Co-expression profiling of long-lived donor-derived and infiltrating recipient-derived MNP. (a) Representative flow-cytometric plots and summary data showing coexpression of CD163 and CX₃CR1 on donor (blue) or recipient (red) origin “classical” Lin⁻HLA-DR⁺CD68⁺CD14⁺CD16⁻ MNPs within allografts (n = 3; three independent experiments). (b) Representative flow-cytometric plots showing CD206, CX₃CR1, and CD163 coexpression on CD68⁺ donor and recipient origin MNPs. (c) Representative flow-cytometric plots showing expression of HMOX1 on donor (blue) or recipient (red) origin “classical” Lin⁻HLA-DR⁺CD14⁺CD16⁻ MNP within allografts (n = 2; one independent experiment). Error bars, mean ± SEM.