CD11c⁺ MHCII^lo GM-CSF-bone marrow-derived dendritic cells act as antigen donor cells and as antigen presenting cells in neoepitope-elicited tumor immunity against a mouse fibrosarcoma.

ABSTRACT: Dendritic cells play a critical role in initiating T-cell responses. In spite of this recognition, they have not been used widely as adjuvants, nor is the mechanism of their adjuvanticity fully understood. Here, using a mutated neoepitope of a mouse fibrosarcoma as the antigen, and tumor rejection as the end point, we show that dendritic cells but not macrophages possess superior adjuvanticity. Several types of dendritic cells, such as bone marrow-derived dendritic cells (GM-CSF cultured or FLT3-ligand induced) or monocyte-derived ones, are powerful adjuvants, although GM-CSF-cultured cells show the highest activity. Among these, the CD11c⁺ MHCII^lo sub-set, distinguishable by a distinct transcriptional profile including a higher expression of heat shock protein recept

SUBMITTER: Ebrahimi-Nik H 

PROVIDER: S-EPMC6132860 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature