Minor Histocompatibility Antigen

Minor histocompatibility antigen (a.k.a. MiHA) are receptors on the cell surface of donated organs that are known to give an immunological response in some organ transplants. They cause problems of rejection less frequently than those of the major histocompatibility complex (MHC).

Minor histocompatibility antigens are due to normal proteins that are in themselves polymorphic in a given population. Even when a transplant donor and recipient are identical with respect to their major histocompatibility complex genes, the amino acid differences in minor proteins can cause the grafted tissue to be slowly rejected.

Read more about Minor Histocompatibility Antigen:  Clinical Implications

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Minor Histocompatibility Antigen - Clinical Implications
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