Furthermore, DPP7 contributes to the pathogenesis of B cell chronic lymphocytic leukaemia (B‐CLL), as B cells arrest in G0 accumulate in the peripheral blood of CLL patients, making susceptibility to DPP7‐induced apoptosis a prognostic marker for CLL outcomes [25]. This evidence concerns the gene DPP7 and B-cell chronic lymphocytic leukemia.