B2M and neoplasm: Additionally, although all agents increased the expression of anti‐tumor immunomodulatory proteins related to antigen presentation (MHC‐I, B2M) and T cell chemokines (CXCL9, 10, 11), CDK4/6i‐induced senescent cells still maintained this expression at a similar or even higher intensity than cells treated with DNA‐damaging agents, despite the absence of nuclear factor‐kappa‐B (NF‐κB) and p53 activation.