Improved therapies are urgently needed for patients with diffuse large B cell lymphoma(DLBCL). Success usingimmune checkpoint\ninhibitors and chimeric antigen receptor T cell technology has fuelled demand for validated cancer epitopes. Immunogenic cancer\ntestis antigens (CTAs), with their widespread expression inmany tumours but highly restricted normal tissue distribution, represent\nattractive immunotherapeutic targets that may improve treatment options for DLBCL and other malignancies. Sperm protein 17\n(Sp17), a CTA reported to be immunogenic in ovarian cancer andmyeloma patients, is expressed in DLBCL. The aimof the present\nstudy was to investigate Sp17 epitope presentation via the presence of a cytotoxic T cell (CTL) and a CD4 T-helper (Th) response\nin DLBCL patients. A significant
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