In addition, there is evidence indicating that KV1.3 channels are more expressed in different types of leukemias and lymphomas, compared to that of normal B lymphocytes, with the levels of KV1.3 expression correlating with increased proliferation rates and overall aggressiveness of these tumors (Comes et al., 2013; Leanza et al., 2013). This evidence concerns the gene KCNA3 and lymphoma.