Organ-on-a-Chip


Book Description

This book provides a collection of microphysiological systems employed for chemical/drug screening and strategies to mimic various physiological conditions. Chapters guide readers through Organ-on-a-Chip( OoC) platforms such as liver, intestine, blood-brain barrier, kidney, vessels, cardiac and skeletal muscles, articular joint, human fat. Additional chapters detail microfabrication technologies used to fabricate OoC devices such as, standard photo- and soft-lithography, techniques to fabricate membranes, and industrial-oriented fabrication methods.Written in the format of the highly successful Methods in Molecular Biology series, each chapter includes an introduction to the topic, lists necessary materials and reagents, includes tips on troubleshooting and known pitfalls, and step-by-step, readily reproducible protocols. Authoritative and cutting-edge, Organ-On-a Chip: Methods and Protocols aims to be a useful practical guide to researches to help further their study in this field.




Organ-on-a-chip


Book Description

Organ-on-a-Chip: Engineered Microenvironments for Safety and Efficacy Testing contains chapters from world-leading researchers in the field of organ on a chip development and applications, with perspectives from life sciences, medicine, physiology and engineering. The book contains an overview of the field, with sections covering the major organ systems and currently available technologies, platforms and methods. As readers may also be interested in creating biochips, materials and engineering best practice, these topics are also described. Users will learn about the limitations of 2D in-vitro models and the available 3D in-vitro models (what benefits they offer and some examples). Finally, the MOC section shows how the organ on a chip technology can be adapted to improve the physiology of in-vitro models. - Includes case studies of other organs on a chip that have been developed and successfully used - Provides insights into functional microphysiological organ on a chip platforms for toxicity and efficacy testing, along with opportunities for translational medicine - Presented fields (PK/PD, physiology, medicine, safety) are given a definition followed by the challenges and potential of organs on a chip




Organs-on-chips


Book Description

Recent advances in microsystems technology and cell culture techniques have led to the development of organ-on-chip microdevices that produce tissue-level functionality, not possible with conventional culture models, by recapitulating natural tissue architecture and microenvironmental cues within microfluidic devices. Since the physiological microenvironments in living systems are mostly microfluidic in nature, the use of microfluidic devices facilitates engineering cellular microenvironments; the microfluidic devices allow for control of local chemical gradients and dynamic mechanical forces, which play important roles in cellular viability and function. The organ-on-chip microdevices have great potential to promote drug discovery and development, to model human physiology and disease, and to replace animal models for efficacy and toxicity testing. Recently, induced pluripotent stem (iPS) cells have been leveraged to develop organs-on-chips, which enable various types of organ models and disease models not possible with primary cells and cell lines. This Special Issue seeks to showcase research papers, short communications, and review articles that focus on: (1) microdevices to mimic or control cellular microenvironment; (2) microdevices to evaluate interactions between different organ models; (3) microdevices to maintain iPS cells or iPSC-derived cells; and (4) sensors and techniques to evaluate drug efficacy or toxicity.




Lab-on-a-Chip Fabrication and Application


Book Description

The necessity of on-site, fast, sensitive, and cheap complex laboratory analysis, associated with the advances in the microfabrication technologies and the microfluidics, made it possible for the creation of the innovative device lab-on-a-chip (LOC), by which we would be able to scale a single or multiple laboratory processes down to a chip format. The present book is dedicated to the LOC devices from two points of view: LOC fabrication and LOC application.




The Organ Thieves


Book Description

The Immortal Life of Henrietta Lacks meets Get Out in this “startling…powerful” (Kirkus Reviews) investigation of racial inequality at the core of the heart transplant race. In 1968, Bruce Tucker, a black man, went into Virginia’s top research hospital with a head injury, only to have his heart taken out of his body and put into the chest of a white businessman. Now, in The Organ Thieves, Pulitzer Prize–nominated journalist Chip Jones exposes the horrifying inequality surrounding Tucker’s death and how he was used as a human guinea pig without his family’s permission or knowledge. The circumstances surrounding his death reflect the long legacy of mistreating African Americans that began more than a century before with cadaver harvesting and worse. It culminated in efforts to win the heart transplant race in the late 1960s. Featuring years of research and fresh reporting, along with a foreword from social justice activist Ben Jealous, “this powerful book weaves together a medical mystery, a legal drama, and a sweeping history, its characters confronting unprecedented issues of life and death under the shadows of centuries of racial injustice” (Edward L. Ayers, author of The Promise of the New South).




