Hematopoietic (hee-MA-toh-poy-EH-tik) stem cells (usually just called stem cells) grow into all types of blood cells. The white blood cells fight infection, red blood cells carry oxygen, and platelets ...

Stem cells can be unipotent, multipotent, pluripotent or totipotent, depending on the number of cell types to which they can give rise. In individuals receiving an allogeneic haematopoietic cell ...