish General Hospital, Segal Cancer Centre, Department of Oncology, Montreal, QC, Canada
| | - Christophe Goncalves
- Jewish General Hospital, Segal Cancer Centre, Department of Oncology, Montreal, QC, Canada
| | - Sonia V Del Rincón
- Division of Experimental Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada; Jewish General Hospital, Segal Cancer Centre, Department of Oncology, Montreal, QC, Canada
| | - Wilson H Miller
- Division of Experimental Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada; Jewish General Hospital, Segal Cancer Centre, Department of Oncology, Montreal, QC, Canada; Rossy Cancer Network, Montreal, QC, Canada.
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155
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Valeta-Magara A, Gadi A, Volta V, Walters B, Arju R, Giashuddin S, Zhong H, Schneider RJ. Inflammatory Breast Cancer Promotes Development of M2 Tumor-Associated Macrophages and Cancer Mesenchymal Cells through a Complex Chemokine Network. Cancer Res 2019; 79:3360-3371. [PMID: 31043378 DOI: 10.1158/0008-5472.can-17-2158] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 02/14/2019] [Accepted: 04/26/2019] [Indexed: 01/04/2023]
Abstract
Inflammatory breast cancer (IBC) is a highly aggressive form of breast cancer that displays profound cancer stem cell (CSC) and mesenchymal features that promote rapid metastasis. Another hallmark of IBC is high infiltration of M2 tumor-associated (immune-suppressing) macrophages. The molecular mechanism that drives these IBC phenotypes is not well understood. Using patient breast tumor specimens, breast cancer cell lines, and a patient-derived xenograft model of IBC, we demonstrate that IBC strongly expresses IL8 and growth-regulated oncogene (GRO) chemokines that activate STAT3, which promotes development of high levels of CSC-like cells and a mesenchymal phenotype. We also show that IBC expresses high levels of many monocyte recruitment and macrophage polarization factors that attract and differentiate monocytes into tumor-promoting, immune-suppressing M2-like macrophages. The M2 macrophages in turn were found to secrete high levels of IL8 and GRO chemokines, thereby creating a feed-forward chemokine loop that further drives an IBC epithelial-to-mesenchymal transition. Our study uncovers an intricate IBC-initiated autocrine-paracrine signaling network between IBC cells and monocytes that facilitates development of this highly aggressive form of breast cancer. SIGNIFICANCE: This study uncovers a signaling network in which IBC cells commandeer macrophages to become tumor-promoting, and they in turn drive IBC cells to be more cancer stem-like, mesenchymal, and aggressive.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/13/3360/F1.large.jpg.
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Affiliation(s)
| | - Abhilash Gadi
- Department of Microbiology, NYU School of Medicine, New York, New York
| | - Viviana Volta
- Department of Microbiology, NYU School of Medicine, New York, New York
| | - Beth Walters
- Department of Microbiology, NYU School of Medicine, New York, New York
| | - Rezina Arju
- Department of Microbiology, NYU School of Medicine, New York, New York
| | | | - Hua Zhong
- Division of Biostatistics, Department of Population Health, NYU School of Medicine, New York, New York
| | - Robert J Schneider
- Department of Microbiology, NYU School of Medicine, New York, New York. .,Division of Biostatistics, Department of Population Health, NYU School of Medicine, New York, New York.,NYU Perlmutter Cancer Center, NYU School of Medicine, New York, New York
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156
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Omran OM. EGFR and CXCR1 expression in thyroid carcinoma in Qassim Region-Saudi Arabia: Correlation with clinicopathological parameters. ACTA ACUST UNITED AC 2019; 26:145-151. [PMID: 31031057 DOI: 10.1016/j.pathophys.2019.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 04/03/2019] [Accepted: 04/17/2019] [Indexed: 12/25/2022]
Abstract
AIMS Recent evidence indicates an increased incidence of thyroid carcinoma, especially papillary thyroid carcinoma (PTC), in Saudi Arabia. EGFR and CXCR1 were reported to have increased expression in several human neoplasms. The goals of the present research was to investigate EGFR and CXCR1 expression in thyroid carcinoma and correlate the results to the established prognostic factors. METHODS Immunohistochemical study for both EGFR and CXCR1 was performed on formalin-fixed paraffin-embedded thyroid carcinomas tissues sections applying Labeled Streptavidin-biotin method (LSAB). RESULTS Remarkable high expression of EGFR and CXCR1 were observed in PTC cases (56% and 63% respectively). There was association between EGFR expression in PTC and each of histologic subtype, lymph node metastasis (LNM), distant metastasis (DM), TNM staging and tumor relapse. There was statistical significant correlation between CXCR1 expression in PTC and each of histologic subtype, LNM, and tumor relapse. A significant correlation was detected between concomitant EGFR and CXCR expression and LNM, DM, increasing stage and tumor relapse. CONCLUSIONS The results of the present study demonstrated, a statistically positive correlation of EGFR and CXCR1 expression in PTC compared to normal thyroid tissues and nodular hyperplasia in Qassim Region- Saudi Arabia. Concomitant high expression of both receptors were strongly correlated with LNM, DM, TNM stage and tumor relapse than did each alone. These findings suggest that EGFR and CXCR1 play crucial roles in PTC and serve as predictors of poor prognosis, biomarkers of tumor diagnosis, and potential targets of cancer therapeutics.
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Affiliation(s)
- Ola M Omran
- Department of Pathology, College of Medicine, Qassim University, Saudi Arabia; Department of Pathology, Faculty of Medicine, Assiut University, Egypt.
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157
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Khandekar D, Amara S, Tiriveedhi V. Immunogenicity of Tumor Initiating Stem Cells: Potential Applications in Novel Anticancer Therapy. Front Oncol 2019; 9:315. [PMID: 31106150 PMCID: PMC6494937 DOI: 10.3389/fonc.2019.00315] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/08/2019] [Indexed: 12/15/2022] Open
Abstract
Tumor initiating stem cells (TISCs) are a subset of tumor cells, which are implicated in cancer relapse and resistance to chemotherapy. The metabolic programs that drive TISC functions are exquisitely unique and finely-tuned by various oncogene-driven transcription factors to facilitate pro-cancerous adaptive challenges. While this change in TISC metabolic machinery allows for the identification of associated molecular targets with diagnostic and prognostic value, these molecules also have a potential immunological application. Recent studies have shown that these TISC-associated molecules have strong antigenic properties enabling naïve CD8+T lymphocytes to differentiate into cytotoxic effector phenotype with anticancer potential. In spite of the current challenges, a detailed understanding in this direction offers an immense immunotherapeutic opportunity. In this review, we highlight the molecular targets that characterize TISCs, the metabolic landscape of TISCs, potential antitumor immune cell activation, and the opportunities and challenges they present in the development of new cancer therapeutics.
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Affiliation(s)
- Durga Khandekar
- Department of Biological Sciences, Tennessee State University, Nashville, TN, United States
| | - Suneetha Amara
- Department of Medicine, St. Thomas Hospital-Midtown, Nashville, TN, United States
| | - Venkataswarup Tiriveedhi
- Department of Biological Sciences, Tennessee State University, Nashville, TN, United States.,Department of Pharmacology, Vanderbilt University, Nashville, TN, United States
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158
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Liubomirski Y, Lerrer S, Meshel T, Rubinstein-Achiasaf L, Morein D, Wiemann S, Körner C, Ben-Baruch A. Tumor-Stroma-Inflammation Networks Promote Pro-metastatic Chemokines and Aggressiveness Characteristics in Triple-Negative Breast Cancer. Front Immunol 2019; 10:757. [PMID: 31031757 PMCID: PMC6473166 DOI: 10.3389/fimmu.2019.00757] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 03/21/2019] [Indexed: 12/12/2022] Open
Abstract
The tumor microenvironment (TME) plays key roles in promoting disease progression in the aggressive triple-negative subtype of breast cancer (TNBC; Basal/Basal-like). Here, we took an integrative approach and determined the impact of tumor-stroma-inflammation networks on pro-metastatic phenotypes in TNBC. With the TCGA dataset we found that the pro-inflammatory cytokines tumor necrosis factor α (TNFα) and interleukin 1β (IL-1β), as well as their target pro-metastatic chemokines CXCL8 (IL-8), CCL2 (MCP-1), and CCL5 (RANTES) were expressed at significantly higher levels in basal patients than luminal-A patients. Then, we found that TNFα- or IL-1β-stimulated co-cultures of TNBC cells (MDA-MB-231, MDA-MB-468, BT-549) with mesenchymal stem cells (MSCs) expressed significantly higher levels of CXCL8 compared to non-stimulated co-cultures or each cell type alone, with or without cytokine stimulation. CXCL8 was also up-regulated in TNBC co-cultures with breast cancer-associated fibroblasts (CAFs) derived from patients. CCL2 and CCL5 also reached the highest expression levels in TNFα/IL-1β-stimulated TNBC:MSC/CAF co-cultures. The elevations in CXCL8 and CCL2 expression partly depended on direct physical contacts between the tumor cells and the MSCs/CAFs, whereas CCL5 up-regulation was entirely dependent on cell-to-cell contacts. Supernatants of TNFα-stimulated TNBC:MSC "Contact" co-cultures induced robust endothelial cell migration and sprouting. TNBC cells co-cultured with MSCs and TNFα gained migration-related morphology and potent migratory properties; they also became more invasive when co-cultured with MSCs/CAFs in the presence of TNFα. Using siRNA to CXCL8, we found that CXCL8 was significantly involved in mediating the pro-metastatic activities gained by TNFα-stimulated TNBC:MSC "Contact" co-cultures: angiogenesis, migration-related morphology of the tumor cells, as well as cancer cell migration and invasion. Importantly, TNFα stimulation of TNBC:MSC "Contact" co-cultures in vitro has increased the aggressiveness of the tumor cells in vivo, leading to higher incidence of mice with lung metastases than non-stimulated TNBC:MSC co-cultures. Similar tumor-stromal-inflammation networks established in-culture with luminal-A cells demonstrated less effective or differently-active pro-metastatic functions than those of TNBC cells. Overall, our studies identify novel tumor-stroma-inflammation networks that may promote TNBC aggressiveness by increasing the pro-malignancy potential of the TME and of the tumor cells themselves, and reveal key roles for CXCL8 in mediating these metastasis-promoting activities.
