(2) Enhanced transcript levels of TOX correlate with increased risk of disease-specific mortality in CTCL: Further experiments showed that TOX expression levels in CTCL skin biopsies and in peripheral-blood-purified malignant CTCL cells were positively correlated with disease-specific mortality of CTCL patients [9]. Here, TOX is linked to primary cutaneous T-cell non-Hodgkin lymphoma.