Download or read book Role of Dnajb6 in Esophageal Squamous Cell Carcinoma written by Zhuoyou Yu and published by Open Dissertation Press. This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Role of DNAJB6 in Esophageal Squamous Cell Carcinoma" by Zhuoyou, Yu, 余卓由, 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. Abstract: Esophageal cancer (EC), which is geographically diverse, has only a 10.7% five-year survival rate. One of the histologic forms, esophageal squamous cell carcinoma (ESCC), in Hong Kong accounts for 81.5% of the total EC cases and its five-year survival rate is only 14%, due to its high frequency of metastasis. In our previous studies, functional complementation study of chromosome 9 defects led to the discovery of a novel tumor suppressor gene, Deleted in Esophageal Cancer 1 (DEC1), mapping to 9q32. DEC1 was shown to reduce tumorigenicity in a mouse model and its expression was shown to be associated with lymph node metastasis, early onset of ESCC, and familial ESCC development in a tissue microarray (TMA) study. Moreover, DNAJ (Hsp40) homologue subfamily B member 6 (DNAJB6), a molecular co-chaperone protein and the focus of the current study, was identified as a DEC1-interacting protein through a yeast two-hybrid screening. The interaction was further confirmed by the GST pull-down assay and co-localization studies. Using a TMA constructed with ESCC tissues from Hong Kong, the clinical relevance of DNAJB6 expression was demonstrated. In the present study, the role of DNAJB6 in ESCC was investigated using cell line-based in vivo and in vitro studies. DNAJB6 was shown to be down-regulated in ESCC cell lines. The two isoforms of DNAJB6 have distinct subcellular localizations, with DNAJB6a mainly localized to the nucleus and DNAJB6b diffused throughout the cell. Existence of a functional nuclear localization signal peptide and a functional nuclear export signal peptide was verified in DNAJB6a and DNAJB6b, respectively. In vitro evidence of possible DNAJB6a truncation was found. In vivo subcutaneous nude mice tumorigenicity assays showed that over-expression of DNAJB6a, but not DNAJB6b, suppresses tumor growth at the primary site, while DNAJB6a silencing enhances tumor growth. The suppressive effect of DNAJB6a depends on nuclear localization of the protein and the HPD tripeptide motif in the N-terminal J domain. In vitro function studies show that DNAJB6a over-expression impairs cell proliferation by suppressing G1/S transition. AKT1 phosphorylation is down-regulated in DNAJB6a over-expressed cells, leading to up-regulation of p27KIP1 protein expression and down-regulation of cyclin E1 protein expression, the G1/S transition promoter, in an AKT1-dependent manner. DNAJB6a silencing results in the opposite effect. Over-expression of DNAJB6b, but not DNAJB6a, instead suppresses lung colonization in an experimental metastasis assay, and prolongs survival of the mice. Silencing of DNAJB6a in immortalized normal esophageal epithelial cells initially induces a senescence-like phenotype with greatly reduced proliferation possibly due to oncogenic stress from up-regulation of AKT1 phosphorylation and cyclin E1 protein expression, but promotes EMT-like molecular alterations by up-regulating STAT3 phosphorylation and TWIST1 protein expression and resumes proliferation after prolonged culture. In summary, these results suggest that DNAJB6 plays a critical role in ESCC initiation, development, and metastasis and provides valuable insight into the understanding of ESCC tumorigenesis and metastasis. This suggests its usefulness as a biomarker candidate for detecting early ESCC tumor initiation. DOI: 10.5353/th_b5177324 Subjects: Esophagus - Cancer - Genetic aspects
Download or read book Role of DNAJB6 in Esophageal Squamous Cell Carcinoma written by 余卓由 and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Esophageal Cancer written by Nabil F. Saba and published by Springer Nature. This book was released on 2019-11-30 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this very successful book documents the latest progress in the prevention, diagnosis and treatment of esophageal cancer and includes additional sections covering novel targeted therapeutic approaches, immunotherapy and palliative and nutritional support for patients. Furthermore, the sections covering epidemiology, molecular biology, pathology, staging and radiologic and endoscopic assessments have been thoroughly updated and expanded. The principles of surgical resection, radiation therapy and systemic therapy are reviewed and attention is paid to the multidisciplinary approaches to the management of early stage cervical, thoracic, distal and junctional tumors. Updated information is also provided on the treatment of metastatic and recurrent disease as well as approaches that may impact future care, such as chemoprevention. Esophageal Cancer: Prevention, Diagnosis and Therapy will assist specialists from various disciplines, including surgery, radiation therapy, gastroenterology, medical oncology and palliative medicine, in delivering optimal, up-to-date care to the benefit of patients.
