Download or read book In Pursuit of Prostate Cancer Stem Cells written by and published by . This book was released on 2007 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, various human tumors have been shown to contain cancer stem cells. These cells, although rare, appear to be the only cells that can regenerate tumor and mediate metastasis. Therefore, these rare cancer stem cells may be the only cells that actually matter to a tumor and to therapeutic interventions. Of great interest, these putative cancer stem cells preferentially express markers that are expressed on normal stem/progenitor cells. Prostate cancer (PCa) stem cells have not been definitively identified. Recently, I identified several populations of PCa stem/progenitor cells with different tumorigenicities and primitiveness in human PCa xenografts and cell lines. In this study, we seek to reevaluate the relevancy of my findings in human PCa samples. At present, we have worked with 25 human PCa samples of varying Gleason grades to set up tumorigenicity assays to test tumorigenic potential of CD133 and CD44-positive cells. Importantly, we have performed our homework in terms of fine-tuning conditions to give us prostatospheres and establish primary xenografts in order to carry out our proposed experiments. Preliminary in vitro experiments indicate that CD133 could mark self-renewing PCa stem-like cells in primary PCa samples. We currently have a number of tumorigenicity experiments in incubation and expect to obtain a readout within the next couple of months. We also expect to begin studies on the invasive and metastatic potentials of the populations sorted for our markers of interest in the near future.
Download or read book Stem Cells and Prostate Cancer written by Scott D. Cramer and published by Springer Science & Business Media. This book was released on 2013-04-12 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent evidence demonstrates that normal prostate tissue contains stem cells. There is also accumulating evidence that prostate cancer contains a population of cells with stem cell-like characteristics referred to as cancer stem cells, or tumor initiating cells. Both the normal prostate stem cell and cancer stem cell populations have important implications for the generation, therapeutic targeting, and prevention of prostate cancer. The purpose of this book is to explore the role of stem cells in prostate cancer, which is becoming an increasingly hot trend in cancer research.
Download or read book Prostate Cancer Stem Cells written by Benjamin Peter Sharpe and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Regulators of Prostate Cancer Stem Cells and Tumor Aggressiveness written by and published by . This book was released on 2016 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cancer Stem Cells New Horizons in Cancer Therapies written by Surajit Pathak and published by Springer Nature. This book was released on 2020-10-17 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the recent developments in the therapeutic implications of cancer stem cells for the effective diagnosis, prognosis, and treatment of cancer. It summarizes the various stem cells of common cancers including colon, pancreas, lungs, prostate, melanoma, and glioblastoma, and reviews the potential role of cancer stem cells in tissue aggressiveness, examining the functional contribution of cancer stem cells in the establishment and recurrence of cancerous tumors. Further, it explores the potential of cancer stem cells as novel therapeutic targets for the treatment and prevention of tumor progression. The book also discusses the various approaches for detecting, isolating, and characterizing different cancer stem cells and signaling pathways that control their replication, survival, and differentiation. Lastly, it explores the key features and mechanisms of drug resistance, chemo-resistance, and radio-resistance in cancer stem cells to improve therapeutic rationale.
Download or read book The Influence of Phytochemicals on Cancer Stem Cells in Prostate Cancer written by Lili Wang and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic Reprogramming and Vulnerabilities of Prostate Cancer Stem Cells Independent of Epithelial mesenchymal Transition written by and published by . This book was released on 2014 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Lentiviral Vectors for the Tracking of Prostate Cancer Stem Cells written by and published by . This book was released on 2008 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cancer Stem Cells written by Stanley Shostak and published by BoD – Books on Demand. This book was released on 2011-03-22 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cancer Stem Cells Theories and Practice does not 'boldly go where no one has gone before!' Rather, Cancer Stem Cells Theories and Practice boldly goes where the cutting edge of research theory meets the concrete challenges of clinical practice. Cancer Stem Cells Theories and Practice is firmly grounded in the latest results on cancer stem cells (CSCs) from world-class cancer research laboratories, but its twenty-two chapters also tease apart cancer's vulnerabilities and identify opportunities for early detection, targeted therapy, and reducing remission and resistance.
