Cancer Ecosystems

This book intends to report new concept of onco-spheres in cancer ecosystem. Onco-spheres are defined as where cancer cells (living organisms) dynamically interact with nontumor cellular (other living organisms) and noncellular components (non-living environmental factors) in the ‘host’ internal environment (habitat) to construct a self-sustainable cancer ecosystem, which can be scoped at three different levels: primary/regional, distal and systemic onco-spheres. Cancer cells should be conceived as ‘living organisms’, interacting with cellular or noncellular components in the host internal environment, not only with the local tumor microenvironment (TME) but also constantly communicating with a distant organ niche as well interacting with the host’s nervous, endocrine and immune systems, to construct a self-sustainable ‘biosphere’, as we termed the tumor ecosystem. By looking at the interaction of cancer and host as a unique ecosystem, we will use ecology principles to further delineate the features of the dynamics of the tumor ecosystem. As the pioneer in proposing this concept, we feel that this full-scale overview of the tumor ecosystem is able to inform the readers about this concept, and to pave the way for designing novel therapeutic strategies on actionable targets within tumor ecosystem. The book is likely to be of interest to immunologist, biologist, medical students, researchers and general public who wish to learn more on this new concept of tumor ecosystem, and how this could be applied in many fields of research.

Ecology and Evolution of Cancer is a timely work outlining ideas that not only represent a substantial and original contribution to the fields of evolution, ecology, and cancer, but also goes beyond by connecting the interfaces of these disciplines. This work engages the expertise of a multidisciplinary research team to collate and review the latest knowledge and developments in this exciting research field. The evolutionary perspective of cancer has gained significant international recognition and interest, which is fully understandable given that somatic cellular selection and evolution are elegant explanations for carcinogenesis. Cancer is now generally accepted to be an evolutionary and ecological process with complex interactions between tumor cells and their environment sharing many similarities with organismal evolution. As a critical contribution to this field of research the book is important and relevant for the applications of evolutionary biology to understand the origin of cancers, to control neoplastic progression, and to prevent therapeutic failures. Covers all aspects of the evolution of cancer, appealing to researchers seeking to understand its origins and effects of treatments on its progression, as well as to lecturers in evolutionary medicine Functions as both an introduction to cancer and evolution and a review of the current research on this burgeoning, exciting field, presented by an international group of leading editors and contributors Improves understanding of the origin and the evolution of cancer, aiding efforts to determine how this disease interferes with biotic interactions that govern ecosystems Highlights research that intends to apply evolutionary principles to help predict emergence and metastatic progression with the aim of improving therapies

The book aims to provide an introduction to mathematical models that describe the dynamics of tumor growth and the evolution of tumor cells. It can be used as a textbook for advanced undergraduate or graduate courses, and also serves as a reference book for researchers. The book has a strong evolutionary component and reflects the viewpoint that cancer can be understood rationally through a combination of mathematical and biological tools. It can be used both by mathematicians and biologists. Mathematically, the book starts with relatively simple ordinary differential equation models, and subsequently explores more complex stochastic and spatial models. Biologically, the book starts with explorations of the basic dynamics of tumor growth, including competitive interactions among cells, and subsequently moves on to the evolutionary dynamics of cancer cells, including scenarios of cancer initiation, progression, and treatment. The book finishes with a discussion of advanced topics, which describe how some of the mathematical concepts can be used to gain insights into a variety of questions, such as epigenetics, telomeres, gene therapy, and social interactions of cancer cells. Contents:Teaching GuideCancer and Somatic EvolutionMathematical Modeling of TumorigenesisBasic Growth Dynamics and Deterministic Models:Single Species GrowthTwo-Species Competition DynamicsCompetition Between Genetically Stable and Unstable CellsChromosomal Instability and Tumor GrowthAngiogenesis Inhibitors, Promoters, and Spatial GrowthEvolutionary Dynamics and Stochastic Models:Evolutionary Dynamics of Tumor Initiation Through Oncogenes: The Gain-of-Function ModelEvolutionary Dynamics of Tumor Initiation Through Tumor-Suppressor Genes: The Loss-of-Function Model and Stochastic TunnelingMicrosatellite and Chromosomal Instability in Sporadic and Familial Colorectal CancersEvolutionary Dynamics in Hierarchical PopulationsSpatial Evolutionary Dynamics of Tumor InitiationComplex Tumor Dynamics in SpaceStochastic Modeling of Cellular Growth, Treatment, and Resistance GenerationEvolutionary Dynamics of Drug Resistance in Chronic Myeloid LeukemiaAdvanced Topics:Evolutionary Dynamics of Stem-Cell Driven Tumor GrowthTumor Growth Kinetics and Disease ProgressionEpigenetic Changes and the Rate of DNA MethylationTelomeres and Cancer ProtectionGene Therapy and Oncolytic Virus TherapyImmune Responses, Tumor Growth, and TherapiesTowards Higher Complexities: Social Interactions Readership: Researchers in mathematical biology, mathematical modeling, biology, mathematical oncology. Keywords:Mathematical Oncology;Dynamics;Evolution;Evolutionary Dynamics;Cancer;Mathematical Models;Somatic Evolution;TeachingKey Features:Both a reference book for the topic, and provides material for undergraduate and graduate coursesTries to bridge the divide between mathematicians and biologists, which is also reflected in the backgrounds of the two authorsShows how mathematical concepts can be translated into experimentally and clinically useful insightsRooted in evolutionary biology, the book handles this very complex phenomenon in an intuitive and mathematically elegant wayContains problems and research projects for each topic10 pages of figures in color