Download or read book Heat Shock Proteins in Cancer written by Stuart K. Calderwood and published by Springer Science & Business Media. This book was released on 2007-09-09 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat shock proteins are emerging as important molecules in the development of cancer and as key targets in cancer therapy. These proteins enhance the growth of cancer cells and protect tumors from treatments such as drugs or surgery. However, new drugs have recently been developed particularly those targeting heat shock protein 90. As heat shock protein 90 functions to stabilize many of the oncogenes and growth promoting proteins in cancer cells, such drugs have broad specificity in many types of cancer cell and offer the possibility of evading the development of resistance through point mutation or use of compensatory pathways. Heat shock proteins have a further property that makes them tempting targets in cancer immunotherapy. These proteins have the ability to induce an inflammatory response when released in tumors and to carry tumor antigens to antigen presenting cells. They have thus become important components of anticancer vaccines. Overall, heat shock proteins are important new targets in molecular cancer therapy and can be approached in a number of contrasting approaches to therapy.
Download or read book Heat Shock Proteins in Inflammatory Diseases written by Alexzander A. A. Asea and published by Springer Nature. This book was released on 2021-10-13 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Heat Shock Proteins in Inflammatory Diseases provides the most comprehensive highlight and insight of the expression, function and therapeutic activity of Heat Shock Proteins in inflammatory diseases including sepsis, psoriasis, neurodegenerative diseases, cancers, viral infection and autoimmune rheumatic diseases. Using an integrative approach, the contributors provide a synopsis of the most current updates on the state of HSP in inflammatory diseases. Key basic and clinical research laboratories from major universities, academic medical hospitals, biotechnology and pharmaceutical laboratories around the world have contributed chapters that review present research activity and importantly project the field into the future. The book is a must read for graduate students. medical students, basic science researchers and postdoctoral scholars in the fields of Cancer Biology, Oncology, Translational Medicine, Clinical Research, Biotechnology, Cell & Molecular Medicine, Pharmaceutical Scientists and Researchers involved in Drug Discovery.
Download or read book Ferroptosis in Health and Disease written by Daolin Tang and published by Springer Nature. This book was released on 2023-11-29 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated and expanded volume gives new insights on ferroptosis – an iron-dependent form of non-apoptotic cell death. The collection of chapters discusses the two major pathways through which ferroptosis can occur: the extrinsic or transporter-dependent pathway and the intrinsic or enzyme-regulated pathway. Readers will gain an understanding of the multiple levels, on which this special cell death is regulated. Hence, the contributions will take a closer look at epigenetic, transcriptional, posttranscriptional and posttranslational layers. Among the described regulators and transcription factors are GPX4, ACSL4 and NFE2L2. This edited volume collects reviews related to current knowledge on the integrated molecular machinery of ferroptosis, thereby also describing how dysregulated ferroptosis is involved in human diseases.
Download or read book Ferroptosis in cancer and beyond written by Yanqing Liu and published by Frontiers Media SA. This book was released on 2023-02-06 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Roles of Circular RNAs in the Tumor Functions and Potential Applications written by Mingli Liu and published by Frontiers Media SA. This book was released on 2022-03-02 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Implications of Ferroptosis related Genes to the Genetics of Cancer Development written by Lian Xiang Luo and published by Frontiers Media SA. This book was released on with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemotherapy in Esophageal Cancer written by Jiang Chen and published by Frontiers Media SA. This book was released on 2023-12-28 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Esophageal cancer is one of the most common malignancies of the digestive system with a high mortality rate and poor prognosis. It has been found to be the sixth leading cause of cancer-related deaths worldwide. This is due to the challenges associated with early detection due to the lack of specific symptoms, causing the majority of patients to be diagnosed at an advanced stage. The standard treatment for patients is concurrent chemoradiotherapy (CCRT) specifically from unresectable esophageal cancer patients. The 5-year survival rate for patients receiving CCRT has been found to be approximately 10-30%, primarily due to local tumor recurrence and distant metastasis. Therefore, further studies are required for the identification of diagnostic tools to improve the survival rate and prognosis of the disease.
