Microenvironmental Trial of Classical Hodgkin Lymphoma in Adolescents

Background. Classical Hodgkin's lymphoma (cHL) in adolescents between 15 and 18 years shows a higher disease-related mortality and the overall prognosis is worse than both children and adults. Objectives. To investigate the immune checkpoint inhibitors (ICPI) therapeutic targets and specific T-regulatory and cytotoxic T-cell subsets, in the subgroup of adolescent cHL patients and to investigate their prognostic power. Methods: Retrieved formalin-fixed paraffin-embedded (FFPE) of adolescent patients diagnosed with cHL with available clinical and tested by immunohistochemistry the immune checkpoint molecules CTLA-4, LAG-3, PD-1 and PDL1 and the biological markers FOXP3 and CD8.