Stem cell and regenerative medicine research is a hot area of research which promises to change the face of medicine as it will be practiced in the years to come. Challenges in the 21st century to combat diseases such as cancer, Alzheimer and related diseases may well be addressed employing stem cell therapies and tissue regeneration. Frontiers in Stem Cell and Regenerative Medicine Research is essential reading for researchers seeking updates in stem cell therapeutics and regenerative medicine. The fourth volume of this series features reviews on the use of stem cells through retrodifferentiation, mesodermal regeneration, hematopoiesis and mesenchymal stem cells. The volume also features a chapter on current knowledge on cell-based therapy in veterinary medicine.