Also limiting the use of therapeutic
stem cells to date, self - renewal, a quality so vital to a fast - growing fetus, can also be a source of cancer risk when haphazard, unlimited
cell multiplication results in the abnormal tissue growth seen in tumors.
In both cases, the mechanisms are similar: the «good» mechanism regulates healthy blood
stem cells during an infection, whilst the «bad» one leads to the
multiplication of leukemia
stem cells.