Fig. 5.

Tumor-infiltrating lymphocytes. Tumor-infiltrating lymphocytes assayed from tumors of mice treated with (R) or (S)-DOTAP/E7 a CD4⁺ and CD8⁺ cells b CD4⁺ or CD8⁺ cells per 10,000 cells in the solid tumor. n = 3–4. When comparing (R)-DOTAP to (S)-DOTAP or tumor only, P < 0.01 for CD8⁺ cells; however, (S)-DOTAP compared to tumor alone, P = 0.57. Looking at the groups with regard to CD4⁺ cells, all comparisons yield P values greater than 0.3