Blood plays an important role in the functioning of an organism. And blood stem cells are responsible for blood cell formation.

Get information about these cells, read about where in the human body they appear and what happens when a disease like leukemia disrupts the function of the blood stem cells.

With some diseases, the cure consists of total destruction and subsequent transplantation of blood stem cells. In order for this transplantation to be successful, the tissue type of the donor must exactly match with the tissue type of the recipient.