The trimers and tetramers of the GlcNAc binder STL had significantly increased NFIs in LD-SCLC and ED-SCLC compared with BPD, and had significantly increased NFIs in LD-SCLC compared with HV (all fold change ≥ 1.55, p ≤ 0.046) (Fig. 1E). Here, RNF217-AS1 is linked to small cell lung carcinoma.