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Visci G, Tolomeo D, Lonoce A, Arshadi A, Bascetta L, Trotta G, van Riel M, Vermeesch JR, Carbone R, Storlazzi CT. A novel method for the isolation of single cells mimicking circulating tumour cells adhered on Smart Bio Surface slides by Laser Capture Microdissection. PLoS One 2024; 19:e0297739. [PMID: 38457477 PMCID: PMC10923433 DOI: 10.1371/journal.pone.0297739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/11/2024] [Indexed: 03/10/2024] Open
Abstract
In recent years, the importance of isolating single cells from blood circulation for several applications, such as non-invasive tumour diagnosis, the monitoring of minimal residual disease, and the analysis of circulating fetal cells for prenatal diagnosis, urged the need to set up innovative methods. For such applications, different methods were developed. All show some weaknesses, especially a limited sensitivity, and specificity. Here we present a new method for isolating a single or a limited number of cells adhered to SBS slides (Tethis S.p.a.) (a glass slide coated with Nanostructured Titanium Dioxide) by Laser Capture Microdissection (LCM) and subsequent Whole Genome Amplification. SBS slides have been shown to have an optimal performance in immobilizing circulating tumour cells (CTCs) from early breast cancer patients. In this work, we spiked cancer cells in blood samples to mimic CTCs. By defining laser parameters to cut intact samples, we were able to isolate genetically intact single cells. We demonstrate that SBS slides are optimally suited for isolating cells using LCM and that this method provides high-quality DNA, ideal for gene-specific assays such as PCR and Sanger sequencing for mutation analysis.
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Affiliation(s)
- Grazia Visci
- Department of Biosciences, Biotechnology and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Doron Tolomeo
- Department of Biosciences, Biotechnology and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Angelo Lonoce
- Department of Biosciences, Biotechnology and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Aram Arshadi
- Department of Biosciences, Biotechnology and Environment, University of Bari Aldo Moro, Bari, Italy
| | | | - Gianluca Trotta
- Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing, Consiglio Nazionale delle Ricerche, Bari, Italy
| | | | | | | | - Clelia Tiziana Storlazzi
- Department of Biosciences, Biotechnology and Environment, University of Bari Aldo Moro, Bari, Italy
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2
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Li H, Huang H, Tan H, Jia Q, Song W, Zhang Q, Zhou B, Bai J. Key processes in tumor metastasis and therapeutic strategies with nanocarriers: a review. Mol Biol Rep 2024; 51:197. [PMID: 38270746 DOI: 10.1007/s11033-023-08910-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/14/2023] [Indexed: 01/26/2024]
Abstract
Cancer metastasis is the leading cause of cancer-related death. Metastasis occurs at all stages of tumor development, with unexplored changes occurring at the primary site and distant colonization sites. The growing understanding of the metastatic process of tumor cells has contributed to the emergence of better treatment options and strategies. This review summarizes a range of features related to tumor cell metastasis and nanobased drug delivery systems for inhibiting tumor metastasis. The mechanisms of tumor metastasis in the ideal order of metastatic progression were summarized. We focus on the prominent role of nanocarriers in the treatment of tumor metastasis, summarizing the latest applications of nanocarriers in combination with drugs to target important components and processes of tumor metastasis and providing ideas for more effective nanodrug delivery systems.
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Affiliation(s)
- Hongjie Li
- School of Clinical Medicine, Weifang Medical University, 261053, Weifang, China
| | - Haiqin Huang
- School of Bioscience and Technology, Weifang Medical University, 261053, Weifang, China
| | - Haining Tan
- National Glycoengineering Research Center, Shandong University, 250012, Jinan, China
| | - Qitao Jia
- School of Bioscience and Technology, Weifang Medical University, 261053, Weifang, China
| | - Weina Song
- Department of Pediatric Respiratory and Critical Care, Qilu Hospital of Shandong University Dezhou Hospital, 253000, Dezhou, China
| | - Qingdong Zhang
- School of Bioscience and Technology, Weifang Medical University, 261053, Weifang, China.
| | - Baolong Zhou
- School of Pharmacy, Weifang Medical University, 261053, Weifang, China.
| | - Jingkun Bai
- School of Bioscience and Technology, Weifang Medical University, 261053, Weifang, China.
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3
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Anees M, Mehrotra N, Tiwari S, Kumar D, Kharbanda S, Singh H. Polylactic acid based biodegradable hybrid block copolymeric nanoparticle mediated co-delivery of salinomycin and doxorubicin for cancer therapy. Int J Pharm 2023; 635:122779. [PMID: 36842520 DOI: 10.1016/j.ijpharm.2023.122779] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 02/05/2023] [Accepted: 02/21/2023] [Indexed: 02/28/2023]
Abstract
Existence of cancer stem cells (CSCs) are primarily responsible for chemoresistance, cancer reoccurrence and treatment failure in cancer patients. Eliminating CSCs along with bulk tumor is a necessity to achieve complete cancer inhibition. Salinomycin (SAL) has potential to specifically target and kill CSCs through blocking their multiple pathways simultaneously. SAL has also been reported to improve anti-cancer efficacy of numerous chemo-based drugs when used in combination therapy. However, clinical use of SAL is restricted due to its high off targeted toxicity. Herein, we have developed a PLA based hybrid block copolymer for concomitant delivery of SAL and doxorubicin (DOX) with an aim to reduce their adverse side effects and enhance the therapeutic efficacy of the treatment. Designed PLA based nanoplatform showed high encapsulation and sustained release profile for both the drugs. Cytotoxicity evaluation on cancer cell lines confirmed the synergistic effect of SAL:DOX co-loaded NPs. Additionally, prepared SAL NPs were also found to be highly effective against chemo-resistant cancer cells and CSCs derived from cancer patient. Most importantly, encapsulation of SAL in PLA NPs improved its pharmacokinetics and biodistribution profile. Consequently, undesired toxicity with SAL NPs was significantly reduced which in-turn increased the dose tolerability in mice as compared to free SAL. Treatment of EAC tumor bearing mice with SAL:DOX co-loaded NPs resulted in excellent tumor regression and complete inhibition of cancer reoccurrence. These results conclude that concomitant delivery of SAL and DOX using PLA based block copolymeric nano-carrier have a strong potential for cancer therapy.
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Affiliation(s)
- Mohd Anees
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Neha Mehrotra
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Sachchidanand Tiwari
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Dinesh Kumar
- National Institute of Health and Family Welfare (NIHFW), New Delhi 110067, India
| | | | - Harpal Singh
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India; All India Institute of Medical Sciences, New Delhi 110029, India.
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4
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Lee SHT, Kim JY, Kim P, Dong Z, Su CY, Ahn EH. Changes of Mutations and Copy-Number and Enhanced Cell Migration during Breast Tumorigenesis. Adv Biol (Weinh) 2023; 7:e2200072. [PMID: 36449747 PMCID: PMC10836759 DOI: 10.1002/adbi.202200072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 11/14/2022] [Indexed: 12/02/2022]
Abstract
Although cancer stem cells (CSCs) play a major role in tumorigenesis and metastasis, the role of genetic alterations in invasiveness of CSCs is still unclear. Tumor microenvironment signals, such as extracellular matrix (ECM) composition, significantly influence cell behaviors. Unfortunately, these signals are often lost in in vitro cell culture. This study determines putative CSC populations, examines genetic changes during tumorigenesis of human breast epithelial stem cells, and investigates single-cell migration properties on ECM-mimetic platforms. Whole exome sequencing data indicate that tumorigenic cells have a higher somatic mutation burden than non-tumorigenic cells, and that mutations exclusive to tumorigenic cells exhibit higher predictive deleterious scores. Tumorigenic cells exhibit distinct somatic copy number variations (CNVs) including gain of duplications in chromosomes 5 and 8. ECM-mimetic topography selectively enhances migration speed of tumorigenic cells, but not of non-tumorigenic cells, and results in a wide distribution of tumorigenic single-cell migration speeds, suggesting heterogeneity in cellular sensing of contact guidance cues. This study identifies mutations and CNVs acquired during breast tumorigenesis, which can be associated with enhanced migration of breast tumorigenic cells, and demonstrates that a nanotopographically-defined platform can be applied to recapitulate an ECM structure for investigating cellular migration in the simulated tumor microenvironment.
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Affiliation(s)
- Seung Hyuk T. Lee
- Department of Pathology, University of Washington, Seattle,
WA 98195, USA
| | - Joon Yup Kim
- Department of Pathology, University of Washington, Seattle,
WA 98195, USA
| | - Peter Kim
- Department of Bioengineering, University of Washington,
Seattle, WA 98195, USA
| | - Zhipeng Dong
- Department of Biomedical Engineering, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Chia-Yi Su
- Department of Biomedical Engineering, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Eun Hyun Ahn
- Department of Biomedical Engineering, Johns Hopkins
University, Baltimore, MD 21205, USA
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5
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Arjmand B, Hamidpour SK, Alavi-Moghadam S, Yavari H, Shahbazbadr A, Tavirani MR, Gilany K, Larijani B. Molecular Docking as a Therapeutic Approach for Targeting Cancer Stem Cell Metabolic Processes. Front Pharmacol 2022; 13:768556. [PMID: 35264950 PMCID: PMC8899123 DOI: 10.3389/fphar.2022.768556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/13/2022] [Indexed: 12/12/2022] Open
Abstract
Cancer stem cells (CSCs) are subpopulation of cells which have been demonstrated in a variety of cancer models and involved in cancer initiation, progression, and development. Indeed, CSCs which seem to form a small percentage of tumor cells, display resembling characteristics to natural stem cells such as self-renewal, survival, differentiation, proliferation, and quiescence. Moreover, they have some characteristics that eventually can demonstrate the heterogeneity of cancer cells and tumor progression. On the other hand, another aspect of CSCs that has been recognized as a central concern facing cancer patients is resistance to mainstays of cancer treatment such as chemotherapy and radiation. Owing to these details and the stated stemness capabilities, these immature progenitors of cancerous cells can constantly persist after different therapies and cause tumor regrowth or metastasis. Further, in both normal development and malignancy, cellular metabolism and stemness are intricately linked and CSCs dominant metabolic phenotype changes across tumor entities, patients, and tumor subclones. Hence, CSCs can be determined as one of the factors that correlate to the failure of common therapeutic approaches in cancer treatment. In this context, researchers are searching out new alternative or complementary therapies such as targeted methods to fight against cancer. Molecular docking is one of the computational modeling methods that has a new promise in cancer cell targeting through drug designing and discovering programs. In a simple definition, molecular docking methods are used to determine the metabolic interaction between two molecules and find the best orientation of a ligand to its molecular target with minimal free energy in the formation of a stable complex. As a comprehensive approach, this computational drug design method can be thought more cost-effective and time-saving compare to other conventional methods in cancer treatment. In addition, increasing productivity and quality in pharmaceutical research can be another advantage of this molecular modeling method. Therefore, in recent years, it can be concluded that molecular docking can be considered as one of the novel strategies at the forefront of the cancer battle via targeting cancer stem cell metabolic processes.
