1
|
Gao J, Yang T, Wang X, Zhang Y, Wang J, Zhang B, Tang D, Liu Y, Gao T, Lin Q, Tang J, Cai J. Identification and characterization of a subpopulation of CD133 + cancer stem-like cells derived from SK-UT-1 cells. Cancer Cell Int 2021; 21:157. [PMID: 33685462 PMCID: PMC7938532 DOI: 10.1186/s12935-021-01817-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/12/2020] [Accepted: 02/06/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Uterine leiomyosarcoma (ULMS) is a malignant tumor found in the smooth muscle lining the walls of the uterus. Cancer stem cells (CSCs) are responsible for metastasis, drug resistance, and relapse of cancer, resulting in treatment failure. However, little is known about CSCs and their associated-markers in ULMS. We aimed to characterize and identify a subpopulation of CD133+ cancer stem-like cells derived from SK-UT-1 cell line. METHODS SK-UT-1 cells were sphere-forming cultured in vitro. We also sorted the CD133+ cells derived from SK-UT-1 cell line by immunomagnetic beads. CD133+ subpopulation and apoptotic cells were detected by flow cytometry. Self-renewal and anchorage-independent growth capabilities were examined using sphere and colony formation assays. The tumorigenicity of the fourth-passage spheres and parental SK-UT-1 cells was used by mouse xenograft model in vivo. Cell proliferation ability and sensitivity to doxorubicin (DXR) were assessed by CCK-8 assay. Cell migration and invasion were tested by wound healing assay or Transwell migration and invasion assays. Expressions of CSC-related marker were analyzed by Western blotting. RESULTS The fourth-passage spheres were defined as a CD133+ cell population, which was accompanied by increase of sphere and colony forming rate, migration and invasion abilities, as well as drug-resistant properties in vitro. Moreover, the fourth-passage spheres showed a stronger tumorigenic potential in vivo. CD133+ cell population sorted from SK-UT-1 line showed an increased ability in sphere and colony formation, proliferation, migration, invasion, resistance to apoptosis after treatment with doxorubicin (DXR) compared with CD133- cell population. The expression levels of CSCs-related markers (e.g., CD44, ALDH1,BMI1, and Nanog), were significantly elevated in CD133+ cells compared with those in CD133- cells. CONCLUSIONS Collectively, our findings indicated that CD133 may be a significant marker for cancer stem-like cells, and it may be a potential therapeutic target for human ULMS.
Collapse
Affiliation(s)
- Jiuping Gao
- Department of Gynecological Oncology, The Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, China
| | - Ting Yang
- Department of Gynecological Oncology, The Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, China
| | - Xu Wang
- Department of Gynecology and Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Yi Zhang
- Department of Gynecology and Obstetrics, Xiangya Hospital Central South University, Changsha, China
| | - Jing Wang
- Department of Gynecological Oncology, The Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, China
| | - Beilei Zhang
- Department of Gynecology and obstetrics, The second people's Hospital of Hunan Province, Changsha, China
| | - Dihong Tang
- Department of Gynecological Oncology, The Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, China
| | - Yanqiong Liu
- Department of Gynecological Oncology, The Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, China
| | - Ting Gao
- Department of Gynecology and obstetrics, Central Hospital of Yiyang City, Yiyang, Hunan Province, China
| | - Qiuhui Lin
- Department of Gynecology and Obstetrics, The First People's Hospital of Shaoguang, Shaoguan, Guangdong Province, China
| | - Jun Tang
- Department of Gynecological Oncology, The Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, China
| | - Jingting Cai
- Department of Gynecological Oncology, The Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, China.
| |
Collapse
|
2
|
Jung Y, Kim JK, Lee E, Cackowski FC, Decker AM, Krebsbach PH, Taichman RS. CXCL12γ induces human prostate and mammary gland development. Prostate 2020; 80:1145-1156. [PMID: 32659025 PMCID: PMC7491592 DOI: 10.1002/pros.24043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/11/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Epithelial stem cells (ESCs) demonstrate a capacity to maintain normal tissues homeostasis and ESCs with a deregulated behavior can contribute to cancer development. The ability to reprogram normal tissue epithelial cells into prostate or mammary stem-like cells holds great promise to help understand cell of origin and lineage plasticity in prostate and breast cancers in addition to understanding normal gland development. We previously showed that an intracellular chemokine, CXCL12γ induced cancer stem cells and neuroendocrine characteristics in both prostate and breast adenocarcinoma cell lines. However, its role in normal prostate or mammary epithelial cell fate and development remains unknown. Therefore, we sought to elucidate the functional role of CXCL12γ in the regulation of ESCs and tissue development. METHODS Prostate epithelial cells (PNT2) or mammary epithelial cells (MCF10A) with overexpressed CXCL12γ was characterized by quantitative real-time polymerase chain reaction, Western blots, and immunofluorescence for lineage marker expression, and fluorescence activated cell sorting analyses and sphere formation assays to examine stem cell surface phenotype and function. Xenotransplantation animal models were used to evaluate gland or acini formation in vivo. RESULTS Overexpression of CXCL12γ promotes the reprogramming of cells with a differentiated luminal phenotype to a nonluminal phenotype in both prostate (PNT2) and mammary (MCF10A) epithelial cells. The CXCL12γ-mediated nonluminal type cells results in an increase of epithelial stem-like phenotype including the subpopulation of EPCAMLo /CD49fHi /CD24Lo /CD44Hi cells capable of sphere formation. Critically, overexpression of CXCL12γ promotes the generation of robust gland-like structures from both prostate and mammary epithelial cells in in vivo xenograft animal models. CONCLUSIONS CXCL12γ supports the reprogramming of epithelial cells into nonluminal cell-derived stem cells, which facilitates gland development.
Collapse
Affiliation(s)
- Younghun Jung
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Co-senior authors
| | - Jin Koo Kim
- Section of Periodontics, University of California Los Angeles School of Dentistry, Los Angeles, CA 90095, USA
| | - Eunsohl Lee
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Frank C. Cackowski
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Department of Internal Medicine, Division of Hematology and Oncology, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, MI 48201, USA
| | - Ann M. Decker
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Paul H. Krebsbach
- Section of Periodontics, University of California Los Angeles School of Dentistry, Los Angeles, CA 90095, USA
| | - Russell S. Taichman
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Department of Periodontics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Co-senior authors
- Corresponding Author Russell S. Taichman D.M.D., D.M.Sc., School of Dentistry, The University of Alabama at Birmingham, 1720 2nd Avenue South, Birmingham, AL 35294-0007, Phone: 205-934-4720,
| |
Collapse
|
3
|
Park JW, Park JH, Han JW. Fermented Ginseng Extract, BST204, Suppresses Tumorigenesis and Migration of Embryonic Carcinoma through Inhibition of Cancer Stem Cell Properties. Molecules 2020; 25:molecules25143128. [PMID: 32650569 PMCID: PMC7397298 DOI: 10.3390/molecules25143128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/02/2020] [Accepted: 07/05/2020] [Indexed: 11/27/2022] Open
Abstract
The pharmacological effects of BST204—a fermented ginseng extract—on several types of cancers have been reported. However, the effects of ginseng products or single ginsenosides against cancer stem cells are still poorly understood. In this study, we identified the anti-tumorigenic and anti-invasive activities of BST204 through the suppression of the cancer stem cell marker, CD133. The treatment of embryonic carcinoma cells with BST204 induced the expression of the tumor suppressor protein, p53, which decreased the expression of cell cycle regulatory proteins and downregulated the expression of CD133 and several stemness transcription factors. These changes resulted in both the inhibition of tumor cell proliferation and tumorigenesis. The knockdown of CD133 suggests that it has a role in tumorigenesis, but not in cancer cell proliferation or cell cycle arrest. Treatment with BST204 resulted in the reduced expression of the mesenchymal marker, N-cadherin, and the increased expression of the epithelial marker, E-cadherin, leading to the suppression of tumor cell migration and invasion. The knockdown of CD133 also exhibited an anti-invasive effect, indicating the role of CD133 in tumor invasion. The single ginsenosides Rg3 and Rh2—major components of BST204—exhibited limited effects against cancer stem cells compared to BST204, suggesting possible synergism among several ginsenoside compounds.
Collapse
|
4
|
Ishiwata T, Matsuda Y, Yoshimura H, Sasaki N, Ishiwata S, Ishikawa N, Takubo K, Arai T, Aida J. Pancreatic cancer stem cells: features and detection methods. Pathol Oncol Res 2018; 24:797-805. [PMID: 29948612 DOI: 10.1007/s12253-018-0420-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Accepted: 05/17/2018] [Indexed: 02/06/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with a high incidence of distant metastasis and recurrence. Cancer stem cells (CSCs), which are pluripotent, self-renewable, and capable of forming tumors, contribute to PDAC initiation and metastasis and are responsible for resistance to chemotherapy and radiation. Three types of experimental methods are commonly used to identify CSCs: CSC-specific marker detection, a sphere-formation assay that reveals cell proliferation under non-adherent conditions, and detection of side-population (SP) cells that possess high intracellular-to-extracellular pump functions. Several CSC-specific markers have been reported in PDACs, including CD133, CD24, CD44, CXCR4, EpCAM, ABCG2, c-Met, ALDH-1, and nestin. There remains controversy regarding which markers are specific to PDAC CSCs and which are expressed alone or in combination in CSCs. Examining characteristics of isolated CSCs and discovering CSC-specific treatment options are important to improve the prognosis of PDAC cases. This review summarizes CSC-detection methods for PDAC, including CSC-marker detection, the sphere-formation assay, and detection of SP cells.