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Affiliation(s)
- Yulia Liubomirski
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shalom Lerrer
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Tsipi Meshel
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Linor Rubinstein-Achiasaf
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Dina Morein
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center, Heidelberg, Germany
| | - Cindy Körner
- Division of Molecular Genome Analysis, German Cancer Research Center, Heidelberg, Germany
| | - Adit Ben-Baruch
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
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159
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Corrò C, Healy ME, Engler S, Bodenmiller B, Li Z, Schraml P, Weber A, Frew IJ, Rechsteiner M, Moch H. IL-8 and CXCR1 expression is associated with cancer stem cell-like properties of clear cell renal cancer. J Pathol 2019; 248:377-389. [PMID: 30883740 PMCID: PMC6618115 DOI: 10.1002/path.5267] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 02/25/2019] [Accepted: 03/13/2019] [Indexed: 12/28/2022]
Abstract
Recent studies suggest that clear cell renal cell carcinoma (ccRCC) possesses a rare population of cancer stem cells (CSCs) that might contribute to tumor heterogeneity, metastasis and therapeutic resistance. Nevertheless, their relevance for renal cancer is still unclear. In this study, we successfully isolated CSCs from established human ccRCC cell lines. CSCs displayed high expression of the chemokine IL‐8 and its receptor CXCR1. While recombinant IL‐8 significantly increased CSC number and properties in vitro, CXCR1 inhibition using an anti‐CXCR1 antibody or repertaxin significantly reduced these features. After injection into immune‐deficient mice, CSCs formed primary tumors that metastasized to the lung and liver. All xenografted tumors in mice expressed high levels of IL‐8 and CXCR1. Furthermore, IL‐8/CXCR1 expression significantly correlated with decreased overall survival in ccRCC patients. These results suggest that the IL‐8/CXCR1 phenotype is associated with CSC‐like properties in renal cancer. © 2019 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)
- Claudia Corrò
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland.,Life Science Zurich Graduate School, ETH and University of Zurich, Zurich, Switzerland
| | - Marc E Healy
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Stefanie Engler
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Bernd Bodenmiller
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Zhe Li
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Peter Schraml
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Achim Weber
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Ian J Frew
- Clinic of Internal Medicine I, Faculty of Medicine, Medical Center - University of Freiburg, Freiburg im Breisgau, Germany
| | - Markus Rechsteiner
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Holger Moch
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
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160
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Abstract
Cancer stem cells (CSCs) are crucial for tumor recurrence and distant metastasis. Immunologically targeting CSCs represents a promising strategy to improve efficacy of multimodal cancer therapy. Modulating the innate immune response involving Toll-like receptors, macrophages, natural killer cells, and γδT cells has therapeutic effects on CSCs. Antigens expressed by CSCs provide specific targets for immunotherapy. CSC-primed dendritic cell-based vaccines have induced significant antitumor immunity as an adjuvant therapy in experimental models of established tumors. Targeting the tumor microenvironment CSC niche with cytokines or checkpoint blockade provides additional strategies to eliminate CSCs.
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Affiliation(s)
- Jing Zhang
- Division of Surgical Oncology, University of Michigan Rogel Cancer Center, Room 3410, 1150 East Medical Center Drive, Ann Arbor, MI 48109, USA; Department of the 2nd Thoracic Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 116 Zhuodaoquan South Road, Hongshan District, Wuhan, Hubei Province 430070, China
| | - Qiao Li
- Division of Surgical Oncology, University of Michigan Rogel Cancer Center, 3520B MSRB-1, 1150 West Medical Center Drive, Ann Arbor, MI 48109, USA
| | - Alfred E Chang
- Division of Surgical Oncology, University of Michigan Rogel Cancer Center, Room 3304, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA.
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161
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Sun L, Clavijo PE, Robbins Y, Patel P, Friedman J, Greene S, Das R, Silvin C, Van Waes C, Horn LA, Schlom J, Palena C, Maeda D, Zebala J, Allen CT. Inhibiting myeloid-derived suppressor cell trafficking enhances T cell immunotherapy. JCI Insight 2019; 4:126853. [PMID: 30944253 DOI: 10.1172/jci.insight.126853] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 02/21/2019] [Indexed: 12/22/2022] Open
Abstract
Recruitment of myeloid-derived suppressor cells (MDSCs) into tumors induces local immunosuppression in carcinomas. Here, we assessed whether SX-682, an orally bioavailable small-molecule inhibitor of CXCR1 and CXCR2, could block tumor MDSC recruitment and enhance T cell activation and antitumor immunity following multiple forms of immunotherapy. CXCR2+ neutrophilic MDSCs (PMN-MDSCs) were the most abundant myeloid cell subset within oral and lung syngeneic carcinomas. PMN-MDSCs demonstrated greater suppression of tumor-infiltrating lymphocyte killing of targets compared with macrophages. SX-682 significantly inhibited trafficking of PMN-MDSCs without altering CXCR2 ligand expression. Trafficking of CXCR1+ macrophages was unaltered, possibly due to coexpression of CSF1R. Reduced PMN-MDSC tumor infiltration correlated with enhanced accumulation of endogenous or adoptively transferred T cells. Accordingly, tumor growth inhibition or the rate of established tumor rejection following programed death-axis (PD-axis) immune checkpoint blockade or adoptive cell transfer of engineered T cells was enhanced in combination with SX-682. Despite CXCR1/2 expression on tumor cells, SX-682 appeared to have little direct antitumor effect on these carcinoma models. These data suggest that tumor-infiltrating CXCR2+ PMN-MDSCs may prevent optimal responses following both PD-axis immune checkpoint blockade and adoptive T cell transfer therapy. Abrogation of PMN-MDSC trafficking with SX-682 enhances T cell-based immunotherapeutic efficacy and may be of benefit to patients with MDSC-infiltrated cancers.
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Affiliation(s)
| | | | | | | | | | | | - Rita Das
- Tumor Biology Section, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, USA
| | - Chris Silvin
- Tumor Biology Section, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, USA
| | - Carter Van Waes
- Tumor Biology Section, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, USA
| | - Lucas A Horn
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Claudia Palena
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Dean Maeda
- Syntrix Pharmaceuticals, Auburn, Washington, USA
| | - John Zebala
- Syntrix Pharmaceuticals, Auburn, Washington, USA
| | - Clint T Allen
- Translation Tumor Immunology Program and.,Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
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162
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Cheng Y, Ma XL, Wei YQ, Wei XW. Potential roles and targeted therapy of the CXCLs/CXCR2 axis in cancer and inflammatory diseases. Biochim Biophys Acta Rev Cancer 2019; 1871:289-312. [DOI: 10.1016/j.bbcan.2019.01.005] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 11/19/2018] [Accepted: 01/09/2019] [Indexed: 12/16/2022]
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163
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Dey P, Rathod M, De A. Targeting stem cells in the realm of drug-resistant breast cancer. BREAST CANCER-TARGETS AND THERAPY 2019; 11:115-135. [PMID: 30881110 PMCID: PMC6410754 DOI: 10.2147/bctt.s189224] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Since its first documentation, breast cancer (BC) has been a conundrum that ails millions of women every year. This cancer has been well studied by researchers all over the world, which has improved the patient outcome significantly. There are many diagnostic markers to identify the disease, but early detection and then subclassification of this cancer remain dubious. Even after the correct diagnosis, more than half the patients come back with a more aggressive and metastatic tumor. The underpinning mechanism that governs the resistance includes over-amplification of receptors, mutations in key gene targets, and activation of different signaling. A plethora of drugs have been devised that have shown promising results in clinical settings. However, in recent times, the role played by cancer stem cells in disease progression and their interaction in mediating the resistance to cellular insults have come into the limelight. As breast cancer stem cells (BCSCs) are dormant in nature, it is highly likely that they fail to directly respond to the cytotoxic drugs which are meant for ablating rapidly proliferating cells. Furthermore, the absence of well-characterized, drug-able surface markers to date, has limited the application of targeted therapies in complete eradication of the disease. In this review, our intent is to discuss versatile therapeutics in practice followed by discussing the upcoming therapy strategies in the pipeline for BC. Furthermore, we focus on the roles played by BCSCs in mediating the resistance, and therefore, the aspects of new therapeutics against BCSCs under development that may ease the burden in future has also been discussed.
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Affiliation(s)
- Pranay Dey
- Molecular Functional Imaging Lab, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India, .,Molecular Functional Imaging Lab, Homi Bhabha National Institute, Mumbai, India,
| | - Maitreyi Rathod
- Molecular Functional Imaging Lab, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India, .,Molecular Functional Imaging Lab, Homi Bhabha National Institute, Mumbai, India,
| | - Abhijit De
- Molecular Functional Imaging Lab, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India, .,Molecular Functional Imaging Lab, Homi Bhabha National Institute, Mumbai, India,
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164
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Badrinath N, Yoo SY. Recent Advances in Cancer Stem Cell-Targeted Immunotherapy. Cancers (Basel) 2019; 11:cancers11030310. [PMID: 30841635 PMCID: PMC6468501 DOI: 10.3390/cancers11030310] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/22/2019] [Accepted: 03/01/2019] [Indexed: 12/12/2022] Open
Abstract
Cancer stem cells (CSCs) are one of the reasons for the relapse of cancer cells and metastasis. They have drug resistance against most chemotherapeutic agents. CSCs are also responsible for tumor cell heterogeneity and cause minimal residual disease. In order to achieve complete regression of tumors, CSCs have to be targeted. Recent advances in immunotherapies have shown promising outcomes in curing cancer, which are also applicable to target CSCs. CSCs express immune markers and exhibit specific immune characteristics in various cancers, which can be used in immunotherapies to target CSCs in the tumor microenvironment. Recently, various strategies have been used to target CSCs. Adaptive T-cells, dendritic cell (DC)-based vaccines, oncolytic viruses, immune checkpoint inhibitors, and combination therapies are now being used to target CSCs. Here, we discuss the feasibility of these immunological approaches and the recent trends in immunotherapies to target CSCs.
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Affiliation(s)
- Narayanasamy Badrinath
- Biomedical Sciences, School of Medicine, Pusan National University, Yangsan 50612, Korea.
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Korea.
| | - So Young Yoo
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Korea.
- BIO-IT Foundry Technology Institute, Pusan National University, Busan 46241, Korea.
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165
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Abstract
Cancer has long been viewed as a disease of altered metabolism. Although it has long been recognized that the majority of cancer cells display increased dependence on glycolysis, the metabolism of "cancer stem-like cells" (CSCs) that drive tumor growth and metastasis is less well characterized. In this chapter, we review the current state of knowledge of CSC metabolism with an emphasis on the development of therapeutic strategies to exploit the metabolic vulnerabilities of these cells. We outline emerging evidence indicating distinct metabolic pathways active in the proliferative, epithelial- (E) and quiescent, mesenchymal-like (M) CSC states in triple negative breast cancer. These CSC states are characterized by their different redox potentials and divergent sensitivities to inhibitors of glycolysis and redox metabolism. We highlight the roles of two redox-regulated signaling pathways, hypoxia-inducible factor 1α and nuclear factor erythroid 2-related factor 2, in regulating CSC epithelial-mesenchymal plasticity during metabolic and/or oxidative stress, and discuss clinical strategies using combinations of pro-oxidant-based therapeutics simultaneously targeting E- and M-like CSCs. By specifically targeting CSCs of both states, these strategies have the potential to increase the therapeutic efficacy of traditional chemotherapy and radiation therapy.
