Download or read book Inflammation and the Microcirculation written by D. Neil Granger and published by Morgan & Claypool Publishers. This book was released on 2010 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microcirculation is highly responsive to, and a vital participant in, the inflammatory response. All segments of the microvasculature (arterioles, capillaries, and venules) exhibit characteristic phenotypic changes during inflammation that appear to be directed toward enhancing the delivery of inflammatory cells to the injured/infected tissue, isolating the region from healthy tissue and the systemic circulation, and setting the stage for tissue repair and regeneration. The best characterized responses of the microcirculation to inflammation include impaired vasomotor function, reduced capillary perfusion, adhesion of leukocytes and platelets, activation of the coagulation cascade, and enhanced thrombosis, increased vascular permeability, and an increase in the rate of proliferation of blood and lymphatic vessels. A variety of cells that normally circulate in blood (leukocytes, platelets) or reside within the vessel wall (endothelial cells, pericytes) or in the perivascular space (mast cells, macrophages) are activated in response to inflammation. The activation products and chemical mediators released from these cells act through different well-characterized signaling pathways to induce the phenotypic changes in microvessel function that accompany inflammation. Drugs that target a specific microvascular response to inflammation, such as leukocyte-endothelial cell adhesion or angiogenesis, have shown promise in both the preclinical and clinical studies of inflammatory disease. Future research efforts in this area will likely identify new avenues for therapeutic intervention in inflammation. Table of Contents: Introduction / Historical Perspectives / Anatomical Considerations / Impaired Vasomotor Responses / Capillary Perfusion / Angiogenesis / Leukocyte-Endothelial Cell Adhesion / Platelet-Vessel Wall Interactions / Coagulation and Thrombosis / Endothelial Barrier Dysfunction / Epilogue / References

Download or read book Inflammation and Angiogenesis written by Domenico Ribatti and published by Springer. This book was released on 2017-11-08 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is focused on the analysis of the role played by immune cell components in the angiogenic process associated with inflammation and tumor growth. Both innate and adaptive immune cells are involved in the mechanisms of endothelial cell proliferation, migration and activation, through the production and release of a large spectrum of pro-angiogenic mediators. These may create the specific microenvironment that favors an increased rate of tissue vascularization. The link between chronic inflammation and tumorigenesis was first proposed by Rudolf Virchow in 1863 after the observation that infiltrating leukocytes are a hallmark of tumors and first established a causative connection between the lymph reticular infiltrate at sites of chronic inflammation and the development of cancer. Tumors were described as wounds that never heal and surgeons have long described the tendency of tumors to recur in healing resection margin and it has been reported that wound healing environment provides an opportunistic matrix for tumor growth. As angiogenesis is the result of a net balance between the activities exerted by positive and negative regulators, this book will also provide information on some anti-angiogenic properties of immune cells that may be utilized for a potential pharmacological use as anti-angiogenic agents in inflammation as well as in cancer. The work is written for researchers in the field and also for graduate students which approach this matter.

Download or read book Angiogenesis in Inflammation Mechanisms and Clinical Correlates written by Michael Seed and published by Springer Science & Business Media. This book was released on 2008-11-14 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This much-needed text develops current knowledge on the mechanisms of angiogenesis at the molecular and cellular levels as they relate to inflammation, including acute and chronic inflammation, neurogenic initiation, and the role of the multiple cellular components that comprise inflammation. The volume brings together experts in each of these fields to link the molecular and cellular processes in angiogenesis to those of inflammation and disease, culminating in a discourse on areas for future therapies.

