• adult stem cell;
  • developmental stem cell;
  • Duchenne muscular dystrophy;
  • dystrophin;
  • embryonic stem cell;
  • ES;
  • neurogenesis;
  • Parkinson;
  • proliferation


Over the last few years, an impressive number of papers have addressed the stem cell issue. However, as often occurs when a scientific subject undergoes a period of fast growth, some confusion is generated. To help reduce the existing uncertainty, this paper focuses on the concept of adult stem cells in relation to the classification of cell populations on the basis their proliferative behavior. Particular attention is dedicated to adult neural stem cells, an issue that has recently seen the most amazing advances. Finally, the concept of adult stem cells is differentiated from that of developmental stem cells in relation to the employment of stem cells for transplantation therapies. Anat Rec (New Anat) 265:132–141, 2001. © 2001 Wiley-Liss, Inc.