Surprisingly, reconstitution of MCs—whether from Apoe−/− mice or Apoe−/−Fcer1a−/− mice—did not significantly increase recipient mice AAA lesion macrophage content, while lesion T cells, MHC class-II-positive areas, or lesion cell proliferation all tended to recover after BMMCs adoptive transfers, although these trends did not achieve statistical significance (Supplementary Fig S10). Here, APOE is linked to triple-A syndrome.