Download or read book Regulation of inflammation and angiogenesis in the cornea written by Anthony Mukwaya and published by Linköping University Electronic Press. This book was released on 2018-05-21 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inflammation and angiogenesis, the growth of new blood vessels from pre-existing ones, are involved in tumor growth, ocular diseases and wound healing. In ocular angiogenesis, new pathological vessels grow into a specific eye tissue, leak fluid, and disrupt vision. The development of safe and effective therapies for ocular angiogenesis is of great importance for preventing blindness, given that current treatments have limited efficacy or are associated with undesirable side effects. The search for alternative treatment targets requires a deeper understanding of inflammation and how it can lead to angiogenesis in the eye in pathologic situations. This thesis provides new insights into the regulation of inflammation and angiogenesis, particularly at the gene expression and phenotypic levels, in different situations characterized by angiogenesis of the cornea, often called corneal neovascularization. For instance, specific genes and pathways are either endogenously activated or suppressed during active inflammation, wound healing, and during resolution of inflammation and angiogenesis, serving as potential targets to modulate the inflammatory and angiogenic response. In addition, as part of the healing response to restore corneal transparency, inflammation and angiogenesis subside with time in the cornea. In this context, LXR/RXR signaling was found to be activated in a time-dependent manner, to potentially regulate resolution of inflammation and angiogenesis. During regression of new angiogenic capillaries, ghost vessels and empty basement membrane sleeves are formed, which can persist in the cornea for a long time. Here, ghost vessels were found to facilitate subsequent revascularization of the cornea, while empty basement membrane sleeves did not revascularize. The revascularization response observed here was characterised by vasodilation, increased inflammatory cell infiltration and by sprouting at the front of the reperfused vessels. Importantly, reactive oxygen species and nitrous oxide signaling among other pro-inflammatory pathways were activated, and at the same time anti-inflammatory LXR/RXR signaling was inhibited. The interplay between activation and inhibition of these pathways highlights potential mechanisms that regulate corneal revascularization. When treating corneal neovascularization clinically, corticosteroids are in widespread use due to their effectiveness. To minimize the many undesirable side effects associated with corticosteroid use, however, identifying new and more selective agents is of great importance. Here, it was observed that corticosteroids not only suppressed pro-inflammatory chemokines and cytokines, but also activated the classical complement pathway. Classical complement may represent a candidate for further selective therapeutic manipulation to investigate its effect on treatment of corneal neovascularization. In summary, this thesis identifies genes, pathways, and phenotypic responses involved in sprouting and remodeling of corneal capillaries, highlights novel pathways and factors that may regulate inflammation and angiogenesis in the cornea, and provides insights into regulation of capillary regression and reactivation. Further investigation of these regulatory mechanisms may offer alternative and effective treatment targets for the treatment of corneal inflammation and angiogenesis.

Download or read book Oxidative Stress Inflammation and Angiogenesis in the Metabolic Syndrome written by Raquel Soares and published by Springer Science & Business Media. This book was released on 2009-02-25 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metabolic Syndrome (MS) is a highly prevalent condition in developed countries and is a cluster of several risk factors for type 2 diabetes and cardiovascular disease that includes increased body mass index/waist circumference, visceral obesity, insulin resistance, hyperclycaemia, dyslipidaemia and hypertension, which are all major causes of morbidity and death. This volume provides a critical review and discussion of the knowledge gathered on MS and analyzes the interplay between oxidative stress, chronic inflammation and angiogenesis features. There is a special focus on recent discoveries and progress toward possible therapeutic strategies, such as the role of glucose transporters within MS; the effects of polyphenols as anti-oxidant, anti-inflammatory and anti-angiogenic compounds. The role of NFkB, nitric oxide synthases, hypoxia-inducible factors, and many other molecules that play a part in the development of oxidative stress and inflammation as well as angiogenesis is also covered. This book fills the gap between basic science and medical care, and provides the reader with the skills to apply rigorous basic science to clinical settings of metabolic syndrome-associated disorders.