Collapse
Affiliation(s)
- Toshiyuki Ishiwata
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015, Japan.
| | - Yoko Matsuda
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, 173-0015, Japan
| | - Hisashi Yoshimura
- Department of Applied Science, School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, 180-0022, Japan
| | - Norihiko Sasaki
- Research Team for Geriatric Medicine (Vascular Medicine), Tokyo Metropolitan Institute of Gerontology, Tokyo, 173-0015, Japan
| | - Shunji Ishiwata
- Division of Medical Pharmaceutics & Therapeutics, Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Naoshi Ishikawa
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Kaiyo Takubo
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Tomio Arai
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, 173-0015, Japan
| | - Junko Aida
- Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015, Japan
| |
Collapse
|
5
|
Kanwal R, Shukla S, Walker E, Gupta S. Acquisition of tumorigenic potential and therapeutic resistance in CD133+ subpopulation of prostate cancer cells exhibiting stem-cell like characteristics. Cancer Lett 2018; 430:25-33. [PMID: 29775627 DOI: 10.1016/j.canlet.2018.05.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/08/2018] [Accepted: 05/10/2018] [Indexed: 12/12/2022]
Abstract
The role of CD133 (Prominin-1) as a cancer stem cell marker may be useful for therapeutic approaches and prognostication in prostate cancer patients. We investigated the stem-cell-related function and biological features of a subpopulation of CD133+ cells isolated from established primary human prostate cancer cell lines. The CD133+ cells sorted from human prostate cancer 22Rv1 exhibited high clonogenic and tumorigenic capabilities, sphere forming capacity and serially reinitiated transplantable tumors in NOD-SCID mice. Gene profiling analysis of CD133+ cells showed upregulation of markers of stem cell differentiation (CD44, Oct4, SOX9 and Nanog), epithelial-to-mesenchymal transition (c-myc and BMI1), osteoblastic differentiation (Runx2), and skeletal morphogenesis (BMP2), compared to side population of CD133- cells. These cells are highly malignant and resistant to γ-radiation and chemotherapeutic drug, docetaxel. Importantly, a docetaxel-resistant subclone was more enriched in CD133+ cells with significant increase in Runx2 expression, compared to CD133- cells. Furthermore, knockdown of Runx2 in these cells resulted in differential response to chemotherapy, sensitizing them to increased cell death. These results demonstrate therapy-resistant population with stem-like features are distinct subpopulation of malignant cells that resides within parental cell lines. The molecular signature of CD133+ cells may lead to identification of novel therapeutic targets and prognostic markers in the treatment of prostate cancer.
Collapse
Affiliation(s)
- Rajnee Kanwal
- Department of Urology, Case Western Reserve University, School of Medicine, Cleveland, OH, 44106, USA; The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, 44106, USA; Department of Urology, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, 44106, USA
| | - Sanjeev Shukla
- Department of Urology, Case Western Reserve University, School of Medicine, Cleveland, OH, 44106, USA; The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, 44106, USA
| | - Ethan Walker
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Sanjay Gupta
- Department of Urology, Case Western Reserve University, School of Medicine, Cleveland, OH, 44106, USA; The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, 44106, USA; Department of Urology, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, 44106, USA; Department of Nutrition, Case Western Reserve University, Cleveland, OH, 44106, USA; Division of General Medical Sciences, Case Comprehensive Cancer Center, Cleveland, OH, 44106, USA.
| |
Collapse
|
6
|
Abstract
Resistance to chemotherapy and cancer relapse are major clinical challenges attributed to a sub population of cancer stem cells (CSCs). The concept of CSCs has been the subject of intense research by the oncology community since evidence for their existence was first published over twenty years ago. Emerging data indicates that they are also able to evade novel therapies such as targeted agents, immunotherapies and anti-angiogenics. The inability to appropriately identify and isolate CSCs is a major hindrance to the field and novel technologies are now being utilized. Agents that target CSC-associated cell surface receptors and signaling pathways have generated promising pre-clinical results and are now entering clinical trial. Here we discuss and evaluate current therapeutic strategies to target CSCs.
Collapse
Affiliation(s)
- Stephanie Annett
- Molecular and Cellular Therapeutics, Royal College of Surgeons Ireland, Ireland
| | - Tracy Robson
- Molecular and Cellular Therapeutics, Royal College of Surgeons Ireland, Ireland.
| |
Collapse
|
7
|
Mokhtarzadeh A, Hassanpour S, Vahid ZF, Hejazi M, Hashemi M, Ranjbari J, Tabarzad M, Noorolyai S, de la Guardia M. Nano-delivery system targeting to cancer stem cell cluster of differentiation biomarkers. J Control Release 2017; 266:166-186. [PMID: 28941992 DOI: 10.1016/j.jconrel.2017.09.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 09/15/2017] [Accepted: 09/19/2017] [Indexed: 02/07/2023]
Abstract
Cancer stem cells (CSCs) are one of the most important origins of cancer progression and metastasis. CSCs have unique self-renewal properties and diverse cell membrane receptors that induced the resistance to the conventional chemotherapeutic agents. Therefore, the therapeutic removal of CSCs could result in the cancer cure with lack of recurrence and metastasis. In this regard, targeting CSCs in accordance to their specific biomarkers is a talented attitude in cancer therapy. Various CSCs surface biomarkers have been described, which some of them exhibited similarities on different cancer cell types, while the others are cancer specific and have just been reported on one or a few types of cancers. In this review, the importance of CSCs in cancer development and therapeutic response has been stated. Different CSCs cluster of differentiation (CD) biomarkers and their specific function and applications in the treatment of cancers have been discussed, Special attention has been made on targeted nano-delivery systems. In this regard, several examples have been illustrated concerning specific natural and artificial ligands against CSCs CD biomarkers that could be decorated on various nanoparticulated drug delivery systems to enhance therapeutic index of chemotherapeutic agents or anticancer gene therapy. The outlook of CSCs biomarkers discovery and therapeutic/diagnostic applications was discussed.
Collapse
Affiliation(s)
- Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biochemistry, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Soodabeh Hassanpour
- Department of Biochemistry, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | | | | | - Maryam Hashemi
- Nanotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Javad Ranjbari
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Tabarzad
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Saeed Noorolyai
- Department of Biochemistry, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain.
| |
Collapse
|
8
|
Prostate Cancer Stem Cell Markers Drive Progression, Therapeutic Resistance, and Bone Metastasis. Stem Cells Int 2017; 2017:8629234. [PMID: 28690641 PMCID: PMC5485361 DOI: 10.1155/2017/8629234] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 03/29/2017] [Accepted: 05/03/2017] [Indexed: 02/07/2023] Open
Abstract
Metastatic or recurrent tumors are the primary cause of cancer-related death. For prostate cancer, patients diagnosed with local disease have a 99% 5-year survival rate; however, this 5-year survival rate drops to 28% in patients with metastatic disease. This dramatic decline in survival has driven interest in discovering new markers able to identify tumors likely to recur and in developing new methods to prevent metastases from occurring. Biomarker discovery for aggressive tumor cells includes attempts to identify cancer stem cells (CSCs). CSCs are defined as tumor cells capable of self-renewal and regenerating the entire tumor heterogeneity. Thus, it is hypothesized that CSCs may drive primary tumor aggressiveness, metastatic colonization, and therapeutic relapse. The ability to identify these cells in the primary tumor or circulation would provide prognostic information capable of driving prostate cancer treatment decisions. Further, the ability to target these CSCs could prevent tumor metastasis and relapse after therapy allowing for prostate cancer to finally be cured. Here, we will review potential CSC markers and highlight evidence that describes how cells expressing each marker may drive prostate cancer progression, metastatic colonization and growth, tumor recurrence, and resistance to treatment.
Collapse
|
9
|
CD133, Selectively Targeting the Root of Cancer. Toxins (Basel) 2016; 8:toxins8060165. [PMID: 27240402 PMCID: PMC4926132 DOI: 10.3390/toxins8060165] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 05/08/2016] [Accepted: 05/10/2016] [Indexed: 12/20/2022] Open
Abstract
Cancer stem cells (CSC) are capable of promoting tumor initiation and self-renewal, two important hallmarks of carcinoma formation. This population comprises a small percentage of the tumor mass and is highly resistant to chemotherapy, causing the most difficult problem in the field of cancer research, drug refractory relapse. Many CSC markers have been reported. One of the most promising and perhaps least ubiquitous is CD133, a membrane-bound pentaspan glycoprotein that is frequently expressed on CSC. There is evidence that directly targeting CD133 with biological drugs might be the most effective way to eliminate CSC. We have investigated two entirely unrelated, but highly effective approaches for selectively targeting CD133. The first involves using a special anti-CD133 single chain variable fragment (scFv) to deliver a catalytic toxin. The second utilizes this same scFv to deliver components of the immune system. In this review, we discuss the development and current status of these CD133 associated biological agents. Together, they show exceptional promise by specific and efficient CSC elimination.
Collapse
|
10
|
Frame FM, Pellacani D, Collins AT, Maitland NJ. Harvesting Human Prostate Tissue Material and Culturing Primary Prostate Epithelial Cells. Methods Mol Biol 2016; 1443:181-201. [PMID: 27246341 DOI: 10.1007/978-1-4939-3724-0_12] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In order to fully explore the biology of a complex solid tumor such as prostate cancer, it is desirable to work with patient tissue. Only by working with cells from a tissue can we take into account patient variability and tumor heterogeneity. Cell lines have long been regarded as the workhorse of cancer research and it could be argued that they are of most use when considered within a panel of cell lines, thus taking into account specified mutations and variations in phenotype between different cell lines. However, often very different results are obtained when comparing cell lines to primary cells cultured from tissue. It stands to reason that cells cultured from patient tissue represents a close-to-patient model that should and does produce clinically relevant data. This chapter aims to illustrate the methods of processing, storing and culturing cells from prostate tissue, with a description of potential uses.
Collapse
Affiliation(s)
- Fiona M Frame
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, North Yorkshire, YO10 5DD, UK.
| | - Davide Pellacani
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, North Yorkshire, YO10 5DD, UK
| | - Anne T Collins
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, North Yorkshire, YO10 5DD, UK
| | - Norman J Maitland
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, North Yorkshire, YO10 5DD, UK.
| |
Collapse
|
11
|
Portillo-Lara R, Alvarez MM. Enrichment of the Cancer Stem Phenotype in Sphere Cultures of Prostate Cancer Cell Lines Occurs through Activation of Developmental Pathways Mediated by the Transcriptional Regulator ΔNp63α. PLoS One 2015; 10:e0130118. [PMID: 26110651 PMCID: PMC4481544 DOI: 10.1371/journal.pone.0130118] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 05/18/2015] [Indexed: 11/17/2022] Open
Abstract
Background Cancer stem cells (CSC) drive prostate cancer tumor survival and metastasis. Nevertheless, the development of specific therapies against CSCs is hindered by the scarcity of these cells in prostate tissues. Suspension culture systems have been reported to enrich CSCs in primary cultures and cell lines. However, the molecular mechanisms underlying this phenomenon have not been fully explored. Methodology/Principal Findings We describe a prostasphere assay for the enrichment of CD133+ CSCs in four commercial PCa cell lines: 22Rv1, DU145, LNCaP, and PC3. Overexpression of CD133, as determined by flow cytometric analysis, correlated with an increased clonogenic, chemoresistant, and invasive potential in vitro. This phenotype is concordant to that of CSCs in vivo. Gene expression profiling was then carried out using the Cancer Reference panel and the nCounter system from NanoString Technologies. This analysis revealed several upregulated transcripts that can be further explored as potential diagnostic markers or therapeutic targets. Furthermore, functional annotation analysis suggests that ΔNp63α modulates the activation of developmental pathways responsible for the increased stem identity of cells growing in suspension cultures. Conclusions/Significance We conclude that profiling the genetic mechanisms involved in CSC enrichment will help us to better understand the molecular pathways that underlie CSC pathophysiology. This platform can be readily adapted to enrich and assay actual patient samples, in order to design patient-specific therapies that are aimed particularly against CSCs.
