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Molecular Targeted Radiosensitizers

Molecular Targeted Radiosensitizers
Author: Henning Willers
Publisher: Springer Nature
Total Pages: 370
Release: 2020-08-10
Genre: Medical
ISBN: 3030497011
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Molecular Targeted Radiosensitizers: Opportunities and Challenges provides the reader with a comprehensive review of key pre-clinical research components required to identify effective radiosensitizing drugs. The book features discussions on the mechanisms and markers of clinical radioresistance, pre-clinical screening of targeted radiosensitizers, 3D radiation biology for studying radiosensitizers, in vivo determinations of local tumor control, genetically engineered mouse models for studying radiosensitizers, targeting the DNA damage response for radiosensitization, targeting tumor metabolism to overcome radioresistance, radiosensitizers in the era of immuno-oncology, and more. Additionally, the book features discussions on high-throughput drug screening, predictive biomarkers, pre-clinical tumor models, and the influence of the tumor microenvironment and the immune system, with a specific focus on the challenges radiation oncologists and medical oncologists currently face in testing radiosensitizers in human cancers. Edited by two acclaimed experts in radiation biology and radiosensitizers, with thirteen chapters contributed by experts, this new volume presents an in-depth look at current developments within a rapidly moving field, with a look at where the field will be heading and providing comprehensive insight into the framework of targeted radiosensitzer development. Essential reading for investigators in cancer research and radiation biology.

Radiosensitizers and Radiochemotherapy in the Treatment of Cancer

Radiosensitizers and Radiochemotherapy in the Treatment of Cancer
Author: Shirley Lehnert
Publisher: CRC Press
Total Pages: 552
Release: 2014-12-08
Genre: Medical
ISBN: 1439829020
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Radiosensitizers and Radiochemotherapy in the Treatment of Cancer catalogs and describes the mechanism of action for entities characterized as radiosensitizers. Developments in the biological and physical sciences have introduced new radiosensitizers and defined novel targets for radiosensitization. As a result, a book about radiosensitization must now address a huge range of topics, covering everything from molecular oxygen and high Z elements to monoclonal antibodies and complex phytochemicals. At the molecular level, the understanding of the molecular consequences of DNA damage and the DNA damage response have informed the development of targeted radiosensitizers and shed light on the mode of action of radiochemotherapy protocols of known clinical efficacy. In this book the mechanisms of action at the molecular and cellular level are described for documented radiosensitizers including, where applicable, a brief history of their clinical use and most recent clinical results. In addition, the clinical context is addressed including the importance of factors such as dose and dose rate, normal tissue toxicity, and drug delivery. Intuitively organized by topic and application, the book includes extensive illustrations, end-of-chapter summaries, and a wealth of references.

The Translational Machinery as a Target for Radiosensitization

The Translational Machinery as a Target for Radiosensitization
Author: Thomas John Hayman
Publisher:
Total Pages:
Release: 2013
Genre:
ISBN:
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Current approaches aimed at improving the efficacy of radiation as a cancer treatment modality involve the development and application of molecularly targeted radiosensitizers, a strategy that requires a thorough understanding of the fundamental processes comprising the cellular radioresponse. Recent data indicating that radiation modifies gene expression primarily through translational control rather than transcriptional events suggests that mRNA translation contributes to cell survival after irradiation. The overall goal of this project is to determine whether the regulatory/rate-limiting components of the translational machinery provide targets for tumor cell radiosensitization. The majority of translation in mammalian cells occurs in a cap-dependent manner and is highly dependent on eIF4E. As such, we investigated a regulatory role for eIF4E in cellular radiosensitivity. eIF4E knockdown enhanced the radiosensitivity of tumor but not normal cells. eIF4E knockdown inhibited the dispersal of radiation-induced [gamma]H2AX foci. Furthermore, radiation was found to increase the binding of >1000 unique mRNAs to eIF4E, many involved in DNA replication, recombination, and repair. S6 kinase 1 (S6K1), also an important regulatory component of the translational machinery, enhances the translation of specific mRNA subpopulations, independent from eIF4E, and mediates ribosome biogenesis. The role of S6K1 in determing cell survival after radiation was determined in several tumor cell lines and one normal cell line. S6K1 knockdown enhanced the radiosensitivity of all 3 tumor lines. In contrast S6K1 knockdown had no effect on the cellular radiosensitivity of the one normal line tested. The mechanistic target of rapamycin (mTOR) is a critical kinase in the regulation of gene translation and has been suggested as a potential target for radiosensitization. Importantly, it plays a major role in regulating eIF4E availability as well as S6K1 activity.