Download or read book Inhibitors of corneal inflammation and angiogenesis written by Pierfrancesco Mirabelli and published by Linköping University Electronic Press. This book was released on 2019-04-30 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pathologic angiogenesis is involved in cancer and several blinding conditions such as wet age-related macular degeneration, proliferative retinopathies and corneal neovascularization. In these dieseases, the angiogenic triggers are hypoxia and inflammation, and both involve the main angiogenic mediator, which is Vascular Endothelial Growth Factor (VEGF). Among available treatments, anti-VEGF often shows limited or temporary efficacy, while steroids are potentially responsible for many side-effects. This thesis presents a series of linked studies aimed at elucidating the early pathologic changes leading to inflammation and corneal neovascularization, and how various treatments affect this process. In this thesis, anti-inflammatory and anti-angiogenic treatments are applied in corneal neovascularization models, to identify VEGF-independent pathways and other novel factors as future therapy targets, as well as to investigate the endogenous modulation of angiogenesis. A model of experimental neovascularization in the rat cornea was used as main model, where the neovascular response is triggered by a surgical suture placed into the cornea. Investigational treatments (anti-Vegf, dexamethasone, IMD0354, Gap27, or control substances) were then given topically, with the exception of IMD0354, which was given systemically. The effects in the cornea were studied in vivo with slit lamp photography to assess and quantify macroscopic vessel growth and using in vivo confocal microscopy (IVCM) to study cell infiltration and limbal vessel dilation and detect microscopic vessel sprouts; these examinations were performed longitudinally. Genomic analysis with RNA microarray, selected gene expression with q-RT-PCR, and selected protein expression in tissue (immunohistochemistry, immunofluorescence, Western blot) were performed at different time-points. Moreover, other experiments on cell cultures (HUVEC and HCEC), organ cultures (human corneas), ex vivo models (aortic rings) and in vivo studies (zebrafish vasculogenesis) were performed. Dexamethasone suppressed limbal vasodilation and corneal neovascularization more than anti-Vegf, despite no difference in inflammatory cell infiltration into the cornea. Five-hundred eleven fewer genes were differentially expressed in dexamethasone-treated corneas relative to naïve corneas, compared to anti-Vegf. Among them, several major pro-angiogenic and pro-inflammatory factors and chemokines were suppressed only by dexamethasone and represent novel candidate factors to target in order to improve anti-VEGF treatment. On the other hand, selective inhibition of a single inflammatory pathway (NF-?B), despite showing similar early effects as dexamethasone in suppressing tissue inflammation, was not effective enough to suppress new vessel growth. The same factors suppressed by dexamethasone are also inhibited in endogenous modulation of angiogenesis. Surprisingly, dexamethasone activated several complement factors, which could possibly be beneficial in the anti-angiogenic response. In a different therapeutic approach, promoting cell migration to accelerate epithelial wound closure similarly was not sufficient to avoid inflammation and angiogenesis in the cornea. In conclusion, new and more effective treatments are needed for corneal inflammation and neovascularization with fewer side-effects. In this thesis, several novel factors and mechanisms related to inflammation are identified, factors that are not addressed by anti-Vegf therapy, and therefore represent interesting objects for further study, as they have the potential to be targets for adjuvant therapy. Specific anti-inflammatory treatment as well as therapeutic activation of endogenous regulatory pathways, and potentially complement modulation, might represent new strategies to improve anti-angiogenic therapy, but when used alone they do not seem to avoid corneal neovascularization.

Download or read book Angiogenesis in Inflammation Mechanisms and Clinical Correlates written by Michael Seed and published by Birkhäuser. This book was released on 2009-08-29 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This much-needed text develops current knowledge on the mechanisms of angiogenesis at the molecular and cellular levels as they relate to inflammation, including acute and chronic inflammation, neurogenic initiation, and the role of the multiple cellular components that comprise inflammation. The volume brings together experts in each of these fields to link the molecular and cellular processes in angiogenesis to those of inflammation and disease, culminating in a discourse on areas for future therapies.

Download or read book Angiogenesis written by William D. Figg and published by Springer Science & Business Media. This book was released on 2008-05-24 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Judah Folkman is considered the "father of angiogenesis." Because of Folkman's discovery and research, the possibilities of angiogenic therapy have broadened beyond cancer to many noncancerous diseases. Angiogenesis: An Integrative Approach from Science to Medicine is a comprehensive, concise summary of tumor angiogenesis. It is an up-to-date and authoritative reference for the angiogenesis field as it relates to oncology. This book represents the first collection in a volume of which Folkman is co-editor. Folkman has authored nearly 400 original papers and more than 100 book chapters.

