In addition, the intermediate/high value of Mantle Cell Lymphoma International Prognostic Index (MIPI) (MIPI ≥ 4), high Ki-67 value (Ki-67 > 30%), and blastoid variant were each correlated with inferior PFS and OS of MCL (Fig. 4b–d, respectively). This evidence concerns the gene MKI67 and mantle cell lymphoma.