CD4 and neoplasm: Further, we assessed the relation between growth of tumors in mice implanted with 4T1luc2 clones (by tumor size at the experimental end point) and specific parameters of cellular immune response against autoepitope TERT2 and epitopes represented by TERT1, 6, and 8 on the example of IFN-γ/IL-2 secreting CD4+ and CD8+ T cells.