Download or read book Targeting Angiogenesis Inflammation and Oxidative Stress in Chronic Diseases written by Tapan Behl and published by Elsevier. This book was released on 2024-01-26 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Targeting Angiogenesis, Inflammation and Oxidative Stress in Chronic Diseases presents recent advances in the vivid molecular pathways targeting angiogenesis, inflammation and oxidative stress that contribute very widely to the genesis of chronic diseases. The books will also highlight the drugs from natural and synthetic origin in the management/prevention/treatment of diseases along with the drug delivery approaches. The book’s authors from various key institutions around the globe will deliver well-structured and well-designed chapters. The systematic presented information and knowledge will surely aid consistency and continuity. The multifaceted book is enriched with deep scientific contents. Each chapter will clearly define the facts, emerging role of molecular pathways and the targets and focus will be imparted on key challenges associated and the future directions that will provide torch bearer thing for the researchers to explore new targets in the domain. Focuses on the pathogenesis of the disease, along with the molecular mechanism of action Includes updates on strategic design/delivery of drugs targeting angiogenesis, inflammation, and oxidative stress Provides recent advancements in the field of pathogenesis of chronic diseases

Download or read book Endothelial Dysfunction During Inflammation and Alloimmunity written by Olaf Penack and published by Frontiers Media SA. This book was released on 2019-04-09 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endothelial cells form the inner lining of blood and lymphatic vessels and they have frequent interactions with immune cells as well as foreign agents. Endothelial function is crucially involved in physiologic immunity at different stages including recruitment of leukocytes, angiogenesis and tissue repair. Endothelial dysfunction is a not well-defined term, it is widely used to describe the non-physiologic activity of endothelial cells. It has been suggested that endothelial dysfunction plays a role in a variety of human diseases, such as arteriosclerosis, cancer, autoimmunity and sepsis. More recently, a role of lymphatic endothelial cells as well as vascular endothelial cells in the pathophysiology of inflammation and allo-immune reactions has been suggested. Development of novel therapeutic approaches to normalize endothelial dysfunction is currently an unmet medical need. Until now, the cellular and molecular mechanisms of mutual influences between endothelial dysfunction and human diseases remain largely unexplored, constituting a frontier hindering the development of new therapies. This Research Topic aims to build a forum for a wide range of scientific studies in the fields of endothelial dysfunction during inflammatory diseases and transplantation.

Download or read book The Link Between Inflammation and Cancer written by Angus G. Dalgleish and published by Springer Science & Business Media. This book was released on 2006-03-05 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A link between inflammation and cancer has been established many years ago, yet it is only recently that the potential significance of this connection has become apparent. Although several examples of chronic inflammatory conditions, often induced by persistent irritation and/or infection, developing into cancer have been known for some time, there has been a notable resistance to contemplate the possibility that this association may apply in a causative way to other cancers. Examples for such progression from chronic inflammation to cancer are colon carcinoma developing with increased frequency in patients with ulcerative colitis, and the increased incidence of bladder cancer in patients suffering from chronic Schistosoma infection. Inflammation and cancer have been recognized to be linked in another context for many years, i.e., with regards to pathologies resembling chronic lacerations or 'wounds that do not heal.' More recently, the immunology of wound healing has given us clues as to the mechanistic link between inflammation and cancer, in as much as wounds and chronic inflammation turn off local cell-mediated immune responses and switch on growth factor release as well the growth of new blood vessels - angiogenesis. Both of these are features of most types of tumours, which suggest that tumours may require an immunologically shielded milieu and a growth factor-rich environment.

Download or read book Inflammation and Cancer written by Bharat B. Aggarwal and published by Springer. This book was released on 2014-05-12 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume examines in detail the role of chronic inflammatory processes in the development of several types of cancer. Leading experts describe the latest results of molecular and cellular research on infection, cancer-related inflammation and tumorigenesis. Further, the clinical significance of these findings in preventing cancer progression and approaches to treating the diseases are discussed. Individual chapters cover cancer of the lung, colon, breast, brain, head and neck, pancreas, prostate, bladder, kidney, liver, cervix and skin as well as gastric cancer, sarcoma, lymphoma, leukemia and multiple myeloma.

