On the cover: Immunofluorescence histochemical staining of human pancreatic adenocarcinoma, demonstrating production of the CCR5 ligand CCL5 (staining green) by tumor cells (identified by the tumor cell surface marker EpCAM (staining red)). Areas of colocalization appear yellow. Tan, M. C. B., P. S. Goedegebuure, B. A. Belt, B. Flaherty, N. Sankpal, W. E. Gillanders, T. J. Eberlein, C.-S. Hsieh, and D. C. Linehan. 2009. Disruption of CCR5-dependent homing of regulatory T cells inhibits tumor growth in a murine model of pancreatic cancer. J. Immunol. 182: 1746–1755.