Table 1.
Immunization | rVVhgp100 |
rVVmgp100 | rVVEShgp10025–33 | rVVESmgp10025–33 | Naive | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
In vitrostimulation | ||||||||||||||||||||||||||||
hgp | mgp | OVA | hgp | mgp | OVA | hgp | mgp | OVA | hgp | mgp | OVA | hgp | mgp | |||||||||||||||
Peptide targets | ||||||||||||||||||||||||||||
None | 264 | 584 | 236 | 137 | 0 | 51 | 279 | 428 | 5,297 | 862 | 1,082 | 1,324 | 215 | 456 | ||||||||||||||
hgp | 15,120 | 20,751 | 250 | 137 | 1 | 0 | 15,945 | 11,197 | 1,267 | 1,295 | 1,580 | 819 | 229 | 428 | ||||||||||||||
mgp | 2,567 | 19,307 | 257 | 94 | 58 | 37 | 940 | 11,268 | 1,438 | 911 | 847 | 1,629 | 215 | 527 | ||||||||||||||
OVA | 165 | 343 | 144 | 137 | 37 | 208 | 172 | 449 | 300 | 648 | 698 | 2,141 | 257 | 478 |
Mice were vaccinated with indicated rVVs, and splenocytes were isolated 3 wk later and restimulated for 6 d with 1 μg/ml peptide. Subsequent stimulation of cultured cells with hgp10025–33 or mgp10025–33 peptide resulted in IFN-γ release only by splenocytes from mice immunized with rVVhgp100 or rVVEShgp10025–33. hgp, hgp100 AA 25–33 (KVPRNQDWL); mgp, mgp100 AA 25–33 (EGSRNQDWL); OVA, ovalbumin, AA 257–264 (SIINFEKL). Four repeat experiments yielded similar results; numbers indicate IFN-γ (pg/ml) secreted by 2 × 105 CTLs in 24 h; numbers in bold indicate secretion >3-fold over control peptide.