Download or read book POTENTIAL EFFECT OF BIOACTIVE written by Sze-Ue Luk and published by Open Dissertation Press. This book was released on 2017-01-24 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "The Potential Effect of Bioactive Food Supplements in Targeting Prostate Cancer Stem Cells" by Sze-ue, Luk, 陸施妤, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4322379 Subjects: Tocotrienol Proteoglycans Cancer cells Stem cells Prostate - Cancer - Chemoprevention Prostate - Cancer - Animal models
Download or read book Advances in Prostate Cancer written by Gerhard Hamilton and published by IntechOpen. This book was released on 2013-01-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prostate cancer is one of the most common types of cancer in men and its treatment was constricted to surgery for confined state and androgen ablation for advanced disease until new options have become available. The present book covers a broad range of novel aspects of prostate cancer diagnosis, treatment and patient care, as well as new research on relevant cell biology. In detail, this special volume focusses on supportive modalities for prostate cancer patients, appropriate selection of novel therapeutic regimens, including inhibitors of steroidal synthesis, cytotoxic agents, as well as intermittent androgen suppression and the roles of prostate cancer stem cells and inflammatory processes.
Download or read book Prostate Cancer Stem Cells and Their Involvement in Metastasis written by Hangwen Li and published by . This book was released on 2010 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recently resurrected cancer stem cell (CSC) theory sheds new light on understanding tumor biology. Most solid tumors have now been shown to contain CSCs, i.e., stem cell-like cancer cells. These cells, although generally rare, appear to be highly tumorigenic and may be the cells that drive tumor formation, maintain tumor homeostasis, and mediate tumor metastasis. In order to test whether any given human tumor cell population has CSC properties, the relatively enriched single tumor cells have to be put into a foreign microenvironment in a recipient animal to test their tumorigenic potential. Furthermore, various in vitro assays can be performed to demonstrate that the presumed CSCs have certain biological properties normally associated with the stem cells (SCs). Herein, I first present a comprehensive review of the experimental methodologies that our lab has been using in assaying putative prostate cancer (PCa) SCs in culture, xenograft tumors, and primary tumor samples. Clonal morphology is one of the critical properties of cultured cancer cells that has been largely ignored. Interestingly, long term-cultured human epithelial cancer cells form holoclones, meroclones, and paraclones, and tumor cell holoclones have been hypothesized to harbor stem-like cells. Using PC3 human prostate carcinoma cells as a model, we provide direct experimental evidence that tumor cell holoclones contain stem-like cells that can initiate serially transplantable tumors. Importantly, holoclones derived from either cultured PC3 cells or holoclone-initiated tumors can be serially passaged and regenerate all three types of clones. In contrast, meroclones and paraclones cannot be continuously propagated and fail to initiate tumor development. Phenotypic characterizations reveal high levels of CD44, [alpha]2[beta]1 integrin, and [beta]-catenin expression in holoclones, whereas meroclones and paraclones show markedly reduced expression of these markers. These observations have important implications in understanding morphologic heterogeneities and tumorigenic hierarchies in human epithelial cancer cells. PCa metastasis represents the worst outcome, and, if unchecked, will eventually kill the patient. Although many PCa cell-intrinsic molecules and end-organ factors have been implicated in the metastatic dissemination of PCa cells, the role of primary tumor microenvironment and the nature of the metastatic PCa cells remain poorly defined. By establishing a reliable and quantifiable experimental PCa metastasis model in NOD/SCID mice, we show that PCa cells implanted orthotopically (i.e., in the prostate) metastasize much more extensively and widely than those implanted ectopically (i.e., subcutaneously or s.c). Microarray-based gene expression profiling reveals that the orthotopically implanted human PCa cells prominently overexpress not only several classes of molecules involved in proteolysis/invasion/angiogenesis and inflammation, but also numerous developmental and SC regulating genes. These latter observations suggest that the orthotopic microenvironment (i.e. mouse prostate) appears to be promoting the manifestation of CSC phenotypes and these CSCs might be involved in enhanced metastasis in the orthotopic microenvironment and later distant organ metastasis. In support, shRNA-mediated knockdown in many metastatic and CSC genes greatly inhibits PCa cell metastasis. Importantly, PCa cells that express high levels of osteopontin (OPN) or CD24, when prospectively purified out and used in spontaneous metastasis assays, demonstrate high metastatic capacities characteristic of metastatic CSCs. In sharp contrast, PCa cells negative for OPN and CD24 expression show little metastatic property. Finally, we provide multiple pieces of additional evidence that metastatic/metastasizing PCa cells possess CSC properties.