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166
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Vilgelm AE, Richmond A. Chemokines Modulate Immune Surveillance in Tumorigenesis, Metastasis, and Response to Immunotherapy. Front Immunol 2019; 10:333. [PMID: 30873179 PMCID: PMC6400988 DOI: 10.3389/fimmu.2019.00333] [Citation(s) in RCA: 226] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/08/2019] [Indexed: 12/22/2022] Open
Abstract
Chemokines are small secreted proteins that orchestrate migration and positioning of immune cells within the tissues. Chemokines are essential for the function of the immune system. Accumulating evidence suggest that chemokines play important roles in tumor microenvironment. In this review we discuss an association of chemokine expression and activity within the tumor microenvironment with cancer outcome. We summarize regulation of immune cell recruitment into the tumor by chemokine-chemokine receptor interactions and describe evidence implicating chemokines in promotion of the "inflamed" immune-cell enriched tumor microenvironment. We review both tumor-promoting function of chemokines, such as regulation of tumor metastasis, and beneficial chemokine roles, including stimulation of anti-tumor immunity and response to immunotherapy. Finally, we discuss the therapeutic strategies target tumor-promoting chemokines or induce/deliver beneficial chemokines within the tumor focusing on pre-clinical studies and clinical trials going forward. The goal of this review is to provide insight into comprehensive role of chemokines and their receptors in tumor pathobiology and treatment.
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Affiliation(s)
- Anna E. Vilgelm
- Tennessee Valley Healthcare System, Department of Veterans Affairs, Nashville, TN, United States
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Ann Richmond
- Tennessee Valley Healthcare System, Department of Veterans Affairs, Nashville, TN, United States
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN, United States
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167
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Turdo A, Veschi V, Gaggianesi M, Chinnici A, Bianca P, Todaro M, Stassi G. Meeting the Challenge of Targeting Cancer Stem Cells. Front Cell Dev Biol 2019; 7:16. [PMID: 30834247 PMCID: PMC6387961 DOI: 10.3389/fcell.2019.00016] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/01/2019] [Indexed: 12/18/2022] Open
Abstract
Notwithstanding cancer patients benefit from a plethora of therapeutic alternatives, drug resistance remains a critical hurdle. Indeed, the high mortality rate is associated with metastatic disease, which is mostly incurable due to the refractoriness of metastatic cells to current treatments. Increasing data demonstrate that tumors contain a small subpopulation of cancer stem cells (CSCs) able to establish primary tumor and metastasis. CSCs are endowed with multiple treatment resistance capabilities comprising a highly efficient DNA damage repair machinery, the activation of survival pathways, enhanced cellular plasticity, immune evasion and the adaptation to a hostile microenvironment. Due to the presence of distinct cell populations within a tumor, cancer research has to face the major challenge of targeting the intra-tumoral as well as inter-tumoral heterogeneity. Thus, targeting molecular drivers operating in CSCs, in combination with standard treatments, may improve cancer patients’ outcomes, yielding long-lasting responses. Here, we report a comprehensive overview on the most significant therapeutic advances that have changed the known paradigms of cancer treatment with a particular emphasis on newly developed compounds that selectively affect the CSC population. Specifically, we are focusing on innovative therapeutic approaches including differentiation therapy, anti-angiogenic compounds, immunotherapy and inhibition of epigenetic enzymes and microenvironmental cues.
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Affiliation(s)
- Alice Turdo
- Department of Surgical, Oncological and Stomatological Sciences, University of Palermo, Palermo, Italy
| | - Veronica Veschi
- Department of Surgical, Oncological and Stomatological Sciences, University of Palermo, Palermo, Italy
| | - Miriam Gaggianesi
- Department of Surgical, Oncological and Stomatological Sciences, University of Palermo, Palermo, Italy
| | - Aurora Chinnici
- Department of Surgical, Oncological and Stomatological Sciences, University of Palermo, Palermo, Italy
| | - Paola Bianca
- Department of Surgical, Oncological and Stomatological Sciences, University of Palermo, Palermo, Italy
| | - Matilde Todaro
- Department of PROMISE, University of Palermo, Palermo, Italy
| | - Giorgio Stassi
- Department of Surgical, Oncological and Stomatological Sciences, University of Palermo, Palermo, Italy
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168
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Biophysical properties of cells for cancer diagnosis. J Biomech 2019; 86:1-7. [PMID: 30803699 DOI: 10.1016/j.jbiomech.2019.02.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/23/2018] [Accepted: 02/09/2019] [Indexed: 02/06/2023]
Abstract
Biophysical properties associated with the microenvironment of a tumor has been recognized as an important modulator for cell behaviour and function. Particularly, tissue rigidity is important during tumor carcinogenesis as it affects the tumor's ability to metastasis. Multiple downstream pathways are affected with a difference in rigidity of the extracellular matrix. The insight into tumor mechanosignalling represents a promising field that may lead to novel approaches for cancer diagnostics. Measurement of rigidity of the extracellular matrix or the tissue is a potential diagnostics approach for cancer detection. Altered extracellular matrix states persist for a long period of time and have lower heterogeneity compared to protein or genetic markers, therefore are more reliable as biomarkers. On the other hand, measurement of different kinase associated proteins or transcripts provide an early insight into potential transition of cells towards metastasis. Co-localization of transcriptional factors like YAP/TAZ provide an insight to determine if the cells are undergoing metastatic changes. This review explains the unique biophysical properties of the tumor microenvironment that present the potential targets for the diagnosis of cancer.
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169
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Fisher RC, Bellamkonda K, Alex Molina L, Xiang S, Liska D, Sarvestani SK, Chakrabarti S, Berg A, Jorgensen ML, Hatala D, Chen S, Aiello A, Appelman HD, Scott EW, Huang EH. Disrupting Inflammation-Associated CXCL8-CXCR1 Signaling Inhibits Tumorigenicity Initiated by Sporadic- and Colitis-Colon Cancer Stem Cells. Neoplasia 2019; 21:269-281. [PMID: 30738331 PMCID: PMC6370871 DOI: 10.1016/j.neo.2018.12.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/18/2018] [Accepted: 12/22/2018] [Indexed: 02/07/2023] Open
Abstract
Dysfunctional inflammatory pathways are associated with an increased risk of cancer, including colorectal cancer. We have previously identified and enriched for a self-renewing, colon cancer stem cell (CCSC) subpopulation in primary sporadic colorectal cancers (CRC) and a related subpopulation in ulcerative colitis (UC) patients defined by the stem cell marker, aldehyde dehydrogenase (ALDH). Subsequent work demonstrated that CCSC-initiated tumors are dependent on the inflammatory chemokine, CXCL8, a known inducer of tumor proliferation, angiogenesis and invasion. Here, we use RNA interference to target CXCL8 and its receptor, CXCR1, to establish the existence of a functional signaling pathway promoting tumor growth initiated by sporadic and colitis CCSCs. Knocking down either CXCL8 or CXCR1 had a dramatic effect on inhibiting both in vitro proliferation and angiogenesis. Likewise, tumorigenicity was significantly inhibited due to reduced levels of proliferation and angiogenesis. Decreased expression of cycle cell regulators cyclins D1 and B1 along with increased p21 levels suggested that the reduction in tumor growth is due to dysregulation of cell cycle progression. Therapeutically targeting the CXCL8-CXCR1 signaling pathway has the potential to block sustained tumorigenesis by inhibiting both CCSC- and pCCSC-induced proliferation and angiogenesis.
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Affiliation(s)
- Robert C Fisher
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Kishan Bellamkonda
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - L Alex Molina
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Shao Xiang
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - David Liska
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Colorectal Surgery, Cleveland Clinic, Cleveland, OH, USA
| | - Samaneh K Sarvestani
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Annamarie Berg
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Marda L Jorgensen
- Department of Pediatrics, University of Florida, Gainesville, Florida, USA
| | - Denise Hatala
- Immunochemistry Core, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Sugong Chen
- Department of Surgery, Duke University Medical Center, Durham, North Carolina, USA
| | - Alexandra Aiello
- Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - Henry D Appelman
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Edward W Scott
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, USA
| | - Emina H Huang
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Colorectal Surgery, Cleveland Clinic, Cleveland, OH, USA.
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170
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Ruffini PA. The CXCL8-CXCR1/2 Axis as a Therapeutic Target in Breast Cancer Stem-Like Cells. Front Oncol 2019; 9:40. [PMID: 30788286 PMCID: PMC6373429 DOI: 10.3389/fonc.2019.00040] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/15/2019] [Indexed: 01/16/2023] Open
Abstract
Cancer stem-like cells (CSC) have been targeted by different strategies over the last decade. This mini review focuses on preclinical and clinical results obtained by interfering with chemokine receptors CXCR1 and CXCR2 in breast cancer. This strategy is currently being tested in a randomized, double blind phase 2 clinical trial.
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171
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Woosley AN, Dalton AC, Hussey GS, Howley BV, Mohanty BK, Grelet S, Dincman T, Bloos S, Olsen SK, Howe PH. TGFβ promotes breast cancer stem cell self-renewal through an ILEI/LIFR signaling axis. Oncogene 2019; 38:3794-3811. [PMID: 30692635 PMCID: PMC6525020 DOI: 10.1038/s41388-019-0703-z] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/20/2018] [Accepted: 01/04/2019] [Indexed: 12/17/2022]
Abstract
FAM3C/Interleukin-like EMT Inducer (ILEI) is an oncogenic member of the FAM3 cytokine family and serves essential roles in both epithelial-mesenchymal transition (EMT) and breast cancer metastasis. ILEI expression levels are regulated through a non-canonical TGFβ signaling pathway by 3’-UTR-mediated translational silencing at the mRNA level by hnRNP E1. TGFβ stimulation or silencing of hnRNP E1 increases ILEI translation and induces an EMT program that correlates to enhanced invasion and migration. Recently, EMT has been linked to the formation of breast cancer stem cells (BCSCs) that confer both tumor cell heterogeneity as well as chemoresistant properties. Herein, we demonstrate that hnRNP E1 knockdown significantly shifts normal mammary epithelial cells to mesenchymal BCSCs in vitro and in vivo. We further validate that modulating ILEI protein levels results in the abrogation of these phenotypes, promoting further investigation into the unknown mechanism of ILEI signaling that drives tumor progression. We identify LIFR as the receptor for ILEI, which mediates signaling through STAT3 to drive both EMT and BCSC formation. Reduction of either ILEI or LIFR protein levels results in reduced tumor growth, fewer tumor initiating cells and reduced metastasis within the hnRNP E1 knock-down cell populations in vivo. These results reveal a novel ligand-receptor complex that drives the formation of BCSCs and represents a unique target for the development of metastatic breast cancer therapies.
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Affiliation(s)
- Alec N Woosley
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - Annamarie C Dalton
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - George S Hussey
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - Breege V Howley
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - Bidyut K Mohanty
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - Simon Grelet
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - Toros Dincman
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - Sean Bloos
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - Shaun K Olsen
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA
| | - Philip H Howe
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA.
