SORU: aşağıdaki parçaya göre cevaplayınız
The passage suggests that the implantation of pig-boosted T-cells back into the original human donor ----.
Individual “banks” of immune cells taken from pigs might
one day be used to boost our own immune systems or
to fight HIV and cancer. Our immune system's T-cells,
which play a key role in fighting off diseases, are
sharpened during childhood to attack particular
pathogens after encountering them. This flexibility
diminishes after a child reaches young adulthood, but
researchers at a US university have come up with a way
to revive it. According to them, if a human's immune
cells are transferred into a young pig, they could be
brought up to maximum effectiveness (as in a child's
body), then implanted back into the person they came
from. The research team has already had success with
experiments where human stem cells were injected into
developing pig foetuses; when the piglets were born, the
injected cells had multiplied and matured into a diverse
range of human T-cells, alongside the pig's own
immune cells, that were shown to be fully functional.
The chief researcher envisions this approach eventually
being used to make human cells that fight specific
diseases. The necessary technology is available now to
introduce the technique widely, provided that regulatory
authorities can be convinced that it can be safely tested
in humans. However, the fear is that dormant pig viruses
buried in their DNA could be spread to humans. Another
potential danger is that human-derived cells might pick
up surface molecules from the pig. This could make the
transferred cells themselves targets for immune
destruction. The pigs might also produce too few human
cells to fight disease.