|
|
Blood, Vol. 113, Issue 26, 6629-6637, June 25, 2009

IL-7 adjuvant treatment enhances long-term tumor antigen-specific CD8+ T-cell responses after immunization with recombinant lentivector
Blood Colombetti et al.
113: 6629
Supplemental materials for: Colombetti et al
Files in this Data Supplement:
- Figure S1. Similar downregulation of CD5 on antigen-specific CD8+ T cells upon rec.lv/M-A2635 and adj/M-A2635 immunizations (JPG, 61.9 KB)
-
Mice were immunized with rec.lv/M-A2635 and adj/M-A2635. At the peak of the response (day 20 after rec.lv/M-A2635 and day 7 after adj/M-A2635 immunization) the expression of CD5 in Tet+ and Tet− CD8+ T-cell populations was measured. (A) Representative histogram plots of CD5 expression in Tet+ and Tet− CD8+ T cells. (B) Fold decrease of CD5 expression (MFI) in Tet+ CD8+ T cells compared to Tet− CD8+ T cells after immunization. Results represent the mean +∕− SD of 79 mice per group.

- Figure S2. Long-term kinetics of rec. lv-induced Melan-Aspecific CD8+ T-cell responses in the absence or in the presence of IL-7 adjuvant therapy (JPG, 16.9 KB)
-
A2/Kb mice immunized with rec. lv/M-A2635 were either left untreated (thick line) or treated with rIL-7 (5µg/day) (dashed line) during the effector phase of the immune response (day 1023). At the indicated time points after immunization, the frequency of Melan-Aspecific CD8+ T cells (Tet+) was measured ex vivo by staining peripheral blood cells with Melan-A2635/A2Kb tetramers. Each symbol represents the average of at least 7 mice. Results represent the mean +∕− SD of 7 mice per group. *, p< 0.05.

- Figure S3. IL-7 adjuvant treatment increases gp100-specific memory CD8+ T-cell responses upon immunization with rec. lv (JPG, 36.4 KB)
-
C57BL/6 mice were immunized either with rec. lv encoding gp1002533 (rec. lv/gp1002533) or with peptides gp1002533 in adjuvants (adj/gp1002533). (A) At the peak of the response, PBMC were stained with gp1002533/H-2Db tetramers. Left panels: dot plots represent the expression of CD62L and CD127 on Tet+ CD8+ T cells for one representative experiment. Right panels: mice were either left untreated (filled circles) or treated with rIL-7 (5µg/day) (empty circles) during the effector phase of the immune response (day 1020 and day 614 for rec. lv/gp1002533 and adj/gp1002533 immunizations, respectively). The number of Tet+ CD8+ T cells per ml of blood at the peak of the response is shown. (B) The number of Tet+ CD8+ T cells per ml of blood at the memory phase is shown. 5 mice per group are represented. Horizontal bars indicate mean values. *, p< 0.05.

|
|