Download or read book HSF1 and Molecular Chaperones in Biology and Cancer written by Marc Laurence Mendillo and published by Springer Nature. This book was released on 2020-04-15 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protein homeostasis, or “Proteostasis”, lies at the heart of human health and disease. From the folding of single polypeptide chains into functional proteins, to the regulation of intracellular signaling pathways, to the secreted signals that coordinate cells in tissues and throughout the body, the proteostasis network operates to support cell health and physiological fitness. However, cancer cells also hijack the proteostasis network and many of these same processes to sustain the growth and spread of tumors. The chapters in this book are written by world experts in the many facets of the proteostasis network. They describe cutting-edge insights into the structure and function of the major chaperone and degradation systems in healthy cells and how these systems are co-opted in cancer cells and the cells of the tumor microenvironment. The chapters also cover therapeutic interventions such as the FDA-approved proteasome inhibitors Velcade and Krypolis as well as other therapies currently under clinical investigation to disarm the ability of the proteostasis network to support malignancy. This compendium is the first of its kind and aims to serve as a reference manual for active investigators and a primer for newcomers to the field. This book is dedicated to the memory of Susan Lindquist, a pioneer of the proteostasis field and a champion of the power of basic scientific inquiry to unlock the mechanisms of human disease. The chapter “Reflections and Outlook on Targeting HSP90, HSP70 and HSF1 in Cancer: A Personal Perspective” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Download or read book Whole Slide Imaging written by Anil V. Parwani and published by Springer Nature. This book was released on 2021-10-29 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides up-to-date and practical knowledge in all aspects of whole slide imaging (WSI) by experts in the field. This includes a historical perspective on the evolution of this technology, technical aspects of making a great whole slide image, the various applications of whole slide imaging and future applications using WSI for computer-aided diagnosis The goal is to provide practical knowledge and address knowledge gaps in this emerging field. This book is unique because it addresses an emerging area in pathology for which currently there is only limited information about the practical aspects of deploying this technology. For example, there are no established selection criteria for choosing new scanners and a knowledge base with the key information. The authors of the various chapters have years of real-world experience in selecting and implementing WSI solutions in various aspects of pathology practice. This text also discusses practical tips and pearls to address the selection of a WSI vendor, technology details, implementing this technology and provide an overview of its everyday uses in all areas of pathology. Chapters include important information on how to integrate digital slides with laboratory information system and how to streamline the “digital workflow” with the intent of saving time, saving money, reducing errors, improving efficiency and accuracy, and ultimately benefiting patient outcomes. Whole Slide Imaging: Current Applications and Future Directions is designed to present a comprehensive and state-of the-art approach to WSI within the broad area of digital pathology. It aims to give the readers a look at WSI with a deeper lens and also envision the future of pathology imaging as it pertains to WSI and associated digital innovations.
Download or read book RNA and RNA Modification in the Pathogenesis Diagnosis and Treatment of Cancers written by Dong-Hua Yang and published by Frontiers Media SA. This book was released on 2022-11-23 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Biology and Pathogenicity of Mycoplasmas written by Shmuel Razin and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: was the result of the efforts of Robert Cleverdon. The rapidly developing discipline of molecular biology and the rapidly expanding knowledge of the PPLO were brought together at this meeting. In addition to the PPLO specialists, the conference invited Julius Marmur to compare PPLO DNA to DNA of other organisms; David Garfinkel, who was one of the first to develop computer models of metabolism; Cyrus Levinthal to talk about coding; and Henry Quastler to discuss information theory constraints on very small cells. The conference was an announcement of the role of PPLO in the fundamental understanding of molecular biology. Looking back 40-some years to the Connecticut meeting, it was a rather bold enterprise. The meeting was international and inter-disciplinary and began a series of important collaborations with influences resonating down to the present. If I may be allowed a personal remark, it was where I first met Shmuel Razin, who has been a leading figure in the emerging mycoplasma research and a good friend. This present volume is in some ways the fulfillment of the promise of that early meeting. It is an example of the collaborative work of scientists in building an understanding of fundamental aspects of biology.
Download or read book Myopathology written by Balan Louis Gaspar and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all aspects of basic, essential, recent advances and controversies in myopathology. The major emphasis is on diagnostic myopathology of muscular dystrophies, inflammatory myopathies, mitochondrial myopathies, metabolic myopathies, congenital myopathies, myopathies of miscellaneous etiology, neurogenic and neuromuscular junction disorders, the goal being to broaden readers' understanding of individual disease subgroups. The book also contains all the essential details needed to establish a neuromuscular lab, making it especially relevant for laboratory technical staff and research scholars.
Download or read book 1835 1847 written by Sebastian Hensel and published by . This book was released on 1882 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Shock Protein 60 in Human Diseases and Disorders written by Alexzander A. A. Asea and published by Springer Nature. This book was released on 2019-10-31 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Heat Shock Protein 60 in Human Diseases and Disorders provides the most comprehensive review on contemporary knowledge on the role of HSP60 in human diseases and disorders. Using an integrative approach, the contributors provide a synopsis of novel mechanisms and signal transduction pathways. To enhance the ease of reading and comprehension the book has further been subdivided into various section including; Section I: Biomolecular Aspects of HSP60; Section II: HSP60 and Cancer; Section III: HSP60 and Inflammatory Diseases and Disorders; Section IV: HSP60 and Cardiovascular Diseases and Disorders; Section V: HSP60 and Neurological and Neurosciences; Section VI: Biomolecular Aspects of HSP60; Section VII: HSP60 and Skeletal Muscle Diseases and Disorders; and Section VIII: HSP60 in Human Health. Key basic and clinical research laboratories from major universities, academic medical hospitals, biotechnology and pharmaceutical laboratories around the world have contributed chapters that review present research activity and importantly project the field into the future. The book is a must read for graduate students. medical students, basic science researchers and postdoctoral scholars in the fields of Translational Medicine, Clinical Research, Human Physiology, Biotechnology, Neurology & Neuroscience, Oncology, Cardiovascular Disease, Skeletal Muscle Diseases and Disorders, Cell & Molecular Medicine, Pharmaceutical Scientists and Researchers involved in Drug Discovery.
