HLA-C and neoplasm: Furthermore, we also found enhanced expression of major histocompatibility complex (MHC)-I and MHC-II molecules in NDV-GP-infected tumor cells and specific killing of these tumor cells by LCMV GP-specific T cells (Extended Data Fig. 4e–g), indicating MHC presentation of LCMV GP epitopes by NDV-GP-infected tumor cells to LCMV GP-specific T cells.