Download or read book Enhancing T Cell Immunity in Tumor Immunotherapy written by Xiaozhou Fan and published by . This book was released on 2013 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cytotoxic T Lymphocyte Antigen 4 (CTLA-4) is a crucial inhibitory molecule to restrain T cell functions. CTLA-4 blockade with a monoclonal antibody (anti-CTLA-4) induces anti-tumor responses in a subset of patients and has been approved by the FDA as standard therapy for melanoma. We recently identified inducible costimulator (ICOS) as a crucial player in the antitumor effects of CTLA-4 blockade. We now show that concomitant CTLA-4 blockade plus ICOS engagement by tumor cell vaccines engineered to express ICOS-ligand enhanced anti-tumor immune responses in both quantity and quality and significantly improved rejection of established melanoma and prostate cancer in mice. This study provides strong evidence to support future combinatorial approaches incorporating anti-CTLA-4 plus ICOS engagement in the clinic. We explored another strategy to enhance anti-tumor response by targeting the migration of regulatory T cells into the tumor. We proposed certain chemokines and their cognate receptors play key roles in this process. Chemokine receptors CCR4 and CCR8 are preferentially expressed by regulatory T cells in the tumor where their ligands CCL1 and CCL17 are upregulated. CCL17 was able to induce specific migration of regulatory T cells from tumor-bearing mice, and we identified a CD11b + F4/80 + Gr-1 - population in the tumor as the major source of CCL17. With an in vivo migration assay and a bone marrow chimera model, we demonstrated that CCR4 is required for the migration of regulatory T cells to the vaccine site. Lastly, we found that transfer of small numbers of naive tumor-reactive CD4 T cells into lymphopenic recipients induces substantial T cell expansion, differentiation, and regression of large established tumors without the need for in vitro manipulation. Surprisingly, CD4 T cells developed cytotoxic activity, and tumor rejection was dependent on class II-restricted recognition of tumors by tumor-reactive CD4 T cells. Furthermore, blockade of the CTLA-4 on transferred CD4 T cells resulted in greater expansion of effector T cells, diminished accumulation of regulatory T cells, and superior antitumor activity. These findings suggest a novel potential therapeutic role for cytotoxic CD4 T cells and CTLA-4 blockade in cancer immunotherapy, and the potential advantages of differentiating tumor-reactive CD4 cells in vivo.
Download or read book Combinatorial Approaches to Enhance Anti Tumor Immunity Focus on Immune Checkpoint Blockade Therapy written by Patrik Andersson and published by Frontiers Media SA. This book was released on 2019-12-27 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The immune system harbors great potential for controlling and eliminating tumors. Recent developments in the field of immuno-oncology has led to unprecedented clinical benefits for a broad spectrum of solid tumors. However, immunotherapy (IT) approaches currently have several limitations including (i) low response rate; (ii) development of resistance and (iii) causing severe immune-related adverse effects (IrAEs), which underline the importance of adequate patient selection. Importantly, IT holds promising synergistic potential when combined with standard-of-care chemotherapy, radiotherapy (RT) and anti-angiogenic therapy (AAT) as part of multi-modal oncologic treatment regimes. Published data suggest that there are potential synergy between RT and AAT, which ultimately could help potentiate the response to IT. However, the complex interactions between RT and IT and/or AAT remain poorly understood. Many research questions including optimal timing, scheduling and dosing, as well as patient selection and side effects of combined therapy approaches, remain to be addressed. This Research Topic aims to give a comprehensive overview of the current field with particular emphasis on the future outlook of RT and AAT as complementary approaches to improve IT in solid tumors.