Collapse
Affiliation(s)
- Roberto Portillo-Lara
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México
| | - Mario Moisés Alvarez
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, Nuevo León, México; Harvard-MIT Health Sciences and Technology, Brigham and Women's Hospital, Cambridge, Massachusetts, United States of America
| |
Collapse
|
12
|
Russo MT, Racioppi C, Zanetti L, Ristoratore F. Expression of a single prominin homolog in the embryo of the model chordate Ciona intestinalis. Gene Expr Patterns 2014; 15:38-45. [PMID: 24755348 DOI: 10.1016/j.gep.2014.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 04/07/2014] [Accepted: 04/10/2014] [Indexed: 12/21/2022]
Abstract
Prominins are a family of pentaspan transmembrane glycoproteins, expressed in various types of cells, including stem and cancer stem cells in mammals. Prominin-1 is critical in generating and maintaining the structure of the photoreceptors in the eye since mutations in the PROM1 gene are associated with retinal and macular degeneration in human. In this study, we identified a single prominin homolog, Ci-prom1/2, in the model chordate the ascidian Ciona intestinalis and characterized Ci-prom1/2 expression profile in relation to photoreceptor differentiation during Ciona embryonic development. In situ hybridization experiments show Ci-prom1/2 transcripts localized in the developing central nervous system, predominantly in photoreceptor cell precursors as early as neurula stage and expression is maintained through larva stage in photoreceptor cells around the simple eye. We also isolated the regulatory region responsible for the specific spatio-temporal expression of the Ci-prom1/2 in photoreceptor cell lineage. Collectively, we report that Ci-prom1/2 is a novel molecular marker for ascidian photoreceptor cells and might represent a potential source to enlarge the knowledge about the function of prominin family in photoreceptor cell evolution and development.
Collapse
Affiliation(s)
- Monia T Russo
- Cellular and Developmental Biology Laboratory, Stazione Zoologica Anton Dorhn, Villa Comunale, 80121 Napoli, Italy
| | - Claudia Racioppi
- Cellular and Developmental Biology Laboratory, Stazione Zoologica Anton Dorhn, Villa Comunale, 80121 Napoli, Italy
| | - Laura Zanetti
- Cellular and Developmental Biology Laboratory, Stazione Zoologica Anton Dorhn, Villa Comunale, 80121 Napoli, Italy
| | - Filomena Ristoratore
- Cellular and Developmental Biology Laboratory, Stazione Zoologica Anton Dorhn, Villa Comunale, 80121 Napoli, Italy.
| |
Collapse
|
13
|
Rane J, Droop A, Pellacani D, Polson E, Simms M, Collins A, Caves L, Maitland N. Conserved two-step regulatory mechanism of human epithelial differentiation. Stem Cell Reports 2014; 2:180-8. [PMID: 24527392 PMCID: PMC3923223 DOI: 10.1016/j.stemcr.2014.01.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 12/30/2013] [Accepted: 01/02/2014] [Indexed: 12/11/2022] Open
Abstract
Human epithelia are organized in a hierarchical structure, where stem cells generate terminally differentiated cells via intermediate progenitors. This two-step differentiation process is conserved in all tissues, but it is not known whether a common gene set contributes to its regulation. Here, we show that retinoic acid (RA) regulates early human prostate epithelial differentiation by activating a tightly coexpressed set of 80 genes (e.g., TMPRSS2). Response kinetics suggested that some of these genes could be direct RA targets, whereas others are probably responding indirectly to RA stimulation. Comparative bioinformatic analyses of published tissue-specific microarrays and a large-scale transcriptomic data set revealed that these 80 genes are not only RA responsive but also significantly coexpressed in many human cell systems. The same gene set preferentially responds to androgens during terminal prostate epithelial differentiation, implying a cell-type-dependent interplay between RA and tissue-specific transcription factor-mediated signaling in regulating the two steps of epithelial differentiation. Four sets of coexpressed genes mark primary human prostate stem cell differentiation These gene sets are also tightly coexpressed in >150 human cell types Retinoic acid induces early differentiation while upregulating one of the gene sets Androgens preferentially regulate the same gene set during terminal differentiation
Collapse
Affiliation(s)
- Jayant K. Rane
- YCR Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
| | - Alastair P. Droop
- YCR Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
- York Centre for Complex Systems Analysis and Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
| | - Davide Pellacani
- YCR Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
| | - Euan S. Polson
- YCR Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
| | - Matthew S. Simms
- Department of Urology, Castle Hill Hospital, Cottingham, Humberside HU16 5JQ, UK
- Hull York Medical School, University of Hull, Hull, Humberside HU6 7RX, UK
| | - Anne T. Collins
- YCR Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
| | - Leo S.D. Caves
- York Centre for Complex Systems Analysis and Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
| | - Norman J. Maitland
- YCR Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire YO10 5DD, UK
- Corresponding author
| |
Collapse
|
14
|
Prostate stem cells in the development of benign prostate hyperplasia and prostate cancer: emerging role and concepts. BIOMED RESEARCH INTERNATIONAL 2013; 2013:107954. [PMID: 23936768 PMCID: PMC3722776 DOI: 10.1155/2013/107954] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 06/14/2013] [Accepted: 06/14/2013] [Indexed: 12/21/2022]
Abstract
Benign Prostate hyperplasia (BPH) and prostate cancer (PCa) are the most common prostatic disorders affecting elderly men. Multiple factors including hormonal imbalance, disruption of cell proliferation, apoptosis, chronic inflammation, and aging are thought to be responsible for the pathophysiology of these diseases. Both BPH and PCa are considered to be arisen from aberrant proliferation of prostate stem cells. Recent studies on BPH and PCa have provided significant evidence for the origin of these diseases from stem cells that share characteristics with normal prostate stem cells. Aberrant changes in prostate stem cell regulatory factors may contribute to the development of BPH or PCa. Understanding these regulatory factors may provide insight into the mechanisms that convert quiescent adult prostate cells into proliferating compartments and lead to BPH or carcinoma. Ultimately, the knowledge of the unique prostate stem or stem-like cells in the pathogenesis and development of hyperplasia will facilitate the development of new therapeutic targets for BPH and PCa. In this review, we address recent progress towards understanding the putative role and complexities of stem cells in the development of BPH and PCa.
Collapse
|
15
|
The cancer stem cell hypothesis applied to oral carcinoma. Oral Oncol 2013; 49:738-46. [PMID: 23642758 DOI: 10.1016/j.oraloncology.2013.04.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 04/09/2013] [Accepted: 04/09/2013] [Indexed: 12/14/2022]
Abstract
It has been proposed that the development of tumors is based exclusively on the activity of cancer stem cells (CSCs) leading to a new model of carcinogenesis, the CSC hypothesis, in opposition to the conventional model of clonal evolution. The new model may help to explain the high mortality of oral cancer, unchanged over the past decades, the low response to treatment and the tendency of oral squamous cell carcinoma (OSCC) patients to develop multiple tumors. However, a more profound understanding of the molecular pathways involved in maintaining the stem cell (SC) state and of their alterations is required to elucidate the mechanisms underlying the development of tumors and metastatic spread, but research into SC biopathology is hampered by the lack of specific markers for identifying SCs and CSCs in tissues and for establishing topographic relationships with their lineage. We review current knowledge on stem cells in relation to oral cancer, including their possible origins, focusing on the CSC hypothesis of oral tumorigenesis and attempts being made to identify oral stem cells.
Collapse
|
16
|
Reyes EE, Kunovac SK, Duggan R, Kregel S, Vander Griend DJ. Growth kinetics of CD133-positive prostate cancer cells. Prostate 2013; 73:724-33. [PMID: 23138940 PMCID: PMC4161138 DOI: 10.1002/pros.22616] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 10/15/2012] [Indexed: 02/01/2023]
Abstract
BACKGROUND In the adult human prostate CD133 expression is thought to mark rare prostate epithelial stem cells and malignant tumor stem/initiating cells. Such putative stem cell populations are thought to proliferate slowly, but possess unlimited proliferative potential. Based on this, we hypothesized that CD133(pos) prostate cancer cells proliferate slower than CD133(neg) cells. METHODS Human prostate cancer cell lines were analyzed for CD133 expression and DNA content using flow cytometry. Rates of cell division and DNA synthesis were determined using CFSE cell tracing and BrdU uptake, respectively. Changes in cell cycle distribution and the percentage of CD133(pos) cells were assayed under conditions of different cell density and AR-pathway modulation. Lastly, we over-expressed lentiviral CD133 to measure whether CD133 regulates the cell cycle. RESULTS The cell cycle distribution differs between CD133(pos) and CD133(neg) cells in all three human prostate cancer cell lines studied. CD133(pos) cells have a greater proportion of cells in G2 and proliferate faster than CD133(neg) cells. High cell density increases the percentage of CD133(pos) cells without changing CD133(pos) cell cycle progression. Treatment with the AR agonist R1881, or the anti-androgen MDV3100, significantly changed the percentage and proliferation of CD133(pos) cells. Finally, ectopic over-expression of CD133 had no effect on cell cycle progression. CONCLUSIONS Contrary to our hypothesis, we demonstrate that CD133(pos) cells proliferate faster than CD133(neg) cells. This association of CD133 expression with increased cell proliferation is not directly mediated by CD133, suggesting that surface CD133 is a downstream target gene of an undefined pathway controlling cell proliferation.
Collapse
Affiliation(s)
- Edwin E. Reyes
- Committee on Immunology, The University of Chicago, Chicago, Illinois
| | - Stefan K. Kunovac
- American Cancer Society High School Summer Research Program, Chicago, Illinois
| | - Ryan Duggan
- Flow Cytometry Facility, The University of Chicago, Chicago, Illinois
| | - Steven Kregel
- Committee on Cancer Biology, The University of Chicago, Chicago, Illinois
| | - Donald J. Vander Griend
- Department of Surgery, The Section of Urology, The University of Chicago, Chicago, Illinois
- Correspondence to: Donald J. Vander Griend, PhD, The Section of Urology, Department of Surgery, The University of Chicago, 5841 S. Maryland Ave., MC6038, Chicago, IL 60637.,
| |
Collapse
|
17
|
Pellacani D, Oldridge EE, Collins AT, Maitland NJ. Prominin-1 (CD133) Expression in the Prostate and Prostate Cancer: A Marker for Quiescent Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2013; 777:167-84. [PMID: 23161082 DOI: 10.1007/978-1-4614-5894-4_11] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The origin and phenotype of stem cells in human prostate cancer remains a subject of much conjecture. In this scenario, CD133 has been successfully used as a stem cell marker in both normal prostate and prostate cancer. However, cancer stem cells have been identified without the use of this marker, opening up the possibility of a CD133 negative cancer stem cell. In this chapter, we review the current literature regarding prostate cancer stem cells, with specific reference to the expression of CD133 as a stem cell marker to identify and purify stem cells in normal prostate epithelium and prostate cancer.
