This is the first time that in vitro generated HPCs were transplanted and used to establish long - term engraftment in allogeneic immunocompetent mice, resulting in the protection of donor type grafts from
immunological rejection.
Moreover, if embryonic stem cells were cloned from the patient, he or she wouldn't have problems with
immunological rejection of the cultured tissue.
As a parasite species evolves, it continuously tries to match its surface antigens to those of its host to evade
immunological rejection.