Multiple choice

Which of the following can act as a source of adult stem cells for transplantation in humans?

  1. Bone marrow
  2. Adipose tissue
  3. Blood

  1. 1 and 2

  2. 2 and 3

  3. 1 and 3

  4. All of the above

  5. None of the above
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D Correct answer
Explanation

There are three accessible sources of autologous adult stem cells in humans:

Bone marrow, which requires extraction by harvesting, i.e. drilling into bone (typically the femur or iliac crest)

Adipose tissue (lipid cells), which requires extraction by liposuction, and
Blood, which requires extraction through pheresis, wherein blood is drawn from the donor (similar to a blood donation) and passed through a machine that extracts the stem cells and returns other portions of the blood to the donor. Stem cells can also be taken from umbilical cord blood just after birth.

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