Download or read book The Role of Microenvironment in the Control of Tumor Angiogenesis written by Domenico Ribatti and published by Springer. This book was released on 2016-02-09 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work describes the importance of tumor microenvironment in favouring tumor progression and angiogenesis. Under physiological conditions, angiogenesis is dependent on the balance of positive and negative angiogenic modulators within the vascular microenvironment and requires the functional activities of a number of molecules, including angiogenic factors, extracellular matrix proteins, adhesion molecules and proteolytic enzymes. In normal tissues, vascular quiescence is maintained by the dominant influence of endogenous angiogenesis inhibitors over angiogenic stimuli. Tumor angiogenesis is linked to a switch in the balance between positive and negative regulators, and mainly depends on the release by inflammatory or neoplastic cells of specific growth factors for endothelial cells, that stimulate the growth of the blood vessels of the host or the down-regulation of natural angiogenesis inhibitors. In particular, the inflammatory infiltrate may contribute to tumor angiogenesis, and there are many reports of associations between tumor inflammatory infiltrate, vascularity and prognosis. New therapeutic approaches have been developed with the aim to control tumor angiogenesis through targeting of different components of tumor microenvironment.
Download or read book Tumor Microenvironment Regulation of Tumor Expansion written by Domenico Ribatti and published by Academic Press. This book was released on 2021-04-04 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tumor Microenvironment Regulation of Tumor Expansion is a practical guide to understand and perform research on tumor microenvironments, and to support related clinical decisions. Tumor progression is linked to an imbalance between positive and negative regulators, and mainly depends on the release of specific growth factors by inflammatory or neoplastic cells. Inflammatory infiltrate contributes to tumor progression and the metastatic process, and there are many reports of associations between tumor inflammatory infiltrate, progression, and prognosis. Understanding different contexts of organs is a key factor in improving treatment outcome, especially in new therapeutic treatments targeting components of the tumor microenvironment. This book is a valuable resource for cancer researchers, clinicians, graduate students, and scientists in many biomedical fields who are interested in the complex relationship between the tumor microenvironment and its context in specific organs. Provides a holistic approach to understanding the crucial role of the tumor microenvironment in tumor progression Encompasses the basic knowledge necessary to understand and undertake further studies related to tumor microenvironments Discusses new therapeutic approaches developed to control tumor progression by targeting different components of the tumor microenvironment
Download or read book The regulation of angiogenesis by tissue cell macrophage interactions written by Michal Amit Rahat and published by Frontiers E-books. This book was released on 2014-11-03 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Angiogenesis is the physiological process where new blood vessels grow from existing ones, in order to replenish tissues suffering from inadequate blood supply. Perhaps the most studied angiogenic process occurs in solid tumors whose growing mass and expanding cells create a constant demand for additional supply of oxygen and nutrients for survival. However, other physiological and clinical conditions, such as wound healing, ischemic events, autoimmune and age-related diseases also involve angiogenesis. Angiogenesis is a well-structured process that begins when oxygen and nutrients are depleted, leading to the release of chemokines and growth factors that attract immune cells, particularly macrophages and endothelial cells to the site. Macrophages that are recruited to the site, as well as tissue cells and endothelial cells, secrete pro-angiogenic mediators that affect endothelial cells and promote angiogenesis. These mediators include growth factors such as vascular endothelial cell growth factor (VEGF), matrix metalloproteinases (MMPs), as well as low levels of mediators that are usually seen as pro-inflammatory but are pro-angiogenic when secreted in low levels (e.g. nitric oxide (NO) and TNFa). Thus, macrophages play a major role in angiogenesis. Macrophages exhibit high plasticity and are capable of shifting between different activation modes and functions according to their changing microenvironment. Small differences in the composition of activating factors (e.g. TLR ligands such as LPS, anti-inflammatory cytokines, ECM molecules) in the microenvironment may differently activate macrophages to yield classically activated macrophages (or M1 macrophages) that can kill pathogen and tumor cells, alternatively activated macrophages (or M2 macrophages) that secrete antiinflammatory cytokines, resolution