Collapse
Affiliation(s)
- Davide Pellacani
- YCR Cancer Research Unit, Department of Biology, University of York, Wentworth Way, YO10 5DD, York, UK
| | | | | | | |
Collapse
|
18
|
|
19
|
Williamson SC, Hepburn AC, Wilson L, Coffey K, Ryan-Munden CA, Pal D, Leung HY, Robson CN, Heer R. Human α(2)β(1)(HI) CD133(+VE) epithelial prostate stem cells express low levels of active androgen receptor. PLoS One 2012; 7:e48944. [PMID: 23145034 PMCID: PMC3492135 DOI: 10.1371/journal.pone.0048944] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2012] [Accepted: 10/02/2012] [Indexed: 12/31/2022] Open
Abstract
Stem cells are thought to be the cell of origin in malignant transformation in many tissues, but their role in human prostate carcinogenesis continues to be debated. One of the conflicts with this model is that cancer stem cells have been described to lack androgen receptor (AR) expression, which is of established importance in prostate cancer initiation and progression. We re-examined the expression patterns of AR within adult prostate epithelial differentiation using an optimised sensitive and specific approach examining transcript, protein and AR regulated gene expression. Highly enriched populations were isolated consisting of stem (α2β1HI CD133+VE), transiently amplifying (α2β1HI CD133–VE) and terminally differentiated (α2β1LOW CD133–VE) cells. AR transcript and protein expression was confirmed in α2β1HI CD133+VE and CD133–VE progenitor cells. Flow cytometry confirmed that median (±SD) fraction of cells expressing AR were 77% (±6%) in α2β1HI CD133+VE stem cells and 68% (±12%) in α2β1HI CD133–VE transiently amplifying cells. However, 3-fold lower levels of total AR protein expression (peak and median immunofluorescence) were present in α2β1HI CD133+VE stem cells compared with differentiated cells. This finding was confirmed with dual immunostaining of prostate sections for AR and CD133, which again demonstrated low levels of AR within basal CD133+VE cells. Activity of the AR was confirmed in prostate progenitor cells by the expression of low levels of the AR regulated genes PSA, KLK2 and TMPRSS2. The confirmation of AR expression in prostate progenitor cells allows integration of the cancer stem cell theory with the established models of prostate cancer initiation based on a functional AR. Further study of specific AR functions in prostate stem and differentiated cells may highlight novel mechanisms of prostate homeostasis and insights into tumourigenesis.
Collapse
Affiliation(s)
- Stuart C. Williamson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom
| | - Anastasia C. Hepburn
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom
| | - Laura Wilson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom
| | - Kelly Coffey
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom
| | - Claudia A. Ryan-Munden
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom
| | - Deepali Pal
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom
| | - Hing Y. Leung
- The Beatson Institute for Cancer Research, Glasgow, East Dunbartonshire, United Kingdom
| | - Craig N. Robson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom
| | - Rakesh Heer
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom
- * E-mail:
| |
Collapse
|
20
|
Rane JK, Pellacani D, Maitland NJ. Advanced prostate cancer--a case for adjuvant differentiation therapy. Nat Rev Urol 2012; 9:595-602. [PMID: 22890299 DOI: 10.1038/nrurol.2012.157] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The development of novel therapies such as abiraterone acetate and sipuleucel-T has improved the outlook for patients with advanced-stage and castration-resistant prostate cancer. However, the beneficial effects of these drugs are only measured in months. Moreover, the National Institute for Health and Clinical Excellence in the UK had ruled that the use of abiraterone acetate was not cost-effective before cost revision by the manufacturers. The FDA statement asserting that the use of 5α-reductase inhibitors for prostate cancer chemoprevention could increase the risk of developing high-grade prostate cancer also indirectly questions the value of direct androgen response manipulation for long-term benefit. These reports illustrate the need for a fresh and comprehensive analysis of advanced prostate cancer pathology to promote the next generation of effective adjuvant therapies. One such avenue is that of differentiation therapy, which seeks to promote the differentiation of cancer stem cells into a phenotype more sensitive to anticancer therapy than their parents. Using differentiation therapy with current antiandrogen therapies should augment our armoury of treatment for the management of advanced prostate cancer.
Collapse
Affiliation(s)
- Jayant K Rane
- Yorkshire Cancer Research Unit, Department of Biology (Area 13), University of York, York YO10 5DD, UK
| | | | | |
Collapse
|
21
|
Matsuda Y, Kure S, Ishiwata T. Nestin and other putative cancer stem cell markers in pancreatic cancer. Med Mol Morphol 2012; 45:59-65. [PMID: 22718289 DOI: 10.1007/s00795-012-0571-x] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Accepted: 01/11/2012] [Indexed: 12/12/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy with a high incidence of distant metastasis. Recent studies have shown that cancer stem cells (CSCs), which have the potential to self-renew and are pluripotent, are crucially important in cancer cell growth, invasion, metastasis, and recurrence. Recently, several CSC-specific markers for pancreatic cancer have been reported, including CD133, CD24, CD44, CXCR4, EpCAM, ABCG2, c-Met, ALDH-1, and nestin, but their use is controversial. Nestin is one of the class VI intermediate filament proteins and a marker of exocrine progenitors of normal pancreatic tissue. Activated mutations of K-ras in nestin-positive progenitors of pancreatic tissue have been reported to induce cell growth in vitro and induce the formation of precancerous pancreatic lesions. We have reported that downregulation of nestin in PDAC cells inhibits liver metastasis in vivo. Nestin may modulate the invasion and metastasis of nestin-positive progenitor cells during PDAC development and may serve as a novel target for suppressing invasion and metastasis in PDAC. In this review, we summarize what is known about the correlation between PDAC and CSC markers, including nestin.
Collapse
Affiliation(s)
- Yoko Matsuda
- Departments of Pathology and Integrative Oncological Pathology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | | | | |
Collapse
|
22
|
Botchkina G. Colon cancer stem cells--from basic to clinical application. Cancer Lett 2012; 338:127-40. [PMID: 22537805 DOI: 10.1016/j.canlet.2012.04.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Revised: 03/30/2012] [Accepted: 04/15/2012] [Indexed: 12/28/2022]
Abstract
Based on cancer stem cell (CSC) concept of carcinogenesis, tumors represent complex heterogeneous organ-like systems with a hierarchical cellular organization, and only minority phenotypic subpopulations with stem-like properties possess a dual ability to self-renew indefinitely and produce all the heterogeneous cell phenotypes comprising the bulk tumor cells. Large experimental and clinical data indicate that conventional anti-cancer therapies cannot eradicate CSCs, and moreover, they usually increase their number leading to cancer recurrence and further drug resistance. In this review, several current controversies in the CSC field and recent studies, which help to shed light on their origin, are discussed. The emerging necessity for the development of complex, multimodal CSC-targeted treatment strategies, which combine conventional therapeutics with promising pathway-specific modulators, and natural compounds, which can improve the efficacy of conventional anti-cancer therapeutics and decrease their undesirable side effects is presented. Also, novel requirements and criteria necessary for evaluation of the CSC-targeted drug efficacy and relevant experimental models are discussed.
Collapse
Affiliation(s)
- Galina Botchkina
- Department of Pathology, Stony Brook University Medical Center, Stony Brook, NY 11794-3400, United States.
| |
Collapse
|
23
|
Hang D, Dong HC, Ning T, Dong B, Hou DL, Xu WG. Prognostic value of the stem cell markers CD133 and ABCG2 expression in esophageal squamous cell carcinoma. Dis Esophagus 2012; 25:638-44. [PMID: 22236447 DOI: 10.1111/j.1442-2050.2011.01298.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In the light of increasing evidence supporting cancer stem cells (CSCs) theory, the expression of two stem cell markers, CD133 and adenosine triphosphate-binding cassette superfamily G member 2 (ABCG2), in esophageal squamous cell carcinoma (ESCC) was investigated, and their prognostic values were evaluated. Paraffin-embedded tissue sections of 110 ESCC patients were investigated using Immunohistochemistry. The association of CD133 and ABCG2 expression with clinicopathologic characteristics was analyzed by χ(2) test. Survival analysis was carried out using Kaplan-Meier method and Cox proportional hazards model. CD133 and ABCG2 expression were detected in 27.3% and 15.5% of ESCC patients, respectively. The presence of CD133-positive cancer cells was associated with tumor cell differentiation (P= 0.008) but not significantly related to the survival of ESCC patients (P= 0.085). ABCG2 expression was not associated with clinicopathologic characteristics but was a significant prognostic factor for adverse overall survival of ESCC patients (P= 0.005). The median overall survival time for ESCC patients with and without ABCG2 expression were 21.8 and >49.3 months, respectively. A combined analysis of CD133 and ABCG2 expression did not show that ESCC patients with coexpression of these two markers had a worse prognosis than those with only ABCG2 expression (P= 0.934). Moreover, ABCG2 expression was revealed to be an independent prognostic factor along with tumor node metastasis stage in multivariate analysis (hazard ratio of ABCG2, 3.38; 95% confidence interval, 1.61∼7.09; P= 0.001). By survival analysis based on tumor node metastasis stage of ESCC, the association between ABCG2 expression and the patients' prognosis was found significant in the group of relatively early stage (P= 0.005) and marginally significant in the group of relatively late stage (P= 0.058). This is the first time to report the presence of CD133-positive cancer cells in ESCC but not supporting its prognostic value and validity as a CSC marker for ESCC. ABCG2 expression was found to correlate with the survival of ESCC patients, especially those at relatively early stage, suggesting that ABCG2-positive cancer cells may represent a pool of CSCs in ESCC, and relatively early-stage patients with ABCG2 expression may deserve more intensive or targeted therapy.
