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.