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Affiliation(s)
- Babak Arjmand
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- *Correspondence: Babak Arjmand, ; Bagher Larijani,
| | - Shayesteh Kokabi Hamidpour
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sepideh Alavi-Moghadam
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hanieh Yavari
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ainaz Shahbazbadr
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Kambiz Gilany
- Integrative Oncology Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
- Reproductive Immunology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- *Correspondence: Babak Arjmand, ; Bagher Larijani,
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6
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Yu C, Liu Q, Wang J. A physical mechanism of heterogeneity and micro-metastasis in stem cell, cancer and cancer stem cell. J Chem Phys 2022; 156:075103. [DOI: 10.1063/5.0078196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Chong Yu
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences, China
| | - Qiong Liu
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, China
| | - Jin Wang
- Chemistry, Physics and Astronomy, Stony Brook University, United States of America
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7
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Jiang G, Tu J, Zhou L, Dong M, Fan J, Chang Z, Zhang L, Bian X, Liu S. Single-cell transcriptomics reveal the heterogeneity and dynamic of cancer stem-like cells during breast tumor progression. Cell Death Dis 2021; 12:979. [PMID: 34675206 PMCID: PMC8531288 DOI: 10.1038/s41419-021-04261-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 09/17/2021] [Accepted: 09/29/2021] [Indexed: 12/13/2022]
Abstract
Breast cancer stem-like cells (BCSCs) play vital roles in tumorigenesis and progression. However, the origin and dynamic changes of BCSCs are still to be elucidated. Using the breast cancer mouse model MMTV-PyMT, we constructed a single-cell atlas of 31,778 cells from four distinct stages of tumor progression (hyperplasia, adenoma/MIN, early carcinoma and late carcinoma), during which malignant transition occurs. We identified that the precise cell type of ERlow epithelial cell lineage gave rise to the tumors, and the differentiation of ERhigh epithelial cell lineage was blocked. Furthermore, we discovered a specific signature with a continuum of gene expression profiles along the tumor progression and significantly correlated with clinical outcomes, and we also found a stem-like cell cluster existed among ERlow epithelial cells. Further clustering on this stem-like cluster showed several sub-clusters indicating heterogeneity of stem-like epithelial cells. Moreover, we distinguished normal and cancer stem-like cells in this stem-like epithelial cell cluster and profiled the molecular portraits from normal stem-like cell to cancer stem-like cells during the malignant transition. Finally, we found the diverse immune cell infiltration displayed immunosuppressive characteristics along tumor progression. We also found the specific expression pattern of cytokines and their corresponding cytokine receptors in BCSCs and immune cells, suggesting the possible cross-talk between BCSCs and the immune cells. These data provide a useful resource for illuminating BCSC heterogeneity and the immune cell remodeling during breast tumor progression, and shed new light on transcriptomic dynamics during the progression at the single-cell level.
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Affiliation(s)
- Guojuan Jiang
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences; Cancer Institutes; Key Laboratory of Breast Cancer in Shanghai; The Shanghai Key Laboratory of Medical Epigenetics; The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology; Shanghai Medical College; Fudan University, 200032, Shanghai, China
| | - Juchuanli Tu
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences; Cancer Institutes; Key Laboratory of Breast Cancer in Shanghai; The Shanghai Key Laboratory of Medical Epigenetics; The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology; Shanghai Medical College; Fudan University, 200032, Shanghai, China
| | - Lei Zhou
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences; Cancer Institutes; Key Laboratory of Breast Cancer in Shanghai; The Shanghai Key Laboratory of Medical Epigenetics; The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology; Shanghai Medical College; Fudan University, 200032, Shanghai, China
| | - Mengxue Dong
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences; Cancer Institutes; Key Laboratory of Breast Cancer in Shanghai; The Shanghai Key Laboratory of Medical Epigenetics; The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology; Shanghai Medical College; Fudan University, 200032, Shanghai, China
| | - Jue Fan
- Singleron Biotechnologies, Yaogu Avenue 11, 210043, Nanjing, Jiangsu, China
| | - Zhaoxia Chang
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences; Cancer Institutes; Key Laboratory of Breast Cancer in Shanghai; The Shanghai Key Laboratory of Medical Epigenetics; The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology; Shanghai Medical College; Fudan University, 200032, Shanghai, China
| | - Lixing Zhang
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences; Cancer Institutes; Key Laboratory of Breast Cancer in Shanghai; The Shanghai Key Laboratory of Medical Epigenetics; The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology; Shanghai Medical College; Fudan University, 200032, Shanghai, China
| | - Xiuwu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University); Key Laboratory of Tumor Immunopathology, Ministry of Education of China, 400038, Chongqing, China
| | - Suling Liu
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences; Cancer Institutes; Key Laboratory of Breast Cancer in Shanghai; The Shanghai Key Laboratory of Medical Epigenetics; The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology; Shanghai Medical College; Fudan University, 200032, Shanghai, China.
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8
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Zhang DY, Monteiro MJ, Liu JP, Gu WY. Mechanisms of cancer stem cell senescence: Current understanding and future perspectives. Clin Exp Pharmacol Physiol 2021; 48:1185-1202. [PMID: 34046925 DOI: 10.1111/1440-1681.13528] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 05/24/2021] [Indexed: 12/13/2022]
Abstract
Cancer stem cells (CSCs) are a small population of heterogeneous tumor cells with the capacity of self-renewal and aberrant differentiation for immortality and divergent lineages of cancer cells. In contrast to bulky tumor cells, CSCs remain less differentiated and resistant to therapy even when targeted with tissue-specific antigenic markers. This makes CSCs responsible for not only tumor initiation, development, but also tumor recurrence. Emerging evidence suggests that CSCs can undergo cell senescence, a non-proliferative state of cells in response to stress. While cell senescence attenuates tumor cell proliferation, it is commonly regarded as a tumor suppressive mechanism. However, mounting research indicates that CSC senescence also provides these cells with the capacity to evade cytotoxic effects from cancer therapy, exacerbating cancer relapse and metastasis. Recent studies demonstrate that senescence drives reprogramming of cancer cell toward stemness and promotes CSC generation. In this review, we highlight the origin, heterogeneity and senescence regulatory mechanisms of CSCs, the complex relationship between CSC senescence and tumor therapy, and the recent beneficial effects of senotherapy on eliminating senescent tumor cells.
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Affiliation(s)
- Da-Yong Zhang
- Department of Clinical Medicine, Zhejiang University City College, Hangzhou, China
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, QLD, Australia
| | - Michael J Monteiro
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, QLD, Australia
| | - Jun-Ping Liu
- Institute of Ageing Research, Hangzhou Normal University, Hangzhou, China
- Department of Immunology, Monash University Faculty of Medicine, Prahran, Vic, Australia
- Hudson Institute of Medical Research, and Department of Molecular and Translational Science, Monash University Faculty of Medicine, Clayton, Vic, Australia
| | - Wen-Yi Gu
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, QLD, Australia
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9
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Maruyama M, Nakano Y, Nishimura T, Iwata R, Matsuda S, Hayashi M, Nakai Y, Nonaka M, Sugimoto T. PC3-Secreted Microprotein Is Expressed in Glioblastoma Stem-Like Cells and Human Glioma Tissues. Biol Pharm Bull 2021; 44:910-919. [PMID: 33896885 DOI: 10.1248/bpb.b20-00868] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Glioblastoma multiforme (GBM) is the most prevalent malignant primary brain tumor with a high recurrence rate. Despite multimodal therapy including surgical resection, chemotherapy, and radiotherapy, the median survival time after the initial diagnosis of GBM is approximately 14 months. Since cancer stem cells (CSCs) are considered the leading cause of cancer recurrence, glioblastoma stem cell-targeted therapy is a promising strategy for the treatment of GBM. However, because CSC heterogeneity has been implicated in the difficulties of CSC-target therapy, more in-depth knowledge of CSC biology is still required to develop novel therapies. In this study, we established single cell-derived tumorspheres from human glioblastoma U87MG cells. One of these tumorspheres, P4E8 clone, showed CSC-like phenotypes, such as self-renewal capacity, expression of CSC markers, resistance to anti-cancer agents, and in vivo tumorigenicity. Therefore, we used P4E8 cells as a cell-based model of glioblastoma stem cells (GSCs). Gene expression analysis using microarray indicated that the most highly expressed genes in P4E8 cells compared to the parental U87MG were PC3-secreted microprotein (MSMP). Furthermore, MSMP was expressed in patient-derived GSCs and human glioma tissues at the protein level, implying that MSMP might contribute to glioma development and progression.
