Description: NY-ESO-1 (157–165) peptide is a peptide derived from the NY-ESO-1 protein and has the ability to activate the immune system. It is particularly effective in individuals positive for HLA-A2, as it can be recognized by CD8+ T cells, thus triggering an immune response. The presence of NY-ESO-1 (157–165) peptide in various tumors makes it a potential target for cancer immunotherapy. This peptide is also utilized in research focusing on cancer immunotherapy.