Immunophenotyping of CD8+ T Cells in Classical Hodgkin Lymphoma Reveals a Shift Toward Intermediate Exhaustion Following PD-1 Blockade.
The immune microenvironment of classical Hodgkin lymphoma (cHL) is characterized by rare Hodgkin-Reed-Sternberg (HRS) cells surrounded by dysfunctional lymphocytes. HRS cells exploit the PD-L1/PD-1 axis to suppress antitumor immunity. Although PD1 blockade is effective in some relapsed cHL patients, the mechanisms of r...