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Affiliation(s)
- Masato Maruyama
- Department of Anatomy and Brain Science, Kansai Medical University
| | - Yousuke Nakano
- Department of Anatomy and Brain Science, Kansai Medical University
| | - Takuya Nishimura
- Department of Anatomy and Brain Science, Kansai Medical University
| | - Ryoichi Iwata
- Department of Neurosurgery, Kansai Medical University
| | - Satoshi Matsuda
- Department of Cell Signaling, Institute of Biomedical Science, Kansai Medical University
| | | | - Yuki Nakai
- Department of Anatomy and Brain Science, Kansai Medical University
| | | | - Tetsuo Sugimoto
- Department of Anatomy and Brain Science, Kansai Medical University
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10
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Lee SH, Reed-Newman T, Anant S, Ramasamy TS. Regulatory Role of Quiescence in the Biological Function of Cancer Stem Cells. Stem Cell Rev Rep 2020; 16:1185-1207. [DOI: 10.1007/s12015-020-10031-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Plasticity in Ovarian Cancer: The Molecular Underpinnings and Phenotypic Heterogeneity. J Indian Inst Sci 2020. [DOI: 10.1007/s41745-020-00174-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Selection of reference genes suitable for normalization of RT-qPCR data in glioma stem cells. Biotechniques 2019; 68:130-137. [PMID: 31870167 DOI: 10.2144/btn-2019-0098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Considering the importance of gene expression studies for understanding the biology of glioma stem cells (GSCs), we aimed to identify the reliable reference genes in GSCs that were derived from the glioma cell lines T98G, LN229, 090116 and 091214. Quantitative real-time reverse-transcription PCR was employed using 11 reference genes identified through a PubMed literature search, and the assessment of stability through the geNorm, Normfinder and coefficient of variation methods was performed to select suitable reference genes. We found that HPRT1 and RPL13A were the most suitable reference genes, and validated the geometric mean of these genes to normalize the expression of stemness genes by GSCs. Therefore, it is necessary to select novel cell-specific reference genes with greater expression stability for gene expression studies in GSCs.
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13
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Shen Y, Pu K, Zheng K, Ma X, Qin J, Jiang L, Li J. Differentially Expressed microRNAs in MIA PaCa-2 and PANC-1 Pancreas Ductal Adenocarcinoma Cell Lines are Involved in Cancer Stem Cell Regulation. Int J Mol Sci 2019; 20:E4473. [PMID: 31510100 PMCID: PMC6770012 DOI: 10.3390/ijms20184473] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 09/07/2019] [Accepted: 09/09/2019] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignancies, and thus better understanding of its molecular pathology is crucial for us to devise more effective treatment of this deadly disease. As cancer cell line remains a convenient starting point for discovery and proof-of-concept studies, here we report the miRNA expression characteristics of two cell lines, MIA PaCa-2 and PANC-1, and discovered three miRNAs (miR-7-5p, let-7d, and miR-135b-5p) that are involved in cancer stem cells (CSCs) suppression. After transfection of each miRNA's mimic into PANC-1 cells which exhibits higher stemness feature than MIA-PaCa-2 cells, partial reduction of CSC surface markers and inhibition of tumor sphere formation were observed. These results enlighten us to consider miRNAs as potential therapeutic agents for pancreatic cancer patients via specific and effective inhibition of CSCs.
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Affiliation(s)
- Ye Shen
- Key Laboratory for Nano-Bio Interface Research, Nano-Bio-Chem Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Kefeng Pu
- Key Laboratory for Nano-Bio Interface Research, Nano-Bio-Chem Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Kexiao Zheng
- Key Laboratory for Nano-Bio Interface Research, Nano-Bio-Chem Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Xiaochuan Ma
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jingyi Qin
- Key Laboratory for Nano-Bio Interface Research, Nano-Bio-Chem Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Li Jiang
- Key Laboratory for Nano-Bio Interface Research, Nano-Bio-Chem Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Jiong Li
- Key Laboratory for Nano-Bio Interface Research, Nano-Bio-Chem Centre, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China.
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14
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Dzobo K, Senthebane DA, Thomford NE, Rowe A, Dandara C, Parker MI. Not Everyone Fits the Mold: Intratumor and Intertumor Heterogeneity and Innovative Cancer Drug Design and Development. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2019; 22:17-34. [PMID: 29356626 DOI: 10.1089/omi.2017.0174] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Disruptive innovations in medicine are game-changing in nature and bring about radical shifts in the way we understand human diseases, their treatment, and/or prevention. Yet, disruptive innovations in cancer drug design and development are still limited. Therapies that cure all cancer patients are in short supply or do not exist at all. Chief among the causes of this predicament is drug resistance, a mechanism that is much more dynamic than previously understood. Drug resistance has limited the initial success experienced with biomarker-guided targeted therapies as well. A major contributor to drug resistance is intratumor heterogeneity. For example, within solid tumors, there are distinct subclones of cancer cells, presenting profound complexity to cancer treatment. Well-known contributors to intratumor heterogeneity are genomic instability, the microenvironment, cellular genotype, cell plasticity, and stochastic processes. This expert review explains that for oncology drug design and development to be more innovative, we need to take into account intratumor heterogeneity. Initially thought to be the preserve of cancer cells, recent evidence points to the highly heterogeneous nature and diverse locations of stromal cells, such as cancer-associated fibroblasts (CAFs) and cancer-associated macrophages (CAMs). Distinct subpopulations of CAFs and CAMs are now known to be located immediately adjacent and distant from cancer cells, with different subpopulations exerting different effects on cancer cells. Disruptive innovation and precision medicine in clinical oncology do not have to be a distant reality, but can potentially be achieved by targeting these spatially separated and exclusive cancer cell subclones and CAF subtypes. Finally, we emphasize that disruptive innovations in drug discovery and development will likely come from drugs whose effect is not necessarily tumor shrinkage.
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Affiliation(s)
- Kevin Dzobo
- 1 International Centre for Genetic Engineering and Biotechnology (ICGEB) , Cape Town, South Africa .,2 Division of Medical Biochemistry, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town , Cape Town, South Africa
| | - Dimakatso Alice Senthebane
- 1 International Centre for Genetic Engineering and Biotechnology (ICGEB) , Cape Town, South Africa .,2 Division of Medical Biochemistry, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town , Cape Town, South Africa
| | - Nicholas Ekow Thomford
- 3 Pharmacogenetics Research Group, Division of Human Genetics, Department of Pathology, Faculty of Health Sciences, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town , Cape Town, South Africa
| | - Arielle Rowe
- 1 International Centre for Genetic Engineering and Biotechnology (ICGEB) , Cape Town, South Africa
| | - Collet Dandara
- 3 Pharmacogenetics Research Group, Division of Human Genetics, Department of Pathology, Faculty of Health Sciences, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town , Cape Town, South Africa
| | - M Iqbal Parker
- 2 Division of Medical Biochemistry, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town , Cape Town, South Africa
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15
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Metabolomic Alterations in Thyrospheres and Adherent Parental Cells in Papillary Thyroid Carcinoma Cell Lines: A Pilot Study. Int J Mol Sci 2018; 19:ijms19102948. [PMID: 30262749 PMCID: PMC6213810 DOI: 10.3390/ijms19102948] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 09/25/2018] [Indexed: 12/13/2022] Open
Abstract
Papillary thyroid carcinoma (PTC), is characterized by a heterogeneous group of cells, including cancer stem cells (CSCs), crucially involved in tumor initiation, progression and recurrence. CSCs appear to have a distinct metabolic phenotype, compared to non-stem cancer cells. How they adapt their metabolism to the cancer process is still unclear, and no data are yet available for PTC. We recently isolated thyrospheres, containing cancer stem-like cells, from B-CPAP and TPC-1 cell lines derived from PTC of the BRAF-like expression profile class, and stem-like cells from Nthy-ori3-1 normal thyreocyte-derived cell line. In the present study, gas chromatography/mass spectrometry metabolomic profiles of cancer thyrospheres were compared to cancer parental adherent cells and to non cancer thyrospheres profiles. A statistically significant decrease of glycolytic pathway metabolites and variations in Krebs cycle metabolites was found in thyrospheres versus parental cells. Moreover, cancer stem-like cells showed statistically significant differences in Krebs cycle intermediates, amino acids, cholesterol, and fatty acids content, compared to non-cancer stem-like cells. For the first time, data are reported on the metabolic profile of PTC cancer stem-like cells and confirm that changes in metabolic pathways can be explored as new biomarkers and targets for therapy in this tumor.
