CSC-DC vaccine-sensitized HNSCC patient PBMC T cells produce IFNγ against CSCs.
CSC-DC vaccine-sensitized patient CTLs lyses autologous CSCs.
CSC-DC vaccine-sensitized patient PBMC B cells produce antibody which binds to CSCs.
We show that the immunogenicity of HNSCC CSC is distinct from that of non-CSCs.
Our results suggest the existence of unique CSC antigens in the ALDHhigh HNSCC cells.