This book provides the first comprehensive account of multilineage-differentiating stress-enduring (Muse) cells, a pluripotent and non-tumorigenic subpopulation of mesenchymal stem cells (MSCs) that have the ability to detect damage signals, migrate to damaged sites, and spontaneously differentiate into cells compatible with the affected tissue, thereby enabling repair of all tissue types. The coverage encompasses everything from the basic properties of Muse cells to their tissue repair effects and potential clinical applications—for example, in acute myocardial infarction, stroke, skin injuries and ulcers, renal failure, and liver disease. An important technical chapter provides a practical and precise protocol for the isolation of Muse cells, which will enable readers to use Muse cells in their own research. In offering fascinating insights into the strategic organization of the body’s reparative function and explaining how full utilization of Muse cells may significantly enhancethe effectiveness of MSC treatment, the book will be of high value for Ph.D. students, postdocs, basic researchers, clinical doctors, and industrial developers.