Interestingly, T lymphocytes of MS patients had significantly higher expression levels of Kv1.3 mRNA (mean expression ratio: 1.32 ± 0.18, n = 34) as compared to T lymphocytes of healthy individuals (0.76 ± 0.16, n = 20, p < 0.001) (Figure 4Β). The gene discussed is KCNA3; the disease is myeloid sarcoma.