Collapse
Affiliation(s)
- D Hang
- Laboratory of Genetic, Peking University School of Oncology, Beijing Cancer Hospital and Institute, Beijing, China
| | | | | | | | | | | |
Collapse
|
24
|
Maitland NJ, Frame FM, Polson ES, Lewis JL, Collins AT. Prostate cancer stem cells: do they have a basal or luminal phenotype? Discov Oncol 2011; 2:47-61. [PMID: 21761340 DOI: 10.1007/s12672-010-0058-y] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The prostate is a luminal secretory tissue whose function is regulated by male sex hormones. Castration produces involution of the prostate to a reversible basal state, and as the majority of prostate cancers also have a luminal phenotype, drug-induced castration is a front line therapy. It has therefore been assumed that the tumor arises from transformation of a luminal progenitor cell. Here, we demonstrate that a minority basal "cancer stem cell" (CSC) population persists in primary human prostate cancers, as in normal prostate, serving as a reservoir for tumor recurrence after castration therapy. While the CSCs exhibit a degree of phenotypic fluidity from different patients, the tumor-initiating cells in immunocompromised mice express basal markers (such as p63), but do not express androgen receptor (AR) or markers of luminal differentiation (PSA, PAP) when freshly fractionated from human tissues or following culture in vitro. Estrogen receptors α and β and AR are transcriptionally active in the transit amplifying (TA) cell (the progeny of SC). However, AR protein is consistently undetectable in TA cells. The prostate-specific TMPRSS2 gene, while upregulated by AR activity in luminal cells, is also transcribed in basal populations, confirming that AR acts as an expression modulator. Selected cells with basal phenotypes are tumor initiating, but the resultant tumors are phenotypically intermediate, with focal expression of AR, AMACR, and p63. In vitro differentiation experiments, employing lentivirally transduced SCs with a luminal (PSA-probasin) promoter regulating a fluorescent indicator gene, confirm that the basal SCs are the source of luminal progeny.
Collapse
Affiliation(s)
- Norman J Maitland
- YCR Cancer Research Unit, Department of Biology (Area 13), University of York, Heslington, York YO10 5DD, UK.
| | | | | | | | | |
Collapse
|
25
|
Zhang Z, Filho MS, Nör JE. The biology of head and neck cancer stem cells. Oral Oncol 2011; 48:1-9. [PMID: 22070916 DOI: 10.1016/j.oraloncology.2011.10.004] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 10/06/2011] [Accepted: 10/10/2011] [Indexed: 12/18/2022]
Abstract
Emerging evidence indicates that a small population of cancer cells is highly tumorigenic, endowed with self-renewal, and has the ability to differentiate into cells that constitute the bulk of tumors. These cells are considered the "drivers" of the tumorigenic process in some tumor types, and have been named cancer stem cells. Epithelial-mesenchymal transition (EMT) appears to be involved in the process leading to the acquisition of stemness by epithelial tumor cells. Through this process, cells acquire an invasive phenotype that may contribute to tumor recurrence and metastasis. Cancer stem cells have been identified in human head and neck squamous cell carcinomas (HNSCC) using markers such as CD133 and CD44 expression, and aldehyde dehydrogenase (ALDH) activity. The head and neck cancer stem cells reside primarily in perivascular niches in the invasive front where endothelial-cell initiated events contribute to their survival and function. In this review, we discuss the state-of-the-knowledge on the pathobiology of cancer stem cells, with a focus on the impact of these cells to head and neck tumor progression.
Collapse
Affiliation(s)
- Zhaocheng Zhang
- Department of Restorative Sciences, University of Michigan School of Dentistry, Ann Arbor, MI 48109, United States
| | | | | |
Collapse
|
26
|
Marcinkiewicz K, Scotland KB, Boorjian SA, Nilsson EM, Persson JL, Abrahamsson PA, Allegrucci C, Hughes IA, Gudas LJ, Mongan NP. The androgen receptor and stem cell pathways in prostate and bladder cancers (review). Int J Oncol 2011; 40:5-12. [PMID: 21956088 DOI: 10.3892/ijo.2011.1212] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Accepted: 08/12/2011] [Indexed: 12/30/2022] Open
Abstract
Bladder cancer is three times more common in men than in women. However, the physiological basis of the male predominance of bladder cancer remains poorly understood. A higher than expected association of prostate and bladder cancers has also been reported which may indicate a common mechanism of carcinogenesis. Consistent with this, androgens and the androgen receptor (AR) play essential roles in prostate carcinogenesis and are believed to play a role in bladder carcinogenesis. There is also evidence implicating cancer stem cells in prostate and bladder cancers. Indeed putative prostate and bladder cancer stem cells share some common molecular features. We highlight key proteins (CD49f, CD133, PTEN, CD44) which are implicated in both prostate and bladder cancers and are enriched in putative prostate and bladder cancer stem cells. We examine published chromatin immuno-precipitation studies analyzing the genome-wide distribution of the AR to identify AR association with, and by inference potential AR-regulation of, these loci. We discuss recent evidence indicating a role for the AR in the splicing of the key urological stem cell protein CD44. We propose a model whereby aberrant AR regulation of these putative stem cell proteins contributes to malignant transformation of prostate and bladder cells. For these reasons we propose that the relationship between androgens and cancer stem cell associated proteins warrants further investigation.
Collapse
|
27
|
Lawrence MG, Margaryan NV, Loessner D, Collins A, Kerr KM, Turner M, Seftor EA, Stephens CR, Lai J, BioResource APC, Postovit LM, Clements JA, Hendrix MJ. Reactivation of embryonic nodal signaling is associated with tumor progression and promotes the growth of prostate cancer cells. Prostate 2011; 71:1198-209. [PMID: 21656830 PMCID: PMC3234312 DOI: 10.1002/pros.21335] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 12/07/2010] [Indexed: 11/06/2022]
Abstract
BACKGROUND Nodal is a member of the transforming growth factor β (TGFβ) superfamily that directs embryonic patterning and promotes the plasticity and tumorigenicity of tumor cells, but its role in the prostate is unknown. The goal of this study was to characterize the expression and function of Nodal in prostate cancer and determine whether, like other TGFβ ligands, it modulates androgen receptor (AR) activity. METHODS Nodal expression was investigated using immunohistochemistry of tissue microarrays and Western blots of prostate cell lines. The functional role of Nodal was examined using Matrigel and soft agar growth assays. Cross-talk between Nodal and AR signaling was assessed with luciferase reporter assays and expression of endogenous androgen regulated genes. RESULTS Significantly increased Nodal expression was observed in cancer compared with benign prostate specimens. Nodal was only expressed by DU145 and PC3 cells. All cell lines expressed Nodal's co-receptor, Cripto-1, but lacked Lefty, a critical negative regulator of Nodal signaling. Recombinant human Nodal triggered downstream Smad2 phosphorylation in DU145 and LNCaP cells, and stable transfection of pre-pro-Nodal enhanced the growth of LNCaP cells in Matrigel and soft agar. Finally, Nodal attenuated AR signaling, reducing the activity of a PSA promoter construct in luciferase assays and down-regulating the endogenous expression of androgen regulated genes. CONCLUSIONS An aberrant Nodal signaling pathway is re-expressed and functionally active in prostate cancer cells.
Collapse
Affiliation(s)
- Mitchell G. Lawrence
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia, 4059
| | - Naira V. Margaryan
- Program in Cancer Biology and Epigenomics, Children’s Memorial Research Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA, 60614
| | - Daniela Loessner
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia, 4059
| | - Angus Collins
- Sullivan Nicolaides Pathology, Brisbane, Queensland, Australia, 4068
| | - Kris M. Kerr
- Sullivan Nicolaides Pathology, Brisbane, Queensland, Australia, 4068
| | - Megan Turner
- Sullivan Nicolaides Pathology, Brisbane, Queensland, Australia, 4068
| | - Elisabeth A. Seftor
- Program in Cancer Biology and Epigenomics, Children’s Memorial Research Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA, 60614
| | - Carson R. Stephens
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia, 4059
| | - John Lai
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia, 4059
| | | | - Lynne-Marie Postovit
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada, N6A 5C1
| | - Judith A. Clements
- Australian Prostate Cancer Research Centre-Queensland and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia, 4059
- Correspondence: Mary J.C. Hendrix, Children’s Memorial Research Center, Northwestern University, Feinberg School of Medicine, 2300 Children’s Plaza, Box 222, Chicago, IL 60614-3394, and Judith A. Clements, Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Queensland, 4059,
| | - Mary J.C. Hendrix
- Program in Cancer Biology and Epigenomics, Children’s Memorial Research Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA, 60614
- Correspondence: Mary J.C. Hendrix, Children’s Memorial Research Center, Northwestern University, Feinberg School of Medicine, 2300 Children’s Plaza, Box 222, Chicago, IL 60614-3394, and Judith A. Clements, Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Queensland, 4059,
| |
Collapse
|
28
|
Pellacani D, Packer RJ, Frame FM, Oldridge EE, Berry PA, Labarthe MC, Stower MJ, Simms MS, Collins AT, Maitland NJ. Regulation of the stem cell marker CD133 is independent of promoter hypermethylation in human epithelial differentiation and cancer. Mol Cancer 2011; 10:94. [PMID: 21801380 PMCID: PMC3162587 DOI: 10.1186/1476-4598-10-94] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 07/29/2011] [Indexed: 11/17/2022] Open
Abstract
Background Epigenetic control is essential for maintenance of tissue hierarchy and correct differentiation. In cancer, this hierarchical structure is altered and epigenetic control deregulated, but the relationship between these two phenomena is still unclear. CD133 is a marker for adult stem cells in various tissues and tumour types. Stem cell specificity is maintained by tight regulation of CD133 expression at both transcriptional and post-translational levels. In this study we investigated the role of epigenetic regulation of CD133 in epithelial differentiation and cancer. Methods DNA methylation analysis of the CD133 promoter was done by pyrosequencing and methylation specific PCR; qRT-PCR was used to measure CD133 expression and chromatin structure was determined by ChIP. Cells were treated with DNA demethylating agents and HDAC inhibitors. All the experiments were carried out in both cell lines and primary samples. Results We found that CD133 expression is repressed by DNA methylation in the majority of prostate epithelial cell lines examined, where the promoter is heavily CpG hypermethylated, whereas in primary prostate cancer and benign prostatic hyperplasia, low levels of DNA methylation, accompanied by low levels of mRNA, were found. Moreover, differential methylation of CD133 was absent from both benign or malignant CD133+/α2β1integrinhi prostate (stem) cells, when compared to CD133-/α2β1integrinhi (transit amplifying) cells or CD133-/α2β1integrinlow (basal committed) cells, selected from primary epithelial cultures. Condensed chromatin was associated with CD133 downregulation in all of the cell lines, and treatment with HDAC inhibitors resulted in CD133 re-expression in both cell lines and primary samples. Conclusions CD133 is tightly regulated by DNA methylation only in cell lines, where promoter methylation and gene expression inversely correlate. This highlights the crucial choice of cell model systems when studying epigenetic control in cancer biology and stem cell biology. Significantly, in both benign and malignant prostate primary tissues, regulation of CD133 is independent of DNA methylation, but is under the dynamic control of chromatin condensation. This indicates that CD133 expression is not altered in prostate cancer and it is consistent with an important role for CD133 in the maintenance of the hierarchical cell differentiation patterns in cancer.