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Salazar‐García L, Pérez‐Sayáns M, García‐García A, Carracedo Á, Cruz R, Lozano A, Sobrino B, Barros F. Whole exome sequencing approach to analysis of the origin of cancer stem cells in patients with head and neck squamous cell carcinoma. J Oral Pathol Med 2018; 47:938-944. [DOI: 10.1111/jop.12771] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/25/2018] [Accepted: 07/27/2018] [Indexed: 12/20/2022]
Affiliation(s)
| | - Mario Pérez‐Sayáns
- Oral Medicine, Oral Surgery and Implantology Unit Faculty of Medicine and Dentistry Instituto de Investigación Sanitaria de Santiago (IDIS) Santiago de Compostela Spain
| | - Abel García‐García
- Oral Medicine, Oral Surgery and Implantology Unit Faculty of Medicine and Dentistry Instituto de Investigación Sanitaria de Santiago (IDIS) Santiago de Compostela Spain
| | - Ángel Carracedo
- Fundacion Publica Galega de Medicina Xenomica‐SERGAS Santiago de Compostela Spain
- Grupo de Medicina Xenómica CIBER de Enfermedades Raras (CIBERER)‐Instituto de Salud Carlos III Universidade de Santiago de Compostela Santiago de Compostela Spain
| | - Raquel Cruz
- Grupo de Medicina Xenómica CIBER de Enfermedades Raras (CIBERER)‐Instituto de Salud Carlos III Universidade de Santiago de Compostela Santiago de Compostela Spain
| | - Antonio Lozano
- Department of Gastroenterology University Hospital Santiago de Compostela Spain
| | - Beatriz Sobrino
- Fundacion Publica Galega de Medicina Xenomica‐SERGAS Santiago de Compostela Spain
| | - Francisco Barros
- Fundacion Publica Galega de Medicina Xenomica‐SERGAS Santiago de Compostela Spain
- Grupo de Medicina Xenómica CIBER de Enfermedades Raras (CIBERER)‐Instituto de Salud Carlos III Universidade de Santiago de Compostela Santiago de Compostela Spain
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17
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Kamalidehghan B, Ghafouri-Fard S, Motevaseli E, Ahmadipour F. Inhibition of human prostate cancer (PC-3) cells and targeting of PC-3-derived prostate cancer stem cells with koenimbin, a natural dietary compound from Murraya koenigii (L) Spreng. Drug Des Devel Ther 2018; 12:1119-1133. [PMID: 29765202 PMCID: PMC5942175 DOI: 10.2147/dddt.s156826] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Inhibition of prostate cancer stem cells (PCSCs) is an efficient curative maintenance protocol for the prevention of prostate cancer. The objectives of this study were to assess the efficiency of koenimbin, a major biologically active component of Murraya koenigii (L) Spreng, in the suppression of PC-3 cells and to target PC-3-derived cancer stem cells (CSCs) through apoptotic and CSC signaling pathways in vitro. MATERIALS AND METHODS The antiproliferative activity of koenimbin was examined using MTT, and the apoptotic detection was carried out by acridine orange/propidium iodide (AO/PI) double-staining and multiparametric high-content screening (HCS) assays. Caspase bioluminescence assay, reverse transcription polymerase chain reaction (RT-PCR), and immunoblotting were conducted to confirm the expression of apoptotic-associated proteins. Cell cycle analysis was investigated using flow cytometry. Involvement of nuclear factor-kappa B (NF-κB) was analyzed using HCS assay. Aldefluor™ and prostasphere formation examinations were used to evaluate the impact of koenimbin on PC-3 CSCs in vitro. RESULTS Koenimbin remarkably inhibited cell proliferation in a dose-dependent manner. Koenimbin induced nuclear condensation, formation of apoptotic bodies, and G0/G1 phase arrest of PC-3 cells. Koenimbin triggered the activation of caspase-3/7 and caspase-9 and the release of cytochrome c, decreased anti-apoptotic Bcl-2 and HSP70 proteins, increased pro-apoptotic Bax proteins, and inhibited NF-κB translocation from the cytoplasm to the nucleus, leading to the activation of the intrinsic apoptotic pathway. Koenimbin significantly (P<0.05) reduced the aldehyde dehydrogenase-positive cell population of PC-3 CSCs and the size and number of PC-3 CSCs in primary, secondary, and tertiary prostaspheres in vitro. CONCLUSION Koenimbin has chemotherapeutic potential that may be employed for future treatment through decreasing the recurrence of cancer, resulting in the improvement of cancer management strategies and patient survival.
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Affiliation(s)
- Behnam Kamalidehghan
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Ahmadipour
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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18
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Cai Z, Cao Y, Luo Y, Hu H, Ling H. Signalling mechanism(s) of epithelial-mesenchymal transition and cancer stem cells in tumour therapeutic resistance. Clin Chim Acta 2018; 483:156-163. [PMID: 29709449 DOI: 10.1016/j.cca.2018.04.033] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 04/24/2018] [Accepted: 04/25/2018] [Indexed: 02/06/2023]
Abstract
Epithelial-mesenchymal transition (EMT) leads to tumour progression, including tumour metastasis, disease recurrence and therapy resistance. Cancer stem cells (CSCs) are a small group of cells that have the ability to undergo self-renewal and heterogeneous differentiation, which play a key role in the occurrence and development of cancer. EMT can promote tumour cells to develop stem cell characteristics, which makes tumours more difficult to treat. Therefore, exploring the role of EMT and CSCs in the metastasis of cancer is of great significance to guide tumour treatment and prognosis. In this review, we discuss EMT and CSCs in cancer progression and therapeutic resistance, with a special focus on the common characteristics and relationships between these processes, to explore the crucial relationships in the development of improved anti-tumour therapies. AREAS COVERED In this brief review article, the author has searched PubMed and Wikipedia for original research and reviewed articles to gather current information on the association of CSCs and EMT with therapeutic resistance characteristics, cancer growth and metastasis, which are believed to be regulated by the TGF-β, Wnt, Hedgehog (Hh), β-catenin, STAT3, Notch, and Nanog signalling pathways and other factors (miRNAs, microenvironment and additional cytokines).
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Affiliation(s)
- Zhihong Cai
- Key Laboratory of Tumor Cellular & Molecular Pathology (University of South China),College of Hunan Province, Cancer Research Institute, University of South China, Hengyang, PR China
| | - Yijing Cao
- Key Laboratory of Tumor Cellular & Molecular Pathology (University of South China),College of Hunan Province, Cancer Research Institute, University of South China, Hengyang, PR China
| | - Yichen Luo
- Key Laboratory of Tumor Cellular & Molecular Pathology (University of South China),College of Hunan Province, Cancer Research Institute, University of South China, Hengyang, PR China
| | - Haobin Hu
- Key Laboratory of Tumor Cellular & Molecular Pathology (University of South China),College of Hunan Province, Cancer Research Institute, University of South China, Hengyang, PR China
| | - Hui Ling
- Key Laboratory of Tumor Cellular & Molecular Pathology (University of South China),College of Hunan Province, Cancer Research Institute, University of South China, Hengyang, PR China.
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19
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Su YH, Lin TY, Liu HJ, Chuang CK. A set of cancer stem cell homing peptides associating with the glycan moieties of glycosphingolipids. Oncotarget 2018; 9:20490-20507. [PMID: 29755667 PMCID: PMC5945507 DOI: 10.18632/oncotarget.24960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 03/12/2018] [Indexed: 12/15/2022] Open
Abstract
Cancer stem cells (CSCs) are currently believed to be involved in tumor metastasis and relapse. And treatments against CSCs are well concerned issues. Peptides targeting to mouse and human CSCs were screened from an M13 phage display library. The first subset of cancer stem cell homing peptides (CSC HPs), CSC HP-1 to -12, were screened with mouse EMT6 breast cancer stem cells. Among them, CSC HP-1, CSC HP-3, CSC HP-8, CSC HP-9, and CSC HP-10 can bind to mouse CT26 colon CSCs; CSC HP-1, CSC HP-2, CSC HP-3, and CSC HP-8 can bind to mouse Hepa1-6 liver CSCs; as well as CSC HP-1, CSC HP-2, CSC HP-3, CSC HP-8, CSC HP-9, CSC HP-10, and CSC HP-11 can bind to human PANC-1 pancreatic CSCs. The second subset of cancer stem cell homing peptides, CSC HP-hP1 to -hP3, were screened with human PANC-1 pancreatic CSCs. Both CSC HP-hP1 and CSC HP-hP2 were demonstrated able to bind mouse EMT6, CT26 and Hepa1-6 CSCs as well as human colorectal HT29 and lung H1650 CSCs. CSC HP-1 and CSC HP-hP1 could strongly associate with the Globo 4 and Lewis Y glycan epitopes coupled on a microarray chip or Globo 4 and Globo H conjugated on bovine serum albumin. CSC HP-10, CSC HP-11 and CSC HP-hP2 could associate with the disialylated saccharide Neu5Ac-α-2,6-Gal-β-1,3-(Neu5Ac-α-2,6)-GalNAc coupled on a microarray chip. These results indicate that the CSC HPs may target to the known stem cell glycan markers GbH and Lewis Y as well as the disialylated saccharide.
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Affiliation(s)
- Yu-Hsiu Su
- Division of Biotechnology, Animal Technology Laboratories, Agricultural Technology Research Institute, Hsinchu City 30093, Taiwan
- Institute of Molecular Biology, National Chung Hsing University, Taichung City 40227, Taiwan
| | - Tai-Yun Lin
- Division of Biotechnology, Animal Technology Laboratories, Agricultural Technology Research Institute, Hsinchu City 30093, Taiwan
| | - Hung-Jen Liu
- Institute of Molecular Biology, National Chung Hsing University, Taichung City 40227, Taiwan
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung City 40227, Taiwan
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung City 40227, Taiwan
| | - Chin-Kai Chuang
- Division of Biotechnology, Animal Technology Laboratories, Agricultural Technology Research Institute, Hsinchu City 30093, Taiwan
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20
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de Campos RP, Schultz IC, de Andrade Mello P, Davies S, Gasparin MS, Bertoni APS, Buffon A, Wink MR. Cervical cancer stem-like cells: systematic review and identification of reference genes for gene expression. Cell Biol Int 2018; 42:139-152. [PMID: 28949053 DOI: 10.1002/cbin.10878] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 09/24/2017] [Indexed: 12/21/2022]
Abstract
Cervical cancer is the fourth most common cancer affecting women worldwide. Among many factors, the presence of cancer stem cells, a subpopulation of cells inside the tumor, has been associated with a worse prognosis. Considering the importance of gene expression studies to understand the biology of cervical cancer stem cells (CCSC), this work identifies stable reference genes for cervical cancer cell lines SiHa, HeLa, and ME180 as well as their respective cancer stem-like cells. A literature review was performed to identify validated reference genes currently used to normalize RT-qPCR data in cervical cancer cell lines. Then, cell lines were cultured in regular monolayer or in a condition that favors tumor sphere formation. RT-qPCR was performed using five reference genes: ACTB, B2M, GAPDH, HPRT1, and TBP. Stability was assessed to validate the selected genes as suitable reference genes. The evaluation validated B2M, GAPDH, HPRT1, and TBP in these experimental conditions. Among them, GAPDH and TBP presented the lowest variability according to the analysis by Normfinder, Bestkeeper, and ΔCq methods, being therefore the most adequate genes to normalize the combination of all samples. These results suggest that B2M, GAPDH, HPRT1, and TBP are suitable reference genes to normalize RT-qPCR data of established cervical cancer cell lines SiHa, HeLa, and ME180 as well as their derived cancer stem-like cells. Indeed, GAPDH and TBP seem to be the most convenient choices for studying gene expression in these cells in monolayers or spheres.
