The second is the cutaneous T-cell lymphoma-associated antigen 5 gene (ctage5), a tumour antigen on cutaneous T-cell lymphoma (CTCL) whose function has been related to protein, lipoprotein, insulin, and collagen secretion, transport of cellular (non-secretory) components of neurones, brain development, and expansion of plasma membrane (Zhang et al., 2018). Here, INS is linked to primary cutaneous T-cell non-Hodgkin lymphoma.