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.

Ras proteins are key molecular switches in cell signaling pathways that, when activated, trigger cell growth and division. Mutations that produce abnormally active Ras proteins are common in human cancers, particularly those of the pancreas, lung, and colon. These cancers can be difficult to treat because Ras oncoproteins have long been considered 'undruggable.' Written and edited by experts in the field, this collection from Cold Spring Harbor Perspectives in Medicine covers the recent progress that has been made in understanding Ras biology, how Ras activation leads to tumorigenesis, and ways in which oncogenic Ras signaling may be targeted therapeutically. The contributors review the biochemical characteristics of the different Ras isoforms (HRAS, KRAS, and NRAS), their main effectors and signaling pathways, and the mutations that lead to their constitutive activation. Recent work showing that some Ras oncoproteins may be effectively inhibited by small molecules is covered, as is work on alternative targets (e.g., enzymes that catalyze posttranslational modifications of Ras) and inhibitors (e.g., nucleic acids). The authors also discuss how organoids and mouse models are being used to study tumor progression and therapeutic efficacy. This volume is therefore essential reading for all cancer biologists, cell and molecular biologists, and pharmacologists concerned with understanding and treating Ras-driven cancers.

The aim of volume 7 of Human Cell Culture is to provide clear and precise methods for growing primary cultures of adult stem cells from various human tissues and describe culture conditions in which these adult stem cells differentiate along their respective lineages. The book will be of value to biomedical scientists and of special interest to stem cell biologists and tissue engineers. Each chapter is written by experts actively involved in growing human adult stem cells.

This volume provides a comprehensive collection of classical and cutting edge protocols and techniques to examine the normal development and physiological functions of the gastrointestinal system and to model the most common digestive diseases. The chapters focus on diverse research topics including ex vivo systems to study gastrointestinal development and functions, in vivo imaging of the gastrointestinal tract, isolation and characterization of intestinal immune cells, and animal models of gastrointestinal inflammation and cancer. The Gastrointestinal Physiology and Diseases: Methods and Protocols book targets wide audience of physiologists, cell and developmental biologists, immunologists, and physician-scientists working in the field of gastroenterology and beyond. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Highly practical and clearly written, Gastrointestinal Physiology and Diseases: Methods and Protocols will serve both seasoned researchers as well as newcomers to the field and will provide a unique resource and expert guidance to modern laboratory techniques developed for examining normal functions and diseases of the gastrointestinal tract.

Organs and Mini-Organs 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

Clinical Pancreatology Since the book Clinical Pancreatology for Practising Gastroenterologists and Surgeons was first published sixteen years ago, the knowledge and clinical management of pancreatic diseases have developed markedly. Thanks to the development of the translational research and the from bench to bedside concept, much progress from the lab has been applied to clinical practice. In addition, several highly relevant clinical trials published over the last years have resulted in the update and optimisation of clinical guidelines. A new and validated classification of severity and complications of acute pancreatitis is firmly rooted in clinical practice and has been the basis for the development of minimally invasive approaches to pancreatic necrosis. The etiopathogenic knowledge of chronic pancreatitis and other pancreatopaties, like that associated with diabetes mellitus, has developed significantly. Especially important has been the development of the field of cystic pancreatic tumours, which has been reflected in the publication of several guidelines and consensus reports over the last few years. Most research efforts have focused on pancreatic cancer, which have led and will further lead to a significant increase in the therapeutic armamentarium against this devastating disease. Finally, many newly published studies have changed the concept, causes, clinical relevance, diagnosis and treatment of exocrine pancreatic insufficiency. This new edition of Clinical Pancreatology for Practising Gastroenterologists and Surgeons has enjoyed the collaboration of the world’s leading experts in each of the areas of clinical pancreatology with the aim of facilitating gastroenterologists, surgeons, oncologists, internists, nutritionists, diabetologists, paediatricians, radiologists, pathologists and other specialists in their decision making when facing patients with pancreatic diseases in their daily clinical practice. All in all, this book supplies an indispensable update of the relevant aspects of clinical pancreatology.