STING1 and mature T-cell and NK-cell non-Hodgkin lymphoma: Western blotting (WB) showed that the cGAS‐STING pathway was activated in five human PTCL cell lines (Hut78, MT‐4, Hut102, Karpas 299, and H9) and one murine T‐cell lymphoma (TCL) cell line (EL4) (Figure 2J).