Download or read book Immunogenic and Immunosuppressive Properties of Prostate Cancer Stem Cells Isolated from the TRAMP Mouse Model written by Elena Jachetti and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prostate Cancer Cells written by Zongbing You and published by Nova Science Publishers. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes eight chapters of original research articles and six chapters of review articles, encompassing the latest advancements in detection, growth and treatment of prostate cancer. Detection of prostate cancer in human patients has been well established using prostate-specific antigen as a marker and a variety of imaging tools. However, for laboratory studies particularly in preclinical animal studies, such tools are still being developed. This book introduces novel imaging methods, such as bioluminescent imaging, chemiluminescence, and magnetic resonance imaging. Prostate cancer stem cells are emerging as a new focus of research. How to detect cancer stem cells and how to culture them are described in details herein. This book highlights several studies in exploring some unknown aspects of prostate cancer.
Download or read book Comparative Analysis of Cancer Stem Cells in Metastatic Prostate and Colon Cancers written by Aysenur Akoglu and published by . This book was released on 2011 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identifying and Understanding the Functional Significance of Cancer Stem Cells in Prostate and Pancreatic Cancer Initiation and Chemoresistance written by Antreas Agop Hindoyan and published by . This book was released on 2013 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The functional heterogeneity of cancer phenotypes and responses to therapeutics is a huge obstacle to clinical cures and an intense area of study. A relatively new hypothesis posits the existence of a subpopulation of tumor cells, termed cancer stem cells, which are primarily responsible for tumor propagation and resistance to therapy. Identification of such cells may be important to develop targeted therapies for more effective cancer treatment. This dissertation focuses on the validation and functional study of cancer stem cells associated with human prostate and pancreatic cancers. By leveraging the fact that surgical castration leads to enrichment of stem/progenitor cells in the prostate, we idenitifed CD166 as a novel marker for prostate stem cells. We show that CD166 can further enrich and refine the established prostate stem/progenitor cell and cancer stem cell population in both murine and human systems. While genetic deletion of CD166 would not inhibit the development of the prostate gland or the formation of prostate cancer in our genetically engineered model systems, this protein may serve as an attractive marker for identifying and targeting prostate cancer stem cells. Further attempts were made at identifying stem/progenitor populations for prostate and pancreatic cancer through various discovery and targeted approaches. We found that Lgr5, a marker of stem cells in the gut and skin, is not expressed in prostate and pancreatic epithelial tissue, but only in prostatic stroma. Novel surface markers such as CD138 were found to be highly upregulated in pancreatic tumors, but specificity for cancer stem cells was lacking. Lastly, we studied the functional role of cancer stem cells in gemcitabine therapy resistance in a human pancreatic cancer model. We found that the PI3K and ubiquitin-mediated proteosomal degradation pathways can be used to stratify gemcitabine treatment response in patient tumors. Inhibition of Skp2 expression and therapeutic treatment with PI3K inhibitors proved to be effective sensitiziers to gemcitabine treatment. Importantly, cancer stem cell content and function did not mediate gemcitabine relapse. As such, our studies reveal the cancer stem cell paradigm may be more complicated and cancer context-dependent, and must be rigorously functionally proven prior to clinical adoption.
Download or read book Investigating the Properties of Cancer Stem Cells and Epithelial to Mesenchymal Transition in Human Prostate Cancer written by N. L. Dunning-Foreman and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