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172
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Sousa B, Ribeiro AS, Paredes J. Heterogeneity and Plasticity of Breast Cancer Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1139:83-103. [PMID: 31134496 DOI: 10.1007/978-3-030-14366-4_5] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In the last 20 years, the conventional view of breast cancer as a homogeneous collection of highly proliferating malignant cells was totally replaced by a model of increased complexity, which points out that breast carcinomas are tissues composed of multiple populations of transformed cells. A large diversity of host cells and structural components of the extracellular matrix constitute the mammary tumour microenvironment, which supports its growth and progression, where individual cancer cells evolve with cumulative phenotypic and genetic heterogeneity. Moreover, contributing to this heterogeneity, it has been demonstrated that breast cancers can exhibit a hierarchical organization composed of tumour cells displaying divergent lineage biomarkers and where, at the apex of this hierarchy, some neoplastic cells are able to self-renew and to aberrantly differentiate. Breast cancer stem cells (BCSCs), as they were entitled, not only drive tumourigenesis, but also mediate metastasis and contribute to therapy resistance.Recently, adding more complexity to the system, it has been demonstrated that BCSCs maintain high levels of plasticity, being able to change between mesenchymal-like and epithelial-like states in a process regulated by the tumour microenvironment. These stem cell state transitions play a fundamental role in the process of tumour metastasis, as well as in the resistance to putative therapeutic strategies to target these cells. In this chapter, it will be mainly discussed the emerging knowledge regarding the contribution of BCSCs to tumour heterogeneity, their plasticity, and the role that this plasticity can play in the establishment of distant metastasis. A major focus will also be given to potential clinical implications of these discoveries in breast cancer recurrence and to possible BCSC targeted therapeutics by the use of specific biomarkers.
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Affiliation(s)
- Bárbara Sousa
- Institute of Pathology and Molecular Immunology of the University of Porto (Ipatimup), Porto, Portugal.,Institute of Investigation and Innovation in Health (i3S), Porto, Portugal
| | - Ana Sofia Ribeiro
- Institute of Pathology and Molecular Immunology of the University of Porto (Ipatimup), Porto, Portugal.,Institute of Investigation and Innovation in Health (i3S), Porto, Portugal
| | - Joana Paredes
- Institute of Pathology and Molecular Immunology of the University of Porto (Ipatimup), Porto, Portugal. .,Institute of Investigation and Innovation in Health (i3S), Porto, Portugal. .,Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal.
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173
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Sridharan S, Howard CM, Tilley AMC, Subramaniyan B, Tiwari AK, Ruch RJ, Raman D. Novel and Alternative Targets Against Breast Cancer Stemness to Combat Chemoresistance. Front Oncol 2019. [PMID: 31681564 DOI: 10.3389/fonc.2019.01003.2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023] Open
Abstract
Breast cancer stem cells (BCSCs) play a vital role in tumor progression and metastasis. They are heterogeneous and inherently radio- and chemoresistant. They have the ability to self-renew and differentiate into non-BCSCs. These determinants of BCSCs including the plasticity between the mesenchymal and epithelial phenotypes often leads to minimal residual disease (MRD), tumor relapse, and therapy failure. By studying the resistance mechanisms in BCSCs, a combinatorial therapy can be formulated to co-target BCSCs and bulk tumor cells. This review addresses breast cancer stemness and molecular underpinnings of how the cancer stemness can lead to pharmacological resistance. This might occur through rewiring of signaling pathways and modulated expression of various targets that support survival and self-renewal, clonogenicity, and multi-lineage differentiation into heterogeneous bulk tumor cells following chemotherapy. We explore emerging novel and alternative molecular targets against BC stemness and chemoresistance involving survival, drug efflux, metabolism, proliferation, cell migration, invasion, and metastasis. Strategic targeting of such vulnerabilities in BCSCs may overcome the chemoresistance and increase the longevity of the metastatic breast cancer patients.
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Affiliation(s)
- Sangita Sridharan
- Department of Cancer Biology, University of Toledo, Toledo, OH, United States
| | - Cory M Howard
- Department of Cancer Biology, University of Toledo, Toledo, OH, United States
| | - Augustus M C Tilley
- Department of Cancer Biology, University of Toledo, Toledo, OH, United States
| | | | - Amit K Tiwari
- Department of Pharmacology and Experimental Therapeutics, University of Toledo, Toledo, OH, United States
| | - Randall J Ruch
- Department of Cancer Biology, University of Toledo, Toledo, OH, United States
| | - Dayanidhi Raman
- Department of Cancer Biology, University of Toledo, Toledo, OH, United States
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174
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Rani A, Stebbing J, Giamas G, Murphy J. Endocrine Resistance in Hormone Receptor Positive Breast Cancer-From Mechanism to Therapy. Front Endocrinol (Lausanne) 2019; 10:245. [PMID: 31178825 PMCID: PMC6543000 DOI: 10.3389/fendo.2019.00245] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 03/28/2019] [Indexed: 12/24/2022] Open
Abstract
The importance and role of the estrogen receptor (ER) pathway has been well-documented in both breast cancer (BC) development and progression. The treatment of choice in women with metastatic breast cancer (MBC) is classically divided into a variety of endocrine therapies, 3 of the most common being: selective estrogen receptor modulators (SERM), aromatase inhibitors (AI) and selective estrogen receptor down-regulators (SERD). In a proportion of patients, resistance develops to endocrine therapy due to a sophisticated and at times redundant interference, at the molecular level between the ER and growth factor. The progression to endocrine resistance is considered to be a gradual, step-wise process. Several mechanisms have been proposed but thus far none of them can be defined as the complete explanation behind the phenomenon of endocrine resistance. Although multiple cellular, molecular and immune mechanisms have been and are being extensively studied, their individual roles are often poorly understood. In this review, we summarize current progress in our understanding of ER biology and the molecular mechanisms that predispose and determine endocrine resistance in breast cancer patients.
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Affiliation(s)
- Aradhana Rani
- School of Life Sciences, University of Westminster, London, United Kingdom
- *Correspondence: Aradhana Rani
| | - Justin Stebbing
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Georgios Giamas
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Brighton, United Kingdom
| | - John Murphy
- School of Life Sciences, University of Westminster, London, United Kingdom
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175
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Hypoxia-inducible factors promote breast cancer stem cell specification and maintenance in response to hypoxia or cytotoxic chemotherapy. Adv Cancer Res 2019; 141:175-212. [PMID: 30691683 DOI: 10.1016/bs.acr.2018.11.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Clinical studies have revealed that breast cancers contain regions of intratumoral hypoxia (reduced oxygen availability), which activates hypoxia-inducible factors (HIFs). The relationship between intratumoral hypoxia, distant metastasis and cancer mortality has been well established. A major mechanism by which intratumoral hypoxia contributes to disease progression is through induction of the breast cancer stem cell (BCSC) phenotype. BCSCs are a small subpopulation of cells with the capability for self-renewal. BCSCs have been implicated in resistance to chemotherapy, disease recurrence, and metastasis. In this review, we will discuss our current understanding of the molecular mechanisms underlying HIF-dependent induction of the BCSC phenotype in response to hypoxia or chemotherapy.
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176
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Saygin C, Matei D, Majeti R, Reizes O, Lathia JD. Targeting Cancer Stemness in the Clinic: From Hype to Hope. Cell Stem Cell 2018; 24:25-40. [PMID: 30595497 DOI: 10.1016/j.stem.2018.11.017] [Citation(s) in RCA: 333] [Impact Index Per Article: 55.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tumors are composed of non-homogeneous cell populations exhibiting varying degrees of genetic and functional heterogeneity. Cancer stem cells (CSCs) are capable of sustaining tumors by manipulating genetic and non-genetic factors to metastasize, resist treatment, and maintain the tumor microenvironment. Understanding the key traits and mechanisms of CSC survival provides opportunities to improve patient outcomes via improved prognostic models and therapeutics. Here, we review the clinical significance of CSCs and results of potential CSC-targeting therapies in various cancers. We discuss barriers to translating cues from pre-clinical models into clinical applications and propose new strategies for rational design of future anti-CSC trials.
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Affiliation(s)
- Caner Saygin
- Department of Internal Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Daniela Matei
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Ravindra Majeti
- Division of Hematology, Department of Medicine, Cancer Institute and Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Ofer Reizes
- Department of Cellular and Molecular Medicine, Cleveland Clinic, Cleveland, OH 44192, USA
| | - Justin D Lathia
- Department of Cellular and Molecular Medicine, Cleveland Clinic, Cleveland, OH 44192, USA.
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177
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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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178
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Saeg F, Anbalagan M. Breast cancer stem cells and the challenges of eradication: a review of novel therapies. Stem Cell Investig 2018; 5:39. [PMID: 30498750 DOI: 10.21037/sci.2018.10.05] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 09/29/2018] [Indexed: 12/20/2022]
Abstract
Breast cancer is a heterogeneous disease that accounts for 30% of all cancers diagnosed in women and over half a million deaths per year. Cancer stem cells (CSCs) make up a small subpopulation of cells within a tumor, are capable of self-renewal and, are responsible for tumor initiation, formation, and recurrence. Breast CSCs (BCSCs) have been the subject of concentrated research as potential targets for breast cancer therapies. Cell surface markers CD44+/CD24- have been established as minimum biomarkers for BCSCs and the upregulation of CD44 expression has been linked to tumor formation in numerous cancers. Additionally, the deregulation of Notch, Wnt/Frizzled/β-catenin, Hippo, and Hedgehog signaling pathways is believed to be responsible for the formation of CSCs and lead to tumor formation. Tumor heterogeneity is a key feature of therapy resistance and a major challenge. CSCs are predominantly senescent and inherently immune to chemotherapy drugs which rely on an overactive cell cycle. Current therapeutic strategies include targeting CSC signaling pathways that play critical roles in self-renewal and defense. Anti-CD44 antibodies have been shown to induce terminal differentiation in CSCs resulting in a significant decrease in tumor metastasis. Additionally, targeting the tumor microenvironment has been shown to increase the effectiveness of chemotherapy drugs. In this review, we attempt to provide an overview of breast cancer, the stem of its cause, and novel therapies currently being explored.
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Affiliation(s)
- Fouad Saeg
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA.,DeBakey Scholars Program, Tulane University School of Medicine, New Orleans, LA, USA
| | - Muralidharan Anbalagan
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA
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179
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Méndez-García LA, Nava-Castro KE, Ochoa-Mercado TDL, Palacios-Arreola MI, Ruiz-Manzano RA, Segovia-Mendoza M, Solleiro-Villavicencio H, Cázarez-Martínez C, Morales-Montor J. Breast Cancer Metastasis: Are Cytokines Important Players During Its Development and Progression? J Interferon Cytokine Res 2018; 39:39-55. [PMID: 30321090 DOI: 10.1089/jir.2018.0024] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In breast cancer, an uncontrolled cell proliferation leads to tumor formation and development of a multifactorial disease. Metastasis is a complex process that involves tumor spread to distant parts of the body from its original site. Metastatic dissemination represents the main physiopathology of cancer. Inter- and intracellular communication in all systems in vertebrates is mediated by cytokines, which are highly inducible, secretory proteins, produced not only by immune system cells, but also by endocrine and nervous system cells. It has become clear in recent years that cytokines, as well as their receptors are produced in the organisms under physiological and pathological conditions; recently, they have been closely related to breast cancer metastasis. The exact initiation process of breast cancer metastasis is unknown, although several hypotheses have emerged. In this study, we thoroughly reviewed the role of several cytokines in breast cancer metastasis. Data reviewed suggest that cytokines and growth factors are key players in the breast cancer metastasis induction. This knowledge must be considered with the aim to development of new therapeutic approaches to counter breast cancer metastasis.