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Affiliation(s)
- Rafael P de Campos
- Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre 90050-170, Rio Grande do Sul, Brazil
| | - Iago C Schultz
- Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre 90050-170, Rio Grande do Sul, Brazil
| | - Paola de Andrade Mello
- Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre 90050-170, Rio Grande do Sul, Brazil
- Laboratório de Análises Bioquímicas e Citológicas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Rio Grande do Sul, Brazil
| | - Samuel Davies
- Laboratório de Análises Bioquímicas e Citológicas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Rio Grande do Sul, Brazil
| | - Manuela S Gasparin
- Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre 90050-170, Rio Grande do Sul, Brazil
- Laboratório de Análises Bioquímicas e Citológicas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Rio Grande do Sul, Brazil
| | - Ana P S Bertoni
- Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre 90050-170, Rio Grande do Sul, Brazil
| | - Andréia Buffon
- Laboratório de Análises Bioquímicas e Citológicas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Rio Grande do Sul, Brazil
| | - Márcia R Wink
- Laboratório de Biologia Celular, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre 90050-170, Rio Grande do Sul, Brazil
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21
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Saygin C, Samour M, Chumakova A, Jarrar A, Lathia JD, Reizes O. Reporter Systems to Study Cancer Stem Cells. Methods Mol Biol 2018; 1516:319-333. [PMID: 27221339 DOI: 10.1007/7651_2016_360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cancer stem cells have been identified in primary tumors, patient derived xenografts, and established cancer cell lines. The development of reporters has enabled investigators to rapidly enrich for these cells and more importantly track these cells in real time. Here we describe the current state of the reporter field and their use and limitations in multiple cancers.
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Affiliation(s)
- Caner Saygin
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, NC 10, Cleveland, OH, 44195, USA
| | - Mohamed Samour
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, NC 10, Cleveland, OH, 44195, USA.,Medicine Institute, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Anastasia Chumakova
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, NC 10, Cleveland, OH, 44195, USA
| | - Awad Jarrar
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, NC 10, Cleveland, OH, 44195, USA
| | - Justin D Lathia
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, NC 10, Cleveland, OH, 44195, USA.,Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, 44195, USA.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, 44195, USA.,Case Comprehensive Cancer Center, Cleveland, OH, 44106, USA
| | - Ofer Reizes
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, NC 10, Cleveland, OH, 44195, USA. .,Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, 44195, USA. .,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine at Case Western Reserve University, Cleveland, OH, 44195, USA. .,Case Comprehensive Cancer Center, Cleveland, OH, 44106, USA.
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22
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Mehta P, Novak C, Raghavan S, Ward M, Mehta G. Self-Renewal and CSCs In Vitro Enrichment: Growth as Floating Spheres. Methods Mol Biol 2018; 1692:61-75. [PMID: 28986887 DOI: 10.1007/978-1-4939-7401-6_6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cancer stem cells (CSC) are a vital component to the progression and reoccurrence of cancers, making them a primary target of study for both fundamental understanding of cancer biology and the development of effective and targeted treatments. CSCs reside in a complex 3D microenvironment, and the 3D spheroids are an indispensable tool in tumor biology due to their 3D structure and replication of the tumor microenvironment. Within this chapter the methodology for CSC isolation, suspension culture in hanging drop model, and characterization assays for CSC are described. First, the methodology for identifying and isolating CSCs from patient tumors, ascites, or cancer cell lines is described through the use of FACS analysis. Next, a detailed description of 3D hanging drop model for generating CSC spheroids is provided, followed by maintenance and monitoring techniques for extended 3D culture. Analysis methods are described for the quantification of CSC spheroid proliferation and viability tracking, throughout culture by on-plate alamarBlue fluorescence. Additional viability assays are described utilizing confocal microscopy with Live/Dead Viability/Cytotoxicity Kit. The characterization of CSCs populations within spheroids is described through FACS analysis. Further, an immunohistochemistry procedure is described for cell-cell and cell-matrix interaction assessment. Finally, several notes and tips for successful experiments with 3D CSC spheroids on the hanging drop model are provided. These methods are not only applicable to CSCs within a variety of tumor cell types, for not only understanding the fundamental tumor biology, but also for drug screening and development of preclinical chemotherapeutic strategies.
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Affiliation(s)
- Pooja Mehta
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109-2800, USA
| | - Caymen Novak
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109-2800, USA
| | - Shreya Raghavan
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109-2800, USA
| | - Maria Ward
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109-2800, USA
| | - Geeta Mehta
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109-2800, USA.
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109-2800, USA.
- Department of Macromolecular Science and Engineering, University of Michigan, North Campus Research Complex (NCRC), 2800 Plymouth Road, Building 28, Room 3044W, Ann Arbor, 48109-2800, MI, USA.
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23
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Farahmand L, Darvishi B, Salehi M, Samadi Kouchaksaraei S, Majidzadeh-A K. Functionalised nanomaterials for eradication of CSCs, a promising approach for overcoming tumour heterogeneity. J Drug Target 2017; 26:649-657. [DOI: 10.1080/1061186x.2017.1405426] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Leila Farahmand
- Recombinant Proteins Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Behrad Darvishi
- Recombinant Proteins Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Malihe Salehi
- Recombinant Proteins Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | | | - Keivan Majidzadeh-A
- Recombinant Proteins Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
- Tasnim Biotechnology Research Center, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
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24
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Carnosol controls the human glioblastoma stemness features through the epithelial-mesenchymal transition modulation and the induction of cancer stem cell apoptosis. Sci Rep 2017; 7:15174. [PMID: 29123181 PMCID: PMC5680298 DOI: 10.1038/s41598-017-15360-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 10/25/2017] [Indexed: 12/18/2022] Open
Abstract
A high cell proliferation rate, invasiveness and resistance to chemotherapy are the main features of glioblastoma (GBM). GBM aggressiveness has been widely associated both with a minor population of cells presenting stem-like properties (cancer stem-like cells, CSCs) and with the ability of tumor cells to acquire a mesenchymal phenotype (epithelial-mesenchymal transition, EMT). Carnosol (CAR), a natural inhibitor of MDM2/p53 complex, has been attracted attention for its anti-cancer effects on several tumor types, including GBM. Herein, the effects of CAR on U87MG-derived CSC viability and stemness features were evaluated. CAR decreased the rate of CSC formation and promoted the CSC apoptotic cell death through p53 functional reactivation. Moreover, CAR was able to control the TNF-α/TGF-β-induced EMT, counteracting the effects of the cytokine on EMT master regulator genes (Slug, Snail, Twist and ZEB1) and modulating the activation of miR-200c, a key player in the EMT process. Finally, CAR was able to increase the temozolomide (TMZ) anti-proliferative effects. These findings demonstrate that CAR affected the different intracellular mechanism of the complex machinery that regulates GBM stemness. For the first time, the diterpene was highlighted as a promising lead for the development of agents able to decrease the stemness features, thus controlling GBM aggressiveness.
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25
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Schwalie PC, Ordóñez-Morán P, Huelsken J, Deplancke B. Cross-Tissue Identification of Somatic Stem and Progenitor Cells Using a Single-Cell RNA-Sequencing Derived Gene Signature. Stem Cells 2017; 35:2390-2402. [PMID: 29044933 DOI: 10.1002/stem.2719] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 09/27/2017] [Accepted: 10/02/2017] [Indexed: 12/15/2022]
Abstract
A long-standing question in biology is whether multipotent somatic stem and progenitor cells (SSPCs) feature molecular properties that could guide their system-independent identification. Population-based transcriptomic studies have so far not been able to provide a definite answer, given the rarity and heterogeneous nature of these cells. Here, we exploited the resolving power of single-cell RNA-sequencing to develop a computational model that is able to accurately distinguish SSPCs from differentiated cells across tissues. The resulting classifier is based on the combined expression of 23 genes including known players in multipotency, proliferation, and tumorigenesis, as well as novel ones, such as Lcp1 and Vgll4 that we functionally validate in intestinal organoids. We show how this approach enables the identification of stem-like cells in still ambiguous systems such as the pancreas and the epidermis as well as the exploration of lineage commitment hierarchies, thus facilitating the study of biological processes such as cellular differentiation, tissue regeneration, and cancer. Stem Cells 2017;35:2390-2402.
