Antitumor activity of KM100+5 μmol/L MTX treatment in the presence or absence of CD8+ T cells in BALB-neuT mice bearing subcutaneous tumors of TUBO cells. Antitumor activity of KM100+5 μmol/L MTX treatment in the presence or absence of CD8+ T cells in BALB-neuT mice bearing subcutaneous tumors of TUBO cells. A, Kaplan–Meier survival estimates of tumor-bearing, KM100 + MTX–treated BALB-neuT mice in the presence and absence of CD8+ T cells. The statistical significance of the survival differences was analyzed using log-rank (Mantel–Cox). B, the tumor volume of mice treated either KM100 + 5 μmol/L MTX in the presence and absence of CD8+ T cells. Except the depletion study, the rest of the data are pooled from three independent experiments. The statistical significance of the survival differences was analyzed using the Kruskal–Wallis test. ***, P < 0.0005. Samuel T. Workenhe et al. Cancer Immunol Res 2013;1:309-319 ©2013 by American Association for Cancer Research