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Affiliation(s)
| | - Karen Elizabeth Nava-Castro
- 2 Laboratorio de Genotoxicología y Medicina Ambientales, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, México DF, México
| | - Tania de Lourdes Ochoa-Mercado
- 3 Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Margarita Isabel Palacios-Arreola
- 2 Laboratorio de Genotoxicología y Medicina Ambientales, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, México DF, México
| | - Rocío Alejandra Ruiz-Manzano
- 3 Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Mariana Segovia-Mendoza
- 3 Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Helena Solleiro-Villavicencio
- 4 Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, México DF, Mexico
| | - Cinthia Cázarez-Martínez
- 2 Laboratorio de Genotoxicología y Medicina Ambientales, Departamento de Ciencias Ambientales, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, México DF, México
| | - Jorge Morales-Montor
- 3 Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
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180
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Lee NH, Nikfarjam M, He H. Functions of the CXC ligand family in the pancreatic tumor microenvironment. Pancreatology 2018; 18:705-716. [PMID: 30078614 DOI: 10.1016/j.pan.2018.07.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/06/2018] [Accepted: 07/30/2018] [Indexed: 02/06/2023]
Abstract
Therapeutic resistance is the major contributor to the poor prognosis of and low survival from pancreatic cancer (PC). Cancer progression is a complex process reliant on interactions between the tumor and the tumor microenvironment (TME). Members of the CXCL family of chemokines are present in the pancreatic TME and seem to play a vital role in regulating PC progression. As pancreatic tumors interact with the TME and with PC stem cells (CSCs), determining the roles of specific members of the CXCL family is vital to the development of improved therapies. This review highlights the roles of selected CXCLs in the interactions between pancreatic tumor and its stroma, and in CSC phenotypes, which can be used to identify potential treatment targets.
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Affiliation(s)
- Nien-Hung Lee
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Victoria, Australia
| | - Mehrdad Nikfarjam
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Victoria, Australia
| | - Hong He
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Victoria, Australia.
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181
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Reshadmanesh A, Rahbarizadeh F, Ahmadvand D, Jafari Iri Sofla F. Evaluation of cellular and transcriptional targeting of breast cancer stem cells via anti-HER2 nanobody conjugated PAMAM dendrimers. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S105-S115. [PMID: 30246563 DOI: 10.1080/21691401.2018.1489269] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
According to the cancer stem cell (CSC) theory, a small subset of cells with stem cell-like characteristics is responsible for tumor initiation, progression, and recurrence. CD44+/CD24- phenotype is assumed to be one of the main characteristics of the breast CSCs. We developed an MDA-MB-231 cell line overexpressing cell surface HER2 antigen for the evaluation of targeting efficiency of anti-HER2 nanobody (Nb)-conjugated polyamidoamine (PAMAM) polyplexes. Apoptosis-inducing tBid gene under control of CXCR1 promoter was delivered by this nanoparticle. Cellular uptake study showed higher uptake of Nb-targeted PAMAM carriers compared to non-targeted nanoparticles after 6 h of incubation. Gene expression analysis showed a significant rise in the expression of tBid in both MDA-MB-231/HER2+ and MDA-MB-231 compared to the two other cell lines. The same effect was observed after transfection with Nb-conjugated polyplexes within MDA-MB-231/HER2+ cell line compared to non-conjugated PAMAM polyplexes. We confirmed the killing efficiency of the gene construct in both MDA-MB-231/HER2+ and MDA-MB-231 cell lines by caspase 3 activity assay. These findings suggest that imposing pre-entry and post-entry restrictions on tBid killer gene might be a promising approach to specifically target the breast CSCs.
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Affiliation(s)
- Azadeh Reshadmanesh
- a Department of Medical Biotechnology, Faculty of Medical Sciences , Tarbiat Modares University , Tehran , Iran
| | - Fatemeh Rahbarizadeh
- a Department of Medical Biotechnology, Faculty of Medical Sciences , Tarbiat Modares University , Tehran , Iran
| | - Davoud Ahmadvand
- b Department of Biochemistry, School of Allied Medical Sciences , Iran University of Medical Sciences , Tehran , Iran
| | - Farnoush Jafari Iri Sofla
- a Department of Medical Biotechnology, Faculty of Medical Sciences , Tarbiat Modares University , Tehran , Iran
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182
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Jin F, Miao Y, Xu P, Qiu X. IL-8 regulates the stemness properties of cancer stem cells in the small-cell lung cancer cell line H446. Onco Targets Ther 2018; 11:5723-5731. [PMID: 30254465 PMCID: PMC6140722 DOI: 10.2147/ott.s161760] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
PURPOSE Cancer stem cells (CSCs) are a small population of cancer cells located within a tumor that are highly tumorigenic, capable of tumor initiation, and resistant to cancer therapies. We identified the potential genes involved in regulating stemness properties and investigated the mechanisms in small-cell lung cancer (SCLC). MATERIALS AND METHODS Whole transcriptome sequencing technology was used to screen the potential genes involved in regulating stemness properties from SCLC-SCs (uPAR+) and differentiated cells (uPAR-) in the H446 cell line. The selected genes were validated by quantitative reverse transcription PCR and ELISAs. The effect of IL-8 on stemness of sphere-forming cells was determined through tumor sphere formation, wound healing migration, and in vivo tumorigenesis assays. RESULTS In our study, uPAR+ and uPAR- cells showed different gene expression profiles. IL-8 was upregulated in SCLC sphere-forming cells. Blocking IL-8 expression with siRNA led to loss of stemness, including the self-renewal capability, migration, expression of stemness-related genes, and in vivo tumorigenicity, in sphere-forming cells. Consistently, exogenously added IL-8 enhanced stemness properties in parental cells. CONCLUSION IL-8 was upregulated in SCLC sphere-forming cells, and critical for the acquisition and/or maintenance of the stemness features in the SCLC cell line H446. Our results suggest that blocking IL-8 signaling may provide a novel therapeutic approach for targeting SCLC-SCs and improve treatment and outcomes in SCLC.
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Affiliation(s)
- Fang Jin
- Department of Pathology, Tianjin Medical University, Tianjin, China,
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Yajing Miao
- Research Center for Basic Medical Science, Tianjin Medical University, Tianjin, China
| | - Pengyu Xu
- Department of Pathology, Tianjin Medical University, Tianjin, China,
| | - Xiaofei Qiu
- Department of Pathology, Tianjin Medical University, Tianjin, China,
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183
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Logue SE, McGrath EP, Cleary P, Greene S, Mnich K, Almanza A, Chevet E, Dwyer RM, Oommen A, Legembre P, Godey F, Madden EC, Leuzzi B, Obacz J, Zeng Q, Patterson JB, Jäger R, Gorman AM, Samali A. Inhibition of IRE1 RNase activity modulates the tumor cell secretome and enhances response to chemotherapy. Nat Commun 2018; 9:3267. [PMID: 30111846 PMCID: PMC6093931 DOI: 10.1038/s41467-018-05763-8] [Citation(s) in RCA: 184] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 07/26/2018] [Indexed: 12/17/2022] Open
Abstract
Triple-negative breast cancer (TNBC) lacks targeted therapies and has a worse prognosis than other breast cancer subtypes, underscoring an urgent need for new therapeutic targets and strategies. IRE1 is an endoplasmic reticulum (ER) stress sensor, whose activation is predominantly linked to the resolution of ER stress and, in the case of severe stress, to cell death. Here we demonstrate that constitutive IRE1 RNase activity contributes to basal production of pro-tumorigenic factors IL-6, IL-8, CXCL1, GM-CSF, and TGFβ2 in TNBC cells. We further show that the chemotherapeutic drug, paclitaxel, enhances IRE1 RNase activity and this contributes to paclitaxel-mediated expansion of tumor-initiating cells. In a xenograft mouse model of TNBC, inhibition of IRE1 RNase activity increases paclitaxel-mediated tumor suppression and delays tumor relapse post therapy. We therefore conclude that inclusion of IRE1 RNase inhibition in therapeutic strategies can enhance the effectiveness of current chemotherapeutics. IRE1/XBP-1 activation has a major role in Triple negative breast cancer (TNBC). Here, the authors show that inhibition of IRE1’s RNase activity attenuates autocrine and paracrine signaling of pro-tumorigenic cytokines and synergizes with paclitaxel to confer potent anti-tumor effects in TNBC.
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Affiliation(s)
- Susan E Logue
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Eoghan P McGrath
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Patricia Cleary
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Stephanie Greene
- Fosun Orinove PharmaTech Inc., 3537 Old Conejo Road, Suite 104, Newbury Park, CA, 91320, USA
| | - Katarzyna Mnich
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Aitor Almanza
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Eric Chevet
- Inserm U1242, Chemistry Oncogenesis Stress Signaling, Université de Rennes 1, Avenue de la Bataille Flandres Dunkerque, 35042, Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, Avenue de la Bataille Flandres Dunkerque, 35042, Rennes, France
| | - Róisín M Dwyer
- LAM 2015, Discipline of Surgery, Lambe Institute for Translational Research, National University of Ireland Galway, Costello Road, Galway, H91 V4AY, Ireland
| | - Anup Oommen
- School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Patrick Legembre
- Inserm U1242, Chemistry Oncogenesis Stress Signaling, Université de Rennes 1, Avenue de la Bataille Flandres Dunkerque, 35042, Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, Avenue de la Bataille Flandres Dunkerque, 35042, Rennes, France
| | - Florence Godey
- Inserm U1242, Chemistry Oncogenesis Stress Signaling, Université de Rennes 1, Avenue de la Bataille Flandres Dunkerque, 35042, Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, Avenue de la Bataille Flandres Dunkerque, 35042, Rennes, France
| | - Emma C Madden
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Brian Leuzzi
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Joanna Obacz
- Inserm U1242, Chemistry Oncogenesis Stress Signaling, Université de Rennes 1, Avenue de la Bataille Flandres Dunkerque, 35042, Rennes, France.,Centre de Lutte Contre le Cancer Eugène Marquis, Avenue de la Bataille Flandres Dunkerque, 35042, Rennes, France
| | - Qingping Zeng
- Fosun Orinove PharmaTech Inc., Suite 211, Building A4, 218 Xinghu St., Suzhou Industrial Park, Jiangsu, 215123, China
| | - John B Patterson
- Fosun Orinove PharmaTech Inc., 3537 Old Conejo Road, Suite 104, Newbury Park, CA, 91320, USA
| | - Richard Jäger
- Hochschule Bonn-Rhein-Sieg, University of Applied Sciences, Department of Natural Sciences, von-Liebig-Straße 20, 53359, Rheinbach, Germany
| | - Adrienne M Gorman
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland
| | - Afshin Samali
- Apoptosis Research Centre, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland. .,School of Natural Sciences, National University of Ireland Galway, University Road, Galway, H91 TK33, Ireland.