Download or read book Targeting Angiogenesis to Treat Autoimmune Diseases and Cancer written by Michal Amit Rahat and published by Frontiers Media SA. This book was released on 2020-07-08 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Endothelium written by Michel Félétou and published by Morgan & Claypool Publishers. This book was released on 2011 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells. The endothelium is a major player in the control of blood fluidity, platelet aggregation and vascular tone, a major actor in the regulation of immunology, inflammation and angiogenesis, and an important metabolizing and an endocrine organ. Endothelial cells controls vascular tone, and thereby blood flow, by synthesizing and releasing relaxing and contracting factors such as nitric oxide, metabolites of arachidonic acid via the cyclooxygenases, lipoxygenases and cytochrome P450 pathways, various peptides (endothelin, urotensin, CNP, adrenomedullin, etc.), adenosine, purines, reactive oxygen species and so on. Additionally, endothelial ectoenzymes are required steps in the generation of vasoactive hormones such as angiotensin II. An endothelial dysfunction linked to an imbalance in the synthesis and/or the release of these various endothelial factors may explain the initiation of cardiovascular pathologies (from hypertension to atherosclerosis) or their development and perpetuation. Table of Contents: Introduction / Multiple Functions of the Endothelial Cells / Calcium Signaling in Vascular Cells and Cell-to-Cell Communications / Endothelium-Dependent Regulation of Vascular Tone / Conclusion / References

Download or read book Cancer and Inflammation written by Douglas W. Morgan and published by Springer. This book was released on 2012-12-06 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: How are cancer and inflammation interrelated mechanistically and clinically? Though extensive literature exists on the topic "Cancer and Inflammation", there are relatively few texts that have truly integrated the two in spite of the many common mechanisms shared by their processes. Certainly, areas such as cytokines, growth factors, proliferation, signal transduction and angiogenesis, for example, are found in both. Yet, the dynamics of how these common mechanisms are maybe interrelated in the pathologies of the two is not widely covered. Such coverage, as presented in this volume, may help further understanding and bring new approaches to therapeutics. The first section of the book discusses inflammatory mechanisms, studied in cellular and animal studies. The second part concentrates on clinical studies with antiinflammatory drugs in cancer treatment. The volume is written for biomedical researchers in the health care industry and in academia who are working in these areas.

Download or read book Surgical Inflammation written by Jaime Arias, Maria-Angeles Aller and Jose-Ignacio Arias and published by Bentham Science Publishers. This book was released on 2013-12-07 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph offers the reader an integrated point-of-view about the inflammatory response related to injury, infections and tumors. This integration is based on the hypothesis that the multiple pathophysiological mechanisms making up inflammation represent the re-expression of ontogenic mechanisms during early embryo development as well as the recapitulation of ancestral phylogenetic mechanisms. The relevance of the anti-inflammatory treatments is also highlighted with respect to polytraumatic patients, advances in stem cell research, embryology and the wound healing mechanism. Readers of this book will have the chance of gaining a unique perspective about of the pathophysiological mechanisms involved in the multiple inflammatory conditions. This integrative concept about inflammation can be applied in biological investigation, as well as in clinical research and translational medicine.

Download or read book Angiogenesis Lymphangiogenesis and Clinical Implications written by G. Marone and published by Karger Medical and Scientific Publishers. This book was released on 2013-10-21 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Angiogenesis, the formation of new blood vessels, is fundamental for physiological processes such as embryonic and postnatal development, wound repair, and reproductive functions. Angiogenesis plays a major role in tumor growth and in several autoimmune and allergic disorders. Lymphangiogenesis, the formation of new lymphatic vessels, is also important for tumor growth, the formation of metastasis, and chronic inflammatory diseases. Judah Folkman, a pioneer in the study of angiogenesis, first proposed that macrophages and mast cells could be a relevant source of angiogenic factors. Since then, much effort has gone into the elucidation of the role of immune cells in the modulation of angiogenesis and lymphangiogenesis. There is now compelling evidence that several components of the innate and adaptive immune system are implicated in inflammatory and neoplastic angiogenesis and lymphangiogenesis. Articles in this volume deal with the emerging, intriguing possibility that immune cells are both a source and a target of angiogenic and lymphangiogenic factors. Therefore, cells of the immune system might play a role in inflammatory and neoplastic angiogenesis/lymphangiogenesis through the expression of several angiogenic factors and their receptors and co-receptors. The important new findings in this volume will be of special interest to vascular biologists, basic and clinical immunologists, oncologists and to specialists in allergic and immune disorders.