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. Author manuscript; available in PMC: 2019 Aug 30.
Published in final edited form as: Xenotransplantation. 2019 Apr 29;26(4):e12517. doi: 10.1111/xen.12517

Table 3:

Transgenic expression of one or more human complement-regulatory proteins protects pig-to-nonhuman primate heart grafts

Genetic background (or model) Survival without immunosuppressive therapy (Ref) Survival with immunosuppressive
therapy (Ref)
Wild-type Mean 20–80 minutes139 15–75 minutes (n=4), 5 days (n=1)139
Anti-Gal antibody depletion Mean 15 days141 <15 days142
GTKO Mean 78 days (59–179d)142
hCD46 expression Mean 5.25 days (60min-16d)139 Mean 96 days (15–137d, n=7)143
hCD55 Mean 5.1 days144 Mean 27 days (4–139d)145
hCD59 Mean 2.5–3.0 hours146
CD55+CD59 85–130 hours147
GTKO+hCD46 Up to 236 days148
GTKO+ hCD55 Mean 28 days134
GTKO+ hCD55+CD46 Mean 21 days (15–33d)149
GTKO+hCD46+hTBM <945days150

Abbreviations: TBM=thrombomodulin.