Which type of stem cell transplant uses stem cells from a healthy donor?

The type of stem cell transplant that uses stem cells from a healthy donor is referred to as allogeneic transplantation. In this process, stem cells are sourced from a donor who is genetically different from the recipient. This approach can be advantageous because it may provide healthier stem cells that can restore the recipient’s bone marrow function and immune system, particularly in cases of diseases like leukemia or lymphoma where the patient’s own cells may be diseased or dysfunctional.

In the context of stem cell transplants, autologous transplants utilize the patient’s own stem cells, which are harvested, stored, and then reintroduced after treatment. Syngeneic transplants involve stem cells from an identical twin, which minimizes the risk of immune rejection since the genetic makeup is the same. Recombinant does not pertain to stem cell transplants specifically; it typically refers to a process in molecular biology where DNA from different sources is combined.

Therefore, the correct choice highlights the use of a healthy donor’s stem cells, which play a crucial role in treating various conditions that require a functioning blood and immune system.