macrophages (rM?) that are involved in the resolution of inflammation, or regulatory macrophages (e.g. Myeloid-Derived Suppressor Cells - MDSCs) that control the function of other immune cells. In fact, macrophages may be activated in a spectrum of subsets that may differently contribute to angiogenesis, and in particular non-classically activated macrophages such as tumor-associated macrophages (TAMs) and Tie2-expressing monocytes (TEMs) can secrete high amounts of pro-angiogenic factors (e.g. VEGF, MMPs) or low levels of pro-inflammatory mediators (e.g. NO or TNFa) resulting in pro-angiogenic effects. Although the importance of macrophages as major contributors and regulators of the angiogenic process is well documented, less is known about the interactions between macrophages and other cell types (e.g. tumor cells, normal epithelial cells, endothelial cells) that regulate angiogenesis. We still have only limited understanding which proteins or complexes mediate these interactions and whether they require cell-cell contact (e.g. through integrins) or soluble factors (e.g. the EGF-CSF-1 loop), which signaling pathways are triggered in each of the two corresponding cell types, and how this leads to secretion of pro- or antiangiogenic factors in the microenvironment. The regulation of such interactions and through them of angiogenesis, whether through post-translational modifications of proteins or via the involvement of microRNA, is still unclear. The goal of this Research Topic is to highlight these interactions and their regulation in the context of both physiological and pathological conditions.
Download or read book Community Series in the Role of Angiogenesis and Immune Response in Tumor Microenvironment of Solid Tumor volume II written by Xi Cheng and published by Frontiers Media SA. This book was released on 2023-12-13 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Research Topic is the second volume of the “Community Series in the Role of Angiogenesis and Immune Response in Tumor Microenvironment of Solid Tumor". Please Volume I here. The microenvironment of tumors is consisted of the tumor stroma, proliferating tumor cells, infiltrating inflammatory cells, blood vessels, and various associated tissue cells. The pre-metastatic niche (PRN) is described as supportive and receptive, which undergoes cellular and molecular changes to form the fertile “soil” or metastatic-designated sites for metastatic tumor cell “seed” colonization. Thus, the PRN supports promoting tumor metastasis and tumor settlement in distant organs. The infiltration of the immune cells and the formation of blood vessels from the pre-metastatic sites are critical for the tumor microenvironment. Typically, the angiogenic factor is strongly associated with the inflammatory response during the development of tumors. Additionally, the immunoediting processes are essentially devoted to promoting angiogenesis and modulating the innate and specific immune responses.
Download or read book The Role of Angiogenesis and Immune Response in Tumor Microenvironment of Solid Tumor written by Ren Zhao and published by Frontiers Media SA. This book was released on 2023-05-11 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tumor Microenvironment written by Jacinta Serpa and published by Springer Nature. This book was released on 2020-03-04 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: The way a cell undergoes malignant transformation should meet their capacity of surviving in the microenvironment of the organ where the cancer will develop. Metabolic adaptation is for sure one of the criteria that must be accomplished, driven by metabolic plasticity that allows the adaptation of cancer cells to the availability of energy and biomass sources that will sustain cell survival and proliferation. Each human organ has a particular microenvironment which depends on several cell types and in some cases also on symbiotic microorganisms. These biological partners are constantly sharing organic compounds and signaling molecules that will control mitogenesis, cell death and differentiation, accounting for the organ's function. Nevertheless, cancer cells are capable of taking advantage of this metabolic and signaling microenvironmental dynamics. In this book, we intend to present the different components of the microenvironment driving the metabolic fitness of cancer cells. The metabolic changes required for establishing a tumor in a given microenvironment and how these metabolic changes limit the response to drugs will generally be the major items addressed. It is important to mention not only aspects of the microenvironment that stimulate metabolic changes and that select better adapted tumor cells, but also how this regulation of cell plasticity is made. Thus, the signaling pathways that orchestrate and are orchestrated throughout this panoply of metabolic rearrangements will also be addressed in this book. The subjects will be presented from the conceptual point of view of the cross-cancer mechanisms and also particularizing some models that can be examples and enlightening within the different areas.