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184
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Galdiero MR, Marone G, Mantovani A. Cancer Inflammation and Cytokines. Cold Spring Harb Perspect Biol 2018; 10:cshperspect.a028662. [PMID: 28778871 DOI: 10.1101/cshperspect.a028662] [Citation(s) in RCA: 173] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chronic inflammation is a well-recognized tumor-enabling capability, which allows nascent tumors to escape immunosurveillance. A number of soluble and cellular inflammatory mediators take part in the various phases of cancer initiation and progression, giving rise to a fatal conspiracy, which is difficult to efficiently overcome. Tumor-associated macrophages (TAMs) are pivotal players of the tumor microenvironment and, because of their characteristic plasticity, can acquire a number of distinct phenotypes and contribute in different ways to the various phases of cancerogenesis. Tumor-associated neutrophils (TANs) are also emerging as important components of the tumor microenvironment, given their unexpected heterogeneity and plasticity. TAMs and TANs are both integrated in cancer-related inflammation and an ever better understanding of their functions can be useful to tailor the use of anticancer therapeutic approaches and patient follow-up.
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Affiliation(s)
- Maria Rosaria Galdiero
- Department of Translational Medical Sciences (DiSMeT) and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences (DiSMeT) and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy.,Institute of Experimental Endocrinology and Oncology "Gaetano Salvatore" (IEOS), National Research Council (CNR), 80131 Naples, Italy
| | - Alberto Mantovani
- Istituto di Ricovero e Cura a Carattere Scientifo (IRCCS), Istituto Clinico Humanitas, Rozzano, Milan, Italy.,Humanitas University, Rozzano, Milan, Italy
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185
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Dittmer J. Breast cancer stem cells: Features, key drivers and treatment options. Semin Cancer Biol 2018; 53:59-74. [PMID: 30059727 DOI: 10.1016/j.semcancer.2018.07.007] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/10/2018] [Accepted: 07/18/2018] [Indexed: 02/06/2023]
Abstract
The current view is that breast cancer is a stem cell disease characterized by the existence of cancer cells with stem-like features and tumor-initiating potential. These cells are made responsible for tumor dissemination and metastasis. Common therapies by chemotherapeutic drugs fail to eradicate these cells and rather increase the pool of cancer stem cells in tumors, an effect that may increase the likelyhood of recurrence. Fifteen years after the first evidence for a small stem-like subpopulation playing a major role in breast cancer initiation has been published a large body of knowledge has been accumulated regarding the signaling cascades and proteins involved in maintaining stemness in breast cancer. Differences in the stem cell pool size and in mechanisms regulating stemness in the different breast cancer subtypes have emerged. Overall, this knowledge offers new approaches to intervene with breast cancer stem cell activity. New options are particularly needed for the treatment of triple-negative breast cancer subtype, which is particularly rich in cancer stem cells and is also the subtype for which specific therapies are still not available.
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Affiliation(s)
- Jürgen Dittmer
- Clinic for Gynecology, Martin Luther University Halle-Wittenberg, Germany.
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186
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Crespo J, Wu K, Li W, Kryczek I, Maj T, Vatan L, Wei S, Opipari AW, Zou W. Human Naive T Cells Express Functional CXCL8 and Promote Tumorigenesis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 201:814-820. [PMID: 29802127 PMCID: PMC6039239 DOI: 10.4049/jimmunol.1700755] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 04/29/2018] [Indexed: 01/18/2023]
Abstract
Naive T cells are thought to be functionally quiescent. In this study, we studied and compared the phenotype, cytokine profile, and potential function of human naive CD4+ T cells in umbilical cord and peripheral blood. We found that naive CD4+ T cells, but not memory T cells, expressed high levels of chemokine CXCL8. CXCL8+ naive T cells were preferentially enriched CD31+ T cells and did not express T cell activation markers or typical Th effector cytokines, including IFN-γ, IL-4, IL-17, and IL-22. In addition, upon activation, naive T cells retained high levels of CXCL8 expression. Furthermore, we showed that naive T cell-derived CXCL8 mediated neutrophil migration in the in vitro migration assay, supported tumor sphere formation, and promoted tumor growth in an in vivo human xenograft model. Thus, human naive T cells are phenotypically and functionally heterogeneous and can carry out active functions in immune responses.
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Affiliation(s)
- Joel Crespo
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109
- Graduate Program in Immunology, University of Michigan School of Medicine, Ann Arbor, MI 48109
| | - Ke Wu
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wei Li
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109
- Department of Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ilona Kryczek
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109
| | - Tomasz Maj
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109
| | - Linda Vatan
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109
| | - Shuang Wei
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109
| | - Anthony W Opipari
- Department of Obstetrics and Gynecology, University of Michigan School of Medicine, Ann Arbor, MI 48109
| | - Weiping Zou
- Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109;
- Graduate Program in Immunology, University of Michigan School of Medicine, Ann Arbor, MI 48109
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI 48109
- University of Michigan Rogel Cancer Center, University of Michigan School of Medicine, Ann Arbor, MI 48109; and
- Graduate Program in Tumor Biology, University of Michigan School of Medicine, Ann Arbor, MI 48109
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187
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Uehara I, Tanaka N. Role of p53 in the Regulation of the Inflammatory Tumor Microenvironment and Tumor Suppression. Cancers (Basel) 2018; 10:cancers10070219. [PMID: 29954119 PMCID: PMC6071291 DOI: 10.3390/cancers10070219] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/18/2018] [Accepted: 06/22/2018] [Indexed: 12/20/2022] Open
Abstract
p53 has functional roles in tumor suppression as a guardian of the genome, surveillant of oncogenic cell transformation, and as recently demonstrated, a regulator of intracellular metabolism. Accumulating evidence has shown that the tumor microenvironment, accompanied by inflammation and tissue remodeling, is important for cancer proliferation, metastasis, and maintenance of cancer stem cells (CSCs) that self-renew and generate the diverse cells comprising the tumor. Furthermore, p53 has been demonstrated to inhibit inflammatory responses, and functional loss of p53 causes excessive inflammatory reactions. Moreover, the generation and maintenance of CSCs are supported by the inflammatory tumor microenvironment. Considering that the functions of p53 inhibit reprogramming of somatic cells to stem cells, p53 may have a major role in the inflammatory microenvironment as a tumor suppressor. Here, we review our current understanding of the mechanisms underlying the roles of p53 in regulation of the inflammatory microenvironment, tumor microenvironment, and tumor suppression.
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Affiliation(s)
- Ikuno Uehara
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki 211-8533, Japan.
| | - Nobuyuki Tanaka
- Department of Molecular Oncology, Institute for Advanced Medical Sciences, Nippon Medical School, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki 211-8533, Japan.
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188
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Eltoukhy HS, Sinha G, Moore CA, Gergues M, Rameshwar P. Secretome within the bone marrow microenvironment: A basis for mesenchymal stem cell treatment and role in cancer dormancy. Biochimie 2018; 155:92-103. [PMID: 29859990 DOI: 10.1016/j.biochi.2018.05.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/29/2018] [Indexed: 02/07/2023]
Abstract
The secretome produced by cells within the bone marrow is significant to homeostasis. The bone marrow, a well-studied organ, has multiple niches with distinct roles for supporting stem cell functions. Thus, an understanding of mediators involved in the regulation of stem cells could serve as a model for clinical problems and solutions such as tissue repair and regeneration. The exosome secretome of bone marrow stem cells is a developing area of research with respect to the regenerative potential by bone marrow cell, particularly the mesenchymal stem cells. The bone marrow niche regulates endogenous processes such as hematopoiesis but could also support the survival of tumors such as facilitating the cancer stem cells to exist in dormancy for decades. The bone marrow-derived secretome will be critical to future development of therapeutic strategies for oncologic diseases, in addition to regenerative medicine. This article discusses the importance for parallel studies to determine how the same secretome may compromise safety during the use of stem cells in regenerative medicine.
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Affiliation(s)
- Hussam S Eltoukhy
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA
| | - Garima Sinha
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA
| | - Caitlyn A Moore
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA
| | - Marina Gergues
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA
| | - Pranela Rameshwar
- Department of Medicine - Division of Hematology/Oncology, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA.
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189
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McDermott SC, Rodriguez-Ramirez C, McDermott SP, Wicha MS, Nör JE. FGFR signaling regulates resistance of head and neck cancer stem cells to cisplatin. Oncotarget 2018; 9:25148-25165. [PMID: 29861860 PMCID: PMC5982758 DOI: 10.18632/oncotarget.25358] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 04/25/2018] [Indexed: 02/03/2023] Open
Abstract
Patients with recurrent or metastatic head and neck squamous cell carcinoma (HNSCC) have poor prognosis with less than 1-year median survival. Platinum-based chemotherapy remains the first-line treatment for HNSCC. The cancer stem cell (CSC) hypothesis postulates that tumors are maintained by a self-renewing CSC population that is also capable of differentiating into non-self renewing cell populations that constitute the bulk of the tumor. A small population of CSC exists within HNSCC that are relatively resistant to chemotherapy and clinically predicted to contribute to tumor recurrence. These head and neck CSCs (HNCSC) are identified by high cell-surface expression of CD44 and high intracellular activity of aldehyde dehydrogenase (ALDH) and termed ALDHhighCD44high. Here, we performed microarray analysis in two HNSCC cell lines (UM-SCC-1, UM-SCC-22B) to investigate molecular pathways active in untreated and cisplatin-resistant ALDHhighCD44high cells. Gene set enrichment analysis and iPathway analysis identified signaling pathways with major implications to the pathobiology of cancer (e.g. TNFα, IFN, IL6/STAT, NF-κB) that are enriched in cisplatin-resistant ALDHhighCD44high cells, when compared to control cells. FGF2 was also enriched in cisplatin-resistant ALDHhighCD44high, which was confirmed by ELISA analysis. Inhibition of FGF signaling using BGJ398, a pan-FGF receptor (FGFR) small-molecule inhibitor, decreased ALDHhighCD44high alone in UM-SCC-1 and preferentially targeted cisplatin-resistant ALDHhighCD44high cells in UM-SCC-22B. These findings suggest that FGFR signaling might play an important role in the resistance of head and neck CSC to cisplatin. Collectively, this work suggests that some head and neck cancer patients might benefit from the combination of cisplatin and a FGFR inhibitor.
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Affiliation(s)
- Sarah C. McDermott
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Christie Rodriguez-Ramirez
- Department of Cariology, Restorative Science & Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Sean P. McDermott
- Department of Internal Medicine–Hematology/Oncology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Max S. Wicha
- Department of Internal Medicine–Hematology/Oncology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Jacques E. Nör
- Department of Cariology, Restorative Science & Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
- Department of Biomedical Engineering, University of Michigan College of Engineering, Ann Arbor, MI, USA
- Department of Otolaryngology, University of Michigan Medical School, Ann Arbor, MI, USA
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190
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Zhang D, Tang DG, Rycaj K. Cancer stem cells: Regulation programs, immunological properties and immunotherapy. Semin Cancer Biol 2018; 52:94-106. [PMID: 29752993 DOI: 10.1016/j.semcancer.2018.05.001] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/04/2018] [Accepted: 05/08/2018] [Indexed: 02/07/2023]
Abstract
It is becoming increasingly clear that virtually all types of human cancers harbor a small population of stem-like cancer cells (i.e., cancer stem cells, CSCs). These CSCs preexist in primary tumors, can self-renew and are more tolerant of standard treatments, such as antimitotic and molecularly targeted agents, most of which preferentially eliminate differentiated and proliferating cancer cells. CSCs are therefore postulated as the root of therapy resistance, relapse and metastasis. Aside from surgery, radiation, and chemotherapy, immunotherapy is now established as the fourth pillar in the therapeutic armamentarium for patients with cancer, especially late-stage and advanced cancers. A better understanding of CSC immunological properties should lead to development of novel immunologic approaches targeting CSCs, which, in turn, may help prevent tumor recurrence and eliminate residual diseases. Here, with a focus on CSCs in solid tumors, we review CSC regulation programs and recent transcriptomics-based immunological profiling data specific to CSCs. By highlighting CSC antigens that could potentially be immunogenic, we further discuss how CSCs can be targeted immunologically.
