Inhibitor Griffithsin (nM) Dose reduction P<0.05 Inhibitor Dose reduction P<0.05
Alone Combi Alone Combi
b12mAb (μg/ml) 0.057 ± 0.015 0.019 ± 0.006 3.1 0.058 0.074 ± 0.031 0.038 ± 0.013 1.9 0.323
2F5 mAb (μg/ml) 0.094 ± 0.017 0.024 ± 0.004 4.0 0.016 3.6 ± 1.6 1.2 ± 0.2 3.0 0.200
2G12 mAb (μg/ml) 0.082 ± 0.014 0.070 ± 0.000 1.2 0.487 >100 >100    
AMD3100 (μM) 0.11 ± 0.03 0.040 ± 0.020 2.8 0.111 4.1 ± 3.2 0.50 ± 0.24 8.1 0.332
BanLec (nM) 0.10 ± 0.01 0.043 ± 0.013 2.4 0.012 0.54 ± 0.17 0.15 ± 0.05 3.6 0.073
T20 (μM) 0.10 ± 0.02 0.032 ± 0.001 3.2 0.039 0.098 ± 0.059 0.029 ± 0.011 3.4 0.293
PRO2000 (μM) 0.088 ± 0.008 0.047 ± 0.004 1.9 0.009 0.084 ± 0.003 0.048 ± 0.004 1.8 0.003
aMean EC50s ± SEM up to 4 independent experiments
P<0.05 (unpaired T-test), compared to single drug treatment
Table 1: EC50sa of GRFT and various entry inhibitors, alone and in combination, in the HIV-1 induced cell-cell assay (giant cell assay).
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