Download or read book Systems Biology of Tumor Microenvironment written by Katarzyna A. Rejniak and published by Springer. This book was released on 2016-10-13 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume discusses the complexity of tumor microenvironments during cancer development, progression and treatment. Each chapter presents a different mathematical model designed to investigate the interactions between tumor cells and the surrounding stroma and stromal cells. The topics covered in this book include the quantitative image analysis of a tumor microenvironment, the microenvironmental barriers in oxygen and drug delivery to tumors, the development of tumor microenvironmental niches and sanctuaries, intravenous transport of the circulating tumor cells, the role of the tumor microenvironment in chemotherapeutic interventions, the interactions between tumor cells, the extracellular matrix, the interstitial fluid, and the immune and stromal cells. Mathematical models discussed here embrace both continuous and agent-based approaches, as well as mathematical frameworks of solid mechanics, fluid dynamics and optimal control theory. The topics in each chapter will be of interest to a biological community wishing to apply the mathematical methods to interpret their experimental data, and to a biomathematical audience interested in exploring how mathematical models can be used to address complex questions in cancer biology.
Download or read book Analyzing the Role of the Mammary Tumor Microenvironment in the Pro angiogenic Behavior of Adipose derived Stem Cells written by Young Hye Song and published by . This book was released on 2016 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breast cancer is the leading cause of death of women worldwide, yet the cure for the disease remains elusive. Current therapies directly targeting cancer cells have been limited in effectiveness, partly due to increasing evidence suggesting that host stroma also plays a critical role in disease progression. Hence, studies increasingly focus on gaining a better understanding of the cellular and molecular mechanisms underlying cancer-stroma interactions. In breast cancer in particular, adipose-derived stem cells (ASCs) function as tissue-resident stromal cells that modulate the mammary microenvironment and thus, tumor progression. However, knowledge of the functional contributions of ASCs to tumor progression is relatively limited. Of importance is the effect of ASCs on tumor angiogenesis, or sprouting of new blood vessels by endothelial cells (ECs) in a tumor, a hallmark of cancer that renders tumors less susceptible to therapeutics. A majority of studies that discuss pro-angiogenic behavior of ASCs focuses on their pro-angiogenic factor secretion while cultured on a 2-D plastic substrate. However, this fails to fully recapitulate their behavior in the human body where 3-D heterotypic cell-matrix and cell-cell interactions occur. Additionally, host stromal cells in the tumor microenvironment such as ASCs have been shown to differentiate into myofibroblastic cells that remodel the surrounding extracellular matrix (ECM) extensively, which further promotes tumor progression, iii for example, via increased secretion of growth factors, enhancing cancer cell invasion, and promoting angiogenesis. Equally important are the microenvironmental factors that modulate stromal cell behavior. Of particular interest are tumor-secreted factors, such as tumor cell-derived extracellular vesicles (TEVs), and hypoxia. TEVs were once thought to be debris, but they are now understood to contain myriad bioactive signaling molecules and to transform normal host stromal cells into tumorassociated ones, such as myofibroblasts. Additionally, hypoxia, or low oxygen tension, exists at the core of the tumor and is a critical regulator of tumor angiogenesis. However, it is unclear how extended ECM remodeling, TEVs, and hypoxia modulate myofibroblastic and pro-angiogenic behavior of ASCs in the mammary tumor microenvironment. To investigate the aforementioned question, ASCs were cultured in type I collagen hydrogel-based 3-D culture systems to investigate the following aspects: 1) the effect of extended ECM remodeling by ASCs on angiogenesis by ECs, 2) the effect of TEVs on myofibroblastic differentiation of ASCs and the resulting consequences on angiogenesis, and 3) the effect of tumorsecreted factors and hypoxia on myofibroblastic and pro-angiogenic behavior of ASCs. The results presented here indicate that prolonged ECM remodeling by ASCs as well as exposure of ASCs to TEVs and hypoxia increase pro-angiogenic behavior of ASCs and subsequent endothelial sprouting. On the other hand, hypoxia prevents myofibroblastic differentiation of ASCs whereas prolonged TEV treatment promotes it. My work suggests that ASCs are an integral cellular modulator of the tumor microenvironment and that host stromal cells should be taken into consideration when designing therapeutic targets against breast cancer. iv.