Collapse
Affiliation(s)
- Davide Pellacani
- YCR Cancer Research Unit, Department of Biology, University of York, UK.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Sherman JH, Redpath GT, Redick JA, Purow BW, Laws ER, Jane JA, Shaffrey ME, Hussaini IM. A novel fixative for immunofluorescence staining of CD133-positive glioblastoma stem cells. J Neurosci Methods 2011; 198:99-102. [PMID: 21402102 DOI: 10.1016/j.jneumeth.2011.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 03/01/2011] [Accepted: 03/03/2011] [Indexed: 11/15/2022]
Abstract
Isolation of glioblastoma stem cells requires incubation of tumor cells in a neural stem cell media. Neurospheres containing these glioblastoma stem cells are formed after approximately a five-day period. These cells can then be analyzed for the presence of stem cell markers. Immunofluorescence staining for these markers can serve as a valuable tool for analyzing the intact neurosphere directly in stem cell media. Here we present the use of a novel fixative (1,4-benzoquinone) for immunoflourescence staining of neurospheres.
Collapse
Affiliation(s)
- Jonathan H Sherman
- Department of Neurological Surgery, University of Virginia, Charlottesville, Virginia, USA.
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Missol-Kolka E, Karbanová J, Janich P, Haase M, Fargeas CA, Huttner WB, Corbeil D. Prominin-1 (CD133) is not restricted to stem cells located in the basal compartment of murine and human prostate. Prostate 2011; 71:254-67. [PMID: 20717901 DOI: 10.1002/pros.21239] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2010] [Accepted: 06/23/2010] [Indexed: 12/25/2022]
Abstract
BACKGROUND Rodent and human prominin-1 are expressed in numerous adult epithelia and somatic stem cells. A report has shown that human PROMININ-1 carrying the AC133 epitope can be used to identify rare prostate basal stem cells (Richardson et al., J Cell Sci 2004; 117:3539–3545). Here we re-investigated its general expression in male reproductive tract including mouse and human prostate and in prostate cancer samples using various anti-prominin-1 antibodies. METHODS The expression was monitored by immunohistochemistry and blotting. Murine tissues were stained with 13A4 monoclonal antibody (mAb) whereas human samples were examined either with the AC133 mAb recognizing the AC133 glycosylation-dependent epitope or 80B258 mAb directed against the PROMININ-1 polypeptide. RESULTS Mouse prominin-1 was detected at the apical domain of epithelial cells of ductus deferens, seminal vesicles, ampullary glands, and all prostatic lobes. In human prostate, immunoreactivity for 80B258, but not AC133 was revealed at the apical side of some epithelial (luminal) cells, in addition to the minute population of AC133/80B258-positive cells found in basal compartment. Examination of prostate adenocarcinoma revealed the absence of 80B258 immunoreactivity in the tumor regions. However, it was found to be up-regulated in luminal cells in the vicinity of the cancer areas. CONCLUSIONS Mouse prominin-1 is widely expressed in prostate whereas in human only some luminal cells express it, demonstrating nevertheless that its expression is not solely associated with basal stem cells. In pathological samples, our pilot evaluation shows that PROMININ-1 is down-regulated in the cancer tissues and up-regulated in inflammatory regions.
Collapse
Affiliation(s)
- Ewa Missol-Kolka
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | | | | | | | | | | | | |
Collapse
|
31
|
Tumour-initiating stem-like cells in human prostate cancer exhibit increased NF-κB signalling. Nat Commun 2011; 2:162. [PMID: 21245843 PMCID: PMC3105310 DOI: 10.1038/ncomms1159] [Citation(s) in RCA: 200] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Accepted: 12/08/2010] [Indexed: 01/06/2023] Open
Abstract
Androgen depletion is a key strategy for treating human prostate cancer, but the presence of hormone-independent cells escaping treatment remains a major therapeutic challenge. Here, we identify a minor subset of stem-like human prostate tumour-initiating cells (TICs) that do not express prostate cancer markers, such as androgen receptor or prostate specific antigen. These TICs possess stem cell characteristics and multipotency as demonstrated by in vitro sphere-formation and in vivo tumour-initiation, respectively. The cells represent an undifferentiated subtype of basal cells and can be purified from prostate tumours based on coexpression of the human pluripotent stem cell marker TRA-1-60 with CD151 and CD166. Such triple-marker-positive TICs recapitulate the original parent tumour heterogeneity in serial xeno-transplantations indicating a tumour cell hierarchy in human prostate cancer development. These TICs exhibit increased nuclear factor-κB activity. These findings are important in understanding the molecular basis of human prostate cancer. Tumours consist of heterogeneous cell types that respond differently to treatment. Here, on the basis of the expression of three different proteins, the authors describe a subset of prostate cancer cells that have stem cell-like properties that are able to initiate tumour formation in vivo.
Collapse
|
32
|
Cancer stem cells in urologic cancers. Urol Oncol 2010; 28:585-90. [DOI: 10.1016/j.urolonc.2009.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Revised: 06/14/2009] [Accepted: 06/16/2009] [Indexed: 12/31/2022]
|
33
|
Cameron SR, Dahler AL, Endo-Munoz LB, Jabbar I, Thomas GP, Leo PJ, Poth K, Rickwood D, Guminski A, Saunders NA. Tumor-initiating activity and tumor morphology of HNSCC is modulated by interactions between clonal variants within the tumor. J Transl Med 2010; 90:1594-603. [PMID: 20661227 DOI: 10.1038/labinvest.2010.131] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Tumor initiation (TI) in xenotransplantation models of head and neck squamous cell carcinoma (HNSCC) is an inefficient process. Poor TI could be due to (1) posttransplant cell loss, (2) a rare sub-population of cancer stem cells or (3) a requirement for specific cellular interactions, which rely on cell number. By tracking GFP-expressing HNSCC cells, we conclude that the posttransplant loss of cancer cells is minimal in the xenotransplant model. Furthermore, an examination of putative cancer stem cell markers (such as CD133, CD44, SP and label retention) in HNSCC cell lines revealed no correlation between marker expression and tumorigenicity. In addition, single-cell clones randomly isolated from HNSCC cell lines and then transplanted into mice were all capable of initiating tumors with efficiencies varying almost 34-fold. As the observed variation in the clones was both more and less tumorigenic than the parental cells, a combination of two clones, at suboptimal cell numbers for TI, was implanted into mice and was found to modulate the tumor-initiating activity, thus indicating that TI is dependent on a 'critical' number of cells and, for the first time, that interactions between clonal variants within tumors can modulate the overall tumor-initiating activity. Put in context with previous literature on tumorigenic activity, we believe that interactions between clonal variants within a tumor as well as (1) stromal interactions, (2) angiogenic activity, (3) immunocompetence and (4) cancer stem cells may all contribute to tumorigenic potential and the propensity for tumor growth and recurrence.
Collapse
Affiliation(s)
- Sarina R Cameron
- Epithelial Pathobiology Group, Diamantina Institute, Princess Alexandra Hospital, University of Queensland, Woolloongabba, Queensland, Australia
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Subramaniam D, Ramalingam S, Houchen CW, Anant S. Cancer stem cells: a novel paradigm for cancer prevention and treatment. Mini Rev Med Chem 2010; 10:359-71. [PMID: 20370703 DOI: 10.2174/138955710791330954] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Accepted: 03/12/2010] [Indexed: 12/21/2022]
Abstract
Cancer is the second leading cause for mortality in US only after heart disease and lacks a good or effective therapeutic paradigm. Despite the emergence of new, targeted agents and the use of various therapeutic combinations, none of the treatment options available is curative in patients with advanced cancer. A growing body of evidence is supporting the idea that human cancers can be considered as a stem cell disease. Malignancies are believed to originate from a fraction of cancer cells that show self renewal and pluripotency and are capable of initiating and sustaining tumor growth. The cancer-initiating cells or cancer stem cells were originally identified in hematological malignancies but is now being recognized in several solid tumors. The hypothesis of stem cell-driven tumorigenesis raises questions as to whether the current treatments, most of which require rapidly dividing cells are able to efficiently target these slow cycling tumorigenic cells. Recent characterization of cancer stem cells should lead to the identification of key signaling pathways that may make cancer stem cells vulnerable to therapeutic interventions that target drug-effluxing capabilities, anti-apoptotic mechanisms, and induction of differentiation. Dietary phytochemicals possess anti-cancer properties and represent a promising approach for the prevention and treatment of many cancers.
Collapse
Affiliation(s)
- Dharmalingam Subramaniam
- Medicine and Cell Biology, University of Oklahoma Health Sciences Center, 920 Stanton L. Young Boulevard, WP1345, Oklahoma City, OK 73104, USA
| | | | | | | |
Collapse
|
35
|
Duhagon MA, Hurt EM, Sotelo-Silveira JR, Zhang X, Farrar WL. Genomic profiling of tumor initiating prostatospheres. BMC Genomics 2010; 11:324. [PMID: 20500816 PMCID: PMC2900264 DOI: 10.1186/1471-2164-11-324] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Accepted: 05/25/2010] [Indexed: 12/21/2022] Open
Abstract
Background The cancer stem cell (CSC) hypothesis proposes that a population of tumor cells bearing stem cell properties is responsible for the origin and maintenance of tumors. Normal and cancer stem cells possess the ability to grow in vitro as self-renewing spheres, but the molecular basis of this phenotype remains largely unknown. We intended to establish a comprehensive culture system to grow prostatospheres (PSs) from both cancer cell lines and patient tumors. We then used gene expression microarrays to gain insight on the molecular pathways that sustain the PS tumor initiating cell (TIC) phenotype. Results Traditional stem cell medium (SCM) supplemented with Knockout™SR (KO) allows the propagation of monoclonal PSs from cell lines and primary cells. PSs display gene expression and tumorigenicity hallmarks of TICs. Gene expression analysis defined a gene signature composed of 66 genes that characterize LNCaP and patient PSs. This set includes novel prostate TIC growth factors (NRP1, GDF1, JAG1), proteins implicated in cell adhesion and cytoskeletal maintenance, transcriptional regulators (MYCBP, MYBL1, ID1, ID3, FOS, ELF3, ELF4, KLF2, KLF5) and factors involved in protein biosynthesis and metabolism. Meta-analysis in Oncomine reveals that some of these genes correlate with prostate cancer status and/or progression. Reporter genes and inhibitors indicate that the Notch pathway contributes to prostatosphere growth. Conclusions We have developed a model for the culture of PSs, and provide a genomic profile that support CSCs identity. This signature identifies novel markers and pathways that are predicted to correlate with prostate cancer evolution.
