alloreactive

adjective

al·​lo·​re·​ac·​tive ˌa-lō-rē-ˈak-tiv 

: reacting in response to a transplanted allograft

Renal-allograft rejection depends on the coordinated activation of alloreactive T cells and antigen-presenting cells …

—Manikkam Suthanthiran and Terry B. Strom, The New England Journal of Medicine

alloreactivity

ˌa-lō-(ˌ)rē-ˌak-ˈti-və-tē 

noun

plural alloreactivities

T cell alloreactivity

alloreactivity of natural killer cells