TABLE 5.
Cytolytic activity of lesion-derived, tegument-specific CD4 TCC, with summary of fine specificity and HLA restriction
TCC | Specificitya | HLA restrictionb | % Specific releasec with the following cytolysis assay target:
|
|||||
---|---|---|---|---|---|---|---|---|
Auto HSV-2 | Auto peptide | Auto mock | Allo HSV-2 | Allo peptide | Allo mock | |||
Newly reported epitopes | ||||||||
4.2E1 | VP22 105-126 | DPB1*2001 | 20.7 | 44.2 | −4.1 | −2.9 | −1.7 | 4.6 |
ESL4.9 | VP22 187-206 | DRd | −0.6 | 20.2 | 1.3 | 0 | 0 | 0 |
ESL2.20 | UL21 148-181 | DRd | 2.7 | NA | 0.9 | 0 | NA | 0 |
1.L3D5.10.8 | VP22 125-146 | DRe | 1.1 | 61.1 | −0.3 | −0.4 | −0.6 | −0.4 |
1.L3D5.10.12 | VP22 125-146 | DRe | 2.5 | 57.6 | 1.6 | −0.1 | −2.5 | −1.4 |
RH.13 | VP16 185-197 | DR4 | 62.5 | 55.2 | −0.9 | 9.6 | 0.3 | 1.8 |
KM.7 | VP16 209-221 | DR2 | 38.7 | 43.6 | 2.7 | −2.2 | 4.3 | −1.1 |
BM.17 | VP16 437-449 | DQB1*0501 | 10.1 | 28.5 | −0.3 | ND | ND | ND |
SB.17 | VP16 437-449 | DQB1*0501 | 48.7 | 60.6 | 5.4 | ND | ND | ND |
2.3 | UL50 118-250 | DRB1*0301 | 0.8 | NA | 0 | 1.1 | NA | 0 |
Previously described epitopes | ||||||||
ESL4.34 | VP16 393-405 | DRB1*0402 | 2.1 | 10.4 | 1.0 | 0.5 | 0.6 | 0.3 |
ESL3.334 | VP16 430-444 | DQB1*0302 | 12.3 | 33.6 | 0.7 | 1.4 | 0.3 | 2.2 |
1A.B.25 | VP16 431-440 | DQB1*0201 | 24.3 | 42.2 | 1.9 | 1.7 | 2.1 | −0.4 |
Indicates peptide used (1 μM) to load targets in CTL assay for selected TCC.
Maximum extent of definition of HLA restricting locus and/or allele. Subjects 6 and 7 were typed serologically; others were typed at the DNA level.
At an effector-to-target ratio of 20:1, except for ESL4.34 (10:1). Auto, autologous EBV-LCL as target cells; allo, allogeneic EBV-LCL mismatched at the relevant HLA locus (if known) or mismatched at HLA-DR and -DQ. NA, not available, since epitope mapping was not done and synthetic antigenic peptide was not made; ND, not done.
Subject is heterozygous for HLA DRB1*0402 and DRB1*1301, and restricting allele has not been determined.
Subject is heterozygous for HLA DRB1*0301 and DRB1*1102, and restricting allele has not been determined.