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Why does the immune system begin to attack a newly transplanted organ?

1 doctor weighed in
Dr. Joseph Woods
Pathology

In brief: B/c it is foreign.

A newly transplanted organ is still from another body.
The immune system recognizes this as foreign because it has slightly or greatly different hla/tissue types in its cells. These are matched as well as possible before transplant, but there are usually some differences as no two peopl;e are alike. Thus, it attacks it and will kill it unless immunosuppression is done by drugs, etc.

In brief: B/c it is foreign.

A newly transplanted organ is still from another body.
The immune system recognizes this as foreign because it has slightly or greatly different hla/tissue types in its cells. These are matched as well as possible before transplant, but there are usually some differences as no two peopl;e are alike. Thus, it attacks it and will kill it unless immunosuppression is done by drugs, etc.
Dr. Joseph Woods
Dr. Joseph Woods
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