Collapse
Affiliation(s)
- Maria Ana Duhagon
- Cancer Stem Cell Section, Laboratory of Cancer Prevention, National Cancer Institute at Frederick, 1050 Boyles Street, Frederick, MD 21702, USA.
| | | | | | | | | |
Collapse
|
36
|
Honoki K. Do stem-like cells play a role in drug resistance of sarcomas? Expert Rev Anticancer Ther 2010; 10:261-70. [PMID: 20132001 DOI: 10.1586/era.09.184] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Stem cells are defined by their unique characteristics, which include their abilities to self-renew and differentiate. Normal somatic stem cells have been isolated from various tissues such as bone marrow, adipose tissue, mammary glands and the nervous system. They are considered naturally resistant to chemotherapeutic agents because they express high levels of membrane transporter molecules, detoxifying enzymes and DNA repair proteins. Several recent studies have identified the presence of side populations in various cancer tissues, the so-called 'cancer stem cells', which are defined as the counterparts of stem cells in tumor tissues. These cancer stem cells possess stem-like properties, such as self-renewal and differentiation abilities, as well as playing a role in tumor initiation. Most sarcomas, which are thought to originate from mesenchymal stem cells, are highly malignant and approximately 30-40% of them show local and/or distant relapse (metastasis), even in the case of relatively chemosensitive tumors such as osteosarcomas and Ewing sarcomas. Several studies have suggested the presence of stem-like cell populations in sarcomas, based on their tumorigenicity and drug resistance. This review explores the issues of drug resistance of cancer stem cells in sarcomas and the possibilities of targeting cancer stem cells for the future treatment of sarcomas.
Collapse
Affiliation(s)
- Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan.
| |
Collapse
|
37
|
Mimeault M, Johansson SL, Henichart JP, Depreux P, Batra SK. Cytotoxic effects induced by docetaxel, gefitinib, and cyclopamine on side population and nonside population cell fractions from human invasive prostate cancer cells. Mol Cancer Ther 2010; 9:617-30. [PMID: 20179163 DOI: 10.1158/1535-7163.mct-09-1013] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The present study has been undertaken to establish the therapeutic benefit of cotargeting epidermal growth factor receptor (EGFR) and sonic hedgehog pathways by using gefitinib and cyclopamine, respectively, for improving the efficacy of the current chemotherapeutic drug docetaxel to counteract the prostate cancer progression from locally invasive to metastatic and recurrent disease stages. The data from immuofluorescence analyses revealed that EGFR/Tyr(1173)-pEGFR, sonic hedgehog ligand, smoothened coreceptor, and GLI-1 were colocalized with the CD133(+) stem cell-like marker in a small subpopulation of prostate cancer cells. These signaling molecules were also present in the bulk tumor mass of CD133(-) prostate cancer cells with a luminal phenotype detected in patient's adenocarcinoma tissues. Importantly, the results revealed that the CD133(+)/CD44(high)/AR(-/low) side population (SP) cell fraction endowed with a high self-renewal potential isolated from tumorigenic and invasive WPE1-NB26 cells by the Hoechst dye technique was insensitive to the current chemotherapeutic drug, docetaxel. In contrast, the docetaxel treatment induced significant antiproliferative and apoptotic effects on the CD133(-)/CD44(low)/AR(+) non-SP cell fraction isolated from the WPE1-NB26 cell line. Of therapeutic interest, the results have also indicated that combined docetaxel, gefitinib, and cyclopamine induced greater antiproliferative and apoptotic effects on SP and non-SP cell fractions isolated from WPE1-NB26 cells than individual drugs or two-drug combinations. Altogether, these observations suggest that EGFR and sonic hedgehog cascades may represent the potential therapeutic targets of great clinical interest to eradicate the total prostate cancer cell mass and improve the current docetaxel-based therapies against locally advanced and invasive prostate cancers, and thereby prevent metastases and disease relapse.
Collapse
Affiliation(s)
- Murielle Mimeault
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198-5870, USA
| | | | | | | | | |
Collapse
|
38
|
Abstract
Although both prostate epithelial stem cells and prostate cancer stem cells are implicated in the differentiation of the normal prostate gland and carcinogenesis of prostate cancer, there has, until recently, been little information regarding their biology. This review summarizes the recent advancements in cell biological research including various in vitro culture systems that have offered the characterization and isolation of prostate epithelial stem cells and prostate cancer stem cells. In addition, the stromal niche or microenvironment of stem cells plays an essential role in proliferation and differentiation of normal stem cells. Stroma surrounding cancer cells, which also provide another unique niche, may involve the initiation and development of cancer stem cells. Investigation of stem cells and their microenvironments in the prostate should lead to the elucidation of biological features and the development of novel treatments for prostate cancer.
Collapse
Affiliation(s)
- Jun Miki
- Department of Urology, Jikei University School of Medicine, Tokyo, Japan.
| |
Collapse
|
39
|
Wu Y, Wu PY. CD133 as a marker for cancer stem cells: progresses and concerns. Stem Cells Dev 2009; 18:1127-34. [PMID: 19409053 DOI: 10.1089/scd.2008.0338] [Citation(s) in RCA: 221] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Increasing evidence supports the cancer stem cell hypothesis, which postulates that cancer stem cells are responsible for tumor initiation, metastasis, and resistance to treatments. Therefore, they are the cells to target to cure a cancer. To study the behavior of cancer stem cells, markers for prospective isolation of cancer stem cells are crucial. Recently, CD133 has been used extensively as a marker for the identification of stem cells from normal and cancerous tissues. Several more recent studies, however, indicate that CD133 are expressed in differentiated epithelial cells in various organs, and CD133-negative cancer cells can also initiate tumors. The findings suggest that CD133 is not restricted to somatic stem cells and cancer stem cells. However, in many cases CD133 may be used in combination with other markers or methods to acquire stem cells. In this review, we summarize findings in CD133 expression in various tissues and critically discuss its applications in stem cell isolation.
Collapse
Affiliation(s)
- Yaojiong Wu
- Life Science Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, People's Republic of China.
| | | |
Collapse
|
40
|
Attard G, Rizzo S, Ledaki I, Clark J, Reid AHM, Thompson A, Khoo V, de Bono JS, Cooper CS, Hudson DL. A novel, spontaneously immortalized, human prostate cancer cell line, Bob, offers a unique model for pre-clinical prostate cancer studies. Prostate 2009; 69:1507-20. [PMID: 19544327 DOI: 10.1002/pros.20997] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
INTRODUCTION New in vitro models of castration-resistant prostate cancer (CRPC) are urgently required. METHODS Trans-rectal needle biopsies (TRBP) of the prostate were performed for research purposes on progressing CRPC patients who had not received prior treatment to the prostate. Biopsies were immediately digested with collagenase and plated onto collagen-coated flasks with a feeder layer of 3T6 cells and cultured in cytokine-supplemented keratinocyte serum-free medium. RESULTS Biopsies from 25 patients were collected and one of these, following an initial period of crisis, spontaneously immortalized. A series of cell lines called Bob were then established from a clone that survived CD133-selection followed by 4 weeks under adhesion-independent conditions in methylcellulose. Gains and losses previously described in clinical prostate tumors, most notably loss of 8(p) and gain of 8(q), were identified on comparative genomic hybridization and long-term growth in culture, survival in methylcellulose and invasion through matrigel confirmed the malignant phenotype of Bob. Furthermore, Bob expressed high levels of p53 and markers of early differentiation, including K8, prostatic acid phosphatase and prostate stem cell antigen. There was, however, no in vivo growth and ERG and ETV1 were not rearranged. Growth in serum permitted some differentiation. CONCLUSION This is the first spontaneously immortalized prostate cancer cell line to be established from a TRBP of a patient with CRPC. Bob is a novel pre-clinical model for functional studies in CRPC and especially for studying the CRPC "basal" phenotype.
Collapse
|
41
|
Pascal LE, Vêncio RZN, Goo YA, Page LS, Shadle CP, Liu AY. Temporal expression profiling of the effects of secreted factors from prostate stromal cells on embryonal carcinoma stem cells. Prostate 2009; 69:1353-65. [PMID: 19455603 DOI: 10.1002/pros.20982] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND There is a growing body of evidence indicating that epigenetic influences originating from stromal cells in the immediate microenvironment may play a role in carcinogenesis. Determining the molecular mechanisms involved in stromal-stem cell interaction could provide critical insight into prostate development and disease progression, particularly with regard to their relationship to and influence on the putative cancer stem cell. METHODS Prostate and bladder stromal cells prepared from tissue specimens were co-cultured with the pluripotent embryonal carcinoma cell line NCCIT. Transcriptome analysis was used to characterize NCCIT cell response to prostate or bladder signaling. RESULTS A systems approach demonstrated that prostate stromal cells were capable of inducing gene expression changes in NCCIT through secreted factors. Induction led to a loss of embryonic stem cell markers, with concurrent up-regulation of many genes characteristic of stromal mesenchyme cells as well as some of epithelial and cancer stem cells. Bladder stromal signaling produced gene expression changes different from those of prostate signaling. CONCLUSIONS This study indicates that paracrine stromal cell signaling can affect cancer stem cell response in an organ-specific manner and may provide insight for future development of treatment strategies such as differentiation therapy.
Collapse
Affiliation(s)
- Laura E Pascal
- Department of Urology, Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington, USA.
| | | | | | | | | | | |
Collapse
|
42
|
Ischenko I, Seeliger H, Kleespies A, Angele MK, Eichhorn ME, Jauch KW, Bruns CJ. Pancreatic cancer stem cells: new understanding of tumorigenesis, clinical implications. Langenbecks Arch Surg 2009; 395:1-10. [PMID: 19421768 DOI: 10.1007/s00423-009-0502-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2009] [Accepted: 04/24/2009] [Indexed: 01/12/2023]
Abstract
PURPOSE Since the discovery of cancer cells with stem-like characteristics in hematopoietic malignancies and, more recently, in solid tumors, enormous attention has been paid to the stem-cell nature of pancreatic cancer. Among the most important properties of cancer stem cells their high capacity for tumorigenicity as well as their ability to metastasize is under special research interest today. METHODS Here, we give a brief overview of main components used to confirm the stem-cell-like behavior of putative cancer stem cells and discuss markers and methods for identifying them in pancreatic cancer. Finally, the review provides some new suggestions as to how specifically target these cells and improve current therapy regimens. RESULTS The cancer stem-cell hypothesis is a fundamentally different model of carcinogenesis composed of two separate but dependent on each other characteristics of stem cells--aberrant activation of their tightly regulated processes of self-renewal and differentiation and their resistance towards chemo- and radiotherapy. The cancer stem cells may further be identified based on their expression of cell surface markers or their functional characteristics. The concept of molecular targeting of such highly tumorigenic cancer cells aimed to sensitize tumors toward conventional therapies and effectively abrogate tumor growth and metastasis. CONCLUSIONS The presence of cancer stem cells in pancreatic tumors has prognostic relevance and influences therapeutic response. Evidence suggests that metastatic potential may be conferred to these highly tumorigenic cells as well. A better understanding of the biological behavior of these cells may further improve therapeutic approaches and outcomes in patients with this devastating disease.