Download or read book Advances in Tumor Immunology and Immunotherapy written by Joseph D. Rosenblatt and published by Springer Science & Business Media. This book was released on 2013-10-25 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in understanding of fundamental immunology have created new insights into the dynamic interactions between tumors and the immune system. This includes new understanding of T- and B-cell interaction, immune inhibitory mechanisms including the biology of T regulatory cells, myeloid suppressor cells, and dendritic cell subsets. Enhanced understanding of mechanisms underlying T-cell anergy such as arginine deprivation, immunosuppressive cytokines, defective innate and interferon response pathways, and NKG2D downregulation have all provided new insight into suppression of anti-tumor immunity and tumor evasion. In addition to emerging understanding of tumor evasion, new immune targets such as CTLA4 blockade, NK stimulatory receptors, manipulation of the antigen processing and presentation, cytokine and costimulatory responses all provide new possibilities for enhancing anti-tumor immunity even in tumors previously felt to be resistant to immune attack. Several of these strategies have already been realized in the clinic. The volume will explore evolving paradigms in antigen presentation, dendritic cell biology, the innate response and immunosuppressive mechanisms, and emerging strategies for manipulation of the immune system for therapeutic benefit that have realized success in neuroblastoma, leukemia, melanoma, lung cancer, and allogeneic transplantation. Early successes as well as failures will be highlighted to provide a snapshot of the state of clinical immunotherapy with an eye to future possibilities such as combination therapies, adoptive T-cell transfer, and the retargeting of immune cells via T-cell receptor engineering.
Download or read book Developments in T Cell Based Cancer Immunotherapies written by Paolo A. Ascierto and published by Humana Press. This book was released on 2015-11-26 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume illustrates the salient aspects of cancer biology relevant to the successful implementation of immunotherapy. Topics include enhancement of antigen-specific immune responses by anti-cancer vaccines, modulation of the function of T cells within the tumor microenvironment, and the effects of genetic, epigenetic, developmental, and environmental determinants on T cell function. Other topics covered include the ex vivo expansion of T or other immune cells and their genetic modification or reprogramming to increase their ability to survive and expand when adoptively transferred back to the patients. Specific attention is devoted to the genetic manipulation of T cells through the introduction of re-directed T cell receptors, chimeric antibody receptors, and other genetic manipulation aimed at improving their effectiveness as anti-cancer agents. Furthermore, the revolutionary role of checkpoint inhibitors and their potential in combination with other immunotherapeutic approaches or with standard chemo and radiation therapy are extensively discussed.
Download or read book Cancer Immunotherapy at the Crossroads written by James H. Finke and published by Springer Science & Business Media. This book was released on 2003-11-24 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leading investigators and clinicians detail the different mechanisms used by tumors to escape and impair the immune system and then spell out possible clinical strategies to prevent or reverse tumor-induced immune dysfunction. The authors review the mechanisms of immune dysfunction and evasion mechanisms in histologically diverse human tumors, focusing on tumor-induced molecular defects in T cells and antigen-presenting cells (dendritic cells and tumors), that may serve as biomarkers for patient prognosis. They discuss the means by which these immune functions may be protected or restored in order to more effectively support the process of tumor rejection in situ. Cutting-edge techniques are outlined with the capacity to monitor the strength and quality of patients' immune responses using immunocytometry, MHC-peptide tetramers combined with apoptosis assay, ELISPOT assay, and detection of MHC-TAA peptide complexes on tumor cells.
Download or read book Co signal Molecules in T Cell Activation written by Miyuki Azuma and published by Springer Nature. This book was released on 2019-11-22 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book equips young immunologists and health professionals with a clear understanding of the fundamental concepts and roles of co-signal molecules and in addition presents the latest information on co-stimulation. The first part of the book is devoted to co-signal molecules and the regulation of T cells. Following an initial overview, subsequent chapters examine each co-signal molecule in turn and discuss the mechanisms by which co-signal molecules regulate the different types of T cell. The second part covers various clinical applications, including in autoimmune disease, neurological disorders, transplantation, graft-versus-host disease, and cancer immunotherapy. To date, co-stimulation blockade and co-inhibition blockade have shown beneficial effects and many additional clinical trials targeting co-signal molecules are ongoing. The mechanisms underlying these successful treatments are explained and the future therapeutic potential in the aforementioned diseases is evaluated. Co-signal Molecules in T Cell Activation will be a valuable reference guide to co-stimulation for basic and clinical researchers in the fields of both immunology and pharmaceutical science.