Textbook of Radiation Oncology

Textbook of Radiation Oncology
Author: Steven A. Leibel
Publisher:
Total Pages: 0
Release: 2004
Genre: Medical
ISBN: 9780721600260
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Thoroughly revised and updated, the 2nd Edition presents all of the latest advances in the field, including the most recent technologies and techniques. For each tumor site discussed, readers will find unparalleled coverage of multiple treatment plans, histology and biology of the tumor, its anatomic location and routes of spread, and utilization of specialized techniques. This convenient source also reviews all of the basic principles that underlie the selection and application of radiation as a treatment modality, including radiobiology, radiation physics, immobilization and simulation, high dose rate, intraoperative irradation, and more. Comprehensively reviews each topic, with a distinct clinical orientation throughout. Serves as a foundation for the basic principles that underlie the selection and application of radiation as a treatment modality, including radiobiology, radiation physics, immobilization and simulation, high dose rate, intraoperative irradation, and more. Guides readers through all stages of treatment application with step-by-step techniques for the assessment and implementation of radiotherapeutic options. Presents latest information on brachytherapy * 3-dimensional conformal treatment planning * sterotactic radiosurgery * and radiolabeled antibodies. Discusses the recent use of radiotherapy in the treatment of primary lymphoma, leukemia, multiple myeloma, and cancers of the prostate and central nervous system. Includes the latest AJCC staging system guidelines. Offers the latest advances in techniques, allowing you to deliver doses precisely to areas affected by malignancy and spare healthy tissue. Presents new chapters on the hottest topics including Three Dimensional Conformal Radiotherapy * Intensity Modulated Radiotherapy * Breathing Synchronized Radiotherapy * Plasma Cell Tumors: Multiple Myeloma and Solitary Plasmacytoma * Extracranial Stereotactic Radioablation * and [Imaging of the] Head and Neck * Thorax * Abdomen * and Pelvis.

Biomolecular Action of Ionizing Radiation

Biomolecular Action of Ionizing Radiation
Author: Shirley Lehnert
Publisher: CRC Press
Total Pages: 564
Release: 2007-10-24
Genre: Science
ISBN: 1420011928
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Embracing the transformation of radiation sciences by the recent surge of developments in molecular biology, this progressive text offers an up-to-date analysis of in vitro and in vivo molecular responses in the body induced by ionizing radiation. With a unique emphasis on medical physics applications, Biomolecular Action of Ionizi

Cancer Targeted Drug Delivery

Cancer Targeted Drug Delivery
Author: You Han Bae
Publisher: Springer Science & Business Media
Total Pages: 717
Release: 2013-08-31
Genre: Medical
ISBN: 1461478766
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This book was conceived from a simple question as to why cancer is so difficult to treat. Ultimately we want to find ways to cure cancers, but that may be an elusive dream at least with the technologies we have now and expect to have in the near future. This leads the question of whether it is possible to improve current cancer treatment methods, especially from the perspective of enhancing targeted drug delivery to tumors. This volume is designed to provide information related to the difficulties in treating cancers through targeted drug delivery, our current understanding of cancer biology, and potential technologies that might be used to achieve enhanced drug delivery to tumors. An ideal drug delivery system for treating cancers would maximize the therapeutic efficacy with minimal side effects in clinical applications. The seemingly improved anticancer efficacy of the current nanoparticle-based formulations needs to be viewed from the context of very poor success rates for translation to human applications. The results of in vitro cell culture models and small animal in vivo experiments have not been extrapolated to clinical applications. Finding the reasons for the lack of successful translation is required if we are to discover approaches to substantially extend the survival time of cancer patients, and hopefully identify cures. Cancer Targeted Drug Delivery: Elusive Dream describes some answers of achieving the so far elusive dream of treating cancers like other chronic diseases with therapies that focus using improved drug delivery systems designed to better align with the unique biological and physiological properties of cancer.