Download or read book Biomarkers of the Tumor Microenvironment written by Lars A. Akslen and published by Springer. This book was released on 2017-08-02 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews different aspects of the cancer microenvironment, and its regulation and importance for tumor progression. Practical applications, in terms of how biomarkers are increasingly included in therapy protocols, will also be discussed. Biomarkers of the Tumor Microenvironment: Basic Studies and Practical Applications is aimed at research pathologists in the cancer field, and also cancer researchers from other backgrounds, especially those using morphology techniques and models focusing on cross-talk between different cell types in tumors.
Download or read book The Extracellular Matrix and the Tumor Microenvironment written by Ilona Kovalszky and published by Springer Nature. This book was released on 2022-07-06 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the most important and best studied extracellular and pericellular molecules of the tumor microenvironment. It gives a comprehensive overview of their role in tumor development and cancer progression. Twelve chapters deal with the biochemical and biophysical background of extracellular matrix (ECM) changes in the tumor stroma compared to the physiological state. The reader learns about the major ECM components that are deregulated during cancer development and how they are associated with cancer progression associated with survival, inflammation process, among others. These are followed by recent data about the cooperative activity of extracellular matrix in tumor metabolism, promoting cancer progression. Two chapters focus specifically on the critical role of the ECM in tumor angiogenesis, linking this process to cellular infiltration and metastatic behavior of tumors. The final part describes how the ECM influences the success of immuno- and chemotherapy in cancer patients, its potential as biomarkers for diagnosis, prognosis, and therapeutic target, as well as the mechanism of resistance-associated changes in the ECM. This book is an interesting read for anyone who want to know more about ECM and cancer biology. Early career scientists can use it as an introduction to the field, offering an excellent tool for studying ECM. Advanced researchers and clinicians can gain a broader overview of the subject, considering the role of ECM for influencing every cancer hallmark as well as in the response of cancer treatments. The work serves to inspire future research and shows that the ECM should be considered as an important factor in the development of cancer therapeutics. The series "Biology of Extracellular Matrix" is published in collaboration with the American Society for Matrix Biology and the International Society for Matrix Biology.
Download or read book Tumor Microenvironment written by Alexander Birbrair and published by Springer Nature. This book was released on 2020-02-06 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revealing essential roles of the tumor microenvironment in cancer progression, this book provides a comprehensive overview of the latest research on how different signaling pathways are important in the tumor microenvironment. Multiple signaling pathways are covered, including S1P, neuregulin, Notch, erythropoietin, Rho-ROCK, mTOR, and more. Taken alongside its companion volumes, these books update us on what we know about various aspects of the tumor microenvironment as well as future directions. Tumor Microenvironment: Signaling Pathways – Part A is essential reading for advanced cell biology and cancer biology students as well as researchers seeking an update on research in the tumor microenvironment.
Download or read book Tumor Microenvironment written by Alexander Birbrair and published by Springer Nature. This book was released on 2021-07-21 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revealing essential roles of the tumor microenvironment in cancer progression, this book provides a comprehensive overview of the latest research on the role of chemokines in the tumor microenvironment. Each chapter focuses on the chemokines patterns of expression, their regulation, and their roles in immune cell recruitment, as well as how they affect cancer immunity and tumorigenesis.Taken alongside its companion volumes, Tumor Microenvironment: The Role of Chemokines – Part B updates us on what we know about various aspects of the tumor microenvironment, as well as apprises us on future directions in the field. This book is essential reading for advanced cell biology and cancer biology students as well as scientists seeking an update on recent developments and research in the tumor microenvironment.
