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异种移植 Xenograft -生物名词

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A tissue transplant from one species to another, e.g. from pig to human. Because of the greater differences between species, as opposed to within a species, these transplants have the least chance of working. The immune system, which is responsible for tissue rejection, will easily recognize the tissue as foreign and will reject it vigorously. Thus xenograft, or xenotransplantation is a sort of holy grail for transplantation, since animals would provide an endless supply of organs for transplantation. Pigs, although seemingly very different from humans, have similar organ organization and so remain a focus for research in this area; monkeys are another attractive group.

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