Radioprotectors

Radioprotectors
Author: Edward A. Bump
Publisher: CRC Press
Total Pages: 450
Release: 1997-12-29
Genre: Medical
ISBN: 9780849347566
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It is essential to minimize damage to normal tissues during radiation therapy and many strategies have been employed in finding the best methods for radioprotection. This book integrates chemical, biological, and clinical perspectives on these strategies and developments, providing a comprehensive treatise. It emphasizes new concepts in radioprotection, aiming to inspire further basic science and clinical progress in radioprotector research. Radioprotectors: Chemical, Biological, and Clinical Perspectives includes the following topics: Early research on radioprotectors WR-2721, an aminothiol prodrug, as a radioprotector New results with naturally occurring thiols Nitroxides as effective radioprotectors in vitro and in vivo Radioprotection observed with radical scavengers or antioxidants Bone marrow radioprotection with cytokines and biological modifiers Multiple mechanisms of altering radiation response by eicosanoids Vascular response to radiation and the importance of vascular damage to normal tissue Modifiers of radiation-induced apoptosis Survey of clinical trials with radioprotectors Radiation biologists and oncologists, cancer researchers, and toxicologists will benefit from the findings discussed and strategies for future research.

Brain Metastases from Primary Tumors Volume 1

Brain Metastases from Primary Tumors Volume 1
Author: M. A. Hayat
Publisher: Academic Press
Total Pages: 275
Release: 2014-04-03
Genre: Medical
ISBN: 0128010959
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With an annual rate of more than 12 million global diagnoses and 7.6 million deaths, the societal and economic burden of cancer cannot be overstated. Brain metastases are the most common malignant tumors of the central nervous system, yet their incidence appears to be increasing in spite of the advancement of cancer therapies. While much is known about primary cancers (including primary brain tumors), less work has been done to uncover the roots of metastatic disease. Brain Metastases from Primary Tumors Volume 1 fills that gap, serving as the first reference to focus primarily on the link between primary cancers and brain metastases. This link is explored for the most common cancer types – lung, breast, and melanoma. Additionally, biological background as well as therapy for CNS metastases is addressed. Age and gender related trends are also discussed, as is the use of biomarkers for early detection. The only comprehensive reference detailing the link between primary cancers and brain metastases Aids the target audience in determining the incidence of brain metastases in patients with a primary cancer Provided education about the potential use of biomarkers for early detection, diagnosis and prevention of the spread of primary cancer to the brain Documents temporal and gender-related trends in brain metastases from other cancers Edited work with chapters authored by leaders in the field around the globe – the broadest, most expert coverage available

Practical Radiation Oncology

Practical Radiation Oncology
Author: Supriya Mallick
Publisher: Springer Nature
Total Pages: 282
Release: 2019-11-25
Genre: Medical
ISBN: 9811500738
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This book addresses the most relevant aspects of radiation oncology in terms of technical integrity, dose parameters, machine and software specifications, as well as regulatory requirements. Radiation oncology is a unique field that combines physics and biology. As a result, it has not only a clinical aspect, but also a physics aspect and biology aspect, all three of which are inter-related and critical to optimal radiation treatment planning. In addition, radiation oncology involves a host of machines/software. One needs to have a firm command of these machines and their specifications to deliver comprehensive treatment. However, this information is not readily available, which poses serious challenges for students learning the planning aspect of radiation therapy. In response, this book compiles these relevant aspects in a single source. Radiation oncology is a dynamic field, and is continuously evolving. However, tracking down the latest findings is both difficult and time-consuming. Consequently, the book also comprehensively covers the most important trials. Offering an essential ready reference work, it represents a value asset for all radiation oncology practitioners, trainees and students.

Structure-activity Relationship Studies in Drug Development by NMR Spectroscopy

Structure-activity Relationship Studies in Drug Development by NMR Spectroscopy
Author: Atta-ur- Rahman
Publisher: Bentham Science Publishers
Total Pages: 221
Release: 2011
Genre: Science
ISBN: 1608051641
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"NMR (Nuclear Magnetic Resonance) Spectroscopy has found significant applications in drug discovery based on its capacity to map molecular interactions at the atomic level. Chemical shifts, cross relaxation, and exchange of protons are among the NMR parame"