Download or read book Regulation of Gene Expression in the Tumor Environment written by Menashe Bar-Eli and published by Springer Science & Business Media. This book was released on 2008-08-25 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is now becoming very clear that the development and progression of tumor towards the malignant (metastatic) phenotype depends tightly on the interaction between the tumor cells and the tumor microenvironment. Tumor cells respond to stimuli generated within the tumor microenvironment for their growth advantage while the tumor cell themselves reshape and remodel the architecture and function of their extracellular matrices. The term tumor microenvironment is a wide umbrella consisting of stromal cells such as fibroblasts and endothelial cells and infiltration immune cells including T and B cells, macrophages, and other inflammatory cells (PMNs). These different components of the tumor microenvironment could have stimulatory and inhibitory effects on tumor progression by regulating the gene expression repertoire within the tumor cells on one hand and the stroma cells on the other. In this volume we have seven contributors who will discuss several different aspects on the cross talk within the tumor microenvironment components leading to the acquisition of the metastatic phenotype. It is our hope that these state-of-the-art studies will shed further light on our understanding of these complicated processes.
Download or read book Tumor Microenvironment written by Alexander Birbrair and published by Springer Nature. This book was released on 2020-02-14 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revealing essential roles of the tumor microenvironment in cancer progression, this book provides a comprehensive overview of the latest research on the role of interleukins in the tumor microenvironment. Each chapter focuses on the various ways to target the tumor microenvironment by intervention in the interleukin biology, including IL-1, IL-8, IL-21, IL-36 signaling, and more. Taken alongside its companion volumes, Tumor Microenvironment: The Role of Interleukins – Part A updates us on what we know about various aspects of the tumor microenvironment, as well as future directions. This book is essential reading for advanced cell biology and cancer biology students as well as researchers seeking an update on research in the tumor microenvironment.
Download or read book Tumor Microenvironment written by Alexander Birbrair and published by Springer Nature. This book was released on 2020-02-08 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revealing essential roles of the tumor microenvironment in cancer progression, this book focuses on the role of hematopoietic components of the tumor microenvironment. Further, it teaches readers about the roles of distinct constituents of the tumor microenvironment and how they affect cancer development. Topics include neutrophils, basophils, T helper cells, cytotoxic lymphocytes, fibrocytes, and myeloid-derived suppressor cells, and more. Taken alongside its companion volumes, these books update us on what we know about various aspects of the tumor microenvironment as well as future directions. Tumor Microenvironment: Hematopoietic Cells – Part A is essential reading for advanced cell biology and cancer biology students as well as researchers seeking an update on research in the tumor microenvironment.
Download or read book The Heterogeneity of Cancer Metabolism written by Anne Le and published by Springer. This book was released on 2018-06-26 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic alterations in cancer, in addition to being the fundamental drivers of tumorigenesis, can give rise to a variety of metabolic adaptations that allow cancer cells to survive and proliferate in diverse tumor microenvironments. This metabolic flexibility is different from normal cellular metabolic processes and leads to heterogeneity in cancer metabolism within the same cancer type or even within the same tumor. In this book, we delve into the complexity and diversity of cancer metabolism, and highlight how understanding the heterogeneity of cancer metabolism is fundamental to the development of effective metabolism-based therapeutic strategies. Deciphering how cancer cells utilize various nutrient resources will enable clinicians and researchers to pair specific chemotherapeutic agents with patients who are most likely to respond with positive outcomes, allowing for more cost-effective and personalized cancer therapeutic strategies.
Download or read book Tumor Microenvironment written by Alexander Birbrair and published by Springer Nature. This book was released on 2020-04-07 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revealing essential roles of the tumor microenvironment in cancer progression, this volume focuses on the extracellular matrix components of the tumor during cancer development. Further, it teaches readers about the roles of distinct constituents of the tumor microenvironment and how they affect cancer development. Topics include heparan sulphate, hyaluronan, fibronectin, perlecan, glypican, matrix metalloproteinases, and much more. Taken alongside its companion volumes, Tumor Microenvironment: Extracellular Matrix Components – Part A updates us on what we know about the different aspects of the tumor microenvironment, as well as apprises us on the future advances in the field. For the newest generation of researchers, this volume serves as a useful introduction to the history of scientists’ focus on the tumor microenvironment, and explores how this knowledge is currently applied in cancer treatments. The book is an essential text for advanced cell biology and cancer biology students, as well as for scientists seeking an update on the developments in tumor microenvironment research. All of the chapter authors are renowned international experts in the field of cancer biology, and in the specific subfields that are the focus of their chapters.