Animal Experimentation


Book Description

Animal Experimentation: Working Towards a Paradigm Change critically appraises current animal use in science and discusses ways in which we can contribute to a paradigm change towards human-biology based approaches.




Basic Concepts on 3D Cell Culture


Book Description

This textbook shall introduce the students to 3D cell culture approaches and applications. An overview on existing techniques and equipment is provided and insight into various aspects and challenges that researchers need to consider and face during culture of 3D cells is given. The reader will learn the importance of physiological cell, tissue and organ models and gains important knowledge on 3D analytics. This textbook deepens selected aspects of the textbook “Cell Culture Technology”, which also is published in this series, while offering extended insight into 3D cell culture. The concept of the textbook encompasses various lectures ranging from basics in cell cultivation, tissue engineering, biomaterials and biocompatibility, in vitro test systems and regenerative medicine. The textbook addresses Master- and PhD students interested and/or working in the field of modern cell culture applications and will support the understanding of the essential strategies in 3D cell culture and waken awareness for the potentials and challenges of this application.




The History of Alternative Test Methods in Toxicology


Book Description

The History of Alternative Test Methods in Toxicology uses a chronological approach to demonstrate how the use of alternative methods has evolved from their conception as adjuncts to traditional animal toxicity tests to replacements for them. This volume in the History of Toxicology and Environmental Health series explores the history of alternative test development, validation, and use, with an emphasis on humanity and good science, in line with the Three Rs (Replacement,Reduction, Refinement) concept expounded by William Russell and Rex Burch in 1959 in their now classic volume, The Principles of Humane Experimental Technique. The book describes the historical development of technologies that have influenced the application of alternatives in toxicology and safety testing. These range from single cell monocultures to sophisticated, miniaturised and microfluidic organism-on-a-chip devices, and also include molecular modelling, chemoinformatics and QSAR analysis, and the use of stem cells, tissue engineering and hollow fibre bioreactors. This has been facilitated by the wider availability of human tissues, advances in tissue culture, analytical and diagnostic methods, increases in computational processing, capabilities, and a greater understanding of cell biology and molecular mechanisms of toxicity. These technological developments have enhanced the range and information content of the toxicity endpoints detected, and therefore the relevance of test systems and data interpretation, while new techniques for non-invasive diagnostic imaging and high resolution detection methods have permitted an increased role for human studies. Several key examples of how these technologies are being harnessed to meet 21st century safety assessment challenges are provided, including their deployment in integrated testing schemes in conjunction with kinetic modelling, and in specialized areas, such as inhalation toxicity studies. The History of Alternative Test Methods in Toxicology uses a chronological approach to demonstrate how the use of alternative methods has evolved from their conception as adjuncts to traditional animal toxicity tests to replacements for them. This volume in the History of Toxicology and Environmental Health series explores the history of alternative test development, validation, and use, with an emphasis on humanity and good science, in line with the Three Rs (Replacement, Reduction, Refinement) concept expounded by William Russell and Rex Burch in 1959 in their now-classic volume, The Principles of Humane Experimental Technique. The book describes the historical development of technologies that have influenced the application of alternatives in toxicology and safety testing. These range from single cell monocultures to sophisticated miniaturised and microfluidic organism-on-a-chip devices, and also include molecular modelling, chemoinformatics and QSAR analysis, and the use of stem cells, tissue engineering and hollow fibre bioreactors. This has been facilitated by the wider availability of human tissues, advances in tissue culture, analytical and diagnostic methods, increases in computational processing capabilities, and a greater understanding of cell biology and molecular mechanisms of toxicity. These technological developments have enhanced the range and information content of the toxicity endpoints detected, and therefore the relevance of test systems and data interpretation, while new techniques for non-invasive diagnostic imaging and high resolution detection methods have permitted an increased role for human studies. Several key examples of how these technologies are being harnessed to meet 21st century safety assessment challenges are provided, including their deployment in integrated testing schemes in conjunction with kinetic modelling, and in specialised areas, such as inhalation toxicity studies.




Tumor Organoids


Book Description

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.




Biochip Technology


Book Description

Biochip technology has experienced explosive growth in recent years and Biochip technology describes the basic manufacturing and fabrication processes and the current range of applications of these chips. Top scientists from the biochip industry and related areas explain the diverse applications of biochips in gene sequencing, expression monitoring, disease diagnosis, tumor examination, ligand assay and drug discovery.