This book is the first of its kind in bringing together biodiversity, chemical ecology, phytochemistry and cancer therapy. The highlight of the book is an exhaustive compilation of scientific data on biodiversity of medicinal plants, biodiversity and metagenomics, chemical ecology of medicinal plants, chemical ecology of marine organisms, natural products from terrestrial microbial organisms with activity towards cancer cells, marine organisms, ethnopharmacology and phytotherapy, contribution of African flora in world fight against cancer, natural products derived from terrestrial plants with activity towards cancer cells and established anticancer drugs from natural origin. The book discusses the state-of-the-art of each topic to serve as reference resource tools for graduate students as well as scientists and scholars in pharmaceutical sciences, pharmacology, organic chemistry and biochemistry, pharmacognosy, phytochemistry, ethnomedicine and ethnopharmacology, complementary and alternative medicine, medical and public health sciences and others. It includes cutting-edge developments in anticancer discovery from both medicinal plants and organisms. Contents:Biodiversity of Medicinal Plants (Kirsten Yacoub, Katharina Cibis and Corinna Risch)Biodiversity and Metagenomics (Eva-Maria Surmann and Thomas Efferth)Chemical Ecology of Medicinal Plants (Christian Kersten, Stephanie Lenz and Janina Wich)Chemical Ecology of Marine Organisms (André Antunes and Thomas Efferth)Natural Products from Terrestrial Microbial Organisms with Cytotoxic Cell Cycle Inhibitors (Theresa Dreis, Caroline Gartner, Julia Krebs and Mathias Schneider)Marine Compounds (Jennifer Honek and Thomas Efferth)Ethnopharmacology and Phytotherapy (Ariane Löhnert, Susanne Löhnert, Viktoriya Mogilevskaya and Sandra Schick)Contribution of African Flora in a Global Fight Against Cancer (Victor Kuete and Thomas Efferth)Natural Products Derived from Terrestrial Plants with Activity Towards Cancer Cells (Sonia Falenska, Ina Kirmes, Stephanie Kletting, Irini Karagianni and Karen Duffy)Established Anticancer Drugs from Natural Origin (Clara Becker, Kerstin Hoffmann, Laura Hoffmann, Tanya King, Franziska Faulstich, Katrin Viertel, Victor Kuete and Thomas Efferth) Readership: Graduate students and scientists in pharmaceutical sciences, pharmacology, organic chemistry, biochemistry, pharmacognosy, phytochemistry, ethnomedicine & ethnopharmacology, compementary & alternative medicine, public health. Key Features:This book is the first of its kind bringing together biodiversity, chemical ecology, phytochemistry and cancer therapyThe book provides the state-of-the-art in anticancer discovery from medicinal plantsThe book also provides the state-of-the-art in anticancer discovery from marine organismsKeywords:Biodiversity;Cancer;Marine Products;Natural Products;Established Drugs

A fundamental and groundbreaking reassessment of how we view and manage cancer When we think of the forces driving cancer, we don’t necessarily think of evolution. But evolution and cancer are closely linked because the historical processes that created life also created cancer. The Cheating Cell delves into this extraordinary relationship, and shows that by understanding cancer’s evolutionary origins, researchers can come up with more effective, revolutionary treatments. Athena Aktipis goes back billions of years to explore when unicellular forms became multicellular organisms. Within these bodies of cooperating cells, cheating ones arose, overusing resources and replicating out of control, giving rise to cancer. Aktipis illustrates how evolution has paved the way for cancer’s ubiquity, and why it will exist as long as multicellular life does. Even so, she argues, this doesn’t mean we should give up on treating cancer—in fact, evolutionary approaches offer new and promising options for the disease’s prevention and treatments that aim at long-term management rather than simple eradication. Looking across species—from sponges and cacti to dogs and elephants—we are discovering new mechanisms of tumor suppression and the many ways that multicellular life-forms have evolved to keep cancer under control. By accepting that cancer is a part of our biological past, present, and future—and that we cannot win a war against evolution—treatments can become smarter, more strategic, and more humane. Unifying the latest research from biology, ecology, medicine, and social science, The Cheating Cell challenges us to rethink cancer’s fundamental nature and our relationship to it.

Tropical ecosystems - the regions between the tropics of Cancer and Capricorn - play an important role in global processes, economic issues, and political concerns. In their natural state, tropical ecosystems support a large quantity of above- and below-ground biomass, and constitute a major part of the terrestrial carbon pool. Conversion of the natural ecosystem to agriculture and forestry ecosystems disturbs this ecological balance. Global Climate Change and Tropical Ecosystems presents data on carbon pool fluxes from case studies in 12 countries in tropical regions. The chapters cover: Characteristics of tropical ecosystems Soil and biotic carbon pools Impacts of land use and soil management Slash-and-burn practices Crop residue and fertility management This volume adds to the understanding of pedospheric processes in tropical ecosystems and how to better use soils as a sink for carbon dioxide and other greenhouse gases. With Global Climate Change and Tropical Ecosystems you will understand the link between soil productivity, environmental quality and the global carbon cycle, not only in these ecologically sensitive regions but worldwide.