“…While subtyping based on genomic and transcriptomic analyses has greatly improved our understanding of SCLC, the resulting subtypes correlated poorly with clinical outcomes. In contrast, subtyping with proteomics had revealed its exceptional clinical potential for more accurate predication of prognosis, chemo-sensitivity, and treatment targets for myriad cancers including stomach [19,20], liver [21,22], ovarian carcinoma [23] , colorectal cancer [24], and NSCLC [25,26,27,28,29]. Here, we report a proteomic subtyping model derived from a discovery dataset containing 75 surgically resected formalin-fixed, paraffin-embedded (FFPE) samples.…”