ISG product levels predict CR after ILP.
The serum concentration of (a) CXCL10, (b) CCL2, (c) PD-L2 and (d) IFN-γ in melanoma patients achieving a complete response (CR) and not achieving a complete response (Non-CR) before (pre-op.) and 1 month after (post-op.) ILP (non-paired Mann-Whitney test). The serum concentration of (e) CXCL10, (f) CCL2, (g) PD-L2 and (h) IFN-γ in melanoma patients and in healthy controls (Ctrl) (paired Wilcoxon test between pre-op. and post-op., non-paired Kruskal-Wallis test followed by Dunn’s multiple comparison test for ctrl vs. pre-op. and vs. post-op). Data are presented in box-and-whiskers plots with min. and max. (i,j) Patients were dichotomized by above or below median levels of CXCL10, CCL2, PD-L2 and IFN-γ and were grouped based on having above median levels of 0–1 ISG products, or 2–4 ISG products. The fraction of patients within each group achieving CR or not (non-CR) are shown for ISG-grouping based on (i) pre-op. samples (n = 38) and (j) post-op. samples (n = 11; Fisher’s exact test).