“…In fact, tumor mutational burden, known to enhance neoantigen formation, has been shown to be associated with increased response to ICBs, and in some cases improved OS as well, across tumor types such as melanoma [99,100], NSCLC [101], and UC [54,56,102]. Baseline gene expression profiling has also been correlated with response to ICBs; specifically, interferon gamma (IFNγ) signature, which is indicative of an inflammatory tumor microenvironment, is associated with responsiveness to ICBs in several tumor types, including melanoma [103], UC [32,54,104,105], NSCLC [58,106], HNSCC [103], and gastric cancer [103].…”