[38] The potential immunosuppressive action of IL-5 was observed by Shohat et al. [23] by comparing the IL-2, IL-2R, IL-5, IL-10, and IFN gamma levels in the peripheral blood mononuclear cells (PBMCs) of healthy volunteers and CTCL patients. Here, IFNG is linked to primary cutaneous T-cell non-Hodgkin lymphoma.