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Affiliation(s)
- Dingxiao Zhang
- Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA; Key Lab of Agricultural Animal Genetics, Breeding & Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Dean G Tang
- Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA; Cancer Stem Cell Institute, Research Center for Translational Medicine, East Hospital, Tongji University School of Medicine, Shanghai, 200120, China.
| | - Kiera Rycaj
- Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA.
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191
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Fu S, Chen X, Lin HJ, Lin J. Inhibition of interleukin 8/C‑X-C chemokine receptor 1,/2 signaling reduces malignant features in human pancreatic cancer cells. Int J Oncol 2018; 53:349-357. [PMID: 29749433 DOI: 10.3892/ijo.2018.4389] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 01/31/2018] [Indexed: 11/05/2022] Open
Abstract
Interactions between interleukin (IL)-8 and its receptors, C‑X-C chemokine receptor 1, (CXCR1) and CXCR2 serve crucial roles in increasing cancer progression. Inhibition of this signaling pathway has yielded promising results in a number of human cancers, including breast, melanoma and colon. However, the effects of CXCR1/2 antagonist treatment on pancreatic cancer remain unclear. The present study aimed to demonstrate that treatment with the clinical grade CXCR1/2 antagonist, reparixin, or the newly discovered CXCR1/2 antagonist, SCH527123, may result in a reduction of the malignant features associated with this lethal cancer. The effects of reparixin or SCH527123 exposure on human pancreatic cancer cell lines BxPC‑3, HPAC, Capan‑1, MIA PaCa‑2, and AsPC‑1 were examined in regard to cell proliferation, cell viability, colony formation and migration. The effects of CXCR1/2 inhibition on the protein expression of well-known downstream effectors, including phosphorylated (p)-signal transducer and activator of transcription 3 (STAT3), p‑RAC‑α serine/threonine-protein kinase (p‑AKT), p‑extracellular signal-regulated kinase (p‑ERK1/2) and p‑ribosomal protein S6 (p‑S6), were assessed by western blotting assays. The effects of IL‑8 signaling on the proliferative activities intrinsic to the human pancreatic cancer cell lines Capan‑1, AsPC‑1 and HPAC were examined by bromodeoxyuridine assay. Treatment with either reparixin or SCH527123 yielded dose-dependent growth suppressive effects on HPAC, Capan‑1 and AsPC‑1 cells that may have otherwise undergone robust proliferation upon IL‑8 stimulation. In addition, reparixin or SCH527123 treatment inhibited CXCR1/2-mediated signal transduction, as demonstrated by the decreased phosphorylation levels of effector molecules STAT3, AKT, ERK and S6 that are downstream of the IL‑8/CXCR1/2 signaling cascade in HPAC cells. These data were in close agreement with the reduced cell migration and colony formation. Results from the present study suggested that reparixin and SCH527123 may be promising therapeutic agents for the treatment of pancreatic cancer by inhibiting the IL‑8/CXCR1/2 signaling cascade.
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Affiliation(s)
- Shengling Fu
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Xiang Chen
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, MD 21201, USA
| | - Huey-Jen Lin
- Department of Medical Laboratory Sciences, University of Delaware, Newark, DE 19716, USA
| | - Jiayuh Lin
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, MD 21201, USA
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192
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Xue MQ, Liu J, Sang JF, Su L, Yao YZ. Expression characteristic of CXCR1 in different breast tissues and the relevance between its expression and efficacy of neo-adjuvant chemotherapy in breast cancer. Oncotarget 2018; 8:48930-48937. [PMID: 28454081 PMCID: PMC5564737 DOI: 10.18632/oncotarget.16893] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 02/22/2017] [Indexed: 12/19/2022] Open
Abstract
Objective To investigate chemokine receptor CXCR1 expression characteristic in different breast tissues and analyze the relationship between CXCR1 expression changes in breast cancer tissue and efficacy of neo-adjuvant chemotherapy. Results Chemokine receptor CXCR1 was lowly expressed in normal breast tissues and breast fibroadenoma, but highly expressed in breast cancer. It was significantly correlated with pathological stage, tumor cell differentiation, and lymph node metastasis (P < 0.05). After neo-adjuvant chemotherapy, CXCR1 expression in breast cancer tissues decreased. Among these 104 breast cancer patients with different molecular subtypes, the survival rate with Luminal A was the highest, followed by the Luminal B breast cancer, TNBC was the worst. Materials and Methods 104 cases with breast carcinoma, 20 cases with normal breast and 20 cases with breast fibroadenoma were included and followed up. Immunohistochemistry was used to detect the expression of CXCR1 in the various tissues. The relationship between the CXCR1 expression changes in breast cancer biopsies and surgical specimens, as well as the efficacy of neo-adjuvant chemotherapy, was analyzed. Conclusions Chemokine receptor CXCR1 could be used as an indicator to predict benign or malignant breast disease, and it can even predict the malignancy degree of breast cancer, as well as its invasive ability and prognosis.
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Affiliation(s)
- Miao-Qun Xue
- Department of General Surgery, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Jun Liu
- Department of General Surgery, The Jiang Bei People's Hospital of Nanjing, Nanjing 210048, China
| | - Jian-Feng Sang
- Department of General Surgery, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Lei Su
- Department of General Surgery, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Yong-Zhong Yao
- Department of General Surgery, Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
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193
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Filipova A, Seifrtova M, Mokry J, Dvorak J, Rezacova M, Filip S, Diaz-Garcia D. Breast Cancer and Cancer Stem Cells: A Mini-Review. TUMORI JOURNAL 2018. [DOI: 10.1177/1636.17886] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Alzbeta Filipova
- Department of Medical Biochemistry, Charles University in Prague, Faculty of Medicine, Hradec Králové
| | - Martina Seifrtova
- Department of Medical Biochemistry, Charles University in Prague, Faculty of Medicine, Hradec Králové
| | - Jaroslav Mokry
- Department of Histology and Embryology, Charles University in Prague, Faculty of Medicine, Hradec Králové
| | - Josef Dvorak
- Department of Oncology and Radiotherapy, Charles University in Prague, Faculty of Medicine and Teaching Hospital, Hradec Králové, Czech Republic
| | - Martina Rezacova
- Department of Medical Biochemistry, Charles University in Prague, Faculty of Medicine, Hradec Králové
| | - Stanislav Filip
- Department of Oncology and Radiotherapy, Charles University in Prague, Faculty of Medicine and Teaching Hospital, Hradec Králové, Czech Republic
| | - Daniel Diaz-Garcia
- Department of Histology and Embryology, Charles University in Prague, Faculty of Medicine, Hradec Králové
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194
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Wang R, Zhou T, Liu W, Zuo L. Molecular mechanism of bystander effects and related abscopal/cohort effects in cancer therapy. Oncotarget 2018; 9:18637-18647. [PMID: 29719632 PMCID: PMC5915099 DOI: 10.18632/oncotarget.24746] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 02/25/2018] [Indexed: 12/17/2022] Open
Abstract
Cancer cells subjected to ionizing radiation may release signals which can influence nearby non-irradiated cells, termed bystander effects. The transmission of bystander effects among cancer cells involves the activation of inflammatory cytokines, death ligands, and reactive oxygen/nitrogen species. In addition to bystander effects, two other forms of non-target effects (NTEs) have been identified in radiotherapy, as one is called cohort effects and the other is called abscopal effects. Cohort effects represent the phenomenon where irradiated cells can produce signals that reduce the survival of neighboring cells within an irradiated volume. The effects suggest the importance of cellular communication under irradiation with non-uniform dose distribution. In contrast, abscopal effects describe the NTEs that typically occur in non-irradiated cells distant from an irradiated target. These effects can be mediated primarily by immune cells such as T cells. Clinical trials have shown that application of radiation along with immunotherapy may enhance abscopal effects and improve therapeutic efficacy on non-target lesions outside an irradiated field. According to NTEs, cell viability is reduced not only by direct irradiation effects, but also due to signals emitted from nearby irradiated cells. A clinical consideration of NTEs could have a revolutionary impact on current radiotherapy via the establishment of more efficient and less toxic radiobiological models for treatment planning compared to conventional models. Thus, we will review the most updated findings about these effects and outline their mechanisms and potential applications in cancer treatment with a special focus on the brain, lung, and breast cancers.
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Affiliation(s)
- Rong Wang
- Department of Radiation, Fifth People's Hospital of Qinghai Province, Xi Ning, Qing Hai 810007, China.,Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, Ohio 43210, USA
| | - Tingyang Zhou
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, Ohio 43210, USA.,Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio 43210, USA
| | - Wei Liu
- Department of Radiation Oncology, Mayo Clinic Arizona, Phoenix, Arizona 85054, USA
| | - Li Zuo
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, Ohio 43210, USA.,Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio 43210, USA
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195
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Fiorillo M, Peiris-Pagès M, Sanchez-Alvarez R, Bartella L, Di Donna L, Dolce V, Sindona G, Sotgia F, Cappello AR, Lisanti MP. Bergamot natural products eradicate cancer stem cells (CSCs) by targeting mevalonate, Rho-GDI-signalling and mitochondrial metabolism. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2018; 1859:984-996. [PMID: 29626418 DOI: 10.1016/j.bbabio.2018.03.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/05/2018] [Accepted: 03/23/2018] [Indexed: 12/12/2022]
Abstract
Here, we show that a 2:1 mixture of Brutieridin and Melitidin, termed "BMF", has a statin-like properties, which blocks the action of the rate-limiting enzyme for mevalonate biosynthesis, namely HMGR (3-hydroxy-3-methylglutaryl-CoA-reductase). Moreover, our results indicate that BMF functionally inhibits several key characteristics of CSCs. More specifically, BMF effectively i) reduced ALDH activity, ii) blocked mammosphere formation and iii) inhibited the activation of CSC-associated signalling pathways (STAT1/3, Notch and Wnt/beta-catenin) targeting Rho-GDI-signalling. In addition, BMF metabolically inhibited mitochondrial respiration (OXPHOS) and fatty acid oxidation (FAO). Importantly, BMF did not show the same toxic side-effects in normal fibroblasts that were observed with statins. Lastly, we show that high expression of the mRNA species encoding HMGR is associated with poor clinical outcome in breast cancer patients, providing a potential companion diagnostic for BMF-directed personalized therapy.