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Affiliation(s)
- Petra C Schwalie
- Laboratory of Systems Biology and Genetics, Institute of Bioengineering and Swiss Institute of Bioinformatics, CH-1015, Lausanne, Switzerland
| | - Paloma Ordóñez-Morán
- ISREC (Swiss Institute for Experimental Cancer Research), School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Joerg Huelsken
- ISREC (Swiss Institute for Experimental Cancer Research), School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Bart Deplancke
- Laboratory of Systems Biology and Genetics, Institute of Bioengineering and Swiss Institute of Bioinformatics, CH-1015, Lausanne, Switzerland
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26
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Cuyàs E, Verdura S, Fernández-Arroyo S, Bosch-Barrera J, Martin-Castillo B, Joven J, Menendez JA. Metabolomic mapping of cancer stem cells for reducing and exploiting tumor heterogeneity. Oncotarget 2017; 8:99223-99236. [PMID: 29245896 PMCID: PMC5725087 DOI: 10.18632/oncotarget.21834] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 09/29/2017] [Indexed: 02/06/2023] Open
Abstract
Personalized cancer medicine based on the analysis of tumors en masse is limited by tumor heterogeneity, which has become a major obstacle to effective cancer treatment. Cancer stem cells (CSC) are emerging as key drivers of inter- and intratumoral heterogeneity. CSC have unique metabolic dependencies that are required not only for specific bioenergetic/biosynthetic demands but also for sustaining their operational epigenetic traits, i.e. self-renewal, tumor-initiation, and plasticity. Given that the metabolome is the final downstream product of all the –omic layers and, therefore, most representative of the biological phenotype, we here propose that a novel approach to better understand the complexity of tumor heterogeneity is by mapping and cataloging small numbers of CSC metabolomic phenotypes. The narrower metabolomic diversity of CSC states could be employed to reduce multidimensional tumor heterogeneity into dynamic models of fewer actionable sub-phenotypes. The identification of the driver nodes that are used differentially by CSC states to metabolically regulate self-renewal and tumor initation and escape chemotherapy might open new preventive and therapeutic avenues. The mapping of CSC metabolomic states could become a pioneering strategy to reduce the dimensionality of tumor heterogeneity and improve our ability to examine changes in tumor cell populations for cancer detection, prognosis, prediction/monitoring of therapy response, and detection of therapy resistance and recurrent disease. The identification of driver metabolites and metabolic nodes accounting for a large amount of variance within the CSC metabolomic sub-phenotypes might offer new unforeseen opportunities for reducing and exploiting tumor heterogeneity via metabolic targeting of CSC.
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Affiliation(s)
- Elisabet Cuyàs
- Metabolism and Cancer Group, Program Against Cancer Therapeutic Resistance, Catalan Institute of Oncology, Girona, Spain.,Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Sara Verdura
- Metabolism and Cancer Group, Program Against Cancer Therapeutic Resistance, Catalan Institute of Oncology, Girona, Spain.,Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Salvador Fernández-Arroyo
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Catalonia, Spain.,Campus of International Excellence Southern Catalonia, Tarragona, Catalonia, Spain
| | | | | | - Jorge Joven
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Catalonia, Spain.,Campus of International Excellence Southern Catalonia, Tarragona, Catalonia, Spain
| | - Javier A Menendez
- Metabolism and Cancer Group, Program Against Cancer Therapeutic Resistance, Catalan Institute of Oncology, Girona, Spain.,Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
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27
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Sato-Dahlman M, Miura Y, Huang JL, Hajeri P, Jacobsen K, Davydova J, Yamamoto M. CD133-targeted oncolytic adenovirus demonstrates anti-tumor effect in colorectal cancer. Oncotarget 2017. [PMID: 29100290 DOI: 10.18632/oncotarget.18340.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Oncolytic Adenoviruses (OAds) are one of the most promising anti-cancer agents that can induce cancer specific cell death. Recently, we generated infectivity-selective OAd, and the resultant OAd tumor-specific binding shows strong efficacy and mitigates toxicity. In this study, we applied this strategy based on adenovirus library screening system for generation of CD133-targeted OAd, and examined their oncolytic activity against colorectal cancer (CRC) in vitro and in vivo. CD133 (Prominin-1) is an important cell surface marker of cancer stem (like) cells (CSCs) in various cancers, including CRC. Elimination of CSCs has a high likelihood to improve CRC treatment because CSCs population in the tumor contributes to recurrence, metastases, chemotherapy resistance, and poor survival. The OAd with CD133-targeting motif (AdML-TYML) selectively infected CD133+ cultured cells and lysed them efficiently. Treatment with AdML-TYML prior to tumor inoculation inhibited the establishment of tumor of CD133+ CRC cell lines in nude mice. AdML-TYML also showed strong antitumor effect after intratumoral injections in already established CD133+ CRC subcutaneous xenografts. Our results indicate that CD133-targeted OAd selectively infected CD133+ CRC, and exhibited anti-tumorigenicity and therapeutic effect in established tumors. This novel infectivity selective virus could be a potent tool for the prevention of metastases and relapses in CRC.
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Affiliation(s)
| | - Yoshiaki Miura
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jing Li Huang
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Kari Jacobsen
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Julia Davydova
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Masato Yamamoto
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, USA
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28
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Sato-Dahlman M, Miura Y, Huang JL, Hajeri P, Jacobsen K, Davydova J, Yamamoto M. CD133-targeted oncolytic adenovirus demonstrates anti-tumor effect in colorectal cancer. Oncotarget 2017; 8:76044-76056. [PMID: 29100290 PMCID: PMC5652684 DOI: 10.18632/oncotarget.18340] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 04/19/2017] [Indexed: 12/19/2022] Open
Abstract
Oncolytic Adenoviruses (OAds) are one of the most promising anti-cancer agents that can induce cancer specific cell death. Recently, we generated infectivity-selective OAd, and the resultant OAd tumor-specific binding shows strong efficacy and mitigates toxicity. In this study, we applied this strategy based on adenovirus library screening system for generation of CD133-targeted OAd, and examined their oncolytic activity against colorectal cancer (CRC) in vitro and in vivo. CD133 (Prominin-1) is an important cell surface marker of cancer stem (like) cells (CSCs) in various cancers, including CRC. Elimination of CSCs has a high likelihood to improve CRC treatment because CSCs population in the tumor contributes to recurrence, metastases, chemotherapy resistance, and poor survival. The OAd with CD133-targeting motif (AdML-TYML) selectively infected CD133+ cultured cells and lysed them efficiently. Treatment with AdML-TYML prior to tumor inoculation inhibited the establishment of tumor of CD133+ CRC cell lines in nude mice. AdML-TYML also showed strong antitumor effect after intratumoral injections in already established CD133+ CRC subcutaneous xenografts. Our results indicate that CD133-targeted OAd selectively infected CD133+ CRC, and exhibited anti-tumorigenicity and therapeutic effect in established tumors. This novel infectivity selective virus could be a potent tool for the prevention of metastases and relapses in CRC.
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Affiliation(s)
| | - Yoshiaki Miura
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jing Li Huang
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Kari Jacobsen
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Julia Davydova
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Masato Yamamoto
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
- Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, USA
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29
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Yan N, Xu L, Wu X, Zhang L, Fei X, Cao Y, Zhang F. GSKJ4, an H3K27me3 demethylase inhibitor, effectively suppresses the breast cancer stem cells. Exp Cell Res 2017; 359:405-414. [PMID: 28823831 DOI: 10.1016/j.yexcr.2017.08.024] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 12/13/2022]
Abstract
Recently, studies have been suggested that H3K27me3 is implicated with maintenance of cancer stem cells (CSCs), however, the roles of H3K27me3 in Breast cancer stem cells (BCSCs) remain poorly investigated. Here we explore the functionallities of H3K27me3 on BCSCs, we identify H3K27me3 as a negative modulator of BCSCs and suggest GSKJ4 is a promising drug targeting BCSCs. We show that the H3K27me3 level is decreased in mammosphere-derived BCSCs. In breast cancer cells, we demonstrate that GSKJ4 could markedly inhibit the proliferation. Strikingly, we show that GSKJ4 could effectively suppress BCSCs including expansion, self-renewal capacity, and the expression of stemness-related markers. Additionally, our xenograft model confirms that GSKJ4 is able to effectively inhibit the tumorigenicity of MDA-MB-231. Mechanistically, the inhibition effects of GSKJ4 on BCSCs are via inhibiting demethylases JMJD3 and UTX with methyltransferase EZH2 unchanged, which enhances H3K27me3 level. H3K27me3 activating leads to reduction of BCSCs expansion, self-renewal and global level of stemness factors. Collectively, our results provide strong supports that H3K27me3 exerts a suppressive influence on BCSCs and reveal that GSKJ4 is capable to be a prospective agent targeting BCSCs.
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Affiliation(s)
- Ningning Yan
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; Department of Oncology, Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine, Suzhou 215021, China
| | - Liang Xu
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; Prevention and Cure Center of Breast Disease, Third Hospital of Nanchang, Nanchang 33009, China
| | - Xiaobo Wu
- Prevention and Cure Center of Breast Disease, Third Hospital of Nanchang, Nanchang 33009, China
| | - Le Zhang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; Department of Oncology, Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine, Suzhou 215021, China
| | - Xiaochun Fei
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Yali Cao
- Prevention and Cure Center of Breast Disease, Third Hospital of Nanchang, Nanchang 33009, China.
| | - Fengchun Zhang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China; Department of Oncology, Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine, Suzhou 215021, China.
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30
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Roles of Wnt Target Genes in the Journey of Cancer Stem Cells. Int J Mol Sci 2017; 18:ijms18081604. [PMID: 28757546 PMCID: PMC5577996 DOI: 10.3390/ijms18081604] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 07/19/2017] [Accepted: 07/20/2017] [Indexed: 12/12/2022] Open
Abstract
The importance of Wnt/β-catenin signaling in cancer stem cells (CSCs) has been acknowledged; however, the mechanism through which it regulates the biological function of CSCs and promotes cancer progression remains elusive. Hence, to understand the intricate mechanism by which Wnt controls stemness, the specific downstream target genes of Wnt were established by analyzing the genetic signatures of multiple types of metastatic cancers based on gene set enrichment. By focusing on the molecular function of Wnt target genes, the biological roles of Wnt were interpreted in terms of CSC dynamics from initiation to metastasis. Wnt signaling participates in cancer initiation by generating CSCs from normal stem cells or non-CSCs and augmenting persistent growth at the primary region, which is resistant to anti-cancer therapy. Moreover, it assists CSCs in invading nearby tissues and in entering the blood stream, during which the negative feedback of the Wnt signaling pathway maintains CSCs in a dormant state that is suitable for survival. When CSCs arrive at distant organs, another burst of Wnt signaling induces CSCs to succeed in re-initiation and colonization. This comprehensive understanding of Wnt target genes provides a plausible explanation for how Wnt allows CSCs variation during cancer progression.
