Supplementary Figures S1-S3 from Peptide-Loaded Langerhans Cells, Despite Increased IL15 Secretion and T-Cell Activation &lt;i&gt;In Vitro&lt;/i&gt;, Elicit Antitumor T-Cell Responses Comparable to Peptide-Loaded Monocyte-Derived Dendritic Cells &lt;i&gt;In Vivo&lt;/i&gt;