Collapse
Affiliation(s)
- Ivan Ischenko
- Department of Surgery, Grosshadern Campus, Medical Center of the University of Munich, Marchioninistr. 15, Munich, 81377, Germany.
| | | | | | | | | | | | | |
Collapse
|
43
|
Ding W, Mouzaki M, You H, Laird JC, Mato J, Lu SC, Rountree CB. CD133+ liver cancer stem cells from methionine adenosyl transferase 1A-deficient mice demonstrate resistance to transforming growth factor (TGF)-beta-induced apoptosis. Hepatology 2009; 49:1277-86. [PMID: 19115422 PMCID: PMC2853874 DOI: 10.1002/hep.22743] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
UNLABELLED Methionine adenosyltransferase (MAT) is an essential enzyme required for S-adenosylmethionine biosynthesis. Hepatic MAT activity falls during chronic liver injury, and mice lacking Mat1a develop spontaneous hepatocellular carcinoma by 18 months. We have previously demonstrated that CD133(+)CD45(-) oval cells isolated from 16-month-old Mat1a(-/-) mice represent a liver cancer stem cell population. The transforming growth factor beta (TGF-beta) pathway constitutes a central signaling network in proliferation, apoptosis, and tumorigenesis. In this study, we tested the response of tumorigenic liver stem cells to TGF-beta. CD133(+)CD45(-) oval cells were isolated from premalignant 16-month-old Mat1a(-/-) mice by flow cytometry and expanded as five clone lines derived from a single cell. All clone lines demonstrated expression of both hepatocyte and cholangiocyte markers and maintained a small population (0.5% to 2%) of CD133(+) cells in vitro, and three of five clone lines produced tumors. Although TGF-beta1 inhibited cell growth equally in CD133(-) and CD133(+) cells from each clone line, the CD133(+) population demonstrated significant resistance to TGF-beta-induced apoptosis compared with CD133(-) cells. Furthermore, CD133(+) cells demonstrated a substantial increase in mitogen-activated protein kinase (MAPK) pathway activation, as demonstrated by phosphorylated extracellular signal-regulated kinase levels before and after TGF-beta stimulation. MAPK inhibition using mitogen-activated protein kinase kinase 1 (MEK1) inhibitor PD98059 led to a significant increase in TGF-beta-induced apoptosis in CD133(+) cells. Conversely, a constitutively active form of MEK1 blocked the apoptotic effects of TGF-beta in CD133(-) cells. CONCLUSION CD133(+) liver cancer stem cells exhibit relative resistance to TGF-beta-induced apoptosis. One mechanism of resistance to TGF-beta-induced apoptosis in CD133(+) cancer stem cells is an activated mitogen-activated protein kinase/extracellular signal-regulated kinase pathway.
Collapse
Affiliation(s)
- Wei Ding
- Department of Pediatrics, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA,Department of Pharmacology, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA
| | - Marialena Mouzaki
- Department of Pediatrics, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA,Department of Pharmacology, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA
| | - Hanning You
- Department of Pediatrics, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA,Department of Pharmacology, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA
| | - Joshua C. Laird
- Department of Pediatrics, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA,Department of Pharmacology, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA
| | - Jose Mato
- CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology, Park of Bizkaia, Bizkaia, Spain
| | - Shelly C. Lu
- Division of Gastroenterology and Liver Diseases, USC Research Center for Liver Diseases, USC-UCLA Research Center for Alcoholic Liver and Pancreatic Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - C. Bart Rountree
- Department of Pediatrics, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA,Department of Pharmacology, The Pennsylvania State University College of Medicine, Penn State Children’s Hospital, Hershey, PA
| |
Collapse
|
44
|
Knight JF, Shepherd CJ, Rizzo S, Brewer D, Jhavar S, Dodson AR, Cooper CS, Eeles R, Falconer A, Kovacs G, Garrett MD, Norman AR, Shipley J, Hudson DL. TEAD1 and c-Cbl are novel prostate basal cell markers that correlate with poor clinical outcome in prostate cancer. Br J Cancer 2008; 99:1849-58. [PMID: 19002168 PMCID: PMC2600693 DOI: 10.1038/sj.bjc.6604774] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2008] [Revised: 10/16/2008] [Accepted: 10/16/2008] [Indexed: 12/20/2022] Open
Abstract
Prostate cancer is the most frequently diagnosed male cancer, and its clinical outcome is difficult to predict. The disease may involve the inappropriate expression of genes that normally control the proliferation of epithelial cells in the basal layer and their differentiation into luminal cells. Our aim was to identify novel basal cell markers and assess their prognostic and functional significance in prostate cancer. RNA from basal and luminal cells isolated from benign tissue by immunoguided laser-capture microdissection was subjected to expression profiling. We identified 112 and 267 genes defining basal and luminal populations, respectively. The transcription factor TEAD1 and the ubiquitin ligase c-Cbl were identified as novel basal cell markers. Knockdown of either marker using siRNA in prostate cell lines led to decreased cell growth in PC3 and disrupted acinar formation in a 3D culture system of RWPE1. Analyses of prostate cancer tissue microarray staining established that increased protein levels of either marker were associated with decreased patient survival independent of other clinicopathological metrics. These data are consistent with basal features impacting on the development and clinical course of prostate cancers.
Collapse
Affiliation(s)
- J F Knight
- Department of Molecular Carcinogenesis, The Bob Champion Prostate Stem Cell Team, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - C J Shepherd
- Department of Molecular Carcinogenesis, The Bob Champion Prostate Stem Cell Team, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - S Rizzo
- Department of Molecular Carcinogenesis, The Bob Champion Prostate Stem Cell Team, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - D Brewer
- Department of Molecular Carcinogenesis, Cell Transformation Team, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - S Jhavar
- Department of Molecular Carcinogenesis, Cell Transformation Team, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
- Translational Cancer Genetics, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - A R Dodson
- Department of Pathology and Molecular Genetics, University of Liverpool, Duncan Building, Liverpool, UK
| | - C S Cooper
- Department of Molecular Carcinogenesis, Cell Transformation Team, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - R Eeles
- Translational Cancer Genetics, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - A Falconer
- Translational Cancer Genetics, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
- Department of Oncology, Charing Cross Hospital, London W6 8RF, UK
| | - G Kovacs
- Ruprecht-Karls-Universitat, Heidelberg Klinikum, Molekular Onkologie, Im Neuenheimer Feld 365, Heidelberg 69120, Germany
| | - M D Garrett
- Cancer Research UK Centre for Cancer Therapeutics, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - A R Norman
- Department of Medical Statistics, Royal Marsden NHS Trust, Sutton, Surrey SM2 5NG, UK
| | - J Shipley
- Department of Molecular Carcinogenesis, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| | - D L Hudson
- Department of Molecular Carcinogenesis, The Bob Champion Prostate Stem Cell Team, The Institute of Cancer Research, Sutton, Surrey SM2 5NG, UK
| |
Collapse
|
45
|
Abstract
Prostate epithelial stem cells (PSCs) are primed by the urogenital mesenchyme to initiate bud formation and branching morphogenesis, ultimately culminating in a glandular structure composed of luminal, basal and neuroendocrine cells. Identity of this cell has remained elusive however cell populations enriched for cells exhibiting stem cell characteristics express the stem cell markers CD133(+), alpha2beta1(hi), CD44 and Sca-1 along with embryonic stem cell factors including Oct-1, Nanog, Sox2 and nestin. Androgens are critical to prostate organogenesis and play a major role in normal prostate function and the development of prostate cancer. Cell lineage is another variable in the development of prostate cancer. This review discusses the embryonic prostate stem cell niche, normal prostate development, isolation and characterization of normal prostate and prostate cancer stem cells, and current concepts on the origin of prostate cancer.
Collapse
Affiliation(s)
- Susan Kasper
- Department of Urologic Surgery, A-1302 Medical Center North, Vanderbilt University Medical Center, 1161 21st Avenue South, Nashville, TN 37232-2765, USA.
| |
Collapse
|
46
|
Drewa T, Chlosta P. Re: Frans Debruyne, Arkadij A. Gres, Dmitrii L. Arustamov. Placebo-controlled dose-ranging phase 2 study of subcutaneously administered LHRH antagonist Cetrorelix in patients with symptomatic benign prostatic hyperplasia. Eur Urol 2008;54:170-80. Eur Urol 2008; 55:e36-7; author reply e38-9. [PMID: 18703271 DOI: 10.1016/j.eururo.2008.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2008] [Accepted: 08/01/2008] [Indexed: 10/21/2022]
|
47
|
Pearce-McCall D, Newman JP. Expectation of success following noncontingent punishment in introverts and extraverts. J Pers Soc Psychol 1986; 2:17. [PMID: 23815814 PMCID: PMC3701589 DOI: 10.1186/2162-3619-2-17] [Citation(s) in RCA: 207] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 06/25/2013] [Indexed: 12/14/2022]
Abstract
Recent findings indicate that extraverts are more likely than introverts to continue responding in the face of punishment and frustrating nonreward (Newman & Kosson, 1984; Tiggemann, Winefield, & Brebner, 1982). The current study investigates whether extraverts' expectations for success are, similarly, resistant to interruption and alteration. To test this hypothesis, 50 introverted and 50 extraverted male undergraduates were exposed to pretreatment with either a 50% level of noncontingent reward or a 50% level of noncontingent punishment. As predicted, there were significant Group X Pretreatment interactions on all dependent measures. In comparison to those introverts who received the punishment pretreatment, extraverts exposed to the same pretreatment placed larger wagers on their ability to succeed, and reported higher levels of perceived control. In addition, relative to their estimates for the pretreatment task, extraverts exposed to noncontingent punishment increased their expectation for success, whereas introverts exposed to noncontingent punishment decreased their performance expectations. No differences were observed between the two groups following pretreatment with noncontingent reward. The results suggest that extraverts are characterized by a distinctive reaction to punishment involving response facilitation as opposed to response inhibition.
Collapse
|