Brain Organoids In Research And Therapy

This volume elucidates the pivotal ethical and legal issues arising from the use of brain organoids for research, therapeutic and enhancement purposes. The function of the human brain is still a mystery. Until recently, only post-mortem tissue was available for a structural examination of the brain. Consequently, the examination results could only reflect the state at the end of life. However, in order to better understand the development and function of the human brain, dynamic and functional investigations of different human brain cells are necessary. This is where brain organoids, artificially grown in vitro miniature brains, provide the opportunity for more flexible research scenarios. At the same time, however, the use of brain organoids in research and therapy raises the question of how these new entities are to be treated from an ethical and legal point of view. Against this background, this volume aims at clarifying the normative implications of the use of brain organoids in research and therapy. The ethical reflections on the status of brain organoids, informed consent, human-to-animal chimeras and neuro-enhancement are mirrored by corresponding legal analyses. The ethical and legal assessments are preceded by an introduction to the scientific and medical background of the brain organoid technology. A final chapter will be devoted to the issue of whether international harmonization of normative standards for brain organoid research and therapy is feasible and advisable.

Organoid Technology for Disease Modelling and Personalised Treatment provides a comprehensive overview of current knowledge of the organoid as a human-organ-in-a-dish, a powerful new technology for studying fundamental aspects of human organ development and disease progression in the search for drugs for personalised treatment. This preclinical tool is extensively being utilised as a model for studying human diseases in a dish, which is critical for accurate predictive modelling in precision medicine. The chapters in this book introduces readers to the numerous applications of organoids in various fields of study, as well as ethical considerations associated with organoids. In stem cell biology and regenerative medicine, where chimaera research, biomaterials for tissue vascularisation, gene-editing technologies, and their use in clinical procedures especially issues related to ethical concern over the use of human organoids have gotten much attention. Organoid Technology for Disease Modelling and Personalised Treatment is an excellent resource for in-depth research on one of the most interesting and significant topics in stem cell and regenerative medicine. This book's chapter collection covers a fresh viewpoint on organoid technology that scholars will require reading.

Cancer cell biology research in general, and anti-cancer drug development specifically, still relies on standard cell culture techniques that place the cells in an unnatural environment. As a consequence, growing tumor cells in plastic dishes places a selective pressure that substantially alters their original molecular and phenotypic properties.The emerging field of regenerative medicine has developed bioengineered tissue platforms that can better mimic the structure and cellular heterogeneity of in vivo tissue, and are suitable for tumor bioengineering research. Microengineering technologies have resulted in advanced methods for creating and culturing 3-D human tissue. By encapsulating the respective cell type or combining several cell types to form tissues, these model organs can be viable for longer periods of time and are cultured to develop functional properties similar to native tissues. This approach recapitulates the dynamic role of cell–cell, cell–ECM, and mechanical interactions inside the tumor. Further incorporation of cells representative of the tumor stroma, such as endothelial cells (EC) and tumor fibroblasts, can mimic the in vivo tumor microenvironment. Collectively, bioengineered tumors create an important resource for the in vitro study of tumor growth in 3D including tumor biomechanics and the effects of anti-cancer drugs on 3D tumor tissue. These technologies have the potential to overcome current limitations to genetic and histological tumor classification and development of personalized therapies.

Chapter 1: Artificial intelligence in Neuroscience Chapter 2: Psychedelic treatments Chapter 3: New substances that activate adrenalin receptors to relieve chronic pain Chapter 4: Advancements in neuro-technology Chapter 5: Neuroimaging Chapter 6: Organoid Therapy: Brain Organoid to rehabilitating the addicted brain

Organs and Organoids combines contributions from leading practitioners who work under the editorial control of an acclaimed researcher who also served for eight years as Editor-in-Chief of the journal Organogenesis, the first journal on this topic. The book begins with an introduction, but then delves into chapters that present advice on how to make organoids for many systems. In addition, case studies that illustrate the uses of organioids are presented, along with discussions on future directions and specific problems that need to be solved. Collects the best protocols of organoid cultures from diverse tissues Covers a wide range of organs Includes troubleshooting cases for common, but specific problems for each culture conditions Provides an entire section on the application of organoids

