All chapters include innovative basic research for clinical application: immunotherapy, cancer vaccination, molecular biology of hematopoietic stem cells, stem cell processing, and gene therapy. The book is divided into three parts: Immunotherapy for malignant diseases; Hematopoietic stem cell biology and clinical application; and International collaboration in hematopoietic stem cell transplantation. Included in the third part is information on bone marrow registries from around the world. The book thus presents up-to-date information on biological and clinical aspects of treatment, with insight into the future of cell therapy.