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31
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Gruber W, Scheidt T, Aberger F, Huber CG. Understanding cell signaling in cancer stem cells for targeted therapy - can phosphoproteomics help to reveal the secrets? Cell Commun Signal 2017; 15:12. [PMID: 28356110 PMCID: PMC5372284 DOI: 10.1186/s12964-017-0166-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 03/13/2017] [Indexed: 12/11/2022] Open
Abstract
Background Cancer represents heterogeneous and aberrantly proliferative manifestations composed of (epi)genetically and phenotypically distinct cells with a common clonal origin. Cancer stem cells (CSC) make up a rare subpopulation with the remarkable capacity to initiate, propagate and spread a malignant disease. Furthermore, CSC show increased therapy resistance, thereby contributing to disease relapse. Elimination of CSC, therefore, is a crucial aim to design efficacious treatments for long-term survival of cancer patients. In this article, we highlight the nature of CSC and propose that phosphoproteomics based on unbiased high-performance liquid chromatography-mass spectrometry provides a powerful tool to decipher the molecular CSC programs. Detailed knowledge about the regulation of signaling processes in CSC is a prerequisite for the development of patient-tailored multi-modal treatments including the elimination of rare CSC. Main body Phosphorylation is a crucial post-translational modification regulating a plethora of both intra- and intercellular communication processes in normal and malignant cells. Small-molecule targeting of kinases has proven successful in the therapy, but the high rates of relapse and failure to stem malignant spread suggest that these kinase inhibitors largely spare CSC. Studying the kinetics of global phosphorylation patterns in an unbiased manner is, therefore, required to improve strategies and successful treatments within multi-modal therapeutic regimens by targeting the malignant behavior of CSC. The phosphoproteome comprises all phosphoproteins within a cell population that can be analyzed by phosphoproteomics, allowing the investigation of thousands of phosphorylation events. One major aspect is the perception of events underlying the activation and deactivation of kinases and phosphatases in oncogenic signaling pathways. Thus, not only can this tool be harnessed to better understand cellular processes such as those controlling CSC, but also applied to identify novel drug targets for targeted anti-CSC therapy. Conclusion State-of-the-art phosphoproteomics approaches focusing on single cell analysis have the potential to better understand oncogenic signaling in heterogeneous cell populations including rare, yet highly malignant CSC. By eliminating the influence of heterogeneity of populations, single-cell studies will reveal novel insights also into the inter- and intratumoral communication processes controlling malignant CSC and disease progression, laying the basis for improved rational combination treatments.
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Affiliation(s)
- Wolfgang Gruber
- Department of Molecular Biology, Cancer Cluster Salzburg, Paris-Lodron University of Salzburg, Hellbrunner Strasse 34, 5020, Salzburg, Austria
| | - Tamara Scheidt
- Department of Molecular Biology, Cancer Cluster Salzburg, Paris-Lodron University of Salzburg, Hellbrunner Strasse 34, 5020, Salzburg, Austria
| | - Fritz Aberger
- Department of Molecular Biology, Cancer Cluster Salzburg, Paris-Lodron University of Salzburg, Hellbrunner Strasse 34, 5020, Salzburg, Austria.
| | - Christian G Huber
- Department of Molecular Biology, Cancer Cluster Salzburg, Paris-Lodron University of Salzburg, Hellbrunner Strasse 34, 5020, Salzburg, Austria.
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32
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Hong W, Shi H, Qiao M, Gao X, Yang J, Tian C, Zhang D, Niu S, Liu M. Rational design of multifunctional micelles against doxorubicin-sensitive and doxorubicin-resistant MCF-7 human breast cancer cells. Int J Nanomedicine 2017; 12:989-1007. [PMID: 28243082 PMCID: PMC5315207 DOI: 10.2147/ijn.s127417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Even though a tremendous number of multifunctional nanocarriers have been developed to tackle heterogeneous cancer cells, little attention has been paid to elucidate how to rationally design a multifunctional nanocarrier. In this study, three individual functions (active targeting, stimuli-triggered release and endo-lysosomal escape) were evaluated in doxorubicin (DOX)-sensitive MCF-7 cells and DOX-resistant MCF-7/ADR cells by constructing four kinds of micelles with active-targeting (AT-M), passive targeting, pH-triggered release (pHT-M) and endo-lysosomal escape (endoE-M) function, respectively. AT-M demonstrated the strongest cytotoxicity against MCF-7 cells and the highest cellular uptake of DOX due to the folate-mediated endocytosis. However, AT-M failed to exhibit the best efficacy against MCF-7/ADR cells, while endoE-M exhibited the strongest cytotoxicity against MCF-7/ADR cells and the highest cellular uptake of DOX due to the lowest elimination of DOX from the cells. This was attributed to the carrier-facilitated endo-lysosomal escape of DOX, which avoided exocytosis by lysosome secretion, resulting in an effective accumulation of DOX in the cytoplasm. The enhanced elimination of DOX from the MCF-7/ADR cells also accounted for the remarkable decrease in cytotoxicity against the cells of AT-M. Three micelles were further evaluated with MCF-7 cells and MCF-7/ADR-resistant cells xenografted mice model. In accordance with the in vitro results, AT-M and endoE-M demonstrated the strongest inhibition on the MCF-7 and MCF-7/ADR xenografted tumor, respectively. Active targeting and active targeting in combination with endo-lysosomal escape have been demonstrated to be the primary function for a nanocarrier against doxorubicin-sensitive and doxorubicin-resistant MCF-7 cells, respectively. These results indicate that the rational design of multifunctional nanocarriers for cancer therapy needs to consider the heterogeneous cancer cells and the primary function needs to be integrated to achieve effective payload delivery.
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Affiliation(s)
- Wei Hong
- Key Laboratory of Zoonosis of Liaoning, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenhe, Shenyang, Liaoning
| | - Hong Shi
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Jiangning, Nanjing
| | - Mingxi Qiao
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Xiang Gao
- Key Laboratory of Zoonosis of Liaoning, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenhe, Shenyang, Liaoning
| | - Jie Yang
- Key Laboratory of Zoonosis of Liaoning, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenhe, Shenyang, Liaoning
| | - Chunlian Tian
- Key Laboratory of Zoonosis of Liaoning, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenhe, Shenyang, Liaoning
| | - Dexian Zhang
- Key Laboratory of Zoonosis of Liaoning, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenhe, Shenyang, Liaoning
| | - Shengli Niu
- Key Laboratory of Zoonosis of Liaoning, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenhe, Shenyang, Liaoning
| | - Mingchun Liu
- Key Laboratory of Zoonosis of Liaoning, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenhe, Shenyang, Liaoning
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33
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Scherag FD, Niestroj-Pahl R, Krusekopf S, Lücke K, Brandstetter T, Rühe J. Highly Selective Capture Surfaces on Medical Wires for Fishing Tumor Cells in Whole Blood. Anal Chem 2017; 89:1846-1854. [PMID: 28208267 DOI: 10.1021/acs.analchem.6b04219] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The detection of circulating tumor cells (CTCs) in the blood of cancer patients is a challenging task. CTCs are, especially at the early stages of cancer development, extremely rare cells hidden in a vast background of regular blood cells. We describe a new strategy for the isolation of CTCs from whole blood. The key component is a medical wire coated with a multilayer assembly that allows highly specific capture of EpCAM (epithelial cell adhesion molecule) positive CTCs from blood. The assembly is generated in a layer-by-layer fashion through photochemically induced C,H insertion reactions and consists of a protective layer, which shields the contacting solution from the metal, a protein resistant layer, which prevents nonspecific interactions with proteins and a layer containing the EpCAM antibodies. In vitro experiments show that these surfaces can capture tumor cells from whole blood with enrichment factors (specifically vs nonspecifically bound cells) of up to about 3000 compared to the number of leucocytes in the blood. The purity of the isolated cells is greater than 90%. After "fishing" them from the blood, the cells, still bound to the wire, can be genetically analyzed. This demonstrates that this strategy might prove useful for next generation sequencing.
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Affiliation(s)
- Frank D Scherag
- Department of Microsystems Engineering, University of Freiburg , Georges-Köhler-Allee 103, D-79110 Freiburg, Germany
| | | | | | - Klaus Lücke
- GILUPI GmbH , Hermannswerder 20a, 14473 Potsdam, Germany
| | - Thomas Brandstetter
- Department of Microsystems Engineering, University of Freiburg , Georges-Köhler-Allee 103, D-79110 Freiburg, Germany
| | - Jürgen Rühe
- Department of Microsystems Engineering, University of Freiburg , Georges-Köhler-Allee 103, D-79110 Freiburg, Germany
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34
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An active IGF-1R-AKT signaling imparts functional heterogeneity in ovarian CSC population. Sci Rep 2016; 6:36612. [PMID: 27819360 PMCID: PMC5098199 DOI: 10.1038/srep36612] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 10/17/2016] [Indexed: 02/06/2023] Open
Abstract
Deregulated IGF-1R-AKT signaling influences multiple nodes of cancer cell physiology and assists in migration, metastasis and acquirement of radio/chemoresistance. Enrichment of cancer stem cells (CSC) positively correlates with radio/chemoresistance development in various malignancies. It is unclear though, how IGF-1R-AKT signalling shapes CSC functionality especially in ovarian cancer. Previously we showed that upregulated IGF-1R expression is essential to initiate platinum-taxol resistance at early stage which declines with elevated levels of activated AKT at late resistant stage in ovarian cancer cells. Here, we investigated the effect of this oscillatory IGF-1R-AKT signalling upon CSC functionality during generation of chemoresistance. While gradual increase in CSC properties from early (ER) to late (LR) resistant stages was observed in three different (cisplatin/paclitaxel/cisplatin-paclitaxel) cellular models created in two ovarian cancer cell lines, the stemness gene expressions (oct4/sox2/nanog) reached a plateau at early resistant stages. Inhibition of IGF-1R only at ER and AKT inhibition only at LR stages significantly abrogated the CSC phenotype. Interestingly, real time bioluminescence imaging showed CSCs of ER stages possessed faster tumorigenic potential than CSCs belonging to LR stages. Together, our data suggest that IGF-1R-AKT signalling imparts functional heterogeneity in CSCs during acquirement of chemoresistance in ovarian carcinoma.