A discussion of all the key issues in the use of human pluripotent stem cells for treating degenerative diseases or for replacing tissues lost from trauma. On the practical side, the topics range from the problems of deriving human embryonic stem cells and driving their differentiation along specific lineages, regulating their development into mature cells, and bringing stem cell therapy to clinical trials. Regulatory issues are addressed in discussions of the ethical debate surrounding the derivation of human embryonic stem cells and the current policies governing their use in the United States and abroad, including the rules and conditions regulating federal funding and questions of intellectual property.

This book summarizes early pioneering achievements in the field of human neural stem cell (hNSC) research and combines them with the latest advances in stem cell technology, including reprogramming and gene editing. The powerful potential of hNSC to generate and repair the developing and adult CNS has been confirmed by numerous experimental in vitro and in vivo studies. The book presents methods for hNSC derivation and discusses the mechanisms underlying NSC in vitro fate decisions and their in vivo therapeutic mode of action. The long-standing dogma that the human central nervous system (CNS) lacks the ability to regenerate was refuted at the end of the 20th century, when evidence of the presence of neurogenic zones in the adult human brain was found. These neurogenic zones are home to human neural stem cells (hNSCs), which are capable of self-renewing and differentiating into neurons, astrocytes and oligodendrocytes. NSCs isolated from human CNS have a number of clinical advantages, especially the innate potential to differentiate into functional neural cells. Nevertheless, their full clinical exploitation has been hindered by limited access to the tissue and low expansion potential. The search for an alternative to CNS sources of autologous, therapeutically competent hNSCs was the driving force for the many studies proving the in vitro plasticity of different somatic stem cells to generate NSCs and their functional progeny. Now the era of induced pluripotent stem cells has opened entirely new opportunities to achieve research and therapeutic goals with the aid of hNSCs.

The development of a brain from its simple beginnings in the embryo to the extraordinarily complex fully-functional adult structure is a truly remarkable process. Understanding how it occurs remains a formidable challenge despite enormous advances over the last century and current intense world-wide scientific research. A greater knowledge of how nervous systems construct themselves will bring huge benefits for human health and future technologies. Unravelling the mechanisms that lead to the development of healthy brains should help scientists tackle currently incurable diseases of the nervous system such as autism, epilepsy and schizophrenia (to name but a few), discover more about the processes that cause the uncontrolled growth associated with cancer and develop possible treatments. Building Brains provides a highly visual and readily accessible introduction to the main events that occur during neural development and the mechanisms by which they occur. Aimed at undergraduate students and postgraduates new to the field, who may not have a background in neuroscience and/or molecular genetics, it explains how cells in the early embryo first become neural, how their proliferation is controlled, what regulates the types of neural cells they become, how neurons connect to each other, how these connections are later refined under the influence of neural activity including that arising from experience, and why some neurons normally die. Key Features: A concise illustrated guide focusing on the core elements of current understanding of neural development, emphasising common principles underlying developmental mechanisms and supplemented by suggestions for further reading. Text boxes throughout provide further detail on selected major advances, issues of particular uncertainty or controversy and examples of human diseases that result from abnormal development. A balanced mammalian/non-mammalian perspective, drawing on examples from model organisms including the fruit fly, nematode worm, frog, zebrafish, chick, mouse, ferret, cat, monkey and human, and emphasising mechanisms that are conserved across species. Introduces the methods for studying neural development including genetics, transgenic technologies, advanced microscopy and computational modeling, allowing the reader to understand the main evidence underlying research advances. Student-friendly, full colour artwork reinforces important concepts; an extensive glossary and definitions in page margins help readers from different backgrounds; chapter summaries stress important points and aid revision. Associated Website includes a complete set of figures from the textbook.