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Affiliation(s)
- Marco Fiorillo
- Paterson Institute, University of Manchester, Withington M20 4BX, United Kingdom; Translational Medicine, School of Environment and Life Sciences, Biomedical Research Centre (BRC), University of Salford, Greater Manchester M5 4WT, United Kingdom; The Department of Pharmacy, Health and Nutritional Sciences, The University of Calabria, Cosenza, Italy
| | - Maria Peiris-Pagès
- Paterson Institute, University of Manchester, Withington M20 4BX, United Kingdom
| | - Rosa Sanchez-Alvarez
- Paterson Institute, University of Manchester, Withington M20 4BX, United Kingdom
| | - Lucia Bartella
- The Department of Chemistry and Chemical Technologies (CTC) of the University of Calabria, Cosenza, Italy
| | - Leonardo Di Donna
- The Department of Chemistry and Chemical Technologies (CTC) of the University of Calabria, Cosenza, Italy
| | - Vincenza Dolce
- The Department of Pharmacy, Health and Nutritional Sciences, The University of Calabria, Cosenza, Italy
| | - Giovanni Sindona
- The Department of Chemistry and Chemical Technologies (CTC) of the University of Calabria, Cosenza, Italy
| | - Federica Sotgia
- Paterson Institute, University of Manchester, Withington M20 4BX, United Kingdom; Translational Medicine, School of Environment and Life Sciences, Biomedical Research Centre (BRC), University of Salford, Greater Manchester M5 4WT, United Kingdom.
| | - Anna Rita Cappello
- The Department of Pharmacy, Health and Nutritional Sciences, The University of Calabria, Cosenza, Italy.
| | - Michael P Lisanti
- Paterson Institute, University of Manchester, Withington M20 4BX, United Kingdom; Translational Medicine, School of Environment and Life Sciences, Biomedical Research Centre (BRC), University of Salford, Greater Manchester M5 4WT, United Kingdom.
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196
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Liotti F, De Pizzol M, Allegretti M, Prevete N, Melillo RM. Multiple anti-tumor effects of Reparixin on thyroid cancer. Oncotarget 2018; 8:35946-35961. [PMID: 28415590 PMCID: PMC5482629 DOI: 10.18632/oncotarget.16412] [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: 10/19/2016] [Accepted: 03/11/2017] [Indexed: 12/13/2022] Open
Abstract
Background Expression of IL-8 and its receptors CXCR1 and CXCR2 is a common occurrence in human epithelial thyroid cancer (TC). In human TC samples, IL-8 expression is associated with tumor progression. IL-8 enhances proliferation, survival, motility, and leads to the maintenance of stemness features and tumor-initiating ability of TC cells. Here, we studied the effects of Reparixin (formerly Repertaxin), a small molecular weight CXCR1 and CXCR2 inhibitor, on the malignant phenotype of various TC cell lines. Results Reparixin impaired the viability of epithelial thyroid cancerous cells, but not that of the non-malignant counterpart. Reparixin treatment significantly decreased TC cell survival, proliferation, Epithelial-to-Mesenchymal Transition (EMT) and stemness. CXCR1 and CXCR2 silencing abolished these effects. Reparixin sensitized TC cells to Docetaxel and Doxorubicin in culture. Used as single agent, Reparixin significantly inhibited TC cell tumorigenicity in immunodeficient mice. Finally, Reparixin potentiated the effects of Docetaxel on TC cell xenotransplants in mice. Materials and Methods We assessed the effects of Reparixin on TC cell viability (by growth curves, BrdU incorporation, TUNEL assay), EMT (by RT-PCR, Flow Cytometry, Migration assays), stemness (by RT-PCR, Flow Cytometry, sphere-formation and self-renewal), and tumorigenicity (by xenotransplantation in nude mice). Conclusions The present study suggests that Reparixin, both alone and in combination with classic chemotherapics, represents a novel potential therapeutic strategy for aggressive forms of TC.
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Affiliation(s)
- Federica Liotti
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, University of Naples "Federico II", Naples, Italy
| | | | | | - Nella Prevete
- Dipartimento di Scienze Mediche Traslazionali, University of Naples "Federico II", Naples, Italy.,Istituto di Endocrinologia ed Oncologia Sperimentale del CNR "G. Salvatore", Naples, Italy
| | - Rosa Marina Melillo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, University of Naples "Federico II", Naples, Italy.,Istituto di Endocrinologia ed Oncologia Sperimentale del CNR "G. Salvatore", Naples, Italy
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197
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Stem cell autocrine CXCL12/CXCR4 stimulates invasion and metastasis of esophageal cancer. Oncotarget 2018; 8:36149-36160. [PMID: 28193907 PMCID: PMC5482645 DOI: 10.18632/oncotarget.15254] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 12/01/2016] [Indexed: 12/16/2022] Open
Abstract
Esophageal cancer is one of the most common malignant tumors of the digestive tract. The greatest obstacle to the curing of esophageal cancer is its propensity to spread and metastasize. Esophageal cancer stem cells are considered the source for recurrence and metastasis of the tumors. While clinical evidence suggested that continuous up-regulation of CXCL12/CXCR4 was significantly associated with poor prognosis in patients with esophageal cancer, but the role and mechanism of CXCL12/CXCR4 in the invasion and metastasis of esophageal cancer has not been reported by far. This study found that esophageal cancer stem cells not only autocrine a great amount of CXCL12, but also high expression of its corresponding receptor CXCR4. Most importantly, the ability of esophageal cancer stem cells to spread and metastasize could be inhibited by blockage of CXCR4 with inhibitors or shRNA approaches both in vivo and in vitro studies. The important role of CXCL12 in the invasion and metastasis of esophageal cancer stem cells was also confirmed by loss-of-function and gain-of-function strategies. Mechanistically, we demonstrated that CXCL12/CXCR4 activated the ERK1/2 pathway and thereby ultimately maintained the characteristics of high-level invasion and metastasis of esophageal cancer stem cells. Taken together, our findings suggested that autocrine CXCL12/CXCR4 was one of the major mechanisms underlying the metastatic property of esophageal cancer stem cells through ERK1/2 signaling pathway, and might serve as a therapeutic target for esophageal cancer patients.
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198
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Alferez DG, Simões BM, Howell SJ, Clarke RB. The Role of Steroid Hormones in Breast and Effects on Cancer Stem Cells. CURRENT STEM CELL REPORTS 2018; 4:81-94. [PMID: 29600163 PMCID: PMC5866269 DOI: 10.1007/s40778-018-0114-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Purpose of Review This review will discuss how the steroid hormones, estrogen and progesterone, as well as treatments that target steroid receptors, can regulate cancer stem cell (CSC) activity. The CSC theory proposes a hierarchical organization in tumors where at its apex lies a subpopulation of cancer cells endowed with self-renewal and differentiation capacity. Recent Findings In breast cancer (BC), CSCs have been suggested to play a key role in tumor maintenance, disease progression, and the formation of metastases. In preclinical models of BC, only a few CSCs are required sustain tumor re-growth, especially after conventional anti-endocrine treatments. CSCs include therapy-resistant clones that survive standard of care treatments like chemotherapy, irradiation, and hormonal therapy. Summary The relevance of hormones for both normal mammary gland and BC development is well described, but it was only recently that the activities of hormones on CSCs have been investigated, opening new directions for future BC treatments and CSCs.
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Affiliation(s)
- Denis G. Alferez
- Breast Biology Group, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine, and Health, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4GJ UK
| | - Bruno M. Simões
- Breast Biology Group, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine, and Health, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4GJ UK
| | - Sacha J. Howell
- Breast Biology Group, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine, and Health, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4GJ UK
- Department of Medical Oncology, The University of Manchester, The Christie NHS Foundation Trust, Manchester, M20 4BX UK
| | - Robert B. Clarke
- Breast Biology Group, Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine, and Health, Manchester Cancer Research Centre, Wilmslow Road, Manchester, M20 4GJ UK
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199
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Phi LTH, Sari IN, Yang YG, Lee SH, Jun N, Kim KS, Lee YK, Kwon HY. Cancer Stem Cells (CSCs) in Drug Resistance and their Therapeutic Implications in Cancer Treatment. Stem Cells Int 2018; 2018:5416923. [PMID: 29681949 PMCID: PMC5850899 DOI: 10.1155/2018/5416923] [Citation(s) in RCA: 527] [Impact Index Per Article: 87.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 01/11/2018] [Indexed: 12/14/2022] Open
Abstract
Cancer stem cells (CSCs), also known as tumor-initiating cells (TICs), are suggested to be responsible for drug resistance and cancer relapse due in part to their ability to self-renew themselves and differentiate into heterogeneous lineages of cancer cells. Thus, it is important to understand the characteristics and mechanisms by which CSCs display resistance to therapeutic agents. In this review, we highlight the key features and mechanisms that regulate CSC function in drug resistance as well as recent breakthroughs of therapeutic approaches for targeting CSCs. This promises new insights of CSCs in drug resistance and provides better therapeutic rationales to accompany novel anticancer therapeutics.
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Affiliation(s)
- Lan Thi Hanh Phi
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Asan, Republic of Korea
| | - Ita Novita Sari
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Asan, Republic of Korea
| | - Ying-Gui Yang
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Asan, Republic of Korea
| | - Sang-Hyun Lee
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Asan, Republic of Korea
| | - Nayoung Jun
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Asan, Republic of Korea
| | - Kwang Seock Kim
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Asan, Republic of Korea
| | - Yun Kyung Lee
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Asan, Republic of Korea
| | - Hyog Young Kwon
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Asan, Republic of Korea
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200
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Pindiprolu SKSS, Krishnamurthy PT, Chintamaneni PK. Pharmacological targets of breast cancer stem cells: a review. Naunyn Schmiedebergs Arch Pharmacol 2018; 391:463-479. [PMID: 29476201 DOI: 10.1007/s00210-018-1479-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 02/13/2018] [Indexed: 02/07/2023]
Abstract
Breast cancers contain small population of tumor-initiating cells called breast cancer stem cells (BCSCs), which are spared even after chemotherapy. Recently, BCSCs are implicated to be a cause of metastasis, tumor relapse, and therapy resistance in breast cancer. BCSCs have unique molecular mechanisms, which can be targeted to eliminate them. These include surface biomarkers, proteins involved in self-renewal pathways, drug efflux transporters, apoptotic/antiapoptotic proteins, autophagy, metabolism, and microenvironment regulation. The complex molecular mechanisms behind the survival of BCSCs and pharmacological targets for elimination of BCSCs are described in this review.
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Affiliation(s)
- Sai Kiran S S Pindiprolu
- Department of Pharmacology, JSS College of Pharmacy (Jagadguru Sri Shivarathreeshwara University), Rocklands, Udhagamandalam, Tamil Nadu, 643001, India
| | - Praveen T Krishnamurthy
- Department of Pharmacology, JSS College of Pharmacy (Jagadguru Sri Shivarathreeshwara University), Rocklands, Udhagamandalam, Tamil Nadu, 643001, India.
| | - Pavan Kumar Chintamaneni
- Department of Pharmacology, JSS College of Pharmacy (Jagadguru Sri Shivarathreeshwara University), Rocklands, Udhagamandalam, Tamil Nadu, 643001, India
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