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35
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Huang GH, Xu QF, Cui YH, Li N, Bian XW, Lv SQ. Medulloblastoma stem cells: Promising targets in medulloblastoma therapy. Cancer Sci 2016; 107:583-9. [PMID: 27171351 PMCID: PMC4970825 DOI: 10.1111/cas.12925] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 03/02/2016] [Accepted: 03/04/2016] [Indexed: 12/15/2022] Open
Abstract
Medulloblastoma (MB) is the most common malignant pediatric brain tumor. Despite great improvements in the therapeutic regimen, relapse and leptomeningeal dissemination still pose great challenges to the long‐term survival of MB patients. Developing more effective strategies has become extremely urgent. In recent years, a number of malignancies, including MB, have been found to contain a subpopulation of cancer cells known as cancer stem cells (CSCs), or tumor initiating/propagating cells. The CSCs are thought to be largely responsible for tumor initiation, maintenance, dissemination, and relapse; therefore, their pivotal roles have revealed them to be promising targets in MB therapy. Our growing understanding of the major medulloblastoma molecular subgroups and the derivation of some of these groups from specific stem or progenitor cells adds additional layers to the CSC knowledge base. Herein we review the current knowledge of MB stem cells, highlight the molecular mechanisms relating to MB relapse and leptomeningeal dissemination, and incorporate these with the need to develop more effective and accurate therapies for MB patients.
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Affiliation(s)
- Guo-Hao Huang
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Qing-Fu Xu
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - You-Hong Cui
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Ningning Li
- Division of Neuropathology and Department of Neurodegenerative Disease, Institute of Neurology, University College London, London, UK
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing, China
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36
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Wu G, Wilson G, George J, Liddle C, Hebbard L, Qiao L. Overcoming treatment resistance in cancer: Current understanding and tactics. Cancer Lett 2016; 387:69-76. [PMID: 27089987 DOI: 10.1016/j.canlet.2016.04.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/10/2016] [Accepted: 04/11/2016] [Indexed: 02/06/2023]
Abstract
Chemotherapy is the standard treatment for many, if not all, metastatic cancers. While chemotherapy is often capable of inducing cell death in tumors leading to shrinkage of the tumor bulk, many patients suffer from recurrence and ultimately death due to resistance. During the last decade, treatment resistance has attracted great attention followed by some seminal discoveries, including sequential mutations, cancer stem cells, and bidirectional inter-conversion of stem and non-stem cancer cell populations. Nevertheless, the successful treatment of cancer will require a considerable refinement of our knowledge concerning treatment resistance. In doing so, we expect that a more informed and refined approach to treat cancer will be developed and this may improve prognosis of cancer patients. In this review, we will discuss the current knowledge concerning the failure of cancer treatments and the potential approaches to overcome therapeutic resistance.
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Affiliation(s)
- Guang Wu
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia
| | - George Wilson
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia
| | - Jacob George
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia
| | - Christopher Liddle
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia
| | - Lionel Hebbard
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia; Department of Molecular and Cell Biology, James Cook University, Townsville, QLD, Australia.
| | - Liang Qiao
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney, Westmead, NSW 2145, Australia.
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37
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Xu L, Zhang L, Hu C, Liang S, Fei X, Yan N, Zhang Y, Zhang F. WNT pathway inhibitor pyrvinium pamoate inhibits the self-renewal and metastasis of breast cancer stem cells. Int J Oncol 2016; 48:1175-86. [PMID: 26781188 DOI: 10.3892/ijo.2016.3337] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 12/17/2015] [Indexed: 11/06/2022] Open
Abstract
Acquisition of chemoresistance and metastatic phenotype are the major causes of breast cancer treatment failure and cancer-related mortality. Recently, a plethora of experimental and clinical studies points toward a central role of cancer stem cells (CSCs) in the chemoresistance and metastasis. In the present study, we demonstrated that pyrvinium pamoate (PP), an anthelmintic drug, inhibited proliferation of different subtypes of breast cancer cells (luminal: MCF-7, claudin-low: MDA-MB‑231, basal-like: MDA-MB‑468 and Her-2 enriched: SkBr-3) as a novel WNT pathway inhibitor. Additionally, PP was also shown to inhibit self-renewal of breast cancer stem cells (BCSCs) and decrease both CD44+CD24-/low and ALDH-positive BCSCs content in a panel of breast cancer cell lines. Besides, the metastatic potential and expression of EMT markers (such as N-cadherin, vimentin, Snail) were also found suppressed by PP. By using a xenograft model, we next tested the efficacy of PP on tumorigenicity of MDA-MB‑231, one of the most aggressive breast cancer cell lines, and we observed PP significantly delayed tumor growth in vivo. Moreover, in-depth analysis revealed that PP caused inhibition of WNT pathway activity and stemness regulator expression including NANOG, SOX2 and OCT4, which were inherently upregulated in the BCSCs as compared with the bulk of cells within the tumor. Collectively, our findings provide direct evidence for PP serving as a promising high-yield agent targeting BCSCs and cancer heterogeneity. Therefore, strategies combining PP with standard chemotherapy drugs which fail to eliminate the BCSCs hold promise to overcome BCSCs associated treatment resistance and achieve a better therapeutic outcome.
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Affiliation(s)
- Liang Xu
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Le Zhang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Chun Hu
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Shujing Liang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Xiaochun Fei
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Ningning Yan
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Yanyun Zhang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & SJTUSM, Shanghai 200031, P.R. China
| | - Fengchun Zhang
- Department of Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
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Skowron MA, Niegisch G, Fritz G, Arent T, van Roermund JGH, Romano A, Albers P, Schulz WA, Hoffmann MJ. Phenotype plasticity rather than repopulation from CD90/CK14+ cancer stem cells leads to cisplatin resistance of urothelial carcinoma cell lines. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2015; 34:144. [PMID: 26606927 PMCID: PMC4660687 DOI: 10.1186/s13046-015-0259-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 11/14/2015] [Indexed: 02/12/2023]
Abstract
BACKGROUND Tumour heterogeneity and resistance to systemic treatment in urothelial carcinoma (UC) may arise from cancer stem cells (CSC). A recent model describes cellular differentiation states within UC based on corresponding expression of surface markers (CD) and cytokeratins (CK) with CD90 and CK14 positive cells representing the least differentiated and most tumourigenic population. Based on the fact that this population is postulated to constitute CSCs and the origin of cisplatin resistance, we enriched urothelial carcinoma cell lines (UCCs) for CD90 and studied the tumour-initiating potential of these separated cells in vitro. METHODS Magnetic- and fluorescence-activated- cell sorting were used for separation of CD90(+) and CD90(-) UCCs. Distribution of cell surface markers CD90, CD44, and CD49f and cytokeratins CK14, CK5, and CK20 as well as the effects of short- and long-term treatment with cisplatin were assessed in vitro and measured by qRT-PCR, immunocytochemistry, reporter assay and flow cytometry in 11 UCCs. RESULTS We observed cell populations with surface markers according to those reported in tumour xenografts. However, expression of cytokeratins did not concord regularly with that of the surface markers. In particular, expression of CD90 and CK14 diverged during enrichment of CD90(+) cells by immunomagnetic sorting or following cisplatin treatment. Enriched CD90(+) cells did not exhibit CSC-like characteristics like enhanced clonogenicity and cisplatin resistance. Moreover, selection of cisplatin-resistant sublines by long-term drug treatment did not result in enrichment of CD90(+) cells. Rather, these sublines displayed significant phenotypic plasticity expressing EMT markers, an altered pattern of CKs, and WNT-pathway target genes. CONCLUSIONS Our findings indicate that the correspondence between CD surface markers and cytokeratins reported in xenografts is not maintained in commonly used UCCs and that CD90 may not be a stable marker of CSC in UC. Moreover, UCCs cells are capable of substantial phenotypic plasticity that may significantly contribute to the emergence of cisplatin resistance.
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Affiliation(s)
- Margaretha A Skowron
- Department of Urology, Medical Faculty, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Düsseldorf, Germany.
| | - Günter Niegisch
- Department of Urology, Medical Faculty, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Düsseldorf, Germany.
| | - Gerhard Fritz
- Institute of Toxicology, Medical Faculty, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Düsseldorf, Germany.
| | - Tanja Arent
- Department of Forensic Medicine, Medical Faculty, Heinrich-Heine-University Duesseldorf, Moorenstr. 5, 40225, Düsseldorf, Germany.
| | - Joep G H van Roermund
- Department of Urology, Maastricht University Medical Centre, P. Debyelaan 25, 6202, AZ, Maastricht, The Netherlands.
| | - Andrea Romano
- Department of Obstetrics and Gynaecology, GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, P. Debyelaan 25, 6202, AZ, Maastricht, The Netherlands.
| | - Peter Albers
- Department of Urology, Medical Faculty, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Düsseldorf, Germany.
| | - Wolfgang A Schulz
- Department of Urology, Medical Faculty, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Düsseldorf, Germany.
| | - Michèle J Hoffmann
- Department of Urology, Medical Faculty, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Düsseldorf, Germany.
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Martínez-Revollar G, Garay E, Martin-Tapia D, Nava P, Huerta M, Lopez-Bayghen E, Meraz-Cruz N, Segovia J, González-Mariscal L. Heterogeneity between triple negative breast cancer cells due to differential activation of Wnt and PI3K/AKT pathways. Exp Cell Res 2015; 339:67-80. [DOI: 10.1016/j.yexcr.2015.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/02/2015] [Accepted: 10/06/2015] [Indexed: 12/14/2022]
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