Table 1.
mAb | Isotype | Specificitya | Epitope | Efficacy (−1 day) | Efficacy (+1 day) | Efficacy (+2 days) | Efficacy (non-human primates) |
---|---|---|---|---|---|---|---|
Murine | |||||||
13F6-1-2 | lgG2a | Z;GP1 | Linear; 401–417 | 10/10b | 10/10b | 3/10b | n.d. |
6D8-1-2 | lgG2a | Z;GP1 | Linear; 389–405 | 10/10b | 10/10b | 6/10b | n.d. |
12B5-1-2 | lgG1 | Z;GP1 | Linear; 477–493 | 6/10b | 8/10b | 1/10b | n.d. |
13C6-1-1 | lgG2a | Z, S, IC; GP, sGP | Conformational | 10/10b | 10/10b | 8/10b | n.d. |
6D3-1-1 | lgG2a | Z, IC; GP, sGP | Conformational | 9/10b | 10/10b | 9/10b | n.d. |
133/3.16 | lgG1 | Z;GP2 | Conformational | 7/8b | n.d. | 7/8b | n.d. |
226/8.1 | lgG1 | Z;GP1 | Conformational | 6/8b | n.d. | 7/8b | n.d. |
Human | |||||||
KZ52 | lgG1 | Z, GP | Conformational | 5/5c | 4/5c | n.d. | 0/4d |
n.d.= not determined
Note: many other mAb have been raised against GP and sGP [15,48,53], but have not been yet tested for neutralization in vitro and/or protection
specificity to various ebolavirus species: Z= Zaire, S= Sudan, IC= Cote d’lvoire. Note: Bundibugyo ebolavirus was not tested and affinity to each species varied. GP=virion-attached glycoprotein, sGP= non-structural, secreted glycoprotein
number of BALB/c mice surviving challenge with Zaire ebolavirus when 100 µg of mAb is administered
number of guinea pigs surviving challenge with Zaire ebolavirus when 25 mg/kg of mAb is administered
number of rhesus macaques surviving challenge with Zaire ebolavirus when 50 mg/kg of mAb is administered − and +4 days with 2 doses of mAb