| Sumario: | De novo ectopic lymphoid tissue formation is known to occur in certain disease and inflammatory settings. After an effective vaccination with dendritic cells (DC) charged with melanoma apoptotic/necrotic cells (Apo/Nec), a subcutaneous tertiary lymphoid structure was organized, where retained vaccine cells interacted with recruited inflammatory and T cells. In this work we report for the first time the recruitment of two morphologically different CD207+ cells to vaccination site. The time-course behavior of CD207+ cells was reciprocal between vaccination site and draining lymph nodes (DLNs). After 6-10 days, CD207+ cells localized at the paracortical region of DLNs, in close contact with T cell population. DLNs were enriched in a peculiar MHCII+ CD11c(-) CD207+ population, whose role remains to be determined. Whether CD207+ cells migration to the vaccination site can be associated with a differential anti-tumoral response remains as an open and exciting question. © 2014 Elsevier Ltd. All rights reserved.
|
|---|