Download or read book Tumor Antigens Recognized by T Cells and Antibodies written by Hans J Stauss and published by CRC Press. This book was released on 2003-01-23 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent progress in fundamental tumor immunology has led to immunotherapy trials in patients with solid tumors and hematological malignancies. In the past, immunotherapy approaches were primarily based on enhancement of tumor immunity with cytokines and adjuvant therapy, without knowledge of relevant tumor antigens. The discovery of tumor antigens c
Download or read book Defects in T Cell Trafficking and Resistance to Cancer Immunotherapy written by Emmanuel Donnadieu and published by Springer. This book was released on 2016-08-30 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on recent advances in understanding T cells as key players in antitumor immune responses, and as a result T cell-based immunotherapy is starting to transform the treatment of advanced cancers. However, despite recent successes, many patients with cancer fail to respond to these treatments. Defective migration of T cells into and within tumors is considered as an important resistance mechanism to cancer immunotherapy.The volume includes three sections. The first section covers general knowledge about T cell trafficking during a normal immune response but also during tumor development. The second section provides an in-depth description of the different obstacles that prevent T cells from migrating and contacting tumor cells. The third section explores therapeutic strategies to improve trafficking of T cells into tumors and, thus, to enhance the effectiveness of cancer immunotherapy.
Download or read book Chimeric Antigen Receptor T Cell Therapies for Cancer E Book written by Daniel W. Lee and published by Elsevier Health Sciences. This book was released on 2019-11-30 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: From patient referral to post-therapy management, Chimeric Antigen Receptor (CAR) T-Cell Therapies for Cancer: A Practical Guide presents a comprehensive view of CAR modified T-cells in a concise and practical format. Providing authoritative guidance on the implementation and management of CAR T-cell therapy from Drs. Daniel W. Lee and Nirali N. Shah, this clinical resource keeps you up to date on the latest developments in this rapidly evolving area. - Covers all clinical aspects, including patient referral, toxicities management, comorbidities, bridging therapy, post-CAR monitoring, and multidisciplinary approaches to supportive care. - Includes key topics on associated toxicities such as predictive biomarkers, infections, and multidisciplinary approaches to supportive care. - Presents current knowledge on FDA approved CAR T-cell products as well as developments on the horizon. - Editors and authors represent leading investigators in academia and worldwide pioneers of CAR therapy.
Download or read book Tumor Induced Immune Suppression written by Dmitry I. Gabrilovich and published by Springer Science & Business Media. This book was released on 2014-02-10 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tumor-Induced Immune Suppression - Prospects and Progress in Mechanisms and Therapeutic Reversal presents a comprehensive overview of large number of different mechanisms of immune dysfunction in cancer and therapeutic approaches to their correction. This includes the number of novel mechanisms that has never before been discussed in previous monographs. The last decades were characterized by substantial progress in the understanding of the role of the immune system in tumor progression. Researchers have learned how to manipulate the immune system to generate tumor specific immune response, which raises high expectations for immunotherapy to provide breakthroughs in cancer treatment. It is increasingly clear that tumor-induced abnormalities in the immune system not only hampers natural tumor immune surveillance, but also limits the effect of cancer immunotherapy. Therefore, it is critically important to understand the mechanisms of tumor-induced immune suppression to make any progress in the field and this monograph provides these important insights.
Download or read book Guide to Immunotherapy written by Suzanne L. Walker and published by . This book was released on 2018-10 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cancer Immunology and Immunotherapy written by Glenn Dranoff and published by Springer Science & Business Media. This book was released on 2011-04-11 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interplay between tumors and their immunologic microenvironment is complex, difficult to decipher, but its understanding is of seminal importance for the development of novel prognostic markers and therapeutic strategies. The present review discusses tumor-immune interactions in several human cancers that illustrate various aspects of this complexity and proposes an integrated scheme of the impact of local immune reactions on clinical outcome. Current active immunotherapy trials have shown durable tumor regressions in a fraction of patients. However, clinical efficacy of current vaccines is limited, possibly because tumors skew the immune system by means of myeloid-derived suppressor cells, inflammatory type 2 T cells and regulatory T cells (Tregs), all of which prevent the generation of effector cells. To improve the clinical efficacy of cancer vaccines in patients with metastatic disease, we need to design novel and improved strategies that can boost adaptive immunity to cancer, help overcome Tregs and allow the breakdown of the immunosuppressive tumor microenvironment.
Download or read book Innate Immune Regulation and Cancer Immunotherapy written by Rong-Fu Wang and published by Springer Science & Business Media. This book was released on 2012-02-02 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Innate and adaptive immunity play important roles in immunosurveillance and tumor destruction. However, increasing evidence suggests that tumor-infiltrating immune cells may have a dual function: inhibiting or promoting tumor growth and progression. Although regulatory T (Treg) cells induce immune tolerance by suppressing host immune responses against self- or non self-antigens, thus playing critical roles in preventing autoimmune diseases, they might inhibit antitumor immunity and promote tumor growth. Recent studies demonstrate that elevated proportions of Treg cells are present in various types of cancers and suppress antitumor immunity. Furthermore, tumor-specific Treg cells can inhibit immune responses only when they are exposed to antigens presented by tumor cells. Therefore, Treg cells at tumor sites have detrimental effects on immunotherapy directed to cancer.
Download or read book Immunotherapy in Translational Cancer Research written by Laurence J. N. Cooper and published by John Wiley & Sons. This book was released on 2018-05-01 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to state-of-the-art cancer immunotherapy in translational cancer research A volume in the Translational Oncology series, Immunotherapy in Translational Cancer Research explores the recent developments in the role that immunotherapy plays in the treatment of a wide range of cancers. The editors present key concepts, illustrative examples, and suggest alternative strategies in order to achieve individualized targeted therapy. Comprehensive in scope, Immunotherapy in Translational Cancer Research reviews the relevant history, current state, and the future of burgeoning cancer-fighting therapies. The book also includes critical information on drug development, clinical trials, and governmental resources and regulatory issues. Each chapter is created to feature: development of the immunotherapy; challenges that have been overcome in order to scale up and undertake clinical trials; and clinical experience and application of research. This authoritative volume is edited by a team of noted experts from MD Anderson Cancer Center, the world’s foremost cancer research and care center and: Offers a comprehensive presentation of state-of-the-art cancer immunotherapy research that accelerates the pace of clinical cancer care Filled with the concepts, examples, and approaches for developing individualized therapy Explores the breath of treatments that reflect the complexity of the immune system itself Includes contributions from a panel international experts in the field of immunotherapy Designed for physicians, medical students, scientists, pharmaceutical executives, public health and public policy government leaders and community oncologists, this essential resource offers a guide to the bidirectional interaction between laboratory and clinic immunotherapy cancer research.
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cutaneous Melanoma written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Basics of Cancer Immunotherapy written by Haidong Dong and published by Springer. This book was released on 2018-01-05 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides patients and their physicians (especially “non-oncologist” health care providers) with a clear and concise introduction to cancer immunotherapy, which, unlike traditional forms of cancer therapy, acts by boosting the patient’s own immune system to fight cancer. The unique features of cancer immunotherapy make its management, monitoring and side-effects different from those of traditional cancer therapy. Especially novel are the side effects of cancer immunotherapy, necessitating greater awareness for both patients and physicians in order to minimize complications of therapy. The patient-friendly, concise, easy-to-understand, and up-to-date knowledge presented in this book will inform patients about the benefits and risks of cancer immunotherapy, and help them and their care providers to understand how immunotherapy would control their unique disease. Researchers and academic professionals in the field of cancer immunotherapy will also find clear and useful information to help them communicate with patients or address unresolved problems. Some key features of the book are: Expertise. All editors and authors are scientists and oncologists specializing in cancer immunotherapy, and are involved in scientific discovery from the early stage of immune-checkpoint inhibitors to today’s daily patient care. Their insights, expertise and experience guarantee the high quality and authority in the science, medicine and practice of cancer immunotherapy. Patient-friendly. This book is written for cancer patients in order to meet their needs when considering immunotherapy. As an educational tool, this book will help the reader balance the risks and benefits based on both science and clinical facts, and therefore to make the best choice in receiving or withdrawing from immunotherapy. Disease Specificity. Cancer is a complicated disease involving multiple stages and pathology. Its response to immunotherapy is individualized and varies depending on cancer types. The authors’ expertise in treating different types of cancers, including melanoma, lung, kidney, bladder, and lymphoma, provides